VA MVA - GE Grid Solutions · Power Supply; AC/DC AC/DC AC/DC AC/DC AC/DC AC/DC AC CT Inputs 5/1A 5/1A 5/1A 5/1A 5/1A 5/1A 5 Self-Test Failure Contact ... Mechanical Jam

“O” option

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MM2 269 Plus 369239 469 SPM

FEATURES DEVICE 239 269 PLUS 369 469 M60 MM2 SPM

Overspeed or Underspeed 14 UUndervoltage, Phase/Aux 27P/X O O P/X Undervoltage, Symmetrical Component 27VUndercurrent 37 O Loss of Field 40 Reverse-Phase or Current Unbalance 46 Reverse Phase Sequence Voltage 47 O O Incomplete Sequence 48 Thermal Model Overload 49 Voltage-Dependent Overload 49/51 Sensitive Directional Power IOC, Ground/Neutral/Phase 50G/N/P G/N/P G/N/P G/N/P G/N/P G/N/P GIOC, Symmetrical Component 50I Locked Rotor 50S TOC, Ground/Neutral/Phase 51G/N/P G/N G/N G/N G/N GPower Factor 55 O O Overvoltage, Neutral/Phase/Aux/NPS 59N/P/X/-2 P(O) P(O) P P/X/-2 PGround Detector 64 Starts per Hour 66 O Underfrequency 81U Differential, Stator Field Overtemperature 49F FlexElements™ Power Supply; AC/DC AC/DC AC/DC AC/DC AC/DC AC/DC ACCT Inputs 5/1A 5/1A 5/1A 5/1A 5/1A 5/1A 5Self-Test Failure Contact Settings Groups 4 1 8Flash Memory Contact Inputs (Programmable) – up to 2 5 4 48 10Contact Outputs (Fixed) – up to 1 4 2 2 3Contact Outputs (Programmable) – up to 3 4 4 48 2Virtual Inputs Virtual Outputs Display Keypad Trip/Close Coil Supervision T T/CProgrammable Logic User-Programmable LEDs Timers Digital Counters Digital Elements IRIG-B Input Analog Outputs 1(O) 1 1+3 (O) 4Mechanical Jam Time Between Starts O Acceleration Time Hot Motor RTD Feedback O Stator RTD Alarm O O Bearing RTD Alarm O O RTD Broken Alarm O O RTD Short/Low Alarm O Current – RMS Current – Phasor RTDs O (3) 10 O (12) 12 OMW, MVA, Mvar O O Frequency O O Analog Inputs 4 O 1Analog Input Element Event Recorder Oscillography (Waveform Capture) Interface Program RS232 Port 1 1 1RS485 Port 1 1 3 2 1/2 1 1Baud Rate 19.2k 2.4k 19.2k 19.2k 115k 19.2k 19.2k10 BaseF Port 0/1/2ModBus® Protocol ModBus® User Map DNP3 Protocol UCA2/MMS Protocol TCP/IP O Drawout Case O Remote Start Remote Stop Emergency Restart Remote Display O OReduced Voltage Starting Dual Overload Curves (Two-Speed Motors) O Start Inhibit O Exponential Running Cooldown Restart Block (Anti-Backspin Timer) Synchronization/Re-synchronization Learned Motor Parameters Motor Historical Data Pre-Trip Values Auto Restart O

VA MVA

M60

CO

NT

RO

L

MOTOR Selector Guide

142 www.GEindustrial.com/Multilin

7

143

7

UR Motor Management Relay®

Features and Benefits

FlexLogic™ and distributed FlexLogic™

Virtual and expandable I/Os

User-programmable LEDs

User-definable display messages

Flash memory for field upgrades

Common drawout modules

Diagnostic features – event recordingand oscillography

IRIG-B time synchronization

Applications

Protection for medium and large horse-power induction motors

Stand-alone or component in automatedsubstation control system

enerVista.com compatible (see page 275)

Protection and Control

Thermal overload, overcurrent, over-voltage, undervoltage and reversephase sequence

Stator-restrained differential

FlexElement™ universal comparator

Monitoring and Metering

Stator temperatures

Current, voltage, power, power factor,frequency and energy

User Interfaces

URPC software for setting, monitoring

RS232, RS485 and Ethernet ports

Medium and large

induction motor relay.

GE Multilin

RTD bias center point: the centerpoint temperature and thermalcapacity used values are the ratedrunning temperature and valuedetermined by the hot/cold safestall ratio respectively

For values between the RTD biasmaximum and minimum, thepresent thermal capacity usedcreated by the overload curve iscompared to the RTD bias thermalcapacity. If the RTD bias thermalcapacity used value is higher, it isused from that point forward.

RTD bias curve.

Motor Cooling Time Constants

The thermal capacity used value isreduced exponentially when themotor current is below the overloadpickup setpoint. This reductionsimulates motor cooling. The motorcooling time constants areprogrammed for both the stoppedand running cases. The thermalmodel will track motor heating andcooling cycles accurately andalways provide optimum protection.

Exponential cooldown (hot/cold curve ratio 60%).

Start Inhibit

This function prevents starting ofa motor when insufficient ther-mal capacity is available for asuccessful start.

Th

erm

al

Ca

pa

cit

y U

se

d

Time in Minutes

100

75

50

25

0

0 50 100 150 200 250

806810A3.cdr

Iavg @ 100% FLA

Iavg @ 50% FLA

ProtectionThe M60 is a digital motormanagement relay designed forthe protection of medium andlarge induction motors. The M60,part of the Universal RelayFamily, offers advanced protec-tion which includes:

Motor Thermal Model

This consists of six key elements:

Overload curves

Unbalance biasing

Hot/cold motor compensation

Motor cooling time constantsbiasing

Start inhibit

Emergency restart

Overload Curves

The M60 overload curve can takeone of two formats: standard orFlexcurve. For all curve styles thealgorithm retains thermal memoryin a thermal capacity register.

The user can create a custom curve,or use manufacturer’s curves. TheM60 standard overload curvesconsist of a curve shape with amultiplier value of one to 600.

Unbalance Bias

Unbalanced phase currents cancause rotor heating which is notshown in the motor thermaldamage curve. Negative sequencecurrent, which is generated byunbalanced phase currents, has afrequency that is approximatelytwo times the line frequency.

The thermal model may be biasedto reflect additional heatingcaused by negative sequencecurrent when the motor isrunning. This biasing is done bycreating an equivalent motorheating current.

Medium motor derating factor due tounbalanced voltage. Note that the k=8 curve isalmost identical to the NEMA derating curve.

Hot/Cold Motor Compensation

The algorithm can protect themotor based on the hot/cold ther-mal damage information providedby the motor manufacturer. A twopart curve is constructed usingthree points:

RTD bias minimum: if the mini-mum stator RTD is below this pointno biasing occurs (typically 40° C)

RTD bias maximum: if the maxi-mum stator RTD temperature isabove this setpoint the thermalmemory is fully biased and ther-mal capacity is forced to 100%used (this is typically at thestator insulation rating)

M60 UR Motor Management Relay®

www.GEindustrial.com/Multilin144

7

TYPICAL CUSTOM CURVE

6500 HP, 13800 VOLT INDUCED DRAFT FAN MOTOR10000

1000

100

10

1.0

0.10.5 1.0 10 100 1000

806803A5m60.cdr

MULTIPLE OF PER UNIT CURRENT

TIM

E T

O T

RIP

IN

SE

CO

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S

1

1

2

2

3

3

4

4

5

5

PROGRAMMED FLEXCURVE

RUNNING SAFETIME (STATOR LIMIT)

ACCELERATION SAFETIME (ROTOR LIMIT)

MOTOR CURRENT @ 100% VOLTAGE


RT

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RTD Bias Maximum

RTD Bias MinimumRTD Bias CenterPoint

100

90

80

70

60

50

40

30

20

10

0

-50 0 50 100 200 250150

Maximum Stator RTD Temperature (°C)806809A3M60.cdr

1.00

0.95

0.90

0.85

0.80

0.75

0.700

PERCENT VOLTAGE UNBALANCE derafacta2.ai

DE

RA

TIN

G F

AC

TO

R

1 2 3 4 5

k=2

k=4

k=6

k=8

k=10

Functional BlockDiagram

833708A5.CDR

59P,X

50G 51G

46 49 50N

87S

27P,X 59_2

Metering

TRIP CLOSE 32

M60 Motor Management Relay®

M

52

Typical Flexcurve™ overload curve.

Emergency Restart

This function resets the presentThermal Capacity Used to 0% tofacilitate an immediate emergencyHot start that would otherwise besubject to a cooling time.

An overload trip will still occurwhen the Thermal Capacity Usedreaches 100%.

Stator Differential

When used on the stator windingsof rotating machinery, this element


www.GEindustrial.com/Multilin 145

7

833700AV.CDR

ABC

CIRCUIT BREAKER

No. 10AWGMinimum

GROUND BUS

AC or DC

DC

( D

C O

NLY

)

Groundat remote device

Shieldedtwisted pairs

Co-axial

M60 UR Motor Management Relay

RS-232

DB-9

(front)UR COMPUTER

1

TXD RXDRXD TXD

SGND SGND

1 83220764522

25 PINCONNECTOR

9 PINCONNECTOR

2 23 34 45 56 67 78 89 9

CONTACTS SHOWNWITH NO

CONTROL POWER

TYPICAL CONFIGURATIONTHE AC SIGNAL PATH IS CONFIGURABLE

POSITIVE WATTS

TC

TC

2

1

VO

LTA

GE

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PV

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PV

.

1a

2b

1c

1b

2c

2a

4a

4c

3b

3a

4b

3c

CONTACT IN 5a

CONTACT IN 7a

CONTACT IN 5c

CONTACT IN 7c

CONTACT IN 6a

CONTACT IN 8a

CONTACT IN 6c

CONTACT IN 8c

COMMON 5b

COMMON 7b

SURGE

6a

8a

5b

7b

8b

5aP

P

P

P

P

P

P

P

P

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PPPPP

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7a

6c

8c

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1

2

3

4

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DIGITAL I/O 6G

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I/O

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CRITICALFAILURE

48 VDCOUTPUT

CONTROLPOWER

HILO

PO

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UP

PLY

1

FILTERSURGE

3a

1b

8a

6b

8b

6a

B

B

B

B

B

B

B

B

B

B

3b

1a

2b

5b

9A

COM

COM

C

PU

D3b

D4b

D5b

D2a

D3a

D4a

D5a

D6a

D7b

RS485COM 1

RS485COM 2

IRIG-B

SURGE

1c

4a

FFFFFFFFFFFFFFFFFF

3c

5a

5c

7c

CURRENT INPUTS

6a

7a

6c

2c

VA

VB

VC

4c

1a

4b

1b

2a

3a

2b

3b

VOLTAGE INPUTS8A / 8B

VA

VB

VC IA IB IC IGIA5

IA1

IB5

IC5

IG5

IB1

IC1

IG1

52

(Rear View)

VERTICALMODULE ARRANGEMENT

(Rear View)

1PowerSupply

9

CPU

HORIZONTAL MODULE ARRANGEMENTJU MX LW KV BHT DN GS P FR

6

I/O

5

RTD

8

VT/CT

8

VT/CT* Optional* Optional **

1PowerSupply

9CPU

8CT/VT

8CT/VT

5RTD

6I/O

J

M

L

K

B

H

D

N

G

P

F

R

S

3c

4c

4b

4a

1c

1a

MMMMMMMMMMMM

1b

3b

CURRENT INPUTS8A / 8B

2a

3a

2b

2c

IA IB IC IGIA5

IA1

IB5

IC5

IG5

IB1

IC1

IG1

MODULES MUST BEGROUNDED IF TERMINAL IS

PROVIDED

GE Multilin

RTD 5

RTD 7

RTD 6

RTD 8

for RTD 5 & 6

for RTD 7 & 8

RTD 1

RTD 3

RTD 2

RTD 4

for RTD 1 & 2

for RTD 3 & 4

SURGE

H

HH

H

H

HH

H

H

HH

H

H

HH

H

Hot

Hot

Comp

Comp

Return

Return

Hot

Hot

Comp

Comp

Hot

Hot

Comp

Comp

Return

Return

Hot

Hot

Comp

Comp

5a

5b

4a

5c

4c

1a

3b

2a

2c

3a

1c

3c

1b

7a

7b

8c

6a

7c

8a

6c

8b

P

P

P

P

Typical Wiring

automatically compensates for amismatch up to a factor of tenbetween current transformerratios. External fault restraint isprovided by a dual slope percentdifferential approach with asmooth transition between the twoslope regions.

Overcurrent Protection

IOC functions are available forphase, ground and neutralcurrents. TOC function is avail-

able for the ground current. Avariety of standard time curvesare provided plus two user-programmable curves.

Sensitive Directional Power

This two-stage function is suit-able for sensitive reverse andlow-forward power detection.The element measures three-phase power and accepts deltaand wye connected VTs.



7Ordering

Voltage Protection

Over and undervoltage protectionfunctions are provided for thePhase voltage inputs and for theAuxiliary voltage input. A derivednegative sequence overvoltage isalso available for detecting opencircuits and voltage unbalance.

User-Definable Protection Functions

The relay contains eight Flex-Elements™ that can be program-med to respond to variations in anyquantity measured by the relay.

Multiple Settings Groups

Eight separate setting groupsmay be stored in the M60’s non-volatile memory after beingprogrammed with FlexLogic™.

Multiple settings groups apply toall the protection elements.

Monitoring andMeteringAdvanced metering of current,voltage and frequency is commonacross the UR platform (see page 7).The M60 provides additionalspecific functions which include:

Trip Circuit Monitor

DC battery voltage is monitoredacross each open trip contact,triggering an alarm when thevoltage becomes virtually zero. Acurrent sensor in series with eachtrip contact provides a seriesseal-in function.

M60 GuideformSpecificationsFor the M60 guideform specifica-tions, visit: www.GEindustrial.com/Multilin/specs, fax your request to 905-201-2098 or email to [email protected].

M60 * 00 HC * F** H** M** P** U** W** For full sized horizontal mountM60 * 00 VF * F** H** M** P** For reduced sized vertical mountM60 Base unit

A RS485 + RS485 CPU C RS485 + 10BaseF (MMS/UCA2 and ModBus®/TCP) CPUD RS485 + redundant 10BaseF (MMS/UCA2 and ModBus®/TCP) CPU

00 No software optionsHC HorizontalVC Faceplate with keypad and display

H 125/250V AC/DC power supplyL 24/48V (DC only)

8A 8A Standard 4CT/4VT8B 8B Sensitive ground 4CT/4VT8C 8C Standard 8CT8D 8D Sensitive ground 8CT

XX XX XX XX No module6A 6A 6A A 6A 2 Form A (voltage w/ opt current) and 2 Form C, 8 digital inputs6B 6B 6B 6B 6B 2 Form A (voltage w/ opt current) and 4 Form C, 4 digital inputs6C 6C 6C 6C 6C 8 Form C outputs6D 6D 6D 6D 6D 16 digital inputs6E 6E 6E 6E 6E 4 Form C outputs, 8 digital inputs6F 6F 6F 6F 6F 8 Fast Form C outputs6G 6G 6G 6G 6G 4 Form A (voltage w/ opt current) outputs, 8 digital inputs6H 6H 6H 6H 6H 6 Form A (voltage w/ opt current) outputs, 4 digital inputs6K 6K 6K 6K 6K 4 Form C, 4 fast Form C6L 6L 6L 6L 6L 2 Form A (current w/ opt voltage) and 2 Form C outputs, 8 digital inputs

6M 6M 6M 6M 6M 2 Form A (current w/ opt voltage) and 4 Form C outputs, 4 digital inputs6N 6N 6N 6N 6N 4 Form A (current w/ opt voltage) outputs, 8 digital inputs6P 6P 6P 6P 6P 6 Form A (current w/ opt voltage) outputs, 4 digital inputs6R 6R 6R 6R 6R 2 Form A (no monitoring) and 2 Form C outputs, 8 digital inputs6S 6S 6S 6S 6S 2 Form A (no monitoring), 4 Form C outputs, 4 digital inputs6T 6T 6T 6T 6T 4 Form A (no monitoring) outputs, 8 digital inputs6U 6U 6U 6U 6U 6 Form A (no monitoring) outputs, 4 digital inputs5C 5C 5C 5C 5C 8 RTD inputs5E 5E 5E 5E 5E 4 DCmA inputs, 4 RTD inputs select a maximum of 45F 5F 5F 5F 5F 8 DCmA inputs

www.enerVista.comenerVista enabledenerVista enabled See page 275.

Accessories

Interactive UR Training CD-ROM available. Visitwww.GEindustrial.com/multilin/trainingcd to order.

147

7

SR Motor Management Relay®


Cost-effective motor protection, faultdiagnostics, power metering andcommunications

Drawout unit for serviceabilty

Integrated benchmark protection features

Standardized for any application

VT inputs for voltage and power protection

CT inputs for phase differential protection

Easy programming features

Diagnostic features – event recordingand oscillography

Powerful simulation feature for testingfunctionality and response

Complete local and remote user capabilities

Applications

Protection and management of mediumand large horsepower motors and drivenequipment



Voltage compensated acceleration

Over and undervoltage


A V W var VA PF Hz Wh varh demand

Torque, temperature, trending

User Interfaces

Select URPC functionality

RS232 and RS485 ports

Complete, integrated protection and

management of medium and large motors.

GE Multilin

ProtectionThe 469 is a motor managementrelay designed to protect andmanage medium and largemotors and driven equipment.The 469 offers extensive protec-tion features such as:

Motor Thermal Model

The primary protective functionof the 469 is the thermal modelwith four key elements:

Overload curves Unbalance biasing Hot/cold motor compensation Motor cooling time constants

Overload Curves

The curve can take one of threeformats: standard, custom, orvoltage dependent. For all curvestyles the 469 retains thermalmemory in a thermal capacity

used register which is updatedevery 0.1 second. The overloadpickup determines where therunning overload curve begins.

The 469 standard overload curvesare a standard shape with a multi-plier value of one to 15. The 469also allows the user to createtheir own custom curve forspecial applications.

The thermal limit curve must beprovided by the motor vendorwhen starting high inertia loadsbecause the motor accelerationtime can actually exceed the safestall time.

The voltage dependent overloadcurve feature protects motors bymonitoring voltage. During motorstarting and acceleration, the ther-mal limit curve is adjustedaccordingly. An acceleration curveis created for both minimum linevoltage and 100% line voltage.

The line voltage is monitored andthe acceleration protection curveis adjusted between the minimumand maximum line voltage.

Changes in impedance arereflected by motor terminal volt-age and line current.

Typical custom overload curve.

An example of a voltage dependent overloadcurve; in this example the user has set theminimum voltage to 80%.

469 SR Motor Management Relay®


7

TYPICAL CUSTOM CURVE

6500 HP, 13800 VOLT INDUCED DRAFT FAN MOTOR10000

1000

100

10

1.0

0.10.5 1.0 10 100 1000

806803A5.cdr

MULTIPLE OF FULL LOAD CURRENT SETPOINT

TIM

E T

O T

RIP

IN

SE

CO

ND

S

1

1

2

2

3

3

4

4

5

5

PROGRAMMED 469 CUSTOM CURVE

RUNNING SAFETIME (STATOR LIMIT)

ACCELERATION SAFETIME (ROTOR LIMIT)



806805A3.cdr

HIGH INERTIA LOAD OVERLOAD CURVES

8800 HP, 13.2 kV, REACTOR COOLANT PUMP

OVERLOAD THERMAL LIMIT

ACCELERATION INTERSECTION

@80% V

ACCELERATION THERMAL LIMIT

ACCELERATION INTERSECTION @100% V

CUSTOM CURVE

MOTOR ACCELERATIONCURVE

SAFE STALL TIME

@80% V

SAFE STALL TIME@100% V

MULTIPLES OF FULL LOAD AMPS

LOCKED ROTOR THERMAL LIMIT

TIM

E T

O T

RIP

(S

EC

ON

DS

)

1000900800700

600

500

400

300

200

100908070

60

50

40

30

20

10987

6

5

4

3

2

1

1 2 3 4 5 6 7 8

Functional Block Diagram

52

BUS

50 50G

2

27

R1TRIP

59 47 81

METERING

V,A,W,Var,VA,PF,Hz

55

50

50G 51G

51 49 37 66 46

78

87

49

38

RTD

AMBIENT AIR

3

3

STATOR RTDs

BEARING RTDs

MOTOR

14

14

LOAD

TACHOMETER

DCMA

74

86

START

RS232

RS485

RS485

806807A7.dwg

4 ANALOG INPUTS

4 ISOLATEDANALOGOUTPUTS

R6SERVICE

R5BLOCKSTART

R4ALARM

R3AUXILIARY

R2AUXILIARY

469Motor Management Relay®

Unbalance (Negative Sequence

Current) Bias

Negative sequence current,which causes rotor heating, is notaccounted for in the thermal limitcurves supplied by the motormanufacturer. The 469 measuresunbalance as the ratio of negativeto positive sequence current. Thethermal model is biased to reflectthe additional heating. Motorderating due to current unbal-ance can be selected via thesetpoint unbalance bias k factor.

