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BC141, BC142, BC142-5 & BC142-6 DC Control

Installation and Operation Manual

07/11 MN704

SCR DC MOTOR CONTROL

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Sa ety Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41. Quick-Start Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1 AC Line Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.2 Ground Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.3 Motor Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.4 Jumper Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.5 AC Line Fusing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61.6 Plug-In Horsepower Resistor and Armature Fuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.7 Trimpot Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.8 Diagnostic LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71.9 Optional Auxiliary Heat Sink (Catalog No. BC143). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.1 Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93. Application In ormation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1 Motor Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.2 Torque Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.3 Acceleration Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.4 Limitation In Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.5 Armature Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.6 Step-Down Trans ormer and AC Line Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

4. Mounting Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155. Wiring Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.1 AC Line Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165.2 Ground Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175.3 Permanent Magnet (PM) Motor Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175.4 Motor Field Connection (Shunt Wound Motors Only). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175.5 Remote Main Speed Potentiometer Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.6 Voltage Following Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Table o Contents

2

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5.7 Enable Circuit Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205.8 Inhibit Circuit Connection . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225.9 DC Tachometer Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

6. Setting Selectable Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256.1 AC Line Input Volage Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256.2 Motor Voltage and DC Tachometer Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

7. AC Line Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268. Plug-In Horsepower Resistor and Armature Fuse Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

8.1 Plug-In Horsepower Resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278.2 Armature Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

9. Trimpot Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 299.1 Acceleration Trimpot (ACCEL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

9.2 Deceleration Trimpot (DECEL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309.3 Minimum Speed Trimpot (MIN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309.4 Maximum Speed Trimpot (MAX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309.5 Current Limit Trimpot (CL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319.6 IR Compensation Trimpot (IR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

10. Diagnostic LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3310.1 Power On (PWR ON) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3310.2 Current Limit (CL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

11. Switching Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3311.1 AC Line Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3311.2 Armature Switching and Dynamic Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

12. Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

3

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SAFETY NOTICES

ELECTRICAL HAZARD WARNING - Statement indicates a potentially hazardous situation.Failure to observe this warning could result in electrical shock or electrocution.

OPERATIONAL HAZARD WARNING - Statement indicates a potentially hazardous situation.Failure to observe this warning could result in serious injury or death.

Note - Additional in ormation that is not critical to the installation or operation.

WARNING! This product should be installed and serviced by a qualifed technician,electrician, or electrical maintenance person amiliar with its operation and thehazards involved. Proper installation, which includes wiring, mounting in properenclosure, using and other over current protection, and grounding can reduce

the chance o electrical shocks, fres, or explosion in this product or productsused with this product, such as electric motors, switches, coils, solenoids, and/or relays. This product is constructed o materials (plastics, metals, carbon,silicon, etc.) which may be a potential hazard. Proper shielding, grounding andfltering o this product can reduce the emission o radio requency inter erence(RFI) which may adversely a ect sensitive electronic equipment.

WARNING! Follow all instructions care ully.

WARNING! R ead all sa ety notices be ore attempting to use this control. Wire control inaccordance with the National Electrical Code requirements and other localcodes that may apply. Fuse each conductor which is not at ground potential.Do not use neutral or grounded conductors.

WARNING! Do not use this drive in an explosive environment. Be sure the control isoperated within its ratings.

WARNING! Disconnect the main power be ore making connections to the control.

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WARNING! I possible, do not adjust trimpots with main power on. I adjustments aremade with the main power applied, an insulated adjustment tool must be usedand sa ety glasses must be worn. High voltage exists in this control.

WARNING! Do not switch the armature in and out o circuit or catastrophic ailure willresult. I armature switching is required or reversing or dynamic braking, useCatalog Nos. BC204, BC200, or BC201.

WARNING! Do not disconnect and reconnect the motor armature with the AC line appliedor catastrophic ailure will occur.

WARNING! The rated AC line voltage (115, 208/230) o the control must match the actualAC line input voltage.

WARNING! Do not earth ground any input terminals.

WARNING! The Enable Circuit is never to be used as a Sa ety Disconnect since it is notail-sa e. Use only the AC line or his purpose.

WARNING! The Inhibit Circuit is never to be used as a Sa ety Disconnect since it is notail-sa e. Use only the AC line or his purpose.

CAUTION! Adjusting the CL above 150% o motor rating can cause overheating and

possibly demagnetization o some PM motors. Consult motor manu acturer.

This product complies with all CE directives pertinent at the time o manu acture.Contact your local Baldor District O ce or Declaration o Con ormity. Installation o aCE approved RFI lter is required. Additional shielded motor cable and/or AC line

cables may be required along with a signal isolator.

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1. QUICK-START INSTRUCTIONRead these simpli ed installation instructions be ore proceeding. These instructions are to be used as are erence only and are not intended to replace the detailed instructions provided herein.

Note: A Plug-In Horsepower Resistor and Armature Fuse must be installed in order or this product tooperate. Fuse holders and uses not supplied with BC142-5.

1.1 AC Line Connection - Wire the AC line to Terminals L1 (Line Fuse)* and L2.Catalog No. BC141 is rated or 115 Volt AC line input only. Catalog No. BC142 is rated or 230 Volt ACline input only. Catalog No. BC142-5 and BC142-6 are rated or 115 Volt AC line input (Jumper J1 in the115 position) and 230 Volt AC line input (Jumper J1 in the 230 position).

Notes: 1. The rated AC line voltage (115, 208/230) o the control must match the actual AC line input vvoltage.

2. I one o the AC line inputs is a neutral (N), wire it to Terminal L2.

1.2 Ground Connection Connect the ground wire (earth) to the control chassis.

1.3 Motor Connection Connect the motor to Terminals A+ (Armature Fuse)* and A-.

1.4 Jumper Settings Jumper J1 (on Catalog No. BC142-5 and BC142-6) and Jumper J2 (all models) havebeen actory set or most applications.* Fuse holders and uses not supplied with BC142-5.

1.5 AC line Fusing * A 25 Amp AC line use is actory installed in the AC Line Fuse Holder. It isrecommended that this use be changed to a 12 Amp use or motors rated 7.5 Amps DC or less.

Fuse each conductor that is not at ground potential.

Fuse Plug-In HorsepowerResitor

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1.6 Plug-In Horsepower Resistor and Armature Fuse * It is required that a Plug-In HorsepowerResistor and Armature Fuse be installed. These are supplied separately in a kit which is based onmotor horsepower and voltage. Select the correct kit in accordance with Table 8-1.

1.7 Trimpot Settings All trimpots have been actory set or most applications. The trimpots may bereadjusted. See Section 9 - Trimpot Adjustments.

1.8 Diagnostic LEDs A ter power has been applied to the control, observe the LEDs to veri y propercontrol operation. See Section 10 - Diagnostic LEDs.

1.9 Optional Auxiliary Heat Sink (Catalog No. BC143) Extends the horsepower rating o the controlto 1.5 HP or controls with 90 Volt DC output and 3 HP or controls with 180 Volt DC output.* Fuse holders and uses not supplied with BC142-5.

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2. INTRODUCTIONThank you or purchasing the BC141, BC142, BC142-5 or BC142-6 ull-wave variable speed DC motorcontrol. The control, with Sur ace Mount (SMT) construction, o ers the user the ultimate in reliability andper ormance at an a ordable price. The controls contain a unique patented super- ast Direct-Fed currentlimit circuit that protects the SCR power bridge against direct shorts 1. The reliability o the control is urther

enhanced with the use o high-surge, 25 Amp SCRs, and AC line and armature using2,3

. The control isdesigned with exclusive Plug-In Horsepower Resistor 3, which eliminates the need or recalibrating IRComp and Current Limit when the control is used on various horsepower motors. In addition, the rating othe control can be extended to 1.5 HP or controls with 90 Volt DC output and 3 HP or controls with 180

Volt DC output, by the use o an Auxiliary Heat Sink 4. Catalog Nos. BC142, BC142-5 and BC142-6 alsoallow operation o 90 Volt DC motors when used on 208/230 Volt AC line input 5.

The versatility o the control is con rmed by its extensive list o standard eatures, such as: selectablearmature or tach eedback and adjustment trimpots or minimum speed, maximum speed, current limit,

IR compensation, and linear acceleration and deceleration. The control includes Auto-Inhibit , whicheliminates surging during rapid AC line switching; pulse trans ormer triggering, which provides coglessoperation at low speed; and superior noise rejection circuitry, which eliminates alse starts and blownSCRs. Enable (normally closed) and Inhibit (normally open) unctions provide electronic switching o controloutput.

The output voltage o the control is a linear unction o the Main Speed Potentiometer setting. In addition,the control can be used in a voltage ollowing mode by supplying an isolated analog input signal toTerminals P2 (+) and P1 (-). The control is compact in size (only 4.30 X 3.64 X 1.25) and easilyreplaces all competitive speed controls. The control is supplied with a actory installed 25 Amp AC line

use, a 5 k Main Speed Potentiometer and QD terminals. All models are UL Listed (USA and Canada) andCE Approved.

Notes:1. Short circuit protected at motor only.2. Baldor Limited Warranty applies.3. Plug-In Horsepower Resistor and Armature Fuse Kit supplied separately (Fuse holders and uses not

supplied with BC142-5).

4. Catalog No. BC143.5. Step-down operation.

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2.1 Standard Features1. Plug-In Horsepower Resistor - Eliminates the need to calibrate the control or IR Compensation

and Current Limit when used on various horsepower motors.

2. Auto-Inhibit - Allows the control to be rapidly switched on and o using the AC line.

3. Inhibit and Enable - Allows the control to be turned on and o using electronic switching.

4. Trimpots - Minimum Speed (MIN), Maximum Speed (MAX), IR Compensation (IR), Current Limit(CL), Acceleration (ACCEL), and Deceleration (DECEL).

5. Jumpers - AC Line Input Voltage Selection J1, (Catalog No. BC142-5 and BC142-6), Motor Voltageand DC Tachometer Selection, J2.

6. Protection Features - MOV transient protection. Short Circuit protected (at motor only).

7. Diagnostic LEDs - Power On (PWR ON) and Current Limit (CL).

8. Catalog No. BC141 operates on 115 Volt AC line input with 90 Volt DC motors.

9. Catalog No. BC142 operates on 230 Volt AC line input with 180 Volt DC motors or 90 Volt DCmotors (step-down). - Jumper Selectable

10. Catalog No. BC142-5 and BC142-6 can operate on 115 Volt AC line input with 90 Volt DC motorsand 230 Volt AC line input with 180 Volt DC motors or 90 Volt DC motors (step-down). - JumperSelectable

11. Armature or DC Tachometer eedback.

12. Built-in AC line and armature using (except BC142-5, supplied without use holders).

13. Main Speed Potentiometer (5k)

14. SMT construction

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Table 2-1 Electrical Ratings

CatalogNumber

AC Line Voltage(15%,

50/60Hz)(Volts AC)

Motor Voltage

(Volts

DC)

Rating without Auxiliary Heat Sink Rating with Auxiliary Heat Sink Field Voltage

(VoltsDC)

(1.13 Amps

Max)

Max. AC Line

Current(RMS Amps)

Max. DCLoad

Current(Avg. Amps)

Max.

Horsepower(HP (kw))

Max. AC Line

Current(RMS Amps)

Max.DC

LoadCurrent

(Avg. Amps)

Max.

Horsepower(HP (kw))

BC141 115 0-90 12 8 .75 (.6) 24 16 1.5 (1.1) 50, 100

BC142 2300-180 12 8 1.5 (1.1) 24 16 3 (2.3) 100, 200

0-90* 12 8 .75 (.6) 24 16 1.5 (1.1) 100

BC142-5

115 0-90 9 6 .75 (.6) 18 12 1.5 (1.1) 50, 100

2300-180 9 6 1.5 (1.1) 18 12 3 (2.3) 100, 2000-90* 9 6 .75 (.6) 18 12 1.5 (1.1) 100

BC142-6115 0-90 12 8 .75 (.6) 24 16 1.5 (1.1) 50, 100

2300-180 12 8 1.5 (1.1) 24 16 3 (2.3) 100, 200

0-90* 12 8 .75 (.6) 24 16 1.5 (1.1) 100

* Step-down operation.

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Table 2-2 General Per ormance Specifcations

Description Specifcation FactorySetting

Speed Range (Ratio) 50:1

Armature Feedback Load Regulation (0 - Full Load, 50:1 Speed Range) (%Base Speed) 1

Tachometer Feedback Load Regulation (0 - Full Load, 50:1 Speed Range) (%Set Speed) 1

Line Voltage Regulation (at Full Load, 10% Line Variation) (% Speed) 0.5

Control Linearity (% Speed vs. Dial Rotation) 2

Acceleration (ACCEL) Trimpot Range (Seconds) 0.2 10 2Deceleration (DECEL) Trimpot Range (Seconds) 0.2 10 2

Maximum Speed (MAX) Trimpot Range (% Base Speed) 50 110 100

Minimum Speed (MIN) Trimpot Range (% Base Speed) 0 30 0

Current Limit (CL) Trimpot Range (% Full Load) 0 200 150

IR Compensation (IR) Trimpot Range (at Speci ed Full Load @ 90, 180 Volts DCOutput) (Volts DC) 0 24, 48 3, 6

Maximum Operating Ambient Temperature at Full Load - C / F 40 / 104

Notes:1. Step-down operation: motor may have reduced brush li e.2. Per ormance is or SCR rated permanent magnet motors only. Lower per ormance can be expected with other

motor types. Factory setting is or 3% load regulation.

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Figure 2-1 Control Layout & General Connection Diagram (Catalog No. BC142-6 Shown)

Motor ArmatureMotor Field(Shunt Motors Only)

DC Tac h-Generator(Set J2 to "T" P osition)

Main Speed PotentiometerAC LineInput (Front View)

Inhibit S witch

(Close to Stop)(Open to Run)

Enable Switch

(Open to Stop)(Close to Run)

Line Fuse25 Amp*

Factory Installed Supplied Separately

* Fuse holders and fuses not supplied with BC 142-5.