Medium motor derating factor due tounbalanced voltage. Note that the k=8 curve isalmost identical to the NEMA derating curve.

Hot/Cold Motor Compensation

The 469 has a unique feature forprotecting the motor based onthe hot/cold thermal damageinformation provided by themotor manufacturer. A two-partcurve is constructed usingthree points:

RTD bias minimum: if the minimum stator RTD is belowthis point no biasing occurs (typically 40° C)

RTD bias maximum: if the maxi-mum stator RTD temperature isabove this setpoint the thermalmemory is fully biased and ther-mal capacity is forced to 100%used (this is typically at thestator insulation rating)

RTD bias center point: the centerpoint temperature and thermalcapacity used values are therated running temperature andvalue determined by the hot/coldsafe stall ratio respectively

For values between the RTD biasmaximum and minimum, thepresent thermal capacity used(created by the overload curve) iscompared to the RTD bias thermalcapacity. If the RTD bias thermalcapacity used value is higher, it isused from that point forward.


www.GEindustrial.com/Multilin

RTD Bias curve.

Motor Cooling Time Constants

The 469 thermal capacity usedvalue is reduced exponentiallywhen the motor current is belowthe overload pickup setpoint. Thisreduction simulates motor cooling.The motor cooling time constantsare programmed for both thestopped and running cases as astopped motor will normally coolslower than a running motor.Since actual motor cooling isexponential the thermal model willtrack motor heating and coolingcycles accurately and alwaysprovide optimum protection.

Exponential cooldown (hot/cold curve ratio 60%).


The 469 contains a full range ofselectively enabled, self containedprotection and control elementsas detailed in the Applicability of469 Features table.

The 469 also has the ability to learnmotor acceleration time, startingcurrent and thermal capacity.

Additional Features

Torque metering and protection,pulsed outputs, analog inputdifferential for dual motor drivesand cyclic load averaging forreciprocating motors have allbeen added to the 469 features.

Special Features

Upon request the 469 can also beprogrammed with the followingmodifications: undervoltage auto-restart and an experimental brokenrotor bar detection system.

Inputs and Outputs

Current and Voltage Inputs

The 469 has three-phase CT inputsfor phase differential protection,and a ground CT for sensitivedetection of ground faults or earthleakage. Voltage transformerinputs allow for numerous protec-tion features based on voltage andpower quantities.

RTD Inputs

The 469 has 12 field programmableRTDs that are normally used fortemperature monitoring. The 469circuitry compensates for leadresistance for leads of equal length.

Digital Inputs

The 469 has five pre-defined andfour assignable digital inputswhich can be configured to anyone of 14 different functions orturned off.

Analog Inputs

The 469 has four analog inputsthat can be used to monitor anyexternal quantity.

Output Relays

Four output relays are assignedto trip, alarm, start block andservice. Two auxiliary relays maybe programmed for extra func-tions, in addition to a forcedoutput relay feature.

1.00

0.95

0.90

0.85

0.80

0.75

0.700

PERCENT VOLTAGE UNBALANCE derafacta2.ai

DE

RA

TIN

G F

AC

TO

R

1 2 3 4 5

k=2

k=4

k=6

k=8

k=10

RT

D T

herm

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ap

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(%

)

RTD Bias Maximum

RTD Bias MinimumRTD Bias CenterPoint

100

90

80

70

60

50

40

30

20

10

0

-50 0 50 100 200 250150

Maximum Stator RTD Temperature (°C)806809A4.cdr

Th

erm

al C

ap

acit

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Time in Minutes

100

75

50

25

0

0 50 100 150 200 250

806810A3.cdr

Iavg @ 100% FLA

Iavg @ 50% FLA

149

7



7

51 Overload

86 Overload Lockout

66 Starts/Hour and Time Between Starts

Restart Block (Anti-Backspin Timer)

50 Short Circuit and Short Circuit Backup

Mechanical Jam

37 Undercurrent/Underpower

46 Current Unbalance

50G/51G Ground Fault and Ground Fault Backup

87 Differential

Acceleration

49 Stator RTD

38 Bearing RTD

Other RTD and Ambient RTD

Open RTD Alarm

Short/Low RTD

27/59 Undervoltage/Overvoltage

47 Phase Reversal

81 Frequency

Reactive Power

55/78 Power Factor

Analog Input

Demand Alarm: A kW kvar k VA

SR469 Self-Test, Service

Trip Coil Supervision

Welded Contactor

Breaker Failure

Remote Switch

14 Speed Switch and Tachometer Trip

Load Shed Switch

Pressure Switch

Vibration Switch

19 Reduced Voltage Start

48 Incomplete Sequence

Remote Start/Stop

Over Torque

PROCTLA5.AI

Applicability of 469 FeaturesAnalog Outputs

If analog outputs are connectedto a PLC, real time processcontrol is possible based on anyof the four parameters that the469 measures. If the motor isabout to trip on overload or hotrotor stator for example, the PLCcould reduce the load, preventingany downtime.

Monitoring andMeteringThe 469 provides impressivemonitoring and metering func-tions in one compact unit:

Metering

The 469 provides accurate meter-ing of:

A V W var VA PF Hz Wh varh, torque Demand: A W var VA peak Temperature (RTDs) Speed (if tachometer function is

assigned to one of the digitalinputs)

Analog inputs

Event Recording

The event recorder stores motorand system information with adate and time stamp each timean event occurs up to 40 events.

Oscillography

The 469 records up to 64 cycleswith 12 samples per cycle ofwaveform data for 10 waveforms(Ia, Ib, Ic, Ig, Diffa, Diffb, Diffc, Va,Vb, Vc) each time a trip occurs.The record is date and timestamped.

Simulation

The simulation feature tests thefunctionality and relay responseto programmed conditions with-out the need for external inputs.When placed in simulation modethe 469 suspends reading of theactual inputs and substitutes thesimulated values. Pre-trip andfault conditions can be simulated.

User Interfaces

Keypad and Display

The 469 has a keypad and 40character display for local controland programming without acomputer. Up to 20 user-selecteddefault messages can bedisplayed when inactive. In theevent of a trip, alarm, or startblock, the display will automati-cally default to the pertinentmessage and the Message LEDindicator will flash.

LED Indicators

The 469 has 22 LED indicators onthe front panel. These give a quickindication of 469 status, motorstatus, and output relay status.

Communications

The 469 is equipped with threecommunications ports. A frontpanel RS232 port allows easy localcomputer access. Two rear RS485ports provide remote communica-tions or connection to a DCS,SCADA, or PLC. The three portssupport ModBus® RTU protocol.The RS232 baud rate is fixed at9600, while the RS485 ports arevariable from 300 to 19,200 bps.All communications ports may beactive simultaneously.

Software

The relay comes with theWindows®-based 469PC softwarewhich can be used to manipulateand display 469 data. A simplepoint and click interface allowssetpoint files for each motor to be

stored, printed for verification,and downloaded to the 469 forerror-free setpoint entry. Theentire 469 manual is included asa help file for quick local access.

URPC Program

The Windows®-based URPCprogram allows the creation ofsingle line diagrams for sub-station and system monitoringschemes. Annunciator panelviewing, metering, and simplesettings changes can also beperformed using the program.The URPC program allows theuser to access multiple 469s ordifferent devices for metering inreal time. The program may beused locally through the RS232serial port or remotely throughthe other ports on the device.



7

DISPLAY40 character display, clearmessages which do notrequire deciphering

PROGRAM PORT INTERFACE RS232 for connection to acomputer, 9600 baud

DRAWOUT HANDLEwith provision for a wirelead seal to prevent unauthorized removal

Control and programmingkeys for complete accesswithout a computer

Numeric keypad

HELP KEYprovides context sensitivemessages

STATUS INDICATORS 469 status Motor status Output relays

KEYS FOR LOCAL CONTROL Reset Next (to scroll messages)

Features



7

Typical Wiring

C

A

B

A

B

C

CIRCUITBREAKER

PHASE A CT

PHASE B CT

GROUND CTDIFF.

PHASE A CT

PHASE C CT

DIFF.PHASE B CT

DIFF.PHASE C CT

MOTOR

806751AQ.dwg

AUTOMATIC CTSHORTING TERMINALSH5G5H4G4H3G3H10G10H9G9H8G8H7G7H6G6G1H2H1G2H11H12G11G12

A27A26A25A24A23A22A21A20A19A18A17A16B4B3B2D27D26D25

COMPUTERRS485

AUXILIARYRS485 ANALOG OUTPUTS

+ - COM + - COM COM

ANALOG I/O

1+ 2+ 3+ 4+ 1+ 2+ 3+ 4+SHIELD +24Vdc

ANALOG INPUTS

COM

E12F12

E11F11

E2F1E1F2E3F3E5F4E4F5E6F6E8F7E7F8E9F9

D16

D17D18D19D20D21D22D23D24C1C2C3C4

B1A1A2

A3A4A5

A6A7A8A9

A10A11A12

A13A14A15

D1D2D3D4D5D6D7D8

D9D10D11D12D13D14D15

1A/5A COM 1A/5A COM 1A/5A COM 1A/5A COMPHASE A PHASE B PHASE C

1A/5A COM 1A/5A COM 1A/5A COMPHASE A PHASE B PHASE CGROUND

50:.025 COMGROUND

DIFFERENTIAL INPUTSCURRENT INPUTSPHASE

VOLTAGE INPUTS

VcomVa Vb VcCONTROL

POWERFILT

ER

GR

OU

ND

SA

FET

YG

RO

UN

D

RTD SHIELDHOT

HOT

HOT

HOTHOT

HOTHOT

HOT

HOT

HOT

HOT

HOT

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

COMPENSATION

RTD RETURN

RTD RETURN

RTD RETURN

RTD RETURN

RTD RETURN

RTD RETURN

RTD #1

RTD #2

RTD #3

RTD #4

RTD #5

RTD #6

RTD #7

RTD #8

RTD #9

RTD #10

RTD #11

RTD #12

STARTER STATUSEMERGENCY RESTARTREMOTE RESETASSIGNABLE INPUT 1

ASSIGNABLE INPUT 2ASSIGNABLE INPUT 3ASSIGNABLE INPUT 4COMMONSWITCH +24Vdc

ACCESS

TEST

DIG

ITAL IN

PU

TS

FRONT PANEL LOCALPROGRAMMING PORT R

S23

2

R1 TRIP

R2 AUXILIARY

R3 AUXILIARY

R4 ALARM

R5 BLOCKSTART

R6 SERVICE

DRAWOUTINDICATOR

CIRCUIT BREAKER CONTACTS(52a, 52b) SHOWN FORBREAKER OPEN.

TRIP COILSUPERVISION

CONTROLPOWER

STOP52a

TRIPCOIL

ALARM ANNUNCIATOR

START 52bCLOSECOIL

SELF TEST ANNUNCIATOR

OUTPUT CONTACTSSHOWN WITH NOCONTROL POWER

RS232 INTERFACE

RELAY COMPUTER

9 W

IRE

RS

232

9 PINCONNECTOR

25 PINCONNECTOR

TXDTXDRXDRXD

SGND SGND

1234567

20

2289

12

233

4

4

5

5

6 67

7

8

8

9

PERSONALCOMPUTER RS232

469PCPROGRAM

COMMON

THERMAL CAPACITY

1 AVG

STATOR RTDs

KW

RS485PORT

COMMON-

#1+

#2+

#3+

#4+

4-20mAANALOG

INPUT

PLCor

COMPUTER

KEYSWITCHFOR SETPOINTACCESS

+24

INDUCTIVE/HALL EFFECTSENSOR FORTACHOMETER

52a

AMBIENT

PUMPCASE

PUMPBEARING

2

PUMPBEARING

1

MOTORBEARING

2

MOTORBEARING

1

MOTORWINDING

6

MOTORWINDING

1

MOTORWINDING

2

MOTORWINDING

3

MOTORWINDING

4

MOTORWINDING

5

GROUNDBUS

469POWERSUPPLY

MOTORBEARING1

MOTORBEARING2

LOADBEARING1

LOADBEARING2

SELF POWERED VIBRATION TRANSDUCERS

DO NOT INJECTVOLTAGES TO

DIGITAL INPUTS(DRY CONTACT

CONNECTIONS ONLY)

CAUTION

CHECK VOLTAGE RATINGOF THE UNIT BEFORE

APPLYING POWER.(SEE Pgs. 2-8)

CAUTION

DCS

GROUNDCOMMUNICATION PORTSONLY AT MASTER DEVICE

120Ω

1nF

120Ω

1nF

120Ω

1nF

120Ω 1nF

469Motor Management Relay®

GE Multilin



7

TYPE TESTSDielectric strength: Per IEC 255-5 and ANSI/IEEE C37.90

2.0 kV for 1 min from relays, CTs, VTs,power supply to safety ground DO NOT CONNECT FILTER GROUND TOSAFETY GROUND DURING TEST

Insulation resistance: IEC255-5 500VDC, from relays, CTs, VTs,power supply to safety ground DO NOT CONNECT FILTER GROUND TOSAFETY GROUND DURING TEST

Transients: ANSI C37.90.1 oscillatory (2.5 kV/1 MHz)ANSI C37.90.1 fast rise (5 kV/10 ns)Ontario Hydro A-28M-82IEC255-4 impulse/high frequency disturbance, Class III Level

Impulse test: IEC 255-5 0.5 J 5 kV RFI: 50 MHz/15W TransmitterEMI: C37.90.2 Electromagnetic

Interference @ 150 MHz and 450 MHz, 10 V/m

Static: IEC 801-2 static dischargeHumidity: 95% non-condensingTemperature: -50° C to +80° C ambientEnvironment: IEC 68-2-38 temperature/humidity cycleVibration: Sinusoidal vibration 8.0 g for 72 hrs

APPROVALSISO: Manufactured under an ISO9001 registered system.UL: UL approvedCSA: CSA approved

: Conforms to EN 55011/CISPR 11, EN 50082-2Conforms to IEC 947-1, 1010-1

CASEFully drawout (Automatic CT shorts)Seal provisionDust tight doorPanel or 19” rack mountIP Class: IP20-X

PACKAGINGShipping box: 12" W x 11" H x 10" D

(30.5 cm x 27.9 cm x 25.4 cm)Shipping weight: 17 lbs max (7.7 kg)

PRODUCTION TESTSThermal cycling: Operational test at ambient, reducing to

-40° C and then increasing to 60° CDielectric strength: 2.0 kV for 1 sec from relays, CTs, VTs,

power supply to safety ground DO NOT CONNECT FILTER GROUND TOSAFETY GROUND DURING TEST

ENVIRONMENTALAmbient operating temperature: -40° C to +60° CAmbient storage temperature: -40° C to +80° CHumidity: Up to 90%, non-condensingAltitude: Up to 2000 mPollution degree: 2NOTE: LCD contrast impaired below -20° C

PROTECTION AND CONTROL ELEMENTSNOTE: For technical specifications for each protection and

control element refer to the 469 instruction manual.

INPUTSVOLTAGE INPUTSVT ratio: 1.00 – 150.00:1 in steps of 0.01VT secondary: 273 VAC (full scale) Conversion range: 0.05 – 1.00 x full scaleAccuracy: ±0.5% of full scaleMax continuous: 280 VACDIGITAL INPUTSInputs: 9 opto-isolated inputsExternal switch: dry contact <800 Ω, or

open collector NPN transistor from sensor 6 mA sinking from internal 4 KΩ pullup @ 24 VDC with VCE <4 VDC

469 sensor supply: +24 VDC @ 20 mA maxRTD INPUTSRTDs: Three-wire type 100 Ω Platinum (DIN.43760)

100 Ω Nickel field120 Ω Nickel programmable10 Ω Copper

RTD sensing current: 5mAIsolation: 36 Vpk

(isolated with analog inputs and outputs)Range: -50 to +250° CAccuracy: ±2° CLead resistance: 25 Ω max per lead for Pt and Ni types

3 Ω max per lead for Cu typeNo sensor: >1000 ΩShort/low alarm: ≤-50° C ANALOG CURRENT INPUTSCurrent inputs: 0 – 1 mA, 0 – 20 mA or 4 – 20 mA (setpoint)Input impedance: 226 Ω ±10%Conversion range: 0 – 21 mAAccuracy: ±1% of full scaleType: passiveAnalog input supply: +24 VDC @ 100 mA max

COMMUNICATIONSRS232 port: 1, front panel, non-isolatedRS485 ports: 2, isolated together @ 36 VpkBaud rates: RS485: 300,1200,2400,4800,9600,19200

RS232: 9600Parity: None, odd, evenProtocol: ModBus® RTU / half duplex

POWER SUPPLYCONTROL POWEROptions: LO / HI (must be specified when ordering)Range: LO: DC: 20 – 60 VDC

AC: 20 – 48 VAC @ 48 – 62 HzHI: DC: 90 – 300 VDC

AC: 70 – 265 VAC @ 48 – 62 HzPower: 45 VA (max), 25 VA typicalVoltage loss-ride through time:

30 ms

MONITORINGTRIP COIL SUPERVISIONApplicable voltage: 20 – 300 VDC/VACTrickle current: 2 – 5 mA

METERINGPHASE CURRENT INPUTSCT primary: 1 – 5000 ACT secondary: 1 A or 5 A (must be specified with order)Burden: Less than 0.2 VA at rated loadConversion range: 0.05 – 20 x CTAccuracy: at <2 x CT: ± 0.5% of 2 x CT

at ≥2 x CT: ± 1% of 20 x CTCT withstand: 1 sec @ 80 times rated current

2 sec @ 40 times rated currentcontinuous @ 3 times rated current

PROTECTION

GROUND CURRENT INPUTSCT primary: 1 – 5000 A, 25 A for 50:0.025CT secondary: 1 A or 5 A (setpoint), 12.5 mA for 50:0.025Burden: Less than 0.2 VA at rated load for 1 A or 5 A

Less than 0.25 VA at rated load for 50:0.025Conversion range: 0.02 – 1 x CT primary AmpsAccuracy: ±0.5% of 1 x CT for 5 A

±0.5% of 5 x CT for 1 A±0.5% of CT primary for 50:0.025

CT Withstand: 1 sec @ 80 times rated current2 sec @ 40 times rated currentcontinuous @ 3 times rated current

DIFFERENTIAL PHASE CURRENT INPUTSCT primary: 1 – 5000 ACT secondary: 1 A or 5 A (setpoint)Burden: Less than 0.2 VA at rated loadConversion range: 0.02 – 1 x CTAccuracy: ±0.5% of 1 x CT for 5 A

±0.5% of 5 x CT for 1 ACT withstand: 1 sec @ 80 times rated current

2 sec @ 40 times rated currentcontinuous @ 3 times rated current

469 Technical Specifications

*Specifications subject to change without notice.

OUTPUTS

ANALOG CURRENT OUTPUTType: ActiveRange: 4–20 mA, 0–1 mA

(must be specified with order)Accuracy: ±1% of full scale4–20 mA max load: 1200 Ω0–1mA max load: 10 kΩIsolation: 36 Vpk

(isolated with RTDs and Analog Inputs)4 Assignable outputs: 25 possible assignmentsOUTPUT RELAYSConfiguration: 6 electomechanical Form CContact material: Silver alloyOperate time: 10 ms

max ratings for 100000 operations

VOLTAGE MAKE/CARRY MAKE/CARRY BREAK MAXCONTINUOUS 0.2 SEC LOAD

DC 30 VDC 10 A 30 A 10 A 300 W

Resistive 125 VDC 10 A 30 A 0.5 A 62.5 W

250 VDC 10 A 30 A 0.3 A 75 W

DC 30 VDC 10 A 30 A 5 A 150 W

Inductive 125 VDC 10 A 30 A 0.25 A 31.3 W

L/R = 40 ms 250 VDC 10 A 30 A 0.15 A 37.5 W

AC 120 VAC 10 A 30 A 10 A 2770 VA

Resistive 250 VAC 10 A 30 A 10 A 2770 VA

AC 120 VAC 10 A 30 A 4 A 480 VA

Inductive 250 VAC 10 A 30 A 3 A 750 VAPF = 0.4



7

469 GuideformSpecificationsFor an electronic version of the 469guideform specifications, pleasevisit: www.GEindustrial.com/Multilin/specs, fax your request to 905-201-2098 or email to [email protected].

469 * * *469 Basic unit

P1 1 A phase CT secondariesP5 5 A phase CT secondaries

LO DC: 24 – 60 V; AC: 20 – 48 V @ 48 – 62 Hz control powerHI DC: 90 – 300 V; AC: 70 – 265 V @ 48 – 62 Hz control power

A1 0 – 1 mA analog outputsA20 4 – 20 mA analog outputs

Accessories

469PC Program: Provided free with each relayDEMO: Metal carry case in which 469 unit may be mounted19-1 PANEL: Single cutout 19" panel19-2 PANEL: Dual cutout 19" panelSCI MODULE: RS232 to RS485 converter box designed for

harsh industrial environmentsPhase CT: 50, 75, 100, 150, 200, 250, 300, 350, 400, 500, 600, 750, 1000HGF3, HGF5, HGF8: For sensitive ground detection on high resistance

grounded systems1 3/8" Collar: For shallow switchgear, reduces the depth of the relay

by 1 3/8".3" Collar: For shallow switchgear, reduces the depth of the relay by 3".