Armature Fuse*

WiperLow

High

Horsepower ResistorSupplied Separately

Plug-In

L1

Blue

A+F-

Re d

ACCEL

DECEL

E N

-

+

M

-

+

C O N N 1

P2

G

-

+

10007V

P WR O N

I1

T

B

F+

A-

CL

L2

P3

MAX

P1

MIN

I2

IRCL

Plug-In H orsepowerResistor andArmature Fuse K itsupplied separatelyS ee Section 9.

J1

J2

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Figure 2-2 Mechanical Specifcations (Inches/mm)

CONTROL

M O U N T I N G " D "

2 S L O T S

POTENTIOMETER(SUPPLIED)

MAIN SPEED OPTIONAL AUXILIARY HEAT SINK

.9524.1

1.2531.8

.5012.7

.9824.9

5.63143

3.11

(79.0)

5.63142.9 6.25

159

1.2531.8

1.3834.9

7.00178

1

ANTI-ROTATIONPIN

3/8-32BUSHING

3/8"

SHAFT1/4" ROUND

1/2"

P 2P

3P

.4411.1

.133.1

MOUNTING "B" TAPPED 10-32(3 PLACES)

FUSE HOLDER & FINGER-SAFE

COVER MOUNTING HOLES

TAPPED 6-32

(2 PLACES)

MOUNTING "A"6 SLOTS

3.6492.5

3.1078.5

.225.6

4.30109

2.1554.6

.256.4

.184.6

.6416.3

1.7544.5

1.7544.5

.7519.1

1.5038.1

3.0076.2

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3. APPLICATION INFORMATION

3.1 Motor TypeThe control is designed or permanent magnet (PM) and Shunt Wound DC motors. Controls operated on115 Volt AC line input are designed or 90 Volt SCR rated motors. Controls operated on 230 Volt AC lineinput are designed or 180 and 90 Volt SCR rated motors. Use o higher voltage motors will result in areduction o the available maximum speed. Also, i the motor is not an SCR rated type, the actual AC linecurrent at ull load should not exceed the motors DC nameplate current rating.

3.2 Torque RequirementsThe motor selected or the application must be capable o supplying the necessary torque. In order toensure the motor is not overloaded, a DC ammeter should be connected in series with the armature. Besure the current under ull load does not exceed the motor nameplate rating.

3.3 Acceleration StartThe control contains an adjustable acceleration start eature which allows the motor to smoothly accelerate

rom zero speed to ull speed over a time period o 0.2 - 10 seconds. The acceleration trimpot (ACCEL) isactory set or 2 seconds.

3.4 Limitation In UseThe controls are designed or use on machine applications.

3.5 Armature SwitchingDo not wire the control or armature switching without taking proper precautions.

WARNING! Do not switch the armature in and out o circuit or catastrophic ailure will result.I armature switching is required or reversing or dynamic braking, use CatalogNos. BC204, BC200, or BC201.

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3.6 Step-Down Trans ormer and AC Line SwitchingWhen using a step-down trans ormer (460 Volts AC to 230 Volts AC), be sure the output current rating othe trans ormer is at least 3 times the current rating o the motor. Do not switch the primary side o thetrans ormer to disconnect power or catastrophic ailure can result. Always disconnect the control rom thesecondary side o the trans ormer.

CAUTION! Do not use this control in an explosive atmosphere. Be sure the control is usedwithin its ratings. Follow all instructions care ully.

4. MOUNTING INSTRUCTIONS

It is recommended that the control be mounted on a fat sur ace with adequate ventilation. Leave enoughroom to allow or AC line, motor connection, and other wiring that is required. Care should be taken toavoid extreme hazardous locations where physical damage can occur. When mounting the control in anenclosure, the enclosure should be large enough to allow or proper heat dissipation so that the ambienttemperature does not exceed 40C (104F). I the optional Auxiliary Heat Sink is used, mount the control insuch a manner that there is unrestricted air fow through the heat sink cooling ns.

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5. WIRING INSTRUCTIONS

WARNING! Read the Sa ey Warnings be ore operating this control. Disconnect the main powerbe ore making connections to the control.

Important Application Note: To avoid erratic operation, do not bundle the AC line and motor wires withsignal or control wiring. Also, do not bundle motor wires rom multiple controls in the same conduit. Useshielded cables on all signal wiring over 12 (30 cm). The shield should be earth grounded on the controlside only. Wire the control in accordance with the National Electrical Code requirements and other localcodes that may apply.

Table 5-1 Minimum Supply Wire Size Requirements

MaximumMotor Current

(Amps DC)

90 - 130 VoltDC Motors

(Maximum HP)

180 Volt DCMotors

(Maximum HP)

Minimum Wire Size (Cu)

Maximum 50 Ft. Maximum 100 Ft.

AWG mm2 AWG mm 2 6 .5 1 16 1.3 14 2.1

12 1 2 14 2.1 12* 3.3*

16 1.5 3 12* 3.3* 12* 3.3*

* Maximum recommended wire size.

5.1 AC Line ConnectionWire the AC line to Terminals L1 (Line Fuse)* and L2. I one o the AC line inputs is a neutral (N), wire itto Terminal L2.

CAUTION! The rated AC line voltage (115, 208/230) o the control must match the actual ACline input voltage.

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Catalog No. BC141 operates on 115 Volt AC line input only. Catalog No. BC142 operates on 208/230 Volt AC line input only. Catalog BC142-5 and BC142-6 operates on 115 Volt AC line input when JumperJ1 is set to the 115 position and operates on 208/230 Volt AC line input when Jumper J1 is set tothe 230 position ( actory setting).* Fuse holders and fuses not supplied with BC142-5.

5.2 Ground ConnectionConnect the ground wire (earth) to the control chassis.

5.3 Permanent Magnet (PM) Motor ConnectionWire the motor armature positive lead (+) to Terminal A+ (Armature Fuse*) and the negative lead (-)to Terminal A-. On Catalog Nos. BC142, BC142-5 and BC142-6, be sure Jumper J2 is set to thecorresponding motor voltage. Be sure the correct Plug-In Horsepower Resistor is installed.* Fuse holders and fuses not supplied with BC142-5.

5.4 Motor Field Connection (Shunt Wound Motors Only)

5.4.1 Full Voltage FieldWire the eld positive (+) lead to Terminal F+ and the eld negative lead (-) to Terminal F-.

5.4.2 Hal Voltage FieldFor 90 Volt DC motors with 50 Volt DC elds and 180 Volt DC motors with 100 Volt DC elds, wire the eld

positive lead (+) to Terminal F+ and the negative lead (-) to Terminal L1 (Line Fuse).Notes:

1. Do not connect motor armature leads to Terminals F+ and F-.2. Do not use Terminals F+ and F- or any purpose other than to power the eld o a shunt wound

motor.3. Shunt wound motors may be damaged i the eld remains energized without armature rotation or

an extended period o time.

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Table 5-2 Field Connection (Shunt Wound Motors Only)

Catalog No. AC Line Input Voltage(Volts AC) Armature Voltage

(Volts DC)Field Voltage

(Volts DC)Terminal

Connections

BC141 115 0 -90100 F+, F-50 F+, L1

BC142 208 / 2300 -180 200 F+, F-0 -90* 100 F+, L1

BC142-5BC142-6

115 0 -90100 F+, F-

50 F+, L1

208 / 230 0 -180 200 F+, F-

208 / 230 0 -90* 100 F+, L1

*Step-down operation.

5.5 Remote Main Speed Potentiometer ConnectionThe control is supplied with a Main Speed Potentiometer to control motor speed. Connect the low side othe potentiometer to Terminal P1. Connect the wiper o the potentiometer to Terminal P2. Connect thehigh side o the potentiometer to Terminal P3.

Figure 5-1 Remote Main Speed Potentiometer Connection

(Front View)Main Speed Potentiometer

E N

C O N N 1

P3

MAX

P1

P2

HighWiper

Low

Terminal "P3"

Terminal "P1"

Terminal "P2"

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5.6 Voltage Following Connection An isolated 0 - 9 Volt DC analog signal input can be used to control motor speed in lieu o the Main SpeedPotentiometer. The control output voltage will linearly ollow the analog signal input. The signal input mustbe isolated rom the AC line. Connect the signal input positive lead (+) to Terminal P2 and the negativelead (-) to Terminal P1. The source impedance o the signal input should be 10 k or less. The MAX

Trimpot is not operational in voltage ollowing mode. Set the MIN Trimpot, on the control, to zero output( ull counterclockwise rotation) and use auxiliary trimpots, i necessary, to scale and/or limit the inputvoltage.

Figure 5-2 Voltage Following Connection

CAUTION! Do not earth ground any input terminals.

Notes:1. I an isolated signal input is not available, or i using a 4 - 20 mA DC signal input, install the optional

plug-on Catalog No. BC152 Signal Isolator. This will also allow direct connections to processcontrollers and microprocessors.

2. I multiple ollower motors are to be controlled rom a single leader motor or a single Main SpeedPotentiometer, install the optional Catalog No. BC145 Signal Isolator.

3. Terminal F- may be used in lieu o Terminal P1.

C O N N 1

P2

MAX

E N

P3 P1

V

-

+

0 - 9 Volts DC(Isolated)

Terminal "P1"

Terminal "P2"

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5.7 Enable Circuit ConnectionThe control can be started and stopped with an Enable Circuit (close to run), as described below.

WARNING! Opening the Enable Circuit will not stop the drive i the Min Trimpot and/or theMain Input Speed Signal is not at Zero Setting.

WARNING! The Enable Circuit is never to be used as a Sa ety Disconnect since it is notail-sa e. Use only the AC line or this purpose.

5.7.1 Enable Switch or Contact Wired to the Enable Connector Using the wired mating connector that is supplied with the control, connect the switch or contact to theEnable connector (CONN1). When the switch or contact is closed, the motor will accelerate to the MainSpeed Potentiometer setting. When the switch or contact is opened, the motor will decelerate to Stop. Anopen collector (PNP) can be used in lieu o a switch or contact.

Figure 5-3 Enable Switch Or Contact Wired To The Enable Connector

Notes: 1. To use the Enable Circuit, remove the jumper that is actory installed on CONN1.

2. The deceleration time can only be made longer than the normal coasting time o the load.

(On to Run)(O to Stop)

Open Collector

C O N N 1

MAX

E N

(Open to Stop)

(Close to Run)or Contact

Enable Switch

the Mating Connector

C O N N 1

MAX

E N

Remove this jumper to install

C O N N 1

MAX

E N

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5.7.2 Enable Switch or Contact Wired to the Main Speed Potentiometer Connect the switch or contact in series with the Main Speed Potentiometer high side and Terminal P3 onthe control. Be sure the jumper is installed on the Enable Connector (CONN1). When the switch or contactis closed, the motor will accelerate to the Main Speed Potentiometer setting. When the switch or contactis opened, the motor will decelerate to the MIN Trimpot setting ( actory set to 0 Volts DC). I the MIN

Trimpot is set to other than 0 Volts DC, the motor will run at the MIN speed setting when the switch orcontact is opened. An open collector (PNP) can be connected in lieu o a switch or contact.

Notes: 1. The deceleration time can only be made longer than the normal coasting time o the load.2. I the BC152, Signal Isolator option board is installed onto the BC141, or BC142 control, the ENABLE

circuit will not unciton as described. I an ENABLE eature is required or the application, connect aN.O. (normally open), contact or switch between the speed adjust potentiometer wiper lead, or voltage

ollowing input signal, and the SIG terminal o TB1. When the contact or switch is closed, the motorwill accelerate to set speed. When the contact or switch is opened, the motor will decelerate to zerospeed at a rate set with the DECEL trimpot .

Figure 5-4 Enable Switch Or Contact Wired To The Main Speed Potentiometer

C O N N 1

Enable Switch or Contact

This jumper must

Main Speed Potentiometer

(Front View)

(Close to Run)

Low

HighWiper

(Open to Stop)

be installed

MAX

E N

Terminal "P1"

Main Speed Potentiometer

(Front View)

(On to Run)

Low

HighWiper

Open Collector

(O to Stop)

MAX

C O N N 1

Terminal "P3"

Terminal "P2"

P3 P1

P2E N

P3 P1

P2

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5.8 Inhibit Circuit ConnectionThe control can be stopped and started with an Inhibit Circuit (close to stop). Wire the switch or contact toTerminals I1 and I2. When the switch or contact is closed, the motor will coast to stop. When the switch orcontact is opened, the motor will accelerate to the Main Speed Potentiometer setting. An open collector(NPN) can be connected in lieu o a switch or contact.

WARNING! The Inhibit Circuit is never to be used as a Sa ety Disconnect since it is notail-sa e. Use only the AC line or this purpose.

Figure 5-5 Inhibit Switch Or Contact Wired To The Inhibit Terminals

5.9 DC Tachometer Connection

A DC tachometer can be used or load regulation o 1% o the set speed.Note: Jumper J2 must be set to the T position or tachometer operation. Connect the tachometer as

ollows.

Application Notes 1. The tachometer input circuit is designed or a 7 Volt or 50 Volt per 1000 RPM DC tachometer used with

an 1800 RPM motor.2. Initially set the IR Comp Trimpot ully counterclockwise. Once the tachometer is connected, the IR Comp

Trimpot may be increased or additional speed stabilization.

MIN

I1

I2

(Close to Stop)

Inhibit Switch or Contact(Open to Run)

MIN

I2

I1

(On to Stop)(O to Run)

Open Collector

Terminal "I1"Terminal "I2"

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5.9.1 Seven (7) Volt per 1000 RPM Tachometer Connect the tachometer positive lead (+) to Terminal T and the negative lead (-) to Terminal I2.

Figure 5-6 DC Tachometer Connection (7 Volts Per 1000 RPM)

5.9.2 Fi ty (50) Volt per 1000 RPM Tachometer Connect the tachometer positive lead (+) to Terminal B and the negative lead (-) to Terminal I2.