Dual mounting availablewith the 19-2 Panel.

IP54 Collar

NOTE: For dimensions see SR Family brochure.

Ordering

808785E3.cdr

7 8 9

4 5 6

1 2 3

. 0

7 8 9

4 5 6

1 2 3

. 0


Order online –Order online –save timesave time


155

7

Motor Management Relay®


Digital technology

Adapts to each application by “learning”individual motor parameters

Uses values (motor inrush current,cooling rates, and acceleration time) toimprove protection

FlexCurve™ custom overload curve

15 standard curves

Monitors up to 12 RTDs (softwareselectable)

Optional remote RTD module and BSD(back-spin detection)

Flash memory for field upgrades

Simulation mode for field testing

Trip/Alarm/Aux1/Aux2 relay outputs

Applications

Protection and monitoring for three-phase motors and their associatedmechanical systems


Protection

Phase short circuit, ground faultovercurrent

Locked rotor/mechanical jam, single-phase/unbalance


Load, current, unbalance, voltage,frequency, power

Fault diagnosis

User Interfaces

Select URPC functionality

RS232 and three independent RS485 ports

Complete, optimum motor

protection for maximum rated output.

GE Multilin

ProtectionThe 369 is a digital relay thatprovides protection and monitor-ing for three-phase motors andtheir associated mechanicalsystems. The 369 offers optimumprotection including:

Start and Running

The motor is protected underboth acceleration and runningconditions. An alarm or trip canoccur based on the accelerationtime, the number of starts perhour, the time between starts, ormotor over-load conditions.

Overload Curves

One of fifteen standard overloadcurves may be programmed basedon motor manufacturer specifica-tions. Alternatively the user mayprogram in a custom curve usingthe built-in FlexCurve™ function.The motor’s service factor value isentered as the overload pickuplevel.

Fifteen standard overload curves.

FlexCurve™

A smooth custom overload curveis created within a selected range

using FlexCurve™. This curve canbe used to protect motors withdifferent rotor damage and statordamage curves, thus allowingtotal motor design capacity withcomplete protection.

Typical FlexCurveTM.

Unbalance

Unbalanced three-phase supplyvoltages are a major cause ofinduction motor thermal damage.Induced currents in the rotor canbe high, whereas stator currentincreases can be much lower. Toprevent rotor damage, unbalanceprotection must be used. Unbalancealarm, trip, and single-phase trip-ping is provided.

369 Motor Management Relay®


7

14 Speed switch27/59 Undervoltage/Overvoltage

37 Undercurrent/Underpower38 Bearing RTD46 Current Unbalance47 Phase Reversal49 Stator RTD50 Short circuit and short circuit

backup50G/51G Ground overcurrent and

ground overcurrent backup51 Overload55 Power factor66 Starts/hour and time between

starts81 Frequency86 Overload lockout87 Differential

DEVICE PROTECTION

50G52

4 ISOLATEDANALOGOUTPUTS

METERINGV, W, Var, VA, PF, Hz

METERINGA, Celsius

369Motor Management

Relay®

CONTROL

AUXILIARYRELAY

ALARMRELAY

SERVICE

BLOCKSTART

Comm. toRTD module

REMOTE RTDMODULE

(12 RTD INPUTS)

(Fiber Optic)

(Option F)

51 37

50

BACKUP

OPTIONAL METERING (M)

BUS

VV

55

50

27 47 59

52a/b

TRIP

14

87

49 38

86

74

14

87

SPEED DEVICE

3

DIFFERENTIAL

INPUTS

RTDs

AMBIENT AIR

BREAKEROR FUSED

CONTACTOR

RS232

START

RS485

RS485

RS485

STATOR

BEARING

AMBIENT

840701B2.CDR

RELAY CONTACTS

AMBIENT

STATOR

BEARING

50G51G

4666

MOTORLOAD

OPTIONAL RTD ( R )12 RTD INPUTS

OPTION ( B )BACKSPIN

DETECTION


15CURVE

1297

4

3

2

1

10

819765A8.CDR

PHASE CURRENT(multiples of full load)

1Full Load

Setpoint

0.1

10,000

1,000

100

TR

IPT

IME

(sec

on

ds)

10

1

6500 HP, 13800 Volt INDUCED DRAFT FAN MOTOR

10000

1000

100

10

1.0

0.1

0.5

0.6

0.7

0.8

0.9 1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100

200

300

400

500

600

700

800

900

1000

MULTIPLE OF FULL LOAD CURRENT SETPOINT

TIM

E T

O T

RIP

IN

SE

CO

ND

S

369flexa2.ai

1

2

3

4

PROGRAMMED 369 CUSTOM CURVE

RUNNING SAFETIME (ROTOR LIMITED)

ACCELERATION SAFETIME (ROTOR LIMITED)



2

3

4

5

5

1

Undercurrent (Minimum Load)

The undercurrent function is usedto detect a decrease in motorcurrent caused by a decrease inmotor load. This is especiallyuseful for indication of such condi-tions as loss of suction for pumps,loss of airflow for fans, or abroken belt for conveyors. A sepa-rate undercurrent alarm level maybe set to provide early warning.

Ground Overcurrent

For ground overcurrent protection,all three of the motor conductorsmust pass through a separateground CT. CTs may be selected todetect either high-impedance zerosequence ground or residualground currents. The ground faulttrip can be instantaneous or timedelayed by up to 255 seconds. Alow level of ground fault pickup isdesirable to protect as much of thestator winding as possible. A50:0.025 A CT, 1 A or 5 A CT maybe used for ground fault detection.

Rapid Trip/Mechanical Jam

Quick motor shut down canreduce damage to gears, bear-ings, and other mechanical partsassociated with the drive combi-nation. A current surge will causethe relay assigned to the rapidtrip/mechanical jam function tobecome active. The user may setthe pickup level, trip time delayand an alarm for early warning.

Stator Overtemperature (Option R)

Optional stator winding overtem-perature protection can monitorup to 12 optional stator RTDs. Ifless than 12 RTDs are used forstator monitoring, the remainingRTDs may be used for any othertemperature monitoring functiondesired.

Temperature Monitor (Option R)

Twelve optional RTD inputs areavailable. Any RTD inputs notused for stator RTD protectioncan be used for other tempera-ture monitoring functions.Separate alarm and trip level

temperatures can be selected foreach RTD. Alternatively, a remoteRRTD module can also be usedwith the 369 for temperaturemonitoring.

Back-Spin Detection (Option B)

The BSD option is used to detectflow reversal of a pump motorwhen check valves are not func-tioning or are non-existent. Oncethe pump has stopped rotating, theBSD will allow the pump to safelyrestart, minimizing downtime andpreventing motor damage.

The BSD uses sensitive circuits todetect the voltage produced bythe back-spinning motor. Digitalsignal processing techniquesdetermine the direction of rota-tion and predict the pump stoptime.

An underpower element trips themotor in case of loss of fluid tothe pump (which also cools themotor). The metering option (M)is included in the BSD (B) option.

Thermal Modeling

The thermal model calculates themotor I2t value, based on actualmotor load current, in terms ofthermal capacity used.

RTD Hot Motor Compensation

(Option R)

Optional hot motor compensationallows the RTDs measuring thestator temperature to act as a ther-mal capacity check by confirmingthe value calculated by the ther-mal model. The thermal capacityused is updated to reflect thehigher of the two values. Thisaccounts for both heat due to I2tand motor heating due to loss ofcooling or extreme ambienttemperatures. Additionally, the369 allows the user to match themotor thermal characteristics witha dual slope RTD bias curve. Thetwo part curve allows for easyintegration of hot and cold motordamage curves to the RTD biasfeature.

RTD bias curve sample.

Monitoring andMeteringThe 369 offers a choice of optionalmonitoring and metering functionsincluding:

Metering (Option M)

The 369 metering option providesmonitoring of quantities such asPF, kW, frequency, etc. Severalprotection functions can beperformed based on theseparameters, including:

Voltage Watts ( kW, MW ) Vars ( kVar, MVar) Power factor Frequency MWh

Analog Outputs (Option M)

Three optional isolated analogoutputs are provided (in additionto the one analog output availablein the base model) that can befield selected as 0 to 1, 0 to 20 or

4 to 20 mA outputs.Each analog outputis programmableto specify a certainparameter.

Fault Diagnosis

After a trip, the cause of the trip,measured current values, unbal-ance, and temperature present atthe time of trip are displayed.This information helps facilitatetroubleshooting. An event recordof the last 250 trips helps identifypersistent problems.



7

925146A3.cdr

THERMAL CAPACITYUSED %

40°C 80°C0°C 120°C 160°C 200°C

MAXIMUMSTATORTEMPERATURE

155°CRTD BIAS

MAX. VALUE

110°CRTD BIAS

CENTER VALUERTD BIAS

MIN. VALUE

RTD BIASCENTER T.C.

FACTORY PRESET CURVE:Min.= 40°C, Center = 110°C & Max.= 155°C

Center Thermal Capacity = 15%968570A6.dwg

0%

15%

25%

50%

75%

100%

THERMALCAPACITY

USED

Alarm functions include immedi-ate overload warning, unbalance,undercurrent, and internal self-check fault. An alarm can allowcorrective action to be takenbefore a trip occurs.

Testing

A simulation mode enables simu-lated currents to be used withoutthe need for a relay test set. Thisis ideal for verification of settingsand training.The simulation mode can be run from thefront panel display or a PC.

User InterfacesA variety of communication inter-faces are available in the 369:

Communications

A front RS232 port is provided fordownloading setpoints and inter-rogating the relay using theWindows®-based 369PC program.Three independent rear RS485ports offer the customer flexibili-ty and performance for theircommunication network. The 369can communicate at baud ratesup to 19,200 bps using the industrystandard ModBus® RTU protocol.Both fiber optic (option F) andprofibus interface (option P) portsare also available.

Future Expansion

An open architecture protocol andhardware interface allow differentGE Multilin relays or devices byother manufacturers to be mixedon the same communication link.The 369 can be integrated into aplant control system, or operatealone. Internal flash memoryallows easy upgrades by simplyloading new program code viathe front serial port.

Software

The relay comes with theWindows®-based 369PC softwareto help manipulate and display369 data. A simple interfaceallows setpoint files to be created,stored and downloaded to the369 for error free setpoint entry.The 369PC program can also beused to generate graphical trendreports.

Maximize production throughput and improvepreventative maintenance with trend analysis.

Read the trip record and pretrip values forquick fault diagnosis.

URPC Program

The Windows®-based URPCprogram allows the user to createsingle line diagrams for substationand system monitoring schemes.Additionally, annunciator panelviewing, metering, and simplechanges can also be performedusing the program. With the URPCprogram the user can accessmultiple 369s or different devicesfor metering in real time.

The URPC program may be runon a PC with the Windows®

95/98/NT operating systems. Theprogram may be used locallythrough the RS232 serial port orremotely through the other portson the device.

Display and Keypad

The 40 character display andkeypad provide convenient local

communications and control.Setpoints can be manipulatedusing the keypad and display. Tohelp prevent tampering, a setpointaccess input must be shortedbefore changes can be made. Thedisplay module can be separatedfrom the relay and mountedremotely.

Self explanatory messages makeprogramming and monitoring easy.

LED Indicators

Ten LED indicators on the frontpanel provide quick visual indica-tion of status.

Digital Inputs

The 369 has six dry contact inputs. Setpoint access: these terminals

must be shorted together in orderto locally store new setpoints

Emergency restart: momentarilyshorting these terminals togetherwhen the motor is stopped willcause the thermal memory todischarge to 0% used, allowingfor an immediate restart after an overload trip; this maycompromise the thermal protec-tion functions of the 369, makingit possible for the motor to bedamaged

Reset: this input can be used forremote or automatic reset

Speed switch: this connectionallows the 369 to utilize an exter-nal speed device for locked rotorprotection

Differential relay: an externaldifferential relay can be connectedso that a contact closure on thisinput will cause an immediatedifferential trip

Spare input: this can be set toprovide an alarm or trip after aprogrammable time delay whena contact closure is sensed onthese terminals

All digital inputs other than set-point access are fully pro-grammable as general switchinputs.



7

PHASE CT PRIMARY:586 A

LEARNED ACCELERATIONTIME = 0.05



7

840702BF.ai

GE Power Management

Tel: (905) 294-6222

TECHNICAL SUPPORT

Fax: (905) 201-2098Internet: http://www.ge.com/edc/pm

TRIP

ALARM

AUX 1

AUX 2

SERVICE

BSD

RRTD

METERING

COM 1

COM 2

ACTUALVALUES

RESET CLEAR ENTER

SETPOINTS HELP

PAGE

PAGE

LINE

LINE

VALUE

VALUE

3612

48

111

TRIP ALARMOUTPUT RELAYS

AUX 1 AUX 2CONTROL POWER

SP

AR

ED

IGIT

AL

INP

UT

S (

DR

Y C

ON

TA

CT

S O

NLY

)D

IFF.

SP

. SW

.A

CC

ES

SE

M. R

ST

EX

. RE

SC

HA

NN

EL

1

SH

LDS

HLD

SH

LDS

HLD

PHASE A

GROUND GROUND GROUND GROUND PHASE A PHASE A PHASE B PHASE B PHASE C PHASE C

PHASE A PHASE A PHASE B PHASE B PHASE B PHASE C PHASE C PHASE CBSD BSD

5A CT

50:0.025 1A CT 5A CT CT COM VT VT N VT VT N VT VT N

1A CT CT COM 5A CT 1A CT CT COM 5A CT 1A CT CT COMV V N

90

101 102 103 104 105 106 107 108 109 110

91 92 93 94 95 96 97 98 99 100

CO

M4

32

1

CH

AN

NE

L 2

CH

AN

NE

L 3

AN

ALO

G O

UT

PU

TS

5152

5354

5556

5758

5960

6162

7172

7374

7576

7778

7980

8182

8384

8586

NC NC NC NCCOM COM COM COMNO NO NO NO SGL2/N(-)L(+)112 113 114 115 116 117 118 119 120 121 122 123 124 125 126

2447

23

RT

D12

RT

D9

RT

D8

RT

D7

RT

D12

PROFIBUS

FIBER OPTIC PORTS

T XRX

RT

D3

RT

D2

RT

D1

RT

D11

RT

D11

RT

D10

RT

D10

4622

4521

4420

4319

4218

4117

4016

3915

3814

3713

3511

3410

339

328

317

306

295

284

273

262

251

CE

INPUT POWER:

MODEL: 369-HI-R-B-F-P

MAXIMUM CONTACT RATING250 VAC 10A RESISTIVE1/4 HP 125 VAC 1/2 HP 250 VAC

SERIAL No: M53B99000026

FIRMWARE: 53A700C0.000

POLLUTION DEGREE: 2 IP CODE: XO

50-300 VDC40-265 VAC578mA MAX.50/60Hz or DC

MOD:

12 RTDs:

BACKSPIN

FIBER OPTIC PORT

PROFIBUS

OPTIONS

INSULATIVE VOLTAGE: 2

NONEOVERVOLTAGE CATAGORY: 1

369 Motor Management Relay ®

BACKSPIN DETECTION ( B )

3 x RS485 Ports3 Independent modbuschannels

1 ANALOG OUTPUT (Base Unit)

3 ANALOG OUTPUTS (M, B)

VOLTAGE INPUTS ( M )0-240 V wye or delta VTconnections.

GROUND CT INPUTS5 A, 1 A and 50:0.025 taps

Customer AccessibleFuse

COMPUTER INTERFACERS232 comm port for con-necting to a PC. Use fordownloading setpoints,monitoring, data collection &printing reports.

CURRENT INPUTS3 Phase and ground CT inputs5 A, 1 A taps

FIBER OPTIC DATA LINK ( F )For harsh enviroments and orhook up to RRTD

PROFIBUS PORT ( P )

DIGITAL INPUTS

STATUS INDICATORS4 LEDs indicate when an output is activated. When an LED is lit, the cause of the output relay operation will be shown on the display.SERVICE LED indicates thata self-diagnostic test failed.

DISPLAY40 Character alpha-numericLCD display for viewing actual values, causesof alarms and trips, and programming setpoints

STATUS INDICATORSLEDs indicate if motor isbackspinning, RRTD isconnected, metering isenabled and com status.

Rugged, corrosion andflame retardant case.

KEYPADUsed to select the displayof actual values, causes of alarms, causes of trips, faultdiagnosis, and to programsetpoints

CONTROL POWERHI: 50-300 VDC / 40-265 VACLO: 20-60 VDC / 20-48 VAC

4 OUTPUT RELAYSProgrammable alarm and tripconditions activated byprogrammable setpoints, switch input, remote communication control

12 RTD INPUTS ( R )Field selectable type

0-575V RMS

HELP KEYHelp key can be pressed atany time to provide additionalinformation

Features369 Front View

369 Rear View

159

7

155

7

369Motor ManagementRelay

GROUND BUS

840700BD.CDR

DB-9(front)

STATORWINDING 1

METER

load

PLC

SCADA

RS485PF +Watts

cpm-

ShieldShield

-

STATORWINDING 2

STATORWINDING 3

STATORWINDING 4

STATORWINDING 5

STATORWINDING 6

MOTORBEARING 1

MOTORBEARING 2

PUMPBEARING 1

PUMPBEARING 2

PUMPCASE

AMBIENT

369

TXDTXDRXDRXD

SGND SGND

COMPUTER

25 PINCONNECTOR

9 PINCONNECTOR

(5 Amp CT)

TwistedPair

CONTROLPOWER

380VAC/125VDC

NOTERELAY CONTACTS SHOWN

WITHCONTROL POWER REMOVED

RTD1

STCONNECTION

50/125 uM FIBER62.5/125 uM FIBER100/140 uM FIBER

PC

RTD12

A

B

C

L

N

C(B)

A

B(C)

HGF-CT

MOTOR

VA VN VB VN VC VN

VOLTAGE INPUTS

105 108106 109107 110

CURRENT INPUTSWITH METERING OPTION (M)

Neut/Gnd Back Spin

Option (B)

COM 50:0.025A5A VN1A

102 104 103 101OPTIONAL

9091

CHANNEL 1

OP

TIO

N ( R

)

CHANNEL 2 CHANNEL 3

REMOTERTD

MODULE

RS485 RS485 RS485 FIBER

71 74 7773 76 7972 75 78

80

82

84

85

81

83

4

12

16

20

24

28

32

36

40

44

48

8

3

11

15

19

23

27

31

35

39

43

47

7

2

10

14

18

22

26

30

34

38

42

46

6

1

9

13

17

21

25

29

33

37

41

45

5

Com-

Com

Com

Com

Com

Com

Com

Com

Com

Com

Com

Com

Com

shld.

shld.

shld.shld.

shld.

shld.

shld.

shld.

shld.

shld.

shld.

shld.

shld.

5

9

4 3 2 1

8 7 6

shld.