Figure 5-7 DC Tachometer Connection (50 Volts Per 1000 RPM)

B

P WR O N

I2

T

DC Tachometer

-

+

7VG

1000

Terminal "T"

Terminal "I2"

J 2

B

P WR O N

I2

T

1000G

50V

DC Tachometer

-

+

Terminal "B"

J 2

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5.9.3 Other Tachometer VoltagesThe tachometer input circuit is designed or a 7 Volt or 50 Volt per 1000 RPM DC tachometer used with an1800 RPM motor. For a tachometer other than 7 Volts or 50 Volts per 1000 RPM, or or a motor other than1800 RPM, an external 1/2 Watt resistor (RT) must be installed. Install RT in series with the tachometer.Connect one end o RT to Terminal T, connect the other end o RT to the tachometer positive lead (+),and connect the negative lead (-) o the tachometer to Terminal I2.

The value o RT can be calculated using the ollowing ormula: RT = (1.3 X VT X S) - 16000 Where VT is the tachometer voltage (in Volts per 1000 RPM) and S is the base speed o the motor (inRPM).Example: I a 20 Volt per 1000 RPM tachometer is to be used with a 3600 RPM motor:RT = (1.3 X 20 X 3600) - 16000 = 77600 Choose the closest 1/2 Watt resistor value, which is 75000 (75 k).

Figure 5-8 Other DC Tachometer Connection

B

P W

R O N

I2

T

DC Tachometer

-

+

RT

G

J 2

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6. SETTING SELECTABLE JUMPERSThe control has selectable jumpers which must be set be ore it can be used.

6.1 J1, AC Line Input Voltage Selection (Catalog No. BC142-5 and BC142-6 only)Jumper J1 is actory set to the 230 position or 208/230 Volt AC line input.

For 115 Volt AC line input, set Jumper J1 to the 115 position.Notes:1. When Jumper J1 is set to the 115 position, Jumper J2 must be set to the 90 position (or the T

position i using a tachometer).

Figure 6-1 AC Line Input Voltage Selection (Jumper J1)

6.2 J2, Motor Voltage and DC Tachometer SelectionJumper J2 is actory set to the 90 position on Catalog No. BC141, or 90 Volt DC motors, and set to the

180 position, on Catalog Nos. BC142, BC142-5 and BC142-6, or 180 Volt DC motors. To set CatalogNo. BC142, BC142-5 and BC142-6 or step-down operation (208/230 Volts AC line input and 90 Volt DCoutput), set Jumper J2 to the 90 position). To set the control or tachometer connection, set Jumper J2 tothe T position (all models).

Notes:1. On Catalog No. BC141, the 180 position is not available on Jumper J2.2. On Catalog No. BC142-5 and BC142-6, do not set the output voltage to 180 Volts DC when the AC

line input is set to 115 Volts.

J1 Set for208/230 Volt AC Line Input

(Factory Setting)

J1 Set for115 Volt AC Line Input

J

1

J

1

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Figure 6-2 Motor Voltage & DC Tachometer Selection (Jumper J2)

7. AC LINE FUSING*

A 25 Amp AC line use is actory installed in the AC line use holder. It is recommended that a 12 Amp ACline use be installed or motors rated 7.5 Amps DC or less. Fuses should be normal blow ceramic 3AG,MDA, or equivalent.

On domestic 230 Volt AC lines, separate branch circuit protection or each line must be used. The optionalBarrier Terminal Board (Catalog No. BC147) contains prewired AC line and armature use holders.

The AC Line Fuse protects the control against catastrophic ailure. I the AC Line Fuse blows, the control ismiswired, the motor is shorted or grounded, or the control is de ective.

Note: Fuse each AC line conductor that is not at ground potential.

* Fuse holders and uses not supplied with BC142-5.

Catalog No. BC141 Catalog Nos. BC142, BC142-5 and BC142-6

J2 Set for90 Volt Motor

(Factory Setting)

J2 Set for Tachometer

J2 Set for180 Volt Motor

(Factory Setting)

J2 Set for90 Volt Motor(Step-Down)

J2 Set for Tachometer

J 2

J 2

J 2 J 2 J 2

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8. PLUG-IN HORSEPOWER RESISTOR & ARMATURE FUSE KIT*The appropriate Plug-In Horsepower Resistor and Armature Fuse are supplied as a prepackaged kit.Choose the Catalog No. containing the appropriate Plug-In Horsepower Resistor and Armature Fusebased on motor horsepower and voltage in accordance with values shown in Table 8-1.

8.1 Plug-In Horsepower Resistor The Plug-In Horsepower Resistor (supplied separately) must be installed to match the control to the motorhorsepower and voltage. Install the Plug-In Horsepower Resistor in accordance with Figure 2-1.

Notes:1. The Plug-In Horsepower Resistor is used to calibrate the IR Compensation and Current Limit based on

motor horsepower and voltage. The Plug-In Horsepower Resistor eliminates the need to recalibrate IRCompensation and Current Limit in most applications.

2. Be sure the Plug-In Horsepower Resistor is inserted completely into the mating sockets.

8.2 Armature Fuse*It is recommended that an Armature Fuse (supplied separately) be installed in the armature use holder.Select the correct use. Fuses should be normal blow ceramic 3AG, MDA, or equivalent. The optionalBarrier Terminal Board (Catalog No. BC147) contains prewired AC line and armature use holders. The

Armature Fuse provides overload protection or the motor and control.

The Armature Fuse required can be calculated by multiplying the maximum DC Motor Current times 1.7.

* Fuse holders and uses not supplied with BC142-5.

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Table 8-1 Plug-In Horsepower Resistor & Armature Fuse Kit Selection

90 -130 Volt

DC Motors(HP)

180 VoltDC

Motors(HP)

ApproximateMotor Current

(Amps DC)

Plug-In HorsepowerResistor and

ArmatureFuse Kit Catalog No.

Plug-InHorsepower

Resistor Value (Ohms)

ArmatureFuse

Rating(Amps)

1/100 1/50 .2 BR1000 1 .51/50 1/25 .3 BR0510 .51 .5

1/30 1/15 .33 BR0350 .35 .5

1/20 1/10 .5 BR0250 .25 .751/15 1/8 .8 BR0251 .25 1

1/12 1/6 .85 BR0180 .18 1.251/8 1/4 1.3 BR0100 .1 2

1/6 1/3 2 BR0101 .1 2.51/4 1/2 2.5 BR0050 .05 4

1/3 3/4 3.3 BR0035 .035 5

1/2 1 5 BR0025 .025 83/4 112 7.5 BR0015 .015 12

1* 2* 10 BR0010 .01 15

112* 3* 15 BR0006 .006 25

* Indicates an Auxiliary Heat Sink (Catalog No. BC143, or equivalent) must be used.

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9. TRIMPOT ADJUSTMENTSThe control contains trimpots which have been actory set or most applications. Some applications mayrequire readjustment o the trimpots in order to tailor the control or a speci c requirement. Readjust thetrimpots as described below.

WARNING! I possible, do not adjust trimpots with main power on. I adjustments aremade with the main power applied, an insulated adjustment tool must be usedand sa ety glasses must be worn. High voltage exists in this control.

Note: In order or the IR Compensation and Current Limit settings to be correct, the proper Plug-InHorsepower Resistor must be installed or the particular motor and input voltage being used.

9.1 Acceleration Trimpot (ACCEL)The ACCEL Trimpot is provided to allow or a smooth start over an adjustable time period each time the ACpower is applied or the Main Speed Potentiometer is adjusted to a higher speed. The ACCEL Trimpot hasbeen actory set to 2 seconds, which is the amount o time it will take or the motor to accelerate rom zerospeed to ull speed. To increase the acceleration time, rotate the ACCEL Trimpot clockwise. To decreasethe acceleration time, rotate the ACCEL Trimpot counterclockwise.

Figure 9-1 ACCEL Trimpot Range

3

5

(Factory Set to 2 Seconds)

0.22

8

10

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9.2 Deceleration Trimpot (DECEL)The DECEL Trimpot controls the amount o ramp-down time when the MainSpeed Potentiometer is adjusted to a lower speed. The DECEL Trimpothas been actory set to 2 seconds, which is the amount o time it will take

or the motor to decelerate rom ull speed to zero speed. To increase thedeceleration time, rotate the DECEL Trimpot clockwise. To decrease thedeceleration time, rotate the DECEL Trimpot counterclockwise.

Note: The deceleration time cannot be made less than the natural coast timeo the motor and actual load.

9.3 Minimum Speed Trimpot (MIN)The MIN Trimpot sets the minimum speed o the motor when the MainSpeed Potentiometer is set ully counterclockwise. The MIN Trimpot is

actory set to 0 % o base motor speed. To increase the minimum speed,rotate the MIN Trimpot clockwise. To decrease the minimum speed, rotatethe MIN Trimpot counterclockwise.

Note: Readjusting the MIN Trimpot will a ect the maximum speed setting.There ore, it is necessary to readjust the MAX Trimpot i readjustingthe MIN Trimpot. It may be necessary to repeat these adjustmentsuntil both the minimum and maximum speeds are set to the desiredlevels.

9.4 Maximum Speed Trimpot (MAX)The MAX Trimpot sets the maximum speed o the motor when the MainSpeed Potentiometer is set ully clockwise. The MAX Trimpot is actory setto 100 % o base motor speed. To increase the maximum speed, rotate theMAX Trimpot clockwise. To decrease the maximum speed, rotate the MAXTrimpot counterclockwise.

CAUTION! Do not set the maximum speed above the rated motorRPM since unstable motor operation may occur.

Figure 9-2 DECEL TrimpotRange

Figure 9-3 MIN TrimpotRange

Figure 9-4 Max TrimpotRange

3

5

(Factory Set to 2 Seconds)

0.22

8

10

0

(Factory Set to 0 % of Base Speed)

30

(Factory Set to 100 % of Base Speed)

110

100

50

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9.5 Current Limit Trimpot (CL)Figure 9-5 CL Trimpot Range

The CL Trimpot sets the current limit (overload), which limits the maximumcurrent (torque) to the motor. The CL also limits the AC line inrush currentto a sa e level during startup. The CL Trimpot is actory set to 1.5 timesthe ull load rating o the motor. To increase the current limit, rotate theCL Trimpot clockwise. To decrease the current limit, rotate the CL Trimpotcounterclockwise. Some applications require a lower torque limiting valueso as not to damage the process material or the drive train.

Note: The correct value Plug-In Horsepower Resistor must be installed or the CL to operate properly.Calibration o the CL Trimpot is normally not required when the proper Plug-In Horsepower Resistor is installed.

CAUTION! Adjusting the CL above 150% o motor rating can cause overheating anddemagnetization o some PM motors. Consult motor manu acturer.

To Recalibrate the CL Trimpot:1. Disconnect the AC power and wire a DC ammeter in series with either motor armature lead.

Note: I only an AC ammeter is available, wire it in series with either AC line input lead.2. Set the Main Speed Potentiometer to approximately 30 - 50 % clockwise position.3. Set the CL Trimpot ully counterclockwise.4. Load the motor sha t in accordance with application requirements.5. Apply power and the CL LED will illuminate red. Rotate the CL Trimpot clockwise until the desired

current reading is observed on the ammeter. Factory Current Limit setting is 1.5 times the ull loadrating o the motor (with a DC ammeter wired in series with the motor armature). I using an ACammeter wired in the AC line input, the actory Current Limit setting will read 0.75 times the ullload rating o the motor.

Note: On cyclical loads, it may be normal or the CL LED to momentarily fash.

(Factory set to 150 % of Full Load)

0 200

150

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9.6 IR Compensation Trimpot (IR)The IR Trimpot sets the amount o compensating voltage required to keep the motor speed constantunder changing loads. I the load does not vary substantially, the IR Trimpot may be set to a minimumlevel (approximately 1/4 o ull clockwise rotation). The IR Trimpot is actory set to provide 3 Volts ocompensation or controls with 90 Volt DC output and 6 Volts o compensation or controls with 180 VoltDC output. To increase the amount o compensating voltage, rotate the IR Trimpot clockwise. To decreasethe amount o compensating voltage, rotate the IR Trimpot counterclockwise.

Notes:1. The correct value Plug-In Horsepower Resistor must be installed or the IR Compensation to

operate properly. Calibration o the IR Trimpot is normally not required when the proper Plug-InHorsepower Resistor is installed.

2. Excessive IR Compensation will cause the motor to become unstable, which causes cogging.3. For tachometer eedback applications, set the IR Trimpot ully counterclockwise.

Figure 9-6 IR Trimpot Range

To Recalibrate the IR Trimpot:1. Set the IR Trimpot to approximately 25% rotation.2. Run the motor unloaded at approximately 1/3 speed and record the RPMs.3. Run the motor with the maximum load and adjust the IR Trimpot so that the motor speed under

load equals the unloaded speed recorded in step 2.4. Remove the load and recheck the RPMs.5. I the unloaded RPM has changed, repeat steps 2 - 4 or more exact regulation. The control is now

compensated to provide minimal speed change due to changing loads.

(Factory set to 3 Volts DC for controls with 90 Volt DC Output)

0 24, 48

(Factory set to 6 Volts DC for controls with 180 Volt DC Output)

3, 6

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10. DIAGNOSTIC LEDSThe control is designed with PC board mounted LEDs to display the controls operational status.

10.1 Power On (PWR ON)The PWR ON LED will illuminate green when the AC line is applied to the control.

10.2 Current Limit (CL)The CL LED will illuminate red when the control goes into current limit, indicating that the current limit setpoint has been reached (set by the CL Trimpot).

11. SWITCHING CIRCUITS

11.1 AC Line Switching - The control can be turned on and o using the AC line (no waiting time isrequired). Auto-Inhibit circuitry automatically resets critical components each time the AC line isinterrupted. This, along with Acceleration Start and CL, provides a smooth start each time the AC line isapplied.

WARNING! Do not disconnect and reconnect the motor armature with the AC line applied orcatastrophic ailure will result.