SHLD SHLD SHLD Tx Rx

1

2

3

4

AN

ALO

GO

UT

PU

TS

OP

TIO

N(M

,B)

RTD1

RTD3

RTD4

RTD5

RTD6

RTD7

RTD8

RTD9

RTD10

RTD11

RTD12

RTD2

SPARE

DIFFERENTIALRELAY

RTDALARM

SELF TESTALARM

ALARM

KEYSWITCHOR JUMPER

SPEED SWITCH

DIFFERENTIALRELAY

SPEEDSWITCH

ACCESSSWITCH

EMERGENCYRESTART

EXTERNALRESET

DIG

ITA

L IN

PU

TS

51

59

61

52

60

62

53

54

55

56

57

58

111

126

125

124

123

112

113

114

115

116

117

118

119

120

121

122

OU

TP

UT

RE

LAY

S

TRIP

ALARM

AUX. 1

AUX. 2

FILTER GROUNDLINE +

NEUTRAL -SAFETY GROUNDC

ON

TR

OL

PO

WE

R

CR

369 PCPROGRAM

87

14

OPTION (F)

11 822 3

66 6

44 20

88 5

33 2

77 4

55 7

99 22

R

ProfibusOption (P)

GE Multilin

5A 5A1A

Phase A Phase CPhase B

COM 1A COM 5A COM1A

92 93 94 95 96 97 98 99 100



7

Typical Wiring



161

7


POWER SUPPLY

CONTROL POWERInput: LO: 20 – 60 VDC

20 – 48 VAC: 50 / 60 HzHI: 50 – 300 VDC

40 – 265 VAC: 50 / 60 HzPower: Nominal: 20 VA

Maximum: 65 VAHoldup: Non-failsafe trip: 200 ms

Failsafe trip: 100 ms

MONITORING

WAVEFORM CAPTURELength: 3 buffers containing 16 cycles of all current and

voltage channelsTrigger position: 1 – 100% pre-trip to post-tripTrigger: trip, manually via communications or digital input

METERING

PHASE CURRENT INPUTSConversion: True rms, sample time 1.04 msCT input: 1 A and 5 A secondaryRange: 0.05 to 20 x phase CT primary ampsFull scale: 20 x phase CT primary amps Frequency: 20 – 300 HzAccuracy: @ ≤ 2 x CT 0.5% of 2 x CT

@ > 2 x CT 1.0% of 20 x CTGROUND CURRENT INPUT (GF CT)CT input (rated): 1 A / 5 A secondary and 50:0.025CT primary: 1 – 5000 A (1 A / 5 A)Range: 0.1 to 1.0 x CT primary (1 A / 5 A)

0.05 to 16.0 A (50:0.025)Full scale: 1.0 x CT primary (1 A / 5 A)Frequency: 20 – 300 HzConversion: True rms 1.04 ms / sampleAccuracy: ±1% of full scale (1 A / 5 A)

±0.07 A @ 1 A (50:0.025)±0.20 A @ 16 A (50:0.025)

PHASE/LINE VOLTAGE INPUT(VT)(Option M) VT ratio: 1.00 – 240:1 in steps of 0.01VT secondary: 240 VAC (full scale)Range: 0.05 – 1.00 x full scaleFrequency: 20 – 300 HzConversion: True rms 1.04 ms/sampleAccuracy: ±1.0% of full scaleBurden: >200 kΩMax continuous: 280 VACPOWER METERING (Option M):

ACCURACYPARAMETER (FULL SCALE) RESOLUTION RANGEkW ±2% 1 kW ±32,000kvar ±2% 1 kvar ±32,000kVA ±2% 1 kVA 0 – 50,000mWh ±2% 1 MWh 0 – 65,535±kvarh ±2% 1 kvarh 0 – 65,535Power Factor ±1% 0.01 ±0.00 – 1.00Frequency ±0.02 Hz 0.01 Hz 20.00 – 300.00kW Demand ±2% 1 kW 0 – 50,000kvar Demand ±2% 1 kvar 0 – 50,000kVA Demand ±2% 1 kVA 0 – 50,000Amp Demand ±2% 1 A 0 – 65,535

ENVIRONMENTAL

Humidity: 95% non-condensingTemperature: -40° C to + 60° C ambientNOTE: LCD contrast impaired below -20° C

PACKAGING

Shipping box: 12" x 12" x 8" (L x H x D)305 mm x 305 mm x 203 mm (L x H x D)

Ship weight: 10 lbs/4.5 kg

APPROVALS

ISO: Manufactured under an ISO9001 registered systemUL: Recognized under E83849CSA: Approved under LR41286-59

: IEC 947-1, IEC 1010-1

COMMUNICATIONS

RS232: Front port (up to 19,200 bps, ModBus® RTU)RS485: 3 rear ports (up to 19,200 bps, 36 V isolation,

ModBus® RTU)Fiber Optic: Option F rear port (up to 19.2 kbps, ModBus® RTU)Profibus: Option P rear port (up to 12 Mbps, Profibus DP)

TYPE TESTS

Dielectric: 2.0 kV for 1 min to relays, CTs, Insulation: IEC 255-5 500 VDCTransients: ANSI C37.90.1 oscillatory 2.5 kV/1 MHz

ANSI C37.90.1 fast rise 5 kV/10 nsOntario Hydro A-28M-82IEC 255-4 impulse/high Frequency disturbance Class III Level

Impulse test: IEC 255-5 0.5 Joule 5 kVRFI: 50 MHz/15 W transmitterEMI: C37.90.2 electromagnetic interference

@ 150 MHz and 450 MHz, 10 V/mStatic: IEC 801-2 static dischargeEnvironment: IEC 68-2-38 temperature/humidity cycleDust/moisture: IP50

PROTECTION

OVERLOAD CURVES TRIP TIME Curves: 15 curves, fixed shape/prog. FlexCurve™Overload pickup: 1.0 – 1.25 x FLAAccuracy: Pickup: ±1% of full scale

Time: ±100 ms or ±2% of total trip timeSHORT CIRCUIT AND GROUND TRIPGround trip level: 0.25 – 25.00 A (50:0.025 CT)

10 – 100% (1 A/5 A CT)S/C trip level: 2 – 20 x CT, OFFIntentional delay: INST. or 10 ms to 2000 ms (S/C) (GROUND) Instantaneous: 45 msSTART PROTECTIONThermal: Separate start and run protectionActivation: Inrush current increases 5% to

>101% FLC in 1 secDeactivation: Current drops <Overload Pickup Level

motor running if current >5% FLCLocked rotor: 2 – 10 x FLCStall time: 1.0 – 600.0 secTHERMAL MODELINGThermal capacity: Separate stop/run, exponential cool downCool rate: Stop: cool time constant 1 – 500 min

Run: cool time constant 1 – 500 min Hot/cold: 50 – 100%, hot after 15 min runningLockout: 1 – 500 min programmable

±20% power on or offUNBALANCERange: 4 – 30%Accuracy: ±2%Delay: 0 – 255 sec

Im - IavCalculation: Iav ≥ IFLC UB% = I I x 100%Iav

Im - IavIav < IFLC UB% = I I x 100%IFLC

where: Iav = average phase currentIm = phase with maximum deviation from IavIFLC = motor full load current setting

OUTPUTS

ANALOG OUTPUT (OPTION M)PROGRAMMABLE

OUTPUT 0 – 1 mA 0 – 20 mA 4 – 20 mAMAX LOAD 2400 Ω 600 Ω 600 ΩMAX OUTPUT 1.01 mA 20.2 mA 20.2 mA

Accuracy: ±1% of full scaleIsolation: 50 V isolated active source

OUTPUT RELAYS

RESISTIVE LOAD INDUCTIVE LOAD(PF = 1) (PF = 0.4)(L/R – 7ms)

Rated Load 8 A @ 250 VAC 3.5 @ 250 VAC3.5 A @ 30 VDC 3.5 A @ 30 VDC

Carry Current 8 AMax Switching 2000 VA 875 VA

Capacity 240 W 170 WMax Switching V 380 VAC/125 VDCMax Switching I 8 AOperate time <10 ms (5 ms typical)Contact Material silver alloy

INPUTS

RTDS INPUTS (OPTION R):Wire type: 3-wireSensor type: 100 Ω platinum (DIN 43760)

100 Ω nickel, 120 Ω nickel10 Ω Copper

RTD sensing current: 3 mARange: -40 to 200° C or -40 to 424° FLead resistance: 25 Ω max for Pt and Ni type

3 Ω max for Cu typeIsolation: 36 VpkBSD INPUTS (OPTION B)Frequency: 2 – 300 HzDynamic BSD range: 30 mV – 575 V rmsAccuracy: ±0.02 HzDIGITAL / SWITCH INPUTSInputs: 6 optically isolatedInput type: Dry contact (<800 Ω)Function: ProgrammableCT INPUTS

PHASE CT BURDENPHASE INPUT BURDEN

CT (A) VA (Ω)1 0.03 0.03

1A 5 0.64 0.0320 11.7 0.035 0.07 0.003

5A 25 1.71 0.003100 31 0.003

GROUND CT BURDENGROUND INPUT BURDEN

CT (A) VA (Ω)1 0.04 0.036

1 A 5 0.78 0.03120 6.79 0.0175 0.07 0.003

5 A 25 1.72 0.003100 25 0.003

0.025 0.24 38450:0.025 0.1 2.61 261

0.5 37.5 150

GROUND/PHASE CT CURRENT WITHSTANDWITHSTAND TIMECT

1 s 2 s continuous1 A 100 x CT 40 x CT 3 x CT5 A 100 x CT 40 x CT 3 x CT

50:0.025 10 A 5 A 150 mA




7

ModBus® is a registered trademark of ModiconWindows® is a trademark of Microsoft® Motor Management Relay is a registeredtrademark of GE Multilin

369 * * * * *369 Basic unit (no RTD)

HI 50 – 300 VDC / 40 – 265 VAC Control PowerLO 20 – 60 VDC / 20 – 48 VAC Control Power

R Optional 12 RTD inputs (built-in)0 No optional RTD inputs

M Optional metering packageB Optional backspin detection

(includes metering)0 No optional metering package

or backspin detectionF Optional fiber optic port0 No optional fiber optic port

P Optional Profibus protocol interfaceE Optional ModBus® TCP over Ethernet interface0 No optional Profibus protocol interface

Note: The 369 is available in a non-drawout version only.

Accessories

369PC Program Setup and monitoring software provided free with each relay.RRTD Remote RTD Module. Connects to the 369 via a fiber optic or RS485

connection. Allows remote metering and programming for up to 12 RTDs.F485 Converts communications between RS232 and RS485 / fiber optic.

Used to interface a computer to the relay.CT 50, 75, 100, 150, 200, 300, 350, 400, 500, 600, 750, 1000 (1 A or 5 A

secondaries)HGF Ground CTs used for sensitive earth fault detection on high resistance

grounded systems.515 Blocking and test module. Provides effective trip blocking and relay isolation.DEMO Metal carry case in which 369 is mounted.

Ordering

Dimensions


6.125"(156) 6.125"

(156)

0.218" (6) DIA(4 PLACES)

6.85"(174)

6.65"(169)

MOUNTINGSURFACE

Inches(mm)

4.23"(107)

8.07"(205)

10.2

4"(2

60)

11.6

7"(2

96)

10.8

75"

(276

)

10.8

75"

(276

)

10.4

5"(2

65)

FRONT VIEW SIDE VIEW REAR VIEW840703B6.DWG

369 MOTOR MANAGEMENT RELAY


840715B7.dwg

(4 PLACES)0.218" (6) DIA.

10.875"(276)

6.30"(160)

0.80"(20)

6.125"(156)

0.75"(19)

1.77"(45)

(4 PLACES)0.218" (6) DIA.

10.875"(276)

6.30"(160)

0.80"(20)

6.125"(156)

0.75"(19)

1.77"(45)

4.23"(107)

6.12"(156)

8.07"(205)

1.35"(34)

Inches(mm)

6.65"(169) MOUNTING

SURFACE

MOUNTINGSURFACE

10.2

4"(2

60)

10.8

75"

(276

)

11.6

7"(2

96)

FRONT MOUNTING

REAR MOUNTING

I/O HOUSING

DISPLAY MODULE

SIDE VIEW

SIDE VIEWFRONT VIEW

REAR VIEW

369 SPLIT MOUNTING



163

7

Remote RTD Module


Additional RTD temperature metering forGE Multilin relays

Designed for close mounting to motor(reduces wiring)

Operates as stand-alone temperaturemonitoring transducer

Provides overtemperature protection

Monitors up to 12 RTDs for polling

Individually field programmable RTDinputs

AC/DC universal power supply

Applications

As additional RTD inputs and/or forremote RTD metering

Protection

Overtemperature


Temperature

User Interfaces

Fiber optic (F) plus three isolated RS485ports

RTD PC program

Remote temperature monitoring of

RTDs for metering and protection.

GE Multilin


RRTD Remote RTD Module

164

7

ProtectionThe Remote RTD Module providesadditional RTD temperature meter-ing capabilities for GE Multilinrelays such as the 369. The modulecan also operate as a stand-alonetemperature monitoring transducerand can provide overtemperatureprotection (I/O).

Monitoring andMeteringThe RRTD module is a ‘black box’which monitors up to 12 RTDsand can be polled for this infor-mation. All setpoint programmingfor the RRTD module is accom-plished via the 369 over the serialcommunication link or by otherdevices using ModBus® RTU overa serial link. Communicationsconnections are over a shieldedtwisted pair RS485 connection orvia the fiber optic port.

FeaturesThe RRTD module has beendesigned to be mounted close tothe motor to facilitate reducedlength of RTD wiring. A 369Motor Management Relay canthen monitor the RTDs from aremote location and use thistemperature information forprotection/metering purposes.

Inputs/Outputs

Three isolated RS485 ports Fiber optic port (F) ModBus® RTU to 19,200 baud Profibus port (P) RTD PC program 12 three-wire shielded RTD inputs User configurable RTD type AC/DC universal power supply

RRTD GuideformSpecificationsFor an electronic version of the RRTDguideform specifications, pleasevisit: www.GEindustrial.com/Multilin/specs, fax your request to 905-201-2098 or email to [email protected].

POWER SUPPLY

Input: LO: 20 – 60 VDC20 – 48 VAC:50/60 Hz

HI: 50 – 300 VDC40 – 265 VAC:50/60 Hz

Power: Nominal: 20 VAMaximum: 65 VA

Holdup: Non-failsafe trip: 200 msFailsafe trip: 100 ms

TYPE TESTS

Dielectric: 2.0 kV for 1 min to relays, power supplyInsulation: IEC 255-5 500 VDCTransients: ANSI C37.90.1 Oscillatory 2.5 kV/1 MHz

ANSI C37.90.1 fast rise 5 kV/10 nsOntario Hydro A-28M-82IEC 255-4 Impulse/High Frequency disturbance Class III Level

Impulse test: IEC 255-5 0.5 Joule 5 kVRFI: 50 MHz/15 W transmitterEMI: C37.90.2 electromagnetic interference

@ 150 MHz and 450 MHz, 10 V/mStatic: IEC 801-2 static dischargeEnvironment: IEC 68-2-38

temperature/humidity cycleDust/moisture: IP20X

ENVIRONMENT

Humidity: 95% non-condensingTemperature: -40° C to + 60° C ambient

PACKAGING

Shipping box: 12"x 12" x 8" (L x H x D)305 mm x 305 mm x 203 mm (L x H x D)

Ship weight: 10 lbs (4.5 kg)

APPROVALS

ISO: Manufactured to an ISO9001 registered programUL: Recognized file no. E83849CSA: Recognized file no. LR41286-59

: IEC947-1, IEC1010-1Class I Division II Rating: Pending

COMMUNICATIONS

Type: 3 RS485 2 wire, half duplex, isolated.1 optional fiber optic port

Baud rate: 1,200 – 19,200Protocol: ModBus® RTUFunctions: Read/write setpoints

read actual valuesexecute commands

INPUTS

RTDSInputs: 12 RTDs, stator/bearing programmableType: 100 Pt (DIN 43760), 100 Ni, 120 Ni, 10 Cu

programmableRange: -40° C to 200° CTrip/alarm range: 0°C to 200° CDead band: 2° CAccuracy: ±2° CLead resistance: Pt or Ni RTD: 25 Ω max

Cu RTD: 3 Ω maxthree-wire lead resistance compensation

DIGITAL/SWITCH INPUTS (OPTION IO)Inputs: 6 optically isolatedInput type: Dry contact (<800 Ω)Function: Programmable

RRTD Technical Specifications


RRTD * * * *RRTD

HI 50 – 300 VDC/40 – 265 VAC LO 20 – 60 VDC/20 – 48 VAC

IO Optional input and output0 No optional input and output

F Optional fiber optic port0 No optional fiber optic port

P Optional Profibus protocol interface0 No optional Profibus protocol interface

Note: The control power (HI or LO) must be specified with all orders.

Ordering

OUTPUTS

ANALOG OUTPUT (OPTION IO)

PROGRAMMABLEOUTPUT 0 – 1 mA 0 – 20 mA 4 – 20mAMAX LOAD 2400 Ω 600 Ω 600 ΩMAX OUTPUT 1.01 mA 20.2 mA 20.2 mA

Accuracy: ±1% of full scaleIsolation: 50 V isolated active sourceOUTPUT RELAYS (OPTION IO)

RESISTIVE LOAD INDUCTIVE LOAD(PF = 1) (PF = 0.4)(L/R – 7ms)

Rated Load 8 A @ 250 VAC 3.5 @ 250 VAC3.5 A @ 30 VDC 3.5 A @ 30 VDC

Carry Current 8 AMax Switching 2000 VA 875 VA

Capacity 240 W 170 WMax Switching V 380 VAC/125 VDCMax Switching I 8 AOperate time <10 ms (5 ms typical)Contact Material silver alloy

Accessories

RTDPC Program

Setup and monitoringsoftware provided freewith each relay.

F485

Converts communica-tions between RS232and RS485 fiber opticused to interface acomputer to the relay.

Dimensions

813702A2.dwg

SIDE VIEW REAR VIEW MOUNTING

4.00"(102)

7.75"(197)

6.125"(156)

0.218" (6) DIA.(4 PLACES)

6.125"(155)

6.65"(169)

Inches(mm)

MOUNTINGSURFACE

10.2

4"(2

60)

10.8

75"

(276

) 10.8

75"

(276

)

11.3

5"(2

88)

GE Multilin 173

15

MPMMPMMotor Protection Meter

Continuous metering of motors via a

269 Motor Management Relay®.


AC/DC universal power supply

Compact size

Inputs/Outputs

Four 0-1 mA (A1 option) or 4-20 mA (A20 option) outputs of:

Average current (Amps)

3 phase real power (kW)

3 phase reactive power (kvar)

Power factor

Failsafe form-C dry contact output relay

Isolated RS485 comm port

VT wiring configuration selection

Protection Provided by 269

kvar limit

Voltage phase reversal

Under/overvoltage alarm/trip

Power factor alarm/trip (lead/lag)

MPM communication failure alarm

Metering Data Displayed by 269

3 phase voltage

Average voltage

Power factor

Real power (kW)

Reactive power (kvar)

Power consumption (MWh)

Frequency (Hz)

PACKAGING

Shipping Box: 81/2" x 6"" x 6" (L x H x D)215 mm x 152 mm x 152 mm (L x H x D)

Ship Weight: 5 lbs / 2.3 kg

TYPE TESTS

Dielectric Strength: 2.0 kV for 1 min to relays, CTs, VTs, power supply

Insulation Resistance: IEC255 - 5 500 VDCTransients: ANSI C37.90.1 Oscillatory

2.5 kV/1 MHzANSI C37.90.1 Fast Rise5 kV/10 nsOntario Hydro A-28M-82IEC255-4 Impulse / High Frequency DisturbanceClass III Level

Impulse Test: IEC 255-5 0.5 J 5 kVRFI: 50 MHz/15w TransmitterEMI: C37.90.2 Electromagnetic

Interference @ 150 MHz and 450 MHz, 10 V/m

Static: IEC 801-2 Static DischargeHumidity: 95% non-condensingTemperature: -10°C to +60°C ambientEnvironment: IEC 68-2-38

Temperature/Humidity Cycle


MPM Motor Protection Meter

DESCRIPTIONThe MPM provides additionalmetering capabilities such as threephase voltage, pf, real power, reac-tive power, Wh, and frequency forthe GE Power Management 269 or269 Plus Motor Management Relay.

All setpoint programming for theMPM is accomplished via the 269over the serial communicationslink.

Due to the compact size of theMPM, it is especially practical forapplications where mounting spaceis limited. The MPM is a “blackbox” unit which uses serialcommunications to transmit /receive data to and from the 269.Therefore, it can be mounted insidethe switchgear or in a locationwhere there is more room avail-able. A single twisted pair communication wire is routedto the 269.

To obtain optimum accuracy meter-ing class CTs should be employed.But in applications where mount-ing space and/or cost is an issue,the relaying class CTs used withthe 269 can be connected in serieswith the MPM.

The MPM comes complete withfour isolated 4-20 mA (A20 option)or 0-1 mA (A1 option) analogoutputs which are permanentlyconfigured to provide an outputbased average current, real power(kW), reactive power (kvar), andpower factor respectively.

The MPM also comes complete witha powered form-C failsafe outputrelay. This relay can be used to indi-cate if the MPM is on or off. Therelay will also change state if a selfdiagnostic failure is detected on theMPM.