11.2 Armature Switching and Dynamic Braking - I the armature is to be disconnected andreconnected with the AC power applied, connect a relay (or contactor) and a brake resistor (RB) in thearmature circuit. The Inhibit Circuit must be simultaneously activated when braking. Wire a double poledouble throw (DPDT) mechanically ganged switch to the Inhibit Terminals and the relay (or contactor) coil.

When the switch is in the Brake position, the relay is deenergized and allows the motor voltage, throughN.C. contact, to be dissipated through RB and dynamically brake the motor. Simultaneously, the inhibit isactivated and the control output is electronically extinguished, which eliminates arcing.

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Figure 11.1 Typical Dynamic Braking Circuit Connection

When the switch is in the Run position, the N.C. contact opens, the N.O. contact closes, the Inhibit isdeactivated, and the motor begins to accelerate (according to the setting o the ACCEL Trimpot) to theMain Speed Potentiometer setting.

WARNING! The Inhibit Circuit (I1, I2) is never to be used as a Sa ety Disconnect since it isnot ail-sa e. Use only the AC line or his purpose.

-M

+

RB

Speed Control

Armature

N.O.

N.C.

Contactor Coil

AC Line InputL1

L2

A+

A-

Motor

Relay or

Mechanically Ganged SwitchDouble Pole Double Throw

I1 I2

Run

Brake

Run

Brake

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12. OPTIONAL ACCESSORIES

1. Auxiliary Heat Sink (Catalog No. BC143) - Doubles the horsepower rating o the control.

2. Barrier Terminal Board (Catalog No. BC147) - Converts the quick-connect terminals o thecontrol to a barrier terminal block. Contains PC board mounted line and armature use holders( uses supplied separately). Plugs onto the quick-connect terminals o the control.

3. Signal Isolator (Catalog No. BC152) - Provides isolation between non-isolated signal sourcesand the control. Plugs onto the quick-connect terminals o the control. May also use BC145 SignalIsolater, separately mounted.

4. Dial Plate and Knob Kit (Catalog No. BC149) - Provides indication o the Main SpeedPotentiometer position (0 - 100 %).

5. DIN Rail Mounting Kit (Catalog No. BC218)

6. Current Sensing Overload Protector (Catalog No. BC146) - Provides overload current sensingand protection o DC motors and speed controls rated 1/8 - 3 HP by sensing armature current.Operates on 115 or 230 Volt AC line input.

7. RFI Filter (Catalog No. BC24-LF) - Provides RFI and EMI suppression. Rated 24 Amps at 230

Volts AC, 50/60 Hz. Complies with CE Directive 89/336/EEC (EN55022 and/or EN55011) relating tothe EMC Class A Industrial Standard. Remote mountable.

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LIMITED WARRANTY

For a period o 2 years rom date o original purchase, BALDOR will repair or replace withoutcharge controls which our examination proves to be de ective in material or workmanship. Thiswarranty is valid i the unit has not been tampered with by unauthorized persons, misused,

abused, or improperly installed and has been used in accordance with the instructions and/ or ratings supplied. This warranty is in lieu o any other warranty or guarantee expressed orimplied. BALDOR shall not be held responsible or any expense (including installation andremoval), inconvenience, or consequential damage, including injury to person, caused by itemso our manu acture or sale. (Some states do not allow the exclusion or limitation o incidental orconsequential damages, so the above exclusion may not apply.) In any event, BALDORs totalliability, under all circumstances, shall not exceed the ull purchase price o the control. Claims orpurchase price re unds, repairs or replacements must be re erred to BALDOR with all pertinentdata as to the de ect, the date purchased, the task per ormed by the control, and the problemencountered. No liability is assumed or expendable items such as uses.

Goods may be returned only with written noti cation including a BALDOR Return AuthorizationNumber and any return shipments must be prepaid.