MPM Technical Specifications

COMMUNICATIONS

COM1 Type: RS485 2 wire, half duplex, isolatedBaud Rate: 1,200Protocol: 269

INPUTS

VOLTAGE INPUTSConversion: True RMS, 64 samples/cycleInput Range: 20 - 250 VACFull Scale: 150/600 VAC autoscaledBurden: <0.1 VAFrequency: up to 32nd harmonic

METERING

CURRENT INPUTSConversion: True RMS, 64 samples/cycleCT Input: 1 A and 5 A secondaryBurden: 0.2 VAOverload: 20 x CT for 1 sec

100 x CT for 0.2 secFull Scale: 150% of CTFrequency: up to 32nd harmonicMEASURED VALUES

ACCURACYPARAMETER (% OF DISPLAY) RESOLUTION RANGEVOLTAGE ±1% 1 V 20% OF VT TO 100% OF VTCURRENT ±1% 1 A 1% OF CT TO 150% OF CTkW ±2% 1 kW 0 - 65535 kWkvar ±2% 1 kvar 0 - 65535 kvarkWh ±2% 1 MWh 0 - 65535 MWhPOWER FACTOR ±2% 0.01 ±0.0 - 1.0FREQUENCY ±0.2% 0.1 Hz 20.00 - 70.00 Hz

OUTPUTS

ANALOG OUTPUTSAccuracy: ±2% of full scale

OUTPUT0-1 mA (A1 Option) 4-20 mA (A20 Option)

Max Load 2400 Ω 600 ΩMax Output 1.1 mA 21 mAIsolation: 50 V isolated, active sourceOUTPUT RELAY

VOLTAGE MAKE/CARRY MAKE/CARRYCONTINUOUS 0.2 sec BREAK

30 VDC 5 30 5

RESISTIVE 125 VDC 5 30 0.5

250 VDC 5 30 0.3

30 VDC 5 30 5

INDUCTIVE 125 VDC 5 30 0.25

(Vr=7ms) 250 VDC 5 30 0.15

120 VAC 5 30 5

RESISTIVE 250 VAC 5 30 5

INDUCTIVE 120 VAC 5 30 5

PF = 0.4 250 VAC 5 30 5

CONFIGURATION FORM C NO/NC

CONTACT MATERIAL SILVER ALLOY

POWER SUPPLY

CONTROL POWERInput: 90-300 VDC/70-265 VAC 50/60 Hz(HI option)

20-60 VDC/20-48 VAC 50/60Hz(LO option)Power: 10 VA nominal

20 VA maximumHoldup: 100 ms typical

APPROVALS

ISO: Manufactured to an ISO9001 registered programUL: Recognized under E83849CSA: Recognized under LR41286

: Conforms to IEC 947-1



5


175

Typical Wiring

CO

NT

RO

L PO

WE

R

ME

TE

R

1 2 3 4

V1 V2 V3 VN

9 10 11 12 13 14 15 16 17

5A 5A 5A1A 1A 1ACOM COM COM

PHASE A PHASE B PHASE C

CURRENT INPUTSVOLTAGEINPUTS

1 2 3 4

V1 V2 V3 VN

9 10 11 12 13 14 15 16 17




1 2 3 4

V1 V2 V3 VN

9 10 11 12 13 14 15 16 17




1 2 3 4

V1 V2 V3 VN

9 10 11 12 13 14 15 16 17




N

N

B

N

LLOAD

C

B

ALOAD

A

C

LOAD

PHASE A CT

PHASE B CT

PHASE C CT

PHASE A CT

PHASE B CT

PHASE C CT

PHASE A CT

PHASE B CT

PHASE C CT

PHASE A CT

PHASE B CT

PHASE C CT

A

A

A A

A

C

B

C

N

C

B

B B

C C

N N

B

N

3 WIRE DIRECT/120˚ VOLTAGENO VTs

4 WIRE WYE/60˚ VOLTAGE2 VTs (2-1/2 ELEMENTS)

4 WIRE WYE DIRECT/120˚ VOLTAGENO VT

4 WIRE WYE/120˚ VOLTAGE3 VTs

600V MAX

ANY VOLTAGE

600V MAX

ANY VOLTAGE

LINE

LINE

LINE LOAD

LINE

VTan

VTan VTbn VTcn

1 2 3 4

V1 V2 V3 VN

9 10 11 12 13 14 15 16 17




B

LOAD

A

PHASE C CT

PHASE B CT

PHASE A CTA

B

C C

3 WIRE DELTA/60˚ VOLTAGE2 VTs

LINE

VTab VTcb

VTcn

ALTERNATIVE CT/VT CONNECTIONS

48

47

46

28

27

26

25

24

21

TO PLCs,RTUs METERs

ORSCADA SYSTEM

ETC.

1+AMP

2+KW

3+KVARS

4+PF

COM

SHIELD

COM

_+

USE SHIELDEDTWISTED PAIR

WIRE

USE HEAVYGAUGE WIRE

SWITCHGEARGROUND BUS

45

44

43

33

32

31

SW COM

SW1

SW2

NO

COM

NC

8

85

7

84

6

5

L+

+-

N _

SAFETYGROUND

FILTERGROUND

RS

485

269

AN

ALO

G O

UT

OU

TP

UT

RE

LAY

SW

ITC

HIN

TP

UT

S

OBSERVE CT & VTPOLARITY

Perferrred 4 wire configuration

*Note: Accurate only with balanced phase voltages

269/269PlusRELAY

NOTES:

1) Relay contact state shown with control power not applied.

CAUTION:USE HRC FUSES FOR VT PRIMARY TO ENSUREADEQUATE INTERRUPTING CAPACITY.

998108A4.cdr

LO OPTION

20-60 VDC20-48 VAC 50/60 Hz

HI OPTION

90-300 VDC70-265 VAC 50/60 Hz

DELTA

4 WIRE, 2VT

4 WIRE, 3VT

CONNECTION

CLOSED

CLOSED

SW2

OPEN

OPEN OPEN

OPEN

SW1MPM CONFIGURATION

A20

A1

OPTION

4-20mA

0-1mA

TYPE

ANALOG OUTPUTS


GE Power Management



Features

998109A6.cdr

COMPACT DESIGNPanel or chassis mount replaces manydiscrete components with one standardmodel.

21 NC NC 24 25 26 27 28 NC NC 31 32 33 NC NC NC 44NC 45NC 46NC 47NC 48NC NCNC NC43 NC

87654321

NCNCNC17161514131211109

MAXIMUM CONTACT RATING250 VAC 10A RESISTIVE1/4HP 250VAC 1/2HP 125VAC

MPM MODEL NO.:

CONTROL VOLTAGE:

VERSION:

CUSTOMER TAG No.:

90-300VDC 20VA70-265VAC 50/60HZ 20VA

MPM-HI-A20

MADE INCANADA

FUSE ACCESS

ANALOG OUTPUTS4 isolated 0-1mA(A1 option) or 4-20 mA(A20 option) outputs assigned toaverage current, real power, reactivepower and power factor.

SWITCH INPUTS12

For VT connection selection

Control power fuse accessible undersliding door.

COMMUNICATIONSRS485, isolated, communications port totransmit and receive data from the 269

OUTPUT RELAYOne form-c failsafe output relay

VT INPUTS:0-600V, 3 wire or 4 wire voltage inputs.Direct (up to 600V) or VT (>600V forisolation) connections.

GROUND:Separate safety and filter groundAll inputs meet C37.90 and IEC 801-2EMI, SWC, RFI interference immunity.

AC/DC CONTROL POWERUniversal control power90-300 VDC/70-265 VAC (HI option)20-60 VDC/20-48 VAC (LO option)

CT INPUTS:3 isolated phase CT inputs1 Amp or 5 Amp secondary

Ordering

To order select the basic model and the desired features from the Selection Guide below.

MPM * *MPM Basic unit, all current/voltage/power measurements, 1 269 comm

port, failsafe form-C output relayLO 25-60 VDC, 20-48 VAC 50/60 HzHI 90-300 VDC, 70-265 VAC 50/60 Hz

A1 Four 0-1 mA analog outputsA20 Four 4-20 mA analog outputs www.GEindustrial.com/pm

Order online –Order online –save timesave time

175

7

Synchronous Motor Protection and Control


Protects motor during start up and in theevent of asynchronous operation

Prevents overheating of cage winding

Automatic phase rotation correction

Regulator tuning mode

True RMS metering with DFT filtering

Statistics for improved maintenance

Built-in self-diagnostics

Two modes of pull-out protection

Optional power factor regulator with fiveadjustable set points

Applications

Starting, synchronizing and protection ofcollector-ring or brushless-typesynchronous motors



DC field current loss, exciter current loss,DC field voltage check

PF regulation, reluctance torquesynchronizing

Monitoring

Motor power factor

Motor run time, number and type of trips

User Interfaces

RS485 port

Starting protection, synchronization

and control for synchronous motors.

GE Multilin


SPM Synchronous Motor Protection and Control

176

7

ProtectionThe SPM controls starting,synchronizing and protection ofcollector-ring or brushless-typesynchronous motors.

Stall Protection

An important protection functionis preventing cage winding over-heating during both starting andrunning out of synchronizationconditions.

For brushless motors, stall/acceler-ation protection is derived fromthe stator current inputs. Stallprotection activates when anoperating motor is stopped withpower factor protection enabled.Protection characteristics areshown in the following graph.

Typical cage heating protection for brushlessmotors.

For collector ring motors, speedis determined from the frequencyof the induced field current. Atless than synchronous speed thefollowing typical cage heatingprotection characteristics are used:

Typical cage heating protectioncharacteristics for collector ring motors.

The SPM tracks synchronizedmotor cooling in 20 minute inter-vals to prevent motor abusecaused by frequent starting.

DC Field Current Loss Protection

This feature trips the motor whenfield current drops below theprogrammed setpoint after themotor has synchronized. To utilizethis feature a separate accessorypackage must be ordered.

Reduced Voltage Starting

The SPM can temporarily extendthe stall time during a reducedvoltage start. This allows motoracceleration to synchronousspeed in a longer time periodthan with a full voltage start.

Incomplete Sequence Protection

If the motor does not synchronizewithin the programmed timesetpoint, the relay will trip the motor.

701767A9.cdr

MOTOR

LOAD

AC BUS

CLUTCHCOUPLING

DC SUPPLY

27 26F 95

96

56

95

48

94

86

94

48

55

SPM

StatorProtection

(469)

Calibrator

DCCT

37

50IAC

VDC

IDC

VAC

ANSI DEVICE NUMBERS

Field overtemperatureUndervoltageUndercurrent or underpowerIncomplete sequenceInstantaneous overcurrentPower factorField applicationLock outTrippingReluctance torque sync. / resync.Autoloading relay

26F2737

4850

5556869495

96


701762A6.cdr

2

200

150

3

7

4

89

6

15

300

30

500

20

400

70

900

80

1000

90

1500

40

600

60

800

50

700

5

10

100

2000

.8 .9 1 4 7 8 1065321.5Trip Current

(Multiples of Programmed Full Load Current)

Trip

Tim

e (s

eco

nd

s)

A

B

C

A

B

C

Stall Time - 30 SecLocked Rotor - 6XFLC



1

200

150

2

6

3

8

5

15

25

20

60

80

30

50

40

4

1.5

10

100

0 10 20 60 90 1008070504030

% Synchronous Speed 701761A8.cdr

Run

Tim

eA

llow

able

Zer

o S

peed

Sta

ll Ti

me

3.00

2.05

1.46

1.05



177

7

These curves show how the trip characteristicof the amortisseur winding protection isadjusted for reduced voltage starts.

Exciter DC Voltage Protection

Exciter voltage check protectionis provided by connecting exciteroutput to SPM terminals VE+ andVE- through a voltage dividernetwork (VDN). This is used onequipment with exciters ener-gized prior to motor startup.

Field Winding Overtemperature

This function emulates a resistancetemperature device (RTD) on thefield windings. An RTD device’sresistance is temperature depend-ent. As the temperature increases,the resistance of the RTD increases.To utilize this feature a separatePG2SPM or PG4SPM accessorymust be ordered.

Control FeaturesThe SPM offers users advancedcontrol features such as:

Power Factor (Pull-Out) Protection

The SPM provides pull-out protec-tion for synchronous motorsoperating in either generating ormotoring modes. The SPMprovides power factor settings andalso displays the measured lead-ing/lagging power factor. The powerfactor regulation option enablesfield forcing in advance of a pull-outcondition. Motor pull-out protectionis provided by a circuit which moni-tors the power factor and has a built

in time delay to prevent inadvertenttripping on transients. Two modesof pull-out protection are available,re-sync mode and ride-thru mode.These modes will be initiated if thelagging power factor drops belowthe programmed set point, or if aline current surge occurs which isabove four times the motor full loadcurrent.

Re-sync mode operation willcause the Field Application Relay(FAR) to remove the motor fieldexcitation. The motor will continueto run with the field removed forthe programmed power factordelay time. If re-synchronizationdoes not occur within this timethe trip relay will operate and themotor will stop.

In ride-thru mode the motor fieldexcitation is not removed imme-diately. Instead, the SPM allowsthe motor to run for the powerfactor delay time. If the powerfactor dip or line current surgepersists the trip relay will operateand the motor will stop.

Starting and Synchronizing

For collector ring motors, the SPMdetects the proper rotor speed andangle and determines the correcttime to close the field applicationrelay based on the percentsynchronous slip setpoint. Thisapplies excitation to the motorfield and opens up the fielddischarge resistor loop.

For brushless motors, the voltageis applied to the exciter after apreset programmable time elapses.Power factor pullout protection isthen enabled. A contact (FCX) isalso provided to signal automaticmotor loading.

Reluctance Torque Synchronizing

When a lightly loaded synchronousmotor pulls into synchronizationbefore the rotor poles are exter-nally magnetized, this is known asreluctance torque synchronizing.The SPM’s field application controlresponds by properly applyingexcitation if a motor synchronizeson reluctance torque.

Power Factor Regulation

Power factor regulation is a DCcontrol signal output used tocontrol a variable SCR exciteroutput. This replaces the standardpower factor analog signal output.This option is not recommendedfor brushless applications. Theregulator has five set-points thatcan be adjusted while the motor isrunning to facilitate regulatortune-up. They are:

PF setpoint – range from 0.9lagging, through 1.0 to 0.0 leading

Reg output – upper limit of thecontrol voltage output signal

Reg gain – adjusted for optimumregulator performance

Reg stability – time adjustment tohelp compensate for instability

Reg floor – lower limit of thecontrol voltage output signal

Power factor regulation – functional blockdiagram.

Monitoring andMeteringUsers can take advantage ofmonitoring and metering func-tions including:

SPM Displays and Messages

The unit contains an LCD display forprogramming, displaying trip infor-mation, and readout of runningparameters such as line amperes,field amperes, power factor, linecurrent, field volts, field current, andfield ohms. The SPM also storesmotor run time and the number andtypes of motor trips. Trip, Field

1

200

150

2

6

3

8

5

15

25

20

60

80

30

50

40

4

1.5

10

100

0 10 20 60 90 1008070504030% Synchronous Speed

65%

80%

90%100%

701760A8.cdr

Run

Tim

eZe

ro S

peed

Sta

ll Ti

me

LineVoltage50%

MainContactor

A

B

C

MOTOR

Field

DC Supply toMotor Field

FieldContactor

SCRProportional

Exciter

CurrentInput

VoltageInput

PFDetection

PFRegulator Control

Signal

PFFeedback

PFSetpoint

RegStability

RegFloor

RegOutput

RegGain

701754A5.cdr

SPM

Application (FAR) and FCX relaystates may also be monitored.

Self-Tests and Diagnostics

The SPM has built-in test diag-nostics to indicate that the relayis operating properly prior tostart-up. The SPM's separate testmode allows the user to verifythe following:

Trip relay contacts System test Squirrel cage protection test Synchronization Power factor test

Upon entering the test mode theSPM de-energizes the trip contactand upon exiting the test mode thetrip contact is re-energized. Systemtest performs a complete check oninternal memory, input-outputdevices and other system functions.

Inputs and OutputsThe SPM offers the user a varietyof input and output solutions:

Field Voltage Input: The inducedfield voltages VF+ and VF- aremonitored through their connec-tion to the external dischargeresistor via the VDN, providinginstantaneous value of motor slip.

Exciter Voltage Input: VE+ andVE- terminals are connected tothe exciter via the VDN to moni-tor DC exciter voltage.

Exciter Current Input: The fieldcurrent IE+ and IE- terminals areconnected to the DC field via a DCCTand a calibration module (orderedseparately) to detect field loss.

Motor Line Current: Two inputterminals, plus two for brushless,are connected to the systemcurrent transformers.

Motor 'On' Input: Accepts anormally closed dry electricalinterlock that opens when themotor is energized and closeswhen the motor is de-energized.

Reduced Voltage Starting Input:

Accepts a normally open dryelectrical interlock that closeswhen the motor reaches full volt-age during a reduced inrush start.

Control Power: The SPM has an ACpower supply with a range from 85to 265 VAC. If control voltage excur-sions occur outside this range, anexternal stabilizing transformershould be used in conjunction withoptional separate power factorreference voltage inputs.

Power Factor Reference Voltage:

PF reference voltage derives fromcontrol power, V1 and V2. TheSPM also has optional inputs forseparately powered PF referencevoltage, V1EXT and V2EXT.Effective range 85 to 265 VAC.

Power Factor Analog Signal

Output: A zero to ten volts DCsignal corresponds to motorpower factor. Zero volts repre-sents zero lagging power factor,five volts represents unity powerfactor, and ten volts representszero leading power factor. A onevolt change corresponds to an 18degree phase shift. If powerfactor regulation is provided, thisanalog signal output is replacedwith the PF regulation output.

Power Factor Control Signal: Thisoption uses the PF analog outputto supply a 0 to 10 V controlsignal to a variable SCR exciter.

Trip Relay: Two trip terminals areconnected to a failsafe normallyopen contact. This contact closes onrelay power up and opens on a tripcondition to de-energize the motor.

FAR Relay: Two field applicationrelay terminal points are anormally open contact. Thiscontact closes to apply DC to the

motor field to pull motor intosynchronization.

FCX Relay: The FCX (field contac-tor auxiliary) relay picks up asetpoint time delay after the FARrelay picks up and is used tosignal external systems to autoload/unload the motor.

Communications

The SPM is equipped with a rearRS485 port that could be used forremote communications, or forconnection to a DCS, SCADA, orPLC. The port supports ModBus®

RTU protocol. The RS485 port isvariable from 300-115,000 bps.The communication port may beactive simultaneously withoutadversely affecting response time.

Software

The Windows®-based SPMPCsoftware allows the user tomanipulate and display SPM dataon a PC. A simple point and clickinterface allows setpoint files foreach motor to be stored, printedfor verification, and downloadedto the SPM for error free setpointentry. In addition, the completeSPM manual is included as a helpfile for quick local access.



178

7

PERSONAL COMPUTER

COM PORTRS232

DB9

GEPM RS485CONVERTER OR

EQUIVALENT

120 OhmTERMINATING

RESISTOR

InfTERMINATING

CAPACITOR

120 OhmTERMINATING

RESISTOR

InfTERMINATING

CAPACITOR

SPM UNIT #1 SPM UNIT #2 SPM UNIT #32

701777A1.dwg

GNDA3

+A2

-A1

GNDA3 GND

A3

+A2

+A2

-A1

-A1

SPM

SCROLL

SYNCRONOUS MOTORPROTECTION & CONTROL

ENTER

SPM

SCROLL


ENTER

SPM

SCROLL


ENTER

9 8 7 6 5 4 3 2 1

9 8 7 6 5 4 3 2 1

123456789

DCDRX (PC)TX (PC)DTRSIGNAL GNDDSRRTSCTSRI

DB9 SIGNALS

DB9RS232GND

RS485

POWER

RS485 connection for a reliable communication system that is immune to system transients.



179

7

GE KEYUsed to enter or exit the differentmodes of the SPM. These are Standby, Test, Statistics, and Programming modes.

LOCKING PROVISIONA wire lead seal can be used toprevent unauthorized removal of relay.

ENTER KEYUsed to make a selection or actsas an enter key.

DISPLAY FUNCTION MENUMenu of all accessible setpointsand actual values for easy reference.

QUICK RELEASE TABSUsed to remove display for easyaccess to drawout.

CONTRAST DIALLightens or darkens display.

PULLDOWN DOORHides menu when not in use.

LCD DISPLAYBacklit 32 character display forsetpoints, actual values and status.Programmable auto scan sequence for unattended operation.

SCROLL KEYSUsed to scroll through the variousmenus and change setpoint parameter values.

S1 CASECompact S1 rugged metal/bakelitecase. Fits standard cutout.

MOTOR LINE CURRENT2 Phase current inputs.Accept #8 wire. CONTROL POWER

85 TO 265 VAC.

TERMINAL BLOCK ARELAYS TRIP: Normally open,

failsafe trip relay.FAR: Field applicationrelay.FCX: Autoloading of themotor.

INPUTS EXCITER: Exciter voltageinputs. Connected viaDCCT and CM.FIELD: DC field voltageinput.REDUCED VOLTAGE:Contact input forreduced voltage starting.Motor “ON” input.Exciter current input.Power Factor referencevoltage (for separatelypowered option).

OUTPUTS POWER FACTOR:0-10 VDC analog signal.

701750AF.cdr

SPM Sync. Protection/Control

RS

485+

V2E

XT

FAR

2

NC

NX

1

MX

1

FCX

CO

M N-

VF+ VE

-

TR

P2

I E-

NC

NC

RS

485-

RS48

5 G

ND

V1E

XT

FAR

1

NX

2

MX

FCX

N/O

FCX

N/C

N+

VF-

VE

+

TR

P1

IE+

NC

Standard Features

Front View

Rear View



180

7

Typical Wiring

USED FOR SEPARATELYSUPPLIED POWER FACTOR

REFERENCE VOLTAGE(OPTIONAL CONNECTION)

STOP START

MAINAUXILIARYM

M

EXCITERCONTACTOR

M

OL

SUPPLY

C

B

A

TYPICAL COLLECTOR RING MOTOR CONNECTION

T1

PHASE C T3

T2

(+)

F1

FIEL

D

FIELDDISCHARGERESISTOR

FIELDCONTACTOR

FC

FC

EXCITERV+

EXCITERV-

CM8

CM7

FC

F2

(R1)

(F2)

(E+) (V+)

(E-) (V-)

+

-

VOLTAGE DIVIDERNETWORK (VDN)

A17

A16

N+

N-PO

WE

RFA

CT

OR

OU

TP

UT

V1

V2

B9

G1

B8

B10

CO

NT

RO

LP

OW

ER

RE

F. VO

LT.

CHASSIS GROUND

FILTER GROUND

A21

A20

V +

V -

A18

A19

V +F

F

E

E

V -

EX

CIT

ER

/FIE

LDV

OLT

AG

E

FIELDCURRENT

OPTIONALREF. VOLT.

A5 A4

V V

A24 A25

I - I +EE 1EXT 2EXT

RE

DU

CE

DV

OLT

AG

E

DIG

ITA

L IN

PU

TS A11

A12

MX1

MX2

MX

MO

NIT

OR

A9NX2

A10NX1

SYNCMOTOR

PF ANALOG OUTPUT ORPF REG CONTROL SIGOUTPUT (IF PFREGULATOR OPTION)

ON REDUCED VOLTAGESTARTERS, REMOVE JUMPER AND CONNECTA NO. AUX CONTACTFROM THE FINAL STEPCONTACTOR HERE.

RM

EXCITER

TO EXCITERPOWER SUPPLY

BRUSHLESS & COLLECTOR RING - 701756AP.cdrCOLLECTOR RING - 701751.DWGBRUSHLESS - 701753.DWG

( )

B1

I2S I2T

PHASE CURRENT INPUT

B2 B4B3

I3TI3S

FCFIELD CONTACTOR

RM

MX

NOTES:

1) Relays shown with no control power applied to relay

2) *Trip Relay closed during normal operation

FIELD CURRENT CALIBRATION MODULEDIRECT CURRENT CTMAIN CONTACTOROVERLOAD RELAYMOTOR TERMINALSOPTIONAL ACCESSORIES

CMDCCTMOLT1, T2, T3

NOMENCLATURE

FIELD CURRENTCALIBRATIONMODULE (CM)

240 VAC

120 VAC

6 5

2 1

4 3

8

7

FIELD CONTACTOR

TYPICAL BRUSHLESS MOTOR CONNECTION

T1

T3

T2

EF1

FIEL

D

FC FC

R

EF2

(E+) (V+)

(E-) (V-)

VOLTAGE DIVIDERNETWORK (VDN)

SYNCMOTOR

A18

A19

V +F

FV -

EXC

ITER

/FIE

LDV

OLT

AG

E

A21

A20

V +

V -E

E

A

B

C

PHASE CURRENT INPUT

DCCT

A13

A14

A15

COM

FCXN/C

FIELDC

ON

TAC

TOR

AU

X.

(FCX

)

A22

A23

*TR

IP

OU

TPUT R

ELAY

S

FCXN/O

TRIP1

TRIP2

A6

A7

FIELDA

PPLICATIO

N(FA

R)

FAR 1

FAR 2

M

RS

485

A1-

A2+

A3COMMGND

TO PLCOR COMPUTER

B1

I2S I2T

B2 B4B3

I3TI3S


GE Multilin


GE Multilin



181

7

TYPE TESTS

Dielectric strength: Per IEC 255-5 and ANSI/IEEE C37.902.0 kV for 1 minute from relays, CTs, VTspower supply to safety ground

Insulation resistance: IEC255-5 500 VDC, from relays, CTs, VTs,power supply to safety ground

Transients: ANSI C37.90.1 oscillatory (2.5 kV/1 MHz)ANSI C37.90.1 fast rise (5 kV/10 ns)Ontario Hydro A-28M-82IEC255-4 impulse/high frequencydisturbance, Class III Level

Impulse test: IEC 255-5 0.5 Joule 5 kVEMI: C37.90.2 electromagnetic interference

@ 150 MHz and 450 MHz,10 V/m

Static: IEC 801-2 static dischargeVibration: Sinusoidal vibration 8.0 g for 72 hrs

APPROVALS

UL: UL listedCSA: CSA approved

PACKAGING

Shipping box: 12.50" x 10.50" x 9.75" (L x H x D)318 mm x 267 mm x 248 mm (L x H x D)

Ship weight: 14.25 lbs/6.45 kg

ENVIRONMENTAL

Humidity: 0 – 95% non-condensingOperating temperature: -20° C to +70° CStorage temperature: -40° C to +85° C

POWER SUPPLY

CONTROL POWERInput: 85 – 265 VAC @ 48 – 60 HzPower: 10 VA nominalHoldup: 100 ms typical @ 120 VAC

OUTPUTS

PF ANALOG OUTPUTType: ActiveOutput: 0 – 10 VDC max @ RL ≥1K (min load)Accuracy: ±10% (0.1 v)Isolation: 36 V VpKRELAY CONTACTSType: FAR, TRP Form A

FCX Form CRated load: 10 A AC continuous NEMA A300

1 A DC continuous NEMA R300Break: 10A 250 VAC or 30 VDCMax operating voltage:

250 VAC

INPUTS

FIELD CURRENT INPUTSCT primary: 5 – 1000Conversion range: 0.05 – 1 x CTAccuracy: ± 2%EXCITER VOLTAGE INPUTSConversion: 0 – 350 VDC (prior to VDN)Accuracy: ±1%SWITCH INPUTS (MX AND NX)Type: Dry contactInternal interrogation voltage:

85 – 265 VAC (control voltage)

MONITORING

POWER FACTORRange: 0.01 to 1 to -0.01Time delay: 0.1 – 10 secAccuracy: ±5%

METERING

PHASE CURRENT INPUTSCT primary: 5 – 2000CT secondary: 5 Conversion range: 0.05 – 6 x CTFrequency: 50/60 HzAccuracy: @ <2 x CT ±0.5% of 2 x CT true RMS

@ ≥2 x CT ±1% of 6 x CT true RMS

SPM Technical Specifications


Dimensions

SPM FRONT SPM SIDE SPM PANEL CUT-OUT

6.75"(171)

1.42"(36)

6.19"(157)

0.75"(19)

0.22"(5.6)

(4 PLACES)0.25" Dia.(6.3)

8.38"(212)

4.19"(106)

2.19"(56)

4.38"(111)

CL CL

6.94"(125)PANEL

9.29"(236)

8.81"(224)

4.41"(112)

0.22"(5.6)

5.69"(144)

CUTOUT

Inches(mm)

701752A9.dwg




182

7

SPM *SPM SPM: standard starting and protection relay with VDN board

PF PF: power factor regulation option used on motors with proportional SCR exciter. (not recommended for brushless applications)

Accessories

PG2SPM: External hardware package for overtemperature and current lossprotection up to 200 A (includes 1-DCCT200 and 1-CM)

PG4SPM: External hardware package for overtemperature and current lossprotection up to 400 A (includes 1-DCCT400 and 1-CM)

MPSPM: Mounting panel to retrofit existing µSPM cutouts for SPM

OrderingSPM GuideformSpecificationsFor an electronic version of the SPMguideform specifications, pleasevisit: www.GEindustrial.com/Multilin/specs, fax your request to 905-201-2098 or email to [email protected].

Hardware

Space Saving Case

The SPM is supplied in a compactS1 drawout case. The drawoutcase allows the unit to be removedwithout disconnecting the rearterminal wiring.

Voltage Divider Network (VDN)

The VDN is provided to connectthe SPM to field and/or excitervoltages.

The VDN is included as a standard accessory.

Calibration Module (CM)

This optional accessory providesproper AC excitation to the DCCTand provides calibration adjust-ment to obtain correct field ampreadings. The CM is required forfield current and/or field over-temperature features.

The CM calibration module is included with theoptional PG2SPM or PG4SPM overtemperature/current loss accessory package.

Direct Current Current

Transformer (DCCT)

The optional DCCT detects DC fieldcurrent. The DCCT is required forfield current and/or field over-temperature features. 200A and400A versions are available. TheDCCT works in conjunction withthe CM and both are available in aseparate accessory package. Seeorder code for more details.

DCCT is included with the optional PG2SPMor PG4SPM overtemperature/current lossaccessory package.


183

7

Motor Protection Relay


Minimizes downtime due to processproblems

Alarms in event of process malfunction

Compact size to fit most motor starters

Connectivity to central control andmonitoring system

Continuous monitoring and fast faultdiagnosis

Simulation mode and pickup indicator

Monitors up to three RTDs

Optional analog output for direct PLCinterface

Applications

Complete protection of three-phaseAC motors and associated mechanicalequipment

Pumps, conveyors, compressors, fans,variable frequency drives, multi-speedmotors


Protection

Overload, phase short circuit, lockedrotor

Single-phase/unbalance, ground fault,overtemperature


Status, current, temperature

Trip record, process control

User Interfaces

RS485 ModBus® communications

Motor protection and

management for small

to medium size motors.

GE Multilin

ProtectionThe 239 is a digital motor protec-tion relay designed for three-phase AC motors and associatedmechanical equipment. Advancedprotection features include:

Motor Starting

During acceleration, the motor isprotected by an I2t overcurrentcurve which passes through thesetpoints “Locked Rotor Current”and cold “Safe Stall Time.” Therunning overload curve is notactive during acceleration, there-fore providing starting protectionindependent of running protection.

Separate start and run modeling providesoptimum rotor and stator protection.

Motor Running

To protect the motor while it isrunning, one of 15 different curvescan be selected to accuratelymatch the motor overload charac-teristic. Curves automaticallyadjust for hot motor compensa-tion to ensure correct thermalmodeling. A user-programmableoverload lockout time allowssufficient cooling after an over-load trip. An Auto Reset featureresets the overload trip once thethermal capacity has decreased to15% or less.

An immediate overload alarmalerts the operator. This may beuseful for systems that do notnormally experience overloads.An immediate overload pickupsetpoint is also available.

Trip time overload curves, data and formulae are provided for protection and co-ordination.

Overheating

To detect the effects of motor over-heating due to such things asblocked ventilation or high ambienttemperature, direct temperaturesensing is necessary. Temperaturerise under these types of conditionsis usually slow enough to allow theaccurate sensing of the actualmotor temperature. A motor temp-erature input for a thermistor isstandard on the 239. Additionally,three RTDs located in the statorand/or bearings can be connectedto the 239 with the RTD tempera-ture sensing option. This providesdisplayed temperatures as well asalarm and trip settings for bothbearing and stator RTDs.

The RTD temperature sensing option givesmore precise protection from overheating.

Locked Rotor

A mechanical jam pickup and timedelay can help prevent damageto a locked rotor during running.

Thermal Capacity

A thermal capacity used alarm istriggered when the user’ssetpoint has been exceeded.

Single-Phase (Unbalance)

The unbalance protection func-tion has an unbalance pickuplevel and time delay that can trig-ger a trip or an alarm.

Ground Fault

Aging and thermal cycling cancause the stator insulation tobreak down, resulting in groundfaults. Ground faults can alsooccur in motors because of envi-ronmental conditions such asmoisture or conductive dust. The239 can trigger a trip or an alarmif the ground pickup level isexceeded. A time delay may beentered for time coordination ofsystems with several levels ofground fault detection.

Phase Short Circuit

Complete protection from phase-to-phase and phase-to-groundfaults is provided. This functioncan trip or activate an auxiliaryrelay either instantaneously ordelayed by up to 60 seconds.

Undercurrent

This function is typically used toprotect pumps from loss ofsuction, fans from loss of airflowdue to a closed damper, orconveyor systems from a brokenbelt. This function can be used asan alarm or as a trip, or disabledif not required. Alternatively thisfeature can be used as a pre-overload warning by setting theundercurrent pickup above thenormal operating current butbelow the rated full load current.


239 Motor Protection Relay

184

7

MOTOR CURRENT

SEPARATE START AND RUN PROTECTION

TR

IPT

IME

(sec

)

SAFESTALL

TIME

RUNCURVE

STARTCURVE

LOCKEDROTOR CURRENT

x1FLC

819769A5.CDR

15CURVE

1297

4

3

2

1

10

819765A8.CDR

PHASE CURRENT(multiples of full load)

1Full LoadSetpoint

239 OVERLOAD CURVES

0.1

10,000

1,000

100

TR

IPT

IME

(sec

on

ds)

10

1

819768AK.CDR

MOTOR

MOTOR BEARING RTD

MOTOR BEARING RTD

MOTOR STATORTHERMISTOR OR RTDs

Monitoring andMeteringThe 239 provides users withadvanced monitoring and meter-ing functions that include:

Metering

Measured values include: Phase current Ground current Unbalance Current % of full load (how close

to overload) Motor thermal capacity used

(how close to trip) Stator temperature (RTD option) Bearing temperature (RTD option)

Multi-Speed Motors

Optional switches allow alternateparameters to be activated forprotection of multi-speed motors.This allows for additional setpointgroups for:

Phase CT primary Full load current



Overload curve Short circuit trip settings

Analog Output Option

The analog output optionprovides an isolated 0 to 1, 0 to20, or 4 to 20 mA signal for inter-face to a PLC. The single output

that is continuouslymonitored can beselected as: averagephase current,motor full load %,thermal capacity

used, or RTD temperature.

For local operator monitoring, athermal capacity meter can beused with this output. Informationsuch as process loading andproximity to tripping or overheat-ing can be obtained with thisoutput.

Fault Diagnosis

The cause of a trip along withmeasured values of current,unbalance and temperature at thetime of trip are displayed. This

information facilitates trou-bleshooting. A trip record of thelast five causes of trip helps iden-tify a persistent problem.

Alarm functions include immedi-ate overload warning, unbalance,undercurrent and internal selfcheck fault. Often an alarm canbe generated soon enough toenable corrective action to betaken before a trip occurs.

Testing

While periodic calibration is notrequired, the PICKUP LED isuseful during commissioning orroutine verification to indicate thepickup point for phase overloador ground. A simulation mode isalso available that enables simu-lated currents to be used withoutthe need for a relay test set. Thisis ideal for verification of settingsand training.

185

7

37 Undercurrent/minimum load38 Motor/load bearing overtemperature46 Unbalance48 Locked rotor49 Stator winding overtemperature50 Phase short circuit51 Timed overload50G/50N Ground fault instantaneous or

definite time74 Alarm relay86 Lockout relay94 Trip relay

DEVICE PROTECTION

819763AF.CDR

51

49

38

50

37

86

74

46

50G

48

MOTORLOAD

AUXILIARYRELAY

SERVICERELAY

RS485

ALARMRELAY

TRIPRELAYLOCKED ROTOR

SHORT CIRCUIT

TIMED OVERLOAD

INSTANTANEOUSGROUND FAULT

STATOR OVERTEMPERATUREBEARING OVERTEMPERATURE

UNBALANCE

UNDERCURRENT

SERVICEALARM

FAULT/ALARM/PROCESSCONTROL

FAULT/PROCESSALARM

523 PHASE4160V BUS

400A

FUSEDCONTACTOR

3PHASE CTs

TRIP

GROUNDCT

THERMISTOR/STATOR RTD

BEARINGRTDs

RS485 REMOTECOMMUNICATION

239 RELAY

925146A3.cdr

THERMAL CAPACITYUSED %




186

7

The simulation mode can be run from thefront panel display or a PC.

User InterfacesThe 239 offers a variety of userinterfaces:

Communications

The 239 features an RS485connection with ModBus® RTUprotocol to communicate withmost types of PLCs and comput-ers. This allows any monitoredvalue, status and setpoints to beremotely accessed by a PLC orSCADA system. Correct operationof the communication port isverified by a front panel LED.

Future Expansion

GE Multilin relays communicateusing an open architecture proto-col and hardware interface,allowing different relays or otherdevices to be mixed on the samecommunication link. Due to itsstandard communication plat-form, the 239 can operate aloneor be integrated into a plantcontrol system.

With a standard platform, prod-uct upgrades are easily installedin the non-volatile flash memoryby simply loading new programcode via the serial port.

Software

For quick and accurate entry of allrelay setpoints, the Windows®-based 239PC software can beused instead of the front panelkeypad and display. A PC canconnect to the 239 via the serialport and a RS232/RS485 conver-tor (available as an accessory).All setpoints are stored in a fileand can be printed easily. Whennew relays are added, a completefile of settings can be down-loaded for error-free setpointentry.

Enter setpoints directly to the 239 orcopy/save relay settings to a file.

All information that can beaccessed from the relay can alsobe displayed on a PC. Thisincludes actual values, setpoints,status and trip records.

View motor current, temperature, statisticsand status.

Product update fromGE Multilin on CD.

Transfer new productenhancements toexisting 239 relaysvia the serial port.

819776A8.CDR

TRIP

ALARM

AUXILIARY

SERVICE

PICKUP

COMMUNICATE


CAUSE OF LAST TRIP:MECHANICAL JAM

Install the latest product enhancements in existing relays via the serial port.

COMINGSOONURPC Program

The URPC program allows thecreation of single line diagramsfor substation and system moni-toring schemes. Additionally,annunciator panel viewing,metering, and simple devicesettings changes can also beperformed using the program.With the URPC program the usercan access multiple 239s ordifferent devices for metering inreal time. The Windows®-basedURPC program may be usedremotely through ports on thedevice.

Display and Keypad

The 40 character LCD and keypadprovide convenient local commu-nications and control. Setpointscan be modified locally using thekeypad and display. To helpprevent unauthorized setpointchanges, a setpoint access inputmust be shorted before changescan be made.

LED Indicators

Six LED indicators on the frontpanel provide quick visual indica-tion of status.

Switch Inputs

The 239 has three fixed and twouser defined switch inputs:

Setpoint access: these terminalsmust be shorted together forkeypad setpoint configuration

Emergency restart: momentarilyshorting these terminals togetherwhen the motor is stopped willreset the thermal capacity usedto 0%, allowing for an immediaterestart after an overload trip.This will compromise the ther-mal protection functions of the239, making it possible todamage the motor

External reset: this input allowsremote or automatic reset

Option switch 1 and 2: theseinputs can be monitored by theserial port for process signalling;they can also be programmed toprovide an alarm or trip after aprogrammable time delay



187

7

TRIP

ALARM

AUXILIARY

SERVICE

PICKUP

COMMUNICATE

RESET

STORE

ACTUAL

VALUE

MESSAGE

SETPOINT

3637

1314

1516

1718

1920

2122

2324

2526

2728

2930

3132

3334

3839

4041

4243

4445

4647

4849

5051

5253

5455

56

35

5857

1

MA

XIM

UM

CO

NT

AC

T R

AT

ING

250 VA

C 10A

RE

SIS

TIV

E1/4H

P 125V

AC

1/2HP

250VA

C

GE Power M

anagement

MO

DE

LN

O.:

SU

PP

LY V

OLT

AG

ES

ER

IAL

NO

.: D6401234

VE

RS

ION

: 64D240C

4.000

CU

ST

OM

ERT

AG

No

.:

90-300V

DC

70-265V

AC

50-60Hz

20V

A20

VA

1234-567-89

239-RT

D-A

N

23

45

67

89

1011

12

MA

DE

IN C

AN

AD

A

819790AG.CDR

CUSTOMER ACCESSIBLE FUSEDoor slides open for easy access to fuse.

DISPLAY40 character illuminated display for all light conditions. Setpoints Actual values Status messages Fault conditions

STATUS INDICATORS Trip: Lit when the 239 detects a trip. Alarm: Lit when the 239 detects an alarm. Auxiliary: Lit when the auxiliary relay is operated. Service: Lit when the 239 detects an internal

fault condition. Pickup: Lit when motor full load or ground

pickup is exceeded. Communicate: Off if there is no communication at all,

flashes if RS485 activity but invalid messages, and on(steady) if communication is successful.

KEYPADRubber keypad makes installed unit dust tight and splash proof. Meets IP53/NEMA12.

PROTECTIVE DOORCovers keys when not in use.

COMPACT DESIGNReplaces many discrete compo-nents with one standard unit.

PHASE CT INPUTS3 isolated phase CT inputs. Accept 1 amp or 5 amp secondary.

GROUND CT INPUT5 A or 50:0.025 CT input for residually connected phase CTs or separate core balance CT.


®

®

CAUSE OF LAST TRIP:MECHANICAL JAM

AC/DC CONTROL POWERUniversal control power 90-300 VDC/70-265 VAC.

TEMPERATURE SENSINGNTC or PTC thermistor input.

4 RELAYS TRIP: Cause motor to trip by opening contactor or

energizing breaker trip coil. ALARM: Signals an alarm is present. AUXILIARY: Programmable for control or separate

trip/alarm. Serial port commands for remote control. SERVICE: Signals internal relay fault. Service is required.

OPTIONAL ANALOG OUTPUTSelect output as: thermal capacity used, current as a % of full load, average current, RTD 1 – 3 temperature. Isolated 4 – 20 mA for PLC process input or 0 – 1 mA for thermal capacity meter.

COMMUNICATIONSRS485 serial communications, 1200 – 19200 baud for remote monitoring, setpoint programming, and commands. Modbus® RTU protocol.

SWITCH INPUTS ACCESS: Enable/disable setpoint programming. RESTART: Over-rides lockout for process

restarting. RESET: Field reset after a trip. OPTION 1 and 2: User specified control inputs.

OPTIONAL 3 RTD INPUTSMix RTD types. Separate stator and bearing monitoring.