36

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ARIZONA PHOENIX

4211 S 43RD PLACEPHOENIX, AZ 85040PHONE: 602-470-0407FAX: 602-470-0464

ARKANSAS CLARKSVILLE

1001 COLLEGE AVE.CLARKSVILLE, AR 72830PHONE: 479-754-9108FAX: 479-754-9205

CALIFORNIA LOS ANGELES

6480 FLOTILLACOMMERCE, CA 90040PHONE: 323-724-6771FAX: 323-721-5859

HAYWARD21056 FORBES STREETHAYWARD, CA 94545PHONE: 510-785-9900FAX: 510-785-9910

COLORADO DENVER

3855 FOREST STREETDENVER, CO 80207PHONE: 303-623-0127FAX: 303-595-3772

CONNECTICUT WALLINGFORD

65 SOUTH TURNPIKE ROADWALLINGFORD, CT 06492PHONE: 203-269-1354FAX: 203-269-5485

FLORIDA TAMPA/PUERTO RICO/VIRGIN ISLANDS3906 EAST 11TH AVENUETAMPA, FL 33605PHONE: 813-248-5078FAX: 813-247-2984

GEORGIA ATLANTA

62 TECHNOLOGY DR. ALPHARETTA, GA 30005PHONE: 770-772-7000FAX: 770-772-7200

ILLINOIS CHICAGO

4 SAMMONS COURTBOLINGBROOK, IL 60440PHONE: 630-296-1400FAX: 630-226-9420

INDIANA INDIANAPOLIS

5525 W. MINNESOTA STREETINDIANAPOLIS, IN 46241PHONE: 317-246-5100FAX: 317-246-5110

IOWA DES MOINES

1800 DIXON STREET, SUITE CDES MOINES, IA 50316PHONE: 515-263-6929FAX: 515-263-6515

MARYLANDBALTIMORE6660 SANTA BARBARA RD.SUITE 22-24ELKRIDGE, MD 21075PHONE: 410-579-2135FAX: 410-579-2677

MASSACHUSETTSBOSTON6 PULLMAN STREETWORCESTER, MA 01606PHONE: 508-854-0708FAX: 508-854-0291

MICHIGAN DETROIT

5993 PROGRESS DRIVESTERLING HEIGHTS, MI 48312PHONE: 586-978-9800

FAX: 586-978-9969

MINNESOTA MINNEAPOLIS

21080 134TH AVE. NORTHROGERS, MN 55374PHONE: 763-428-3633FAX: 763-428-4551

MISSOURI ST LOUIS

13678 LAKEFRONT DRIVEEARTH CITY, MO 63045PHONE: 314-373-3032FAX: 314-373-3038

KANSAS CITY 1501 BEDFORD AVENUENORTH KANSAS CITY, MO 64116PHONE: 816-587-0272FAX: 816-587-3735

NEW YORK AUBURN

ONE ELLIS DRIVEAUBURN, NY 13021PHONE: 315-255-3403FAX: 315-253-9923

NORTH CAROLINA GREENSBORO

1220 ROTHERWOOD ROADGREENSBORO, NC 27406PHONE: 336-272-6104FAX: 336-273-6628

OHIO CINCINNATI

2929 CRESCENTVILLE ROADWEST CHESTER, OH 45069PHONE: 513-771-2600FAX: 513-772-2219

CLEVELAND8929 FREEWAY DRIVEMACEDONIA, OH 44056PHONE: 330-468-4777FAX: 330-468-4778

OKLAHOMA

TULSA7170 S. BRADEN, SUITE 140TULSA, OK 74136PHONE: 918-366-9320FAX: 918-366-9338

OREGON PORTLAND

20393 SW AVERY COURTTUALATIN, OR 97062PHONE: 503-691-9010FAX: 503-691-9012

PENNSYLVANIAPHILADELPHIA1035 THOMAS BUSCHMEMORIAL HIGHWAYPENNSAUKEN, NJ 08110PHONE: 856-661-1442

FAX: 856-663-6363PITTSBURGH

159 PROMINENCE DRIVENEW KENSINGTON, PA 15068PHONE: 724-889-0092FAX: 724-889-0094

TENNESSEE MEMPHIS

4000 WINCHESTER ROADMEMPHIS, TN 38118PHONE: 901-365-2020FAX: 901-365-3914

TEXASDALLAS3040 QUEBEC STREETDALLAS, TX 75247PHONE: 214-634-7271FAX: 214-634-8874

HOUSTON10355 W. LITTLE YORK RD.SUITE 300HOUSTON, TX 77041PHONE: (281) 977-6500FAX: (281) 977-6510

UTAHSALT LAKE CITY 2230 SOUTH MAIN STREETSALT LAKE CITY, UT 84115PHONE: 801-832-0127FAX: 801-832-8911

WISCONSIN MILWAUKEE

1960 SOUTH CALHOUN ROADNEW BERLIN, WI 53151PHONE: 262-784-5940FAX: 262-784-1215

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NTERNATIONAL SALES FORT SMITH, AR

P.O. BOX 2400FORT SMITH, AR 72902PHONE: 479-646-4711FAX: 479-648-5895

CANADA

EDMONTON, ALBERTA4053-92 STREETEDMONTON, ALBERTA T6E 6R8PHONE: 780-434-4900FAX: 780-438-2600

TORONTOOAKVILLE, ONTARIO2750 COVENTRY ROADOAKVILLE, ONTARIO L6H 6R1PHONE: 905-829-3301FAX: 905-829-3302

MONTREAL, QUEBEC5155, J.A. BOMBARDIERST-HUBERT (QUBEC) CANADAJ3Z 1G4PHONE: 514-933-2711FAX: 514-933-8639

VANCOUVER,BRITISH COLUMBIA1538 KEBET WAYPORT COQUITLAM,BRITISH COLUMBIA V3C 5M5PHONE 604-421-2822FAX: 604-421-3113

WINNIPEG, MANITOBA54 PRINCESS STREETWINNIPEG, MANITOBA R3B 1K2PHONE: 204-942-5205FAX: 204-956-4251

AUSTRALIA UNIT 3, 6 STANTON ROAD

SEVEN HILLS, NSW 2147, AUSTRALIAPHONE: (61) (2) 9674 5455FAX: (61) (2) 9674 2495

UNIT 8, 5 KELLETTS ROADROWVILLE, VICTORIA, 3178 AUSTRALIAPHONE: (61) (3) 9753 4355FAX: (61) (3) 9753 4366

EL SALVADORRESIDENCIAL PINARES DE SUIZAPOL. 15 #44,NVA. SAN SALVADOR, EL

SALVADORPHONE: +503 2288-1519FAX: +503 2288-1518

CHILELUIS THAYER OJEDA 166,OF 402 - PROVIDENCIASANTIAGO, CHILEPHONE: +56 2 816 9900

CHINA160 SONG SHENG ROADSONGJIANG INDUSTRY ZONESHANGHAI 201613, CHINAPHONE: +86 21 5760 5335FAX : +86 21 5760 5336

GERMANY DIESELSTRASSE 22

D-85551 KIRCHHEIMMUNICH, GERMANY PHONE: +49 89 90 5080FAX: +49 89 90 50 8492

INDIA14, COMMERCE AVENUEMAHAGANESH COLONYPAUD ROADPUNE - 411038MAHARASHTRA, INDIAPHONE: +91 20 25 45 27 17 / 18FAX: +91 20 25 45 27 19

INDONESIATALAVERA OFFICE PARK,28TH FLOOR, SUITE M18JI. T.B. SIMATUPANG, KAV. 22-26

JAKARTA 12430, INDONESIAPHONE: +62 21 7599 9879FAX: + 62 21 7599 9878

ITALY BALDOR ASR AGSUCCURSALE DI MENDRISIOVIA BORROMINI, 20ACH-6850 MENDRISIOSWITZERLANDPHONE: 0041 91 640 99 50FAX: 0041 91 630 26 33

JAPANDIA BLDG 802,2-21-1 TSURUYA-CHO,KANAGAWA-KUYOKOHAMA, 221-0835, JAPANPHONE: 81-45-412-4506FAX: 81-45-412-4507

MEXICOLEON, GUANAJUATOKM. 2.0 BLVD. AEROPUERTOLEN 37545, GUANAJUATO,MXICOPHONE: +52 477 761 2030FAX: +52 477 761 2010

MIDDLE EAST & NORTH AFRICA

VSE INTERNATIONAL CORP.P. O. BOX 5618BUFFALO GROVE, IL 60089-5618PHONE: 847 590 5547FAX: 847 590 5587

PANAMAAVE. RICARDO J. ALFAROEDIFICIO SUN TOWERS MALLPISO 2, LOCAL 55CIUDAD DE PANAM, PANAMPHONE: +507 236-5155FAX: +507 236-0591

S INGAPORE 18 KAKI BUKIT ROAD 3, #03-09

ENTREPRENEUR BUSINESSCENTRE

SINGAPORE 415978PHONE: (65) 6744 2572FAX: (65) 6747 1708

SWITZERLAND POSTFACH 73

SCHUTZENSTRASSE 59CH-8245 FEUERTHALENSWITZERLAND

PHONE: +41 52 647 4700FAX: +41 52 659 2394

TAIWAN1F, NO 126 WENSHAN 3RD STREET,NANTUN DISTRICT,TAICHUNG CITY 408TAIWAN R.O.CPHONE: (886) 4 238 04235FAX: (886) 4 238 04463

UNITED KINGDOM6 BRISTOL DISTRIBUTION PARKHAWKLEY DRIVEBRISTOL BS32 0BF U.K.PHONE: +44 1454 850000FAX: +44 1454 859001

VENEZUELAAV. ROMA. QTA EL MILAGRO. URB.CALIFORNIA NORTECARACAS, 1070VENEZUELAPHONE/FAX: +58 212 272 7343MOBILE: +58 414 114 8623

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*704-0711*

Baldor Electric Company

MN704

All Rights Reserved. Printed in USA.

(A40249) - Rev C - 07/11

P.O. Box 2400, Fort Smith, AR 72902-2400 U.S.A., Ph: (1) 479.646.4711, Fax (1) 479.648.5792, International Fax (1) 479.648.5895Baldor - Dodge

6040 Ponders Court, Greenville, SC 29615-4617 U.S.A., Ph: (1) 864.297.4800, Fax: (1) 864.281.2433www.baldor.com