OPTIONAL DIRECTIONAL GROUND SENSINGPolarizing voltage input for directional ground sensing(MOD 509)

FeaturesFront View

Rear View



188

7

Typical Wiring

2 CT CONNECTION(NO GROUND)

RESIDUAL GROUND CONNECTION

ZERO SEQUENCE GROUND CONNECTION

PHASE A CT PHASE A CT

PHASE A CTSTARTER

80-300 VDC70-265 VAC 50/60 Hz

CONTROL POWER

SUPPLY 50:0.025GROUND CT

CONTACTORCOIL

SWITCHGEARGROUND BUS

PHASE C CT PHASE C CT

PHASE C CT

PHASE B CT

PHASE B CT

L1 L1

L1L1A

B

C

TWISTLEADS

L2 L2

L2L2MOTOR

L3 L3

L3L3

1 1

1

2 2

2

3 3

3

4 4

4

5 5

5

6 6

6

7 7

7

8 8

8

9 9

9

10 10

10

11 11

11

12 12

12

5A 5A

5A

5A 5A

5A

5A 5A

5A

5A 5A

5A

1A 1A

1A

1A 1A

1A

1A 1A

1A

COM COM

COM

COM COM

COM

COM COM

COM

COM COM

COM

PHASE A PHASE A

PHASE A

PHASE B PHASE B

PHASE B

PHASE C PHASE C

PHASE C

GROUND GROUND

GROUND

50:0.025 50:0.025

50:0.025

CONTROLPOWERN L

START STOP

GENERAL ALARM

CONTROLPOWER

232425

NO

NO

NO

NO

IN

IN

IN

IN

IN

COM

COM

COM

COM

COM

COM

COM

COM

COM

NC

NC

NC

NC

262728293031323334

43384439454046414742

SETPOINTACCESS

ACCESSKEY SWITCH

EMERGENCYRESTART

EMERGENCYRESTART

EXTERNALRESET

EXTERNALRESET

OPTION 1OPTION 1

OPTION 2OPTION 2

S1

S2

S3

S4

S5

SW

ITC

H IN

PU

TS

OU

TP

UT

RE

LAY

S

RELAY #1TRIP

RELAY #2ALARM

RELAY #3AUXILIARY

RELAY #4SERVICE

CURRENT INPUTS

239MotorProtection Relay

13 14 36 37SAFETY

GROUNDFILTER

GROUNDL

+N

-

RS485 +

RS485 -

485 GROUNDSE

RIA

L

RT

D#1

RT

D#2

RT

D#3

RT

D T

EM

PE

RA

TU

RE

SE

NS

ING

AN

ALO

GO

UT

0-1m

A

4-20

mA

151617

181920SHIELD

USE SHIELDED TWISTEDPAIR WIRE

RS485

THERMALCAPACITY

THERMISTORIN+

COM

2122

4849505152

SHIELD

HOT

COMP

RET

HOT

5354555657

COMP

RET

HOT

COMP

RET

STATORTHERMISTOR

STATORRTD

STATOR/BEARING RTD

STATOR/BEARING RTD

USE SHIELDED WIRE

819829B7.CDR819751B5.DWG

NOTES:

1) 3)

4)2)

RELAY CONTACT STATE SHOWN WITHCONTROL POWER NOT APPLIED.

SHIELD TERMINALS ARE INTERNALLYCONNECTED TO SAFETY GROUNDTERMINAL 13

RTD TEMPERATURE SENSINGAND ANALOG OUTPUT OPTIONAL

RELAY FACTORY DEFAULTS:TRIP, ALARM, AUXILIARY: SERVICE:

NON-FAILSAFEFAILSAFE

CCGE Multilin



189

7

APPROVALSManufactured under an ISO9001 registered systemUL: Recognized under E83849CSA: Approved under LR41286

INSTALLATIONWarning: Hazard may result if the product is

not used for its intended purpose.Ventilation requirements: NoneCleaning requirements: None

PACKAGINGShipping box: 8.5" L x 6" H x 6" D

(215 mm x 152 mm x 152 mm)Ship weight: 5 lbs (2.3 kg)

TYPE TESTSInsulation resistance: IEC 255-5 500 VDCTransients: ANSI C37.90.1 oscillatory 2.5 kV/1 MHz

ANSI C37.90.1 fast rise 5 kV/10 nsOntario Hydro A-28M-82IEC 255-4 impulse / high frequency disturbance class III level

Impulse test: IEC 255-5 0.5 J 5 kVRFI: 50 MHz/15 W transmitterEMI: C37.90.2 electromagnetic interference

@ 150 MHz and 450 MHz, 10 V/mStatic: IEC 801-2 static dischargeEnvironment: IEC 68-2-38 temperature/humidity cycleDust/moisture: NEMA 12/IP53Dielectric strength: 2.0 kVAC for 1 min to relays, CTs,

power supplyTemperature: -10° C to 60° C ambient

ENVIRONMENTALTemperature range:

Operating: 0° C to 60° C Storage: -40° C to 70° C ambient

Humidity: 95% non-condensingPollution degree: 2Overvoltage category: 2IP class: 40Insulation voltage: 300 VNOTE: LCD contrast impaired below -20° C

FUSE TYPE/RATING5 x 20 mm, 2.5 A, 250 VSlow blow, high breaking capacity

PRODUCTION TESTS

Dielectric strength: 1.836 kVAC for 1 sec to relays, CTs, power supply

OUTPUTSANALOG OUTPUT (OPTION)

PROGRAMMABLEOUTPUT 0 – 1 mA 0 – 20 mA 4 – 20 mAMAX LOAD 2400 Ω 600 Ω 600 ΩMAX OUTPUT 1.1 mA 21 mA 21 mA

Accuracy: ±2% of full scale readingIsolation: 36 VDC isolated, active sourceOUTPUT RELAYS

VOLTAGE MAKE/CARRY MAKE/CARRY BREAKCONTINUOUS 0.2 SEC

DC Resistive 30 VDC 10 A 30 A 10 A125 VDC 10 A 30 A 0.5 A250 VDC 10 A 30 A 0.3 A

DC Inductive 30 VDC 10 A 30 A 5 A125 VDC 10 A 30 A 0.25 A

(L/R = 7 ms) 250 VDC 10 A 30 A 0.15 AAC Resistive 120 VAC 10 A 30 A 10 A

250 VAC 10 A 30 A 10 AAC Inductive 120 VAC 10 A 30 A 10 APF = 0.4 250 VAC 10 A 30 A 10 AConfiguration: Form C NO/NCContact Material: Silver Alloy

COMMUNICATIONSType: RS485 2 wire, half duplex, isolatedBaud rate: 1200 – 19,200 bpsProtocol: ModBus® RTUFunctions: Read/write setpoints, read actual values,

execute commands

POWER SUPPLYInput: 90 – 300 VDC or 70 – 265 VAC, 50 / 60 HzPower: 10 VA (nominal), 20 VA (max)Holdup:

Non-failsafe trip: 200 msFailsafe trip: 100 ms

both times at 120 VAC / 125 VDCNote: It is recommended that all 239 relays be powered up atleast once per year to avoid deterioration of elecrolytic capaci-tors in the power supply.

INPUTSSWITCH INPUTSType: Dry contactsOutput: 29 VDC, 10 mA (pulsed)Duration: 100 ms minimumCT INPUTS

CT INPUT BURDEN(A) (VA) (Ω)1 0.009 0.01

Phase CT (1 A) 5 0.2 0.0120 3.5 0.015 0.04 0.002

Phase CT (5 A) 25 0.9 0.002100 16 0.0025 0.04 0.002

Ground CT (5 A) 25 1.1 0.002100 17 0.002

0.025 0.07 116Ground CT (50:0.025) 0.1 1.19 119

0.5 30.5 122

WITHSTAND1 SEC x CT 5 SEC x CT CONTINUOUS x CT

Phase CT (1 A) 100 40 3Phase CT (5 A) 100 40 3Ground CT (5 A) 100 40 3

50:0.025 GROUND INPUT WITHSTAND

Continuous 150 mAMaximum 12 A for 3 cycles

50:0.025 input can be driven by a 50:0.025 CT.

METERINGPHASE CURRENT INPUTSConversion: True RMS, 16 samples/cycleCT Input: 1 A and 5 A secondaryRange: 0.1 to 11 x phase CT primary Frequency: 20 – 300 HzAccuracy: ±2% of full scaleGROUND CURRENT INPUTSConversion: True RMS, 16 samples/cycleCT input: 5 A secondary and 50:0.025Range: 0.03 to 1.4 x CT primary (5 A CT)

0.05 to 16.0 A (50:0.025 CT)Frequency: 20 – 300 HzAccuracy:

5A CT: ±2% of full scale (5 A CT)50:0.025 CT: ±0.03 A (0 – 0.49 A)

±0.07 A (0.50 – 3.99 A)±0.20A (4.00 – 16.00 A)

PROTECTIONOVERLOAD CURVES TRIP TIME Curves: 15 curves, fixed shapeOverload pickup inhibit:

1.0 – 5.0 x FLCPickup level: 1 – 1500 AAccuracy:

Pickup: ±1% of displayed valueTime: ±2% of trip time or ±1 sec

whichever is greater

SHORT CIRCUIT AND GROUND TRIPGround trip level: 0.05 – 15 A (50:0.025 CT)

3 – 100% (5 A CT)S/C trip level: 1 – 11 x CT PRI/OFFIntentional delay: INST. or 10 ms to 60000 ms programmableInstantaneous: 20 – 45 ms*Total delay: Instantaneous + intentional*trip time accuracy guaranteed if current >1.4 x trip level setting

BREAKER FAILURE TIMINGDelay: INST. or 10 ms to 60000 ms programmableInstantaneous: 20 – 45 ms*Total delay: Instantaneous + intentional*trip time accuracy guaranteed if current >1.4 x trip level setting

START PROTECTIONThermal: Separate start and run protectionActivation: Inrush 3 phase current increases from

<5% to >101% FLC in 1 secDeactivation: Current drops to <100% FLC

motor running if current >5% FLCLocked rotor: 0.5 – 11.0 x FLCSafe stall time: 1.0 – 600.0 sec

THERMAL MODELINGThermal capacity: Separate start/run, exponential cool downCool rate:

Stop: 1 – 5000 min programmableRun: 50% of stopped cool time

Hot/cold: 50 – 100%, hot after 15 min runningLockout: 1 – 5000 min programmable

±20% power on or off

UNBALANCERange: 5 – 100% / OFFAccuracy: ±2%Delay: 0 – 60 sec

Im - IavCalculation: if Iav ≥ IFLC UB% = |______| x 100Iav

Im - Iavif Iav < IFLC UB% = |______| x 100IFLC

where: Iav = average phase currentIm = current in phase with maximum

deviation from IavIFLC = full load current setting

UNDERCURRENTRange: 5 – 100% FLC / OFFDelay: 0 – 250 sec

RTDS (OPTION)Inputs: 3 RTDs, stator/bearing programmableType: 100 Pt (DIN 43760), 100 Ni, 120 Ni, 10 Cu

programmableRange: -40 to 200° C/ -40 to 400° FTrip/alarm range: 0 to 200° C/ 0 to 400° FDead band: 2° C/ 4° FAccuracy: ±2° C/ 4° FLead Resistance: Pt or Ni RTD: 25 Ω max

Cu RTD: 3 Ω max3-wire lead resistance compensation

THERMISTORType: PTC or NTC programmableHot resistance: 100 – 30,000 ΩCold resistance: 100 – 30,000 ΩDelay: 2 secAccuracy: ±5% or 100 Ω (whichever is greater)





190

7


239 * *239 Basic unit

RTD 3 RTDs: stator/bearing; programmable type: platinum, nickel, copper AN Single isolated, analog output: 0 – 1, 0 – 20, 4 – 20 mA

Programmable output parameters: thermal capacity, % full load, phase current, RTD1,RTD2, RTD3 temperature

Accessories

239PC supplied freePhase and ground CTsEmergency restart keyswitch ERSW RS485 terminating networkRS232 to RS485 convertor (required to interface a computer to the relay)2.25" collar for limited depth mounting (1009-0068)

Modifications

MOD 501: 20 – 60 VDC/20 – 48 VAC control power MOD 502: Conformal coatingMOD 504: Removable terminal blocksMOD 505: Enhanced start protectionMOD 506: Custom (programmable) overload curveMOD 509: Directional ground sensing with 120 VAC polarizing voltageMOD 512: 1 A ground inputMOD 513: Class 1 Div 2 operationMOD 517: Australian mines approval

Ordering


Faster ordersFaster ordersvia the webvia the web

0.81"(21)

4.00"(102)

SIDE VIEW REAR VIEW PANEL CUTOUT REDUCED DEPTH COLLAR

SIDE VIEW

REDUCED DEPTH COLLAR

REAR VIEW

REDUCED DEPTH COLLAR

PANEL CUTOUT

4.51"(115) 4.19"

(107)0.16"

(4)

1.40

"(3

6)4.

08"

(104

)6.

88"

(175

)

7.72

"(1

96)

Inches(mm)

4 x 0.08"R(2)

819752AJ.DWG

5.18"(132)

1.75"(45)

3.06"(78)

COLLAR

0.50

"(1

3)1.

96"

(50)

6.88

"(1

75)

5.88

"(1

50)

3.92

"(1

00)

PANELPANEL 8 x 0.08"R(2)

CUT-OUT

Dimensions on both sides of thebezel are not the same

7.17

"(1

82)

0.45"(11)

4.85"(123)0.27"

(7)

4.38"(111) 4.19"

(107)

Dimensions


191

7

Intelligent MCC Controller


Reduces MCC, field wiring

Replaces timers, relays, protectivedevices, meters, panel indicators

Panel mount with or without display andchassis mounting available

Applications

Low voltage motor control centers

Integrated process and electrical control



Overload, phase unbalance, contactorfailure, ground fault, hot windingthermistor, undercurrent/underpower

Locked rotor/mechanical jam

Undervoltage auto restart

Two contactor and two programmableoutputs


Phase current, ground current, thermalcapacity, analog input, power

Trip recording and maintenanceinformation

One analog, six fixed and 10 programmable inputs

User Interfaces

URPC functionality

RS485 port

Integrated process and electrical control with

protection for low voltage motors.

GE Multilin

Protection andControlThe MM2 is available with a vari-ety of advanced protection andcontrol features depending onthe model ordered. This isoutlined in the Model Table onpage 198.

Overload

An overload trip occurs when thethermal capacity value equals100%. Thermal capacity used iscalculated from accumulated I2tvalue and chosen overloadcurves. True RMS current sensingensures correct response to theheating effect of harmonics. Oneof 12 different I2t time overcurrentoverload curves may be selectedfrom eight standard curves andfour NEMA compatible curves.

Of the 12 overload curves available, four areNEMA compatible time/current overload curves.

Phase Unbalance

The MM2 monitors the percent-age unbalance in the motorphase currents. If a phase currentunbalance of greater than 15%exists for more than five secondsan alarm is generated. If a phasecurrent unbalance of greater than30% exists for more than fiveseconds a trip occurs.

Locked/Stalled Rotor

To help prevent damage tomechanical equipment such aspumps or fans, the MM2 will tripwhen the running current exceedsthe stalled rotor trip level after theprogrammed time delay. Thisfeature may be set to ‘OFF’ ifdesired, and it is disabled duringthe inrush of motor starting.

Ground Fault

The ground fault level is measuredas a percentage of the CT primary.Ground overcurrent can be detectedeither from the residual connectionof the phase CTs or from the zerosequence CT. A delay time is set toprevent false alarms from momen-tary surges. Both a ground faultalarm and trip are provided. Thealarm can be set below the trip levelto provide an early warning of insu-lation breakdown.

Overtemperature

An input from motor windingthermistors is available. TheMM2 can accept both positivetemperature coefficient (PTC) andnegative temperature coefficient

(NTC) sensors. A thermistor levelcan be selected for both alarmand trip.

Cooling Time

After an overload trip, the ther-mal capacity value decreasesexponentially to model the motorcooling characteristic. An over-load trip can be reset when thethermal capacity value decreasesto 15%. A stopped motor coolingtime can be set to determine howlong it takes for a stopped motorto reach steady state ambienttemperature from its maximumallowable temperature.

Undercurrent/Underpower

Both undercurrent and underpoweralarms and trips are provided withtime delays. Protection againstfailed shearpin or loss of pumpflow, which may result in only asmall change in current, is providedby the underpower alarm.

Contactor Failure

The MM2 monitors the contactorwhile performing start and stopcommands. If the contactor does


MM2 Intelligent MCC Controller

192

7


807621B9.dwg

480 VOLT BUS

FUSE

CONTACTOR

PHASE PT

PHASE CT

GROUND CT

WINDING

RS485 REMOTECOMMUNICATION1200-19K2 BAUD

THERMISTOR

THERMISTOR

MOTORLOAD

49

51G

51 49

59 27

37 46

CONTACTOR A(FORWARD/WYE)

CONTACTOR B(REVERSE/DELTA)

AUX 1RELAY

AUX 2RELAY

CONTROLINPUTS4 - 20mAINPUTMOTOR

MANAGER 2

PROCESSPLC OR

TRANSDUCER

52Standard Protection49/51 overload46 phase unbalance

(single-phase)— welded/open contactorOption 2 Enhancement50G/51G ground fault48 locked rotor/stalled rotor49 hot winding (thermistor)37 undercurrent/underpower27 undervoltage59 overvoltage

DEVICE PROTECTION

100000

10000

1000

100

10

10.1 0.5 1 2 3 4 5 6 7 89 10 20 50 100

807903D4.cdr

TIM

E IN

SEC

ON

DS

MULTIPLE OF PICKUP CURRENT (PER UNIT)

CURVE #CLASS 30

CLASS 20CLASS 15

CLASS 10

not change status an ‘opencontrol circuit’ or ‘welded contac-tor’ alarm is triggered.

Additional Alarms

The MM2 has programmablealarms to warn of a number ofabnormal conditions. These in-clude: acceleration time exceeded,abnormal inverter starter, in-complete start, motor greasing,contactor inspection, motor stoptime, analog input, and processinterlock switch open.

Starters

The MM2 can control a variety ofstarter types using the contactoroutputs. Contactor A is used forfull voltage, non-reversing starters.Contactor A and B are used forreversing, two-speed, autotrans-former, inverter, wye-delta opentransition, slip ring, and part wind-ing starters. Contactors A, B, andone auxiliary output are used forthe reduced voltage wye-deltaclosed transition starter.

Undervoltage Auto Restart

The motor can be automaticallyrestarted after a momentary powerloss when this feature is enabled.When the control voltage dropsbelow the dropout voltage thecontactors are de-energized. The



MM2 can initiate timers to restartselected drives upon the return ofsupply voltage. If control voltage isrestored within the programmedrestart time, the motor will berestarted immediately. If thecontrol voltage takes longer to berestored, the MM2 can beprogrammed to attempt a restartafter a programmed time delay.

Outputs

The MM2 has one or two contac-tors (A and B). There are also twoauxiliary programmable outputrelays available on the MM2,which can be assigned to any oneof 31 functions.

Switched Inputs

The MM2 has up to six fixedcontrol inputs. These are used forstart A and B, stop, local isolator,and contactor A and B status. TheMM2 also has up to 10 program-mable switch inputs. Each inputcan have one of 33 interlock func-tions assigned to it. A functioncan be assigned to one interlockinput only.

Analog Input

The analog input can be scaled touser defined values. High andlow alarm and trip setpoints arerecorded with time delays.

Monitoring andMeteringThe MM2 offers advanced moni-toring and metering whichincludes:

Metering

The MM2 meters and displays: RMS current of each phase Ground fault leakage current Motor load as a % of full load

current Thermal capacity used (%) accord-

ing to I2t history and chosenoverload curve; hot/cold ratio isused to model heating whenrunning below full motor current

% unbalance Power (kW) Energy (kWh) Voltage Analog input

Trip Record

When the MM2 issues a tripcommand a record is generatedwhich includes the cause andpre-trip actual values.

Statistics and Maintenance

The MM2 records statistical dataabout relay and motor operation,allowing the user to set the inter-val at which routine maintenance

193

7

CONVENTIONAL MCC

STOPPED RUNNING TRIPPED

CONTACTOR CONTACTOR

TRIPSTOP

CONTACTOR

REPEAT FOREACH STARTER

120/240VAC

MULTIWIRECONTROL CABLE

SUPERVISORY CONTROL SYSTEM

MCC WITH MOTOR MANAGER 2

CONTACTOR

MOTOR MANAGER 2

DIGITALCONTROL/MONITORRS485TWISTEDPAIR

TWO WIRECONTROLCABLE

SUPERVISORY CONTROL SYSTEM

FIELDSTOP

807680A7.cdr

120/240VAC

TO OTHERSTARTERS

INMCC

STOP

REM

OTE

CO

NTR

OL

REPLACED BY

STOP START

O/L TRIPGROUND STALL THERMISTOR U/C ACCEL

STOP

STOP

SETPOINT

ACTUAL

RESET

STORE

START A

START BMANUAL

AUTOCONTACTOR A

CONTACTOR B

AUX 1

AUX 2

RUNNING

STOPPED

TRIPPED

ALARM

FAULT

MESSAGE

VALUE

LO

CA

LM

CC

MM2Motor Manager 2

One MM2 is typically mounted in each starter of a motorcontrol center.Cost Effective MCC Wiring with MM2.

tasks should be performed. Whenthe times are exceeded an alarmis generated. These include:

Motor greasing interval: numberof hours between bearing lubri-cation

Contactor inspection: numberof starts after which contactorcontacts must be inspected forwear

Maximum motor stopped time:the maximum number of hoursthe motor can be left shut down

User InterfacesThe user can communicate withthe MM2 through a variety ofinterfaces:

Display and Control Keys

The panel mount model has alarge user STOP key which stopsthe motor. When both options areordered with the MM2, the panelmount model may be orderedwith a two-line 40 characterdisplay and additional controlkeys. The display and keypad canbe used for local programming,showing information on alarmsand trips, and displaying moni-toring and metering values.

Indicator LEDs

The panel mount MM2 has ninestatus LEDs. The display modelhas two additional LEDs whichindicate auto mode or manualcontrol mode.

Communications

The MM2 uses a ModBus® RTURS485 connection for communica-tion. Up to 32 MM2s can bedaisy-chained together on a singlecommunication channel. The MM2supports operation at 1200 to19,200 bps. A RS232/485 convertermodule may be used to connect apersonal computer to the MM2.

Software

The MM2 is provided with aWindows®-based communica-tions program called MM2PC. Itallows access to all the featuresof the MM2 with easy to use,pull-down menus. Using thisprogram it is possible to:

Program or modify setpoints Load or save setpoints from or

to a disk Read actual values from the MM2 Monitor status Read pre-trip data and trip record Display dynamic trending of

actual values Get help on any topic Print the instruction manual from

disk

URPC Program

The URPC program allows theuser to create single line diagramsfor substation and system moni-toring schemes. Additionally,annunciator panel viewing, meter-ing, and simple settings changescan also be performed using theprogram. With the URPC programthe user can access multipleMM2s or different devices formetering in real time.

Models

Mounting Configurations

The MM2 can be ordered ineither chassis mount or panelmount with display.

The chassis mount model is the “black box”version of the MM2. It is mounted inside themotor control center (MCC).

The chassis mount and panelmount without display modelscome with all the standardfeatures and may be ordered withone or both of the option pack-ages. Setpoints are loadedthrough the RS485 port.

The panel mount with display model is the“Top of the Line” MM2.

The panel mount with displaymodel may be ordered when bothoption packages are ordered. It ismounted on the front panel of theMCC with its two by 20 alphanu-meric display, full keypad, and 11status LEDs exposed to the opera-tor for complete local viewing andsetpoint programming. Thesetpoints can also be loaded intothe relay through the RS485communications port.

Option Packages

Option package 1 increases thecontrol and diagnostic featuresavailable. It includes:

Process control and processinputs

Undervoltage auto restart Diagnostics including alarms, pre-

trip data, and historical statisticsabout the use and performance ofthe motor and drive

Option package 2 increases theprotection features and inputoptions. It includes:

Second contactor control, includ-ing two more control inputs

Single-phase VT input used tocalculate and display the kW andkWh absorbed by the drive

Enhanced protection includingfive more protection features

Motor winding thermistor input



194

7



195

7

Features

STATUS INDICATORS:RUNNING: Contactor is energized and motor isrunning.STOPPED: Contactor is not energized and motor isnot running.TRIPPED: Contactor is not energized. Motor is notrunning. The MM2 has tripped the motor due to afault. Normally a cause of trip message will bedisplayed.ALARM: One or more alarm conditions are present.Normally a cause of alarm message will bedisplayed.FAULT: An internal fault or abnormal condition hasbeen detected. The MM2 may need to bereplaced or serviced.

CONTROL POWER120/240 VAC supplyvoltage selector switchand fuse access door.

GROUND CT INPUT5 amp or 50:0.025 ground faultinput for residually connectedphase CTs or separate corebalance (zero sequence) CT.

Rear View

Front View

DISPLAY:2 line, 40 character illuminated displaycommunicates all messages in simpleEnglish for easy interpretation by usersunfamiliar with unit.

CONTROL KEYS:AUTO: Selects operation of start viacommunication port.MANUAL: Selectsmanual operation ofmotor using start key.START A: Energizecontactor A.START B: Energizecontactor B.STOP: De-energizecontactors.

PROGRAM KEYS:ACTUAL VALUES: Press to enter actual values mode to display actual motor values such ascurrent, ground leakage, thermal capacity.SETPOINTS: Press to enter setpoint mode to alter or examine setpoints.STORE: Save a newly entered setpoint.RESET: Reset the MM2 after a trip.MESSAGE: Move to the desired setpoint or actual value message.VALUE: Increment or decrement currently displayed setpoint value.

SUPPLY VOLTAGErequired to power theMM2 .

SWITCH INPUTSOpto-isolated 120 VAC live inputs for various interlock functions. Theinterlock inputs are fully programmable and can be assigned to suchfunctions as setpoint access, plant interlock, test, and various others.

COMMUNICATIONSRS485 2 wire serial communication port operates at1200 – 19,200 bps for remote commands, monitoringand setpoint store. ModBus® RTU protocol.

VOLTAGE INPUTPhase A voltage input forvoltage and powermonitoring.

Ground safety andsurge.

THERMISTORNTC or PTC thermistor inputfor hot winding detection.

ANALOG INPUT4 – 20mA input for processcontrol monitoring/alarming/tripping.

4 RELAYS Contactor A: direct on

line/forward/wye Contactor B: reverse/delta User programmable relay

(AUX 1) User programmable relay

(AUX 2)

PHASE CT INPUTS3 isolated phase CTinputs that accept 1 amp or 5 amp CT.

RELAY INDICATORS:RELAY A: Contactor A energized.RELAY B: Contactor B energized.AUX 1: User programmable relay 1 energized.AUX 2: User programmable relay 2 energized.



196

7

Typical Wiring

807601DC.dwg

RESIDUAL GROUND CONNECTION TWO PHASE CT CONNECTION DIRECT CONNECTION

CTPHASE B

CTPHASE A

CTPHASE ACT

PHASE CCT

PHASE C

CORE BALANCE ( ZERO SEQUENCE )CT

PHASE ACT

PHASE BCT

PHASE CCT

GROUND

ISOLATORSWITCH CONTACTOR

A

A

A

L1

L2

L3

480V

480VABC

A

B

C 110V OR 120VONLY

Vab VT

L1

L2

L3MOTOR

15 15A

PHASE A CT

1A COM

2 3 45A

PHASE B CT

1A COM

5 6 75A

PHASE C CT

1A COM

8 9 105A

GROUND CT

50:0.025 COM

11 1216

VT

VT

C

OM

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

INTERLOCKINPUT 1

INTERLOCKINPUT 2

INTERLOCKINPUT 3

INTERLOCKINPUT 4

INTERLOCKINPUT 5

INTERLOCKINPUT 6

INTERLOCKINPUT 7

INTERLOCKINPUT 8

INTERLOCKINPUT 9

INTERLOCKINPUT 10

STOP

START A

START B

CONTACTORA STATUS NO

CONTACTORB STATUS NO

SWITCH COMMON

SWITCH COMMON

ISOLATORSTATUS NO

PRO

GR

AM

MA

BLE

SW

ITC

H I

NPU

TSFI

XED

SW

ITC

H I

NPU

TS12

0VLI

VE

19

20

38

39

40

17

18

ANALOG IN

ANALOG IN

SERIAL GROUND

SERIAL 485

SERIAL 485

THERMISTOR

THERMISTOR

RS485

STATORTHERMISTOR

OPTION 1

OPTION 2

STOP

START

A

*

*

GROUNDCONTROLVOLTAGE CONTACTOR A CONTACTOR B AUX 1 AUX 2

GNDSAFETY

GNDSURGE

13 14 36 37 34 35 32 33 26 27 28 29 30 31

L NCOM NO COM NO 1 NC 1 NO1 COM 2 NC 2 NO2 COM

23 24 21 2225

NC NOCOM

COIL

MCC GROUND BUS

AC CONTROL VOLTAGE 120 / 240 VAC

L

N

CO

NTA

CT

OR

A NOTES:

1 ) RELAY CONTACT STATE SHOWN WITH CONTROLPOWER NOT APPLIED.

2 ) DRAWING SHOWN WITH ALL OPTIONS. SEE ORDERCODE TO DETERMINE TERMINALS INSTALLED.

3 ) TERMINALS MARKED WITH “ * ” MUST BE CONNECTEDBEFORE MOTOR CAN BE STARTED.

4 ) DIRECT CONNECTION WITH NO CTs CAN BE USEDFOR MOTOR FULL LOAD CURRENT BELOW 10 AMPS( TYPICALLY LESS THAN 10 HP ). NOTE: CT TERMINALSRATED FOR 600V.

1 2 3 4 5 6 7 8 9 10 11 12

5A 1A COM 5A 1A COM 5A 1A COM 5A 50:0.025 COM

PHASE A CT PHASE B CT PHASE C CT GROUND CT

1 2 3 4 5 6 7 8 9 10 11 12

5A 1A COM 5A 1A COM 5A 1A COM 5A 50:0.025 COM

PHASE A CT PHASE B CT PHASE C CT GROUND CT

1 2 3 4 5 6 7 8 9

5A 1A COM 5A 1A COM 5A 1A COM

PHASE A CT PHASE B CT PHASE C CT

MM2 Motor Manager 2

GE Multilin



197

7

CERTIFICATION

: Conforms to IEC 947-1, IEC 1010-1CSA: Approved file no. LR41286UL: Recognized under E83849Quality assurance system: Registered by QMI to CSA

CAN3.Z299.3-1985 and ISO 9001-1994

INSTALLATION

WARNING: HAZARD may result if the productis not used for its intended purpose

Ventilation requirements: NoneCleaning requirements: None

FUSE TYPE/RATING

0.5 A 250 VFast blow, high breaking capacity

PACKAGING

Max weight: 4 lbs (1.8 kg)Shipping dimensions: 8.3" x 5.625" x 5.8"

(211 mm x 143 mm x 147 mm)

TYPE TESTS

CSA: Approved file no. LR41286UL: Recognized file no. E83849Transients: ANSI/IEEE C37.90.1 oscillatory/

fast risetime transientsIEC 801-4 electrical fast transient/burstrequirements

Impulse: IEC 255-5 5 kV impulse voltage testRFI: 150 MHz, 450 MHz 5 W handheld

transmitter @ 25 cmStatic: IEC 801-2 electrostatic dischargeHipot: 1500 V, 1 min all input >30 V

ENVIRONMENTAL

Pollution degree: 2Overvoltage category: 2Insulation voltage: 300 VOperating temperature range: 0° C to 60° CDust and moisture rating: NEMA Type 12+12KIP Class: IEC 529-IP53

COMMUNICATIONS

Type: RS485 2 wire, half duplexBaud rate: 1,200 – 19,200 bpsProtocol: ModBus® RTUFunctions: Read/write setpoints, read actual values,

execute commands, read coil status,read device status, loopback test

POWER SUPPLY

SUPPLY VOLTAGEAC nominal: 120 VAC, range 80 – 135 VAC

240 VAC, range 150 – 270 VAC*Frequency: 50/60 HzPower consumption: 25 VA (Maximum)

7 VA (Nominal)*CE units limited to 250 V unless external fuse rated to 300 V is used.

INPUTS

THERMISTOR INPUTSSensor types: positive temperature coefficient PTC

RHOT=100 – 30,000 Ωnegative temperature coefficient NTCRHOT=100 – 30,000 Ω

Delay: 1 secAccuracy: ±5% or 100 Ω (whichever is greater)ANALOG INPUTRange: 4 – 20 mAAccuracy: ±1% full scaleAlarm: programmable 4 – 20 mATrip: programmable 4 – 20 mACT INPUTS

CT INPUT BURDEN(A) (VA) (Ω)1 0.009 0.01

Phase CT (1 A) 5 0.2 0.0120 3.5 0.015 0.04 0.002

Phase CT (5 A) 25 0.9 0.002100 16 0.0025 0.04 0.002

Ground CT (5 A) 25 1.1 0.002100 17 0.002

0.025 0.07 116Ground CT (50:0.025) 0.1 1.19 119

0.5 30.5 122

WITHSTAND1 SEC x CT 5 SEC x CT CONTINUOUS x CT

Phase CT (1 A) 100 40 3Phase CT (5 A) 100 40 3Ground CT (5 A) 100 40 3

50:0.025 GROUND INPUT WITHSTANDContinuous 150 mAMaximum 12 A for 3 cycles50:0.025 input can be driven by a GE Multilin 50:0.025 CT

OUTPUTS

RELAY CONTACTS

VOLTAGE MM2 CONTACTOR A & B AND AUX 2 OUTPUT RELAYSVOLTAGE MAKE/CARRY MAKE/CARRY BREAK

CONTINUOUS 0.2 sec30 VDC 10 A 30 A 10 A

RESISTIVE 125 VDC 10 A 30 A 0.5 A250 VDC 10 A 30 A 0.3 A30 VDC 10 A 30 A 5 A

INDUCTIVE 125 VDC 10 A 30 A 0.25 A(L/R = 7ms) 250 VDC 10 A 30 A 0.15 ARESISTIVE 120 VAC 10 A 30 A 10 A

250 VAC 10 A 30 A 10 AINDUCTIVE 120 VAC 10 A 30 A 10 A(PF = 0.4) 225 VAC 10 A 30 A 8 ACONFIGURATION CONTACTOR A & B – FORM A

AUX RELAY 2 – FORM CCONTACT MATERIAL SILVER ALLOY (AgCdO)MAX OPERATING VOLTAGE 280 VAC, 250 VDCMINIMUM PERMISSIBLE LOAD 5 VDC, 100 mA

MM2 AUX 1 OUTPUT RELAYVOLTAGE MAKE/CARRY MAKE/CARRY BREAK

0.2 secRESISTIVE 30 VDC 5 A 15 A 5 A

125 VDC 5 A 15 A 0.25 AINDUCTIVE 30 VDC 5 A 15 A 2.5 A(L/R = 7ms) 125 VDC 5 A 15 A 0.1 ARESISTIVE 120 VAC 5 A 15 A 5 A

250 VAC 5 A 15 A 5 AINDUCTIVE 120 VAC 5 A 15 A 5 A(PF = 0.4) 225 VAC 5 A 15 A 3 ACONFIGURATION AUX RELAY 1 — DUAL FORM CCONTACT MATERIAL SILVER ALLOY (AgCdO)MAX OPERATING VOLTAGE 280 VAC, 125 VDC

METERING

PHASE CURRENT INPUTSConversion: True RMS, sample time 1.67 msRange: 0.1 – 8 x phase CT primary amps setpoint Full scale: 8 x phase CT primary amps setpointAccuracy: ±2% of Phase CT primary amps setpoint

or±2% of reading, whichever is greater

GROUND FAULT CURRENT INPUTConversion: True RMS, sample time 1.67 msRange: 0.1 to 1.0 x G/F CT primary amps setpoint

(5 A secondary CT)0.5 to 15.0 amps (50:0.025 CT)

Full scale: 1.5 x G/F CT primary amps setpoint(5 A secondary CT)15 A (50:0.025 CT)

Accuracy: ±4% of G/F CT primary amps setpoint(5 A secondary CT)±0.3 A (50:0.025) CT

MONITORING

VOLTAGE INPUT/POWER READINGConversion: True RMS, sample time 1.67 msVoltage full scale: 1.5 x VT primaryVoltage accuracy: ±2% of VT primary or

±2% of reading (whichever is greater)Power accuracy: ±5% of nominal or

±5% of reading (whichever is greater)Input voltage: Nominal: 120 VAC or 110 VAC

Max: 150 VACVT burden: 0.01 VA

ACCELERATION TIMERange: 0.5 – 125 sec, or OFFAccuracy: ±0.5 sec

THERMAL COOLING TIMESRange: 5 – 1080 min when motor stopped

50% of motor stopped value when motor running

Accuracy: ±1 min

STALLED ROTORRange: 1.15 to 4.50 x FLC, or OFFDelay range: 0.5 to 5 secAccuracy: ±0.5 sec

PROTECTION

OVERLOAD CURVESTrip time: ±200 ms up to 10 secAccuracy: ±2% of trip time over 10 secDetection level: ±1% of primary CT amps

GROUND FAULT TRIP TIMEAccuracy: -0 ms, +50 ms, 0.0 = <50 ms

SINGLE PHASE (PHASE UNBALANCE)Range: Greater than 30% U/B trip, alarm 15% Accuracy: ±2 percentage pointsTrip delay: 5 sec, ±1 secCalculation method: If IAV ≥ IFLC : | IM - IAV | x 100

IAV If IAV < IFLC : | IN - IAV | x 100

IFLCWhere: IAV = average phase currents

IM = current in a phase with maximum deviation from IAV

IFLC = motor full load current setting

UNDERCURRENTRange: 10 – 100% of motor FLC, or OFFDelay range: 1 – 60 secAccuracy: ±1 sec

UNDERVOLTAGE – SUPPLY VOLTAGEUndervoltage: 65% of nominal (120 VAC or 240 VAC)

immediate restart for maximum diptime of 0.1 – 0.5 sec or OFFdelayed restart for maximum dip timeof 0.1 – 10.0 sec/unlimited time

Delay restart range: 0.2 – 300 sec Delay restart accuracy: ±0.2 sec

MM2 Technical Specifications

807629C5.dwg

PANEL MOUNT FRONT VIEW PANEL MOUNT SIDE VIEW PANEL MOUNT CUTOUT CHASSIS MOUNT CUTOUTCHASSIS MOUNT SIDE VIEW

7.36"(187)

1.0"(25)

4.35

"(1

11)

3.95"(100)

0.10"(2.5)PANEL

7.10"(180) 6.90"

(175) 0.35

"(9

)

4.17

"(1

06)

3.47

"(8

8)

2.31

"(5

9)1.15

"(2

9)

8 x 0.078" R(2)

PANEL4.13"(105)

3.47

"(8

8)4.

07"

(103

)

1.73

"(4

4)0.

30"

(7.5

)

7.24"(184)

7.50"(191)0.13"

(3)

6 x 0.218" Dia. HOLES(6)

BASE PLATE PROFILE

Inches(mm)

RUNNING

STOPPED

TRIPPED

ALARM

FAULT

CONTACTOR A

CONTACTOR B

AUX 1

AUX 2

CUTOUT

MM2Motor Manager 2

Dimensions




198

7

MM2 * * * *MM2 Basic unit

PD Panel mount with display *C Chassis mount (black box)

1 Option 1 Process control, 10 process inputs, undervoltage auto restart, diagnostics

2 Option 2 Enhanced protection, power (kW), thermistor, 2nd contactor control,and 2 process inputs

120 Control voltage 120 VAC240 Control voltage 240 VAC

Note:*Only Available when both options are ordered.

Accessories

RS232 TO RS485 CONVERTER box designed for harsh industrial environments5 A PHASE CT: 50, 75, 100, 150, 200, 250, 300, 350, 400, 500, 600, 750, 10001 A PHASE CT: 50, 75, 100, 150, 200, 250, 300, 350, 400, 500, 600, 750, 100050:0.025 GROUND CT for sensitive ground detection on high resistance groundedsystemsCOLLAR for reduced depth mounting

Modifications

MOD601: 240 VAC switch inputs – allows the use of external 240 VAC supply topower switch inputs

MOD602: 24 – 48 VDC switch inputs – allows the use of external 24 – 48 VDCsupply to power switch inputs

MOD603: ESD relay – converts AUX 2 relay into an emergency shutdown relayMOD605: Removable rear terminals – allows terminals 13 – 58 to be unplugged

from the MM2MOD610: Conformal coatingMOD613: 240 VAC VT inputMOD614: VT primary setpoint up to 7200 V and variable overload curve settingMOD615: VT primary setpoint up to 7200 V and backspin timerMOD616: MM2 with remote display

MM2 GuideformSpecificationsFor an electronic version of the MM2guideform specifications, pleasevisit: www.GEindustrial.com/Multilin/specs, fax your request to 905-201-2098 or email to [email protected].

Ordering

Model Table: The MM2 is available in chassis mount or a panel mount model. Both models may be enhanced with two option packages. The panelmount model with display may only be ordered with both options.

Protection overload (49/51) undervoltage auto restart ground fault (50G/51G), rapid tripand Control phase unbalance (46) diagnostics locked/stalled rotor (48)

welded/open contactor overtemperature thermistor (49)undercurrent/underpower (37)overvoltage (59)/undervoltage (27)

Inputs 4 control 2 control2 programmable 8 programmable

1 analog thermistor inputsingle-phase voltage input for kW and kWh

Relays contactor control (A) auxiliary 1 and 2 contactor control (B)

Mounting chassis mount chassis mount chassis mountConfigurations panel mount with display available when both options are ordered

STANDARD OPTION 1 ADDS OPTION 2 ADDS


Documents

VA MVA - GE Grid Solutions · Power Supply; AC/DC AC/DC AC/DC AC/DC AC/DC AC/DC AC CT Inputs 5/1A 5/1A 5/1A 5/1A 5/1A 5/1A 5 Self-Test Failure Contact ... Mechanical Jam