Simplex and Duplex pump control panels - Grundfosnet.grundfos.com/Appl/ccmsservices/public/... · The SLC and DLC control panel product range comprises up to 45 A / 15 hp (P2), direct-on-line

GRUNDFOS INSTRUCTIONS

SLC, DLCSimplex and Duplex pump control panels

Installation and operating instructions

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English (US) Installation and operating instructions

Original installation and operating instructions

These installation and operating instructions describe SLC, DLC pump control panels.

Sections 1-5 give the information necessary to be able to unpack, install and start up the product in a safe way.

Sections 6-13 give important information about the product, as well as information on service, fault finding and disposal of the product.

CONTENTSPage

1. Limited warranty 3

2. General information 32.1 Symbols used in this document 32.2 Other important notes 3

3. Receiving the product 43.1 Unpacking the product 43.2 Inspecting the product 43.3 Temporary storage after delivery 43.4 Applications 4

4. Installing the product 64.1 Location 64.2 Mechanical installation 74.3 Electrical connection 7

5. Starting up the product 12

6. Liquid level control 136.1 Float switches 136.2 Submersible analog level pressure transducer 146.3 System for one pump (SLC) and three float switches 156.4 System for one pump (SLC) and submersible level

transducer, and two optional backup float switches 156.5 System for two-pump (DLC) operation with four float

switches 166.6 System for two-pump operation (DLC) with

submersible level transducer and two backup float switches 16

7. Product introduction 177.1 Identification 177.2 Type key 187.3 Approvals 18

8. Product range 198.1 SLC, float-switch-controlled option 198.2 SLC, transducer-controlled option 198.3 DLC, float-switch-controlled option 208.4 DLC, transducer-controlled option 208.5 Additional options 20

9. Functions 219.1 SLC, float-switch-controlled option 219.2 SLC, transducer-controlled option 219.3 DLC, float-switch-controlled option 229.4 DLC, transducer-controlled option 229.5 Digital input and output screens 239.6 Screen navigation 259.7 Control panel operation 269.8 Pump alternation 309.9 Adjustable parameters 31

10. Servicing the product 4110.1 Maintaining the product 41

11. Fault finding the product 42

12. Technical data 4212.1 Dimensions, SLC 4312.2 Dimensions, DLC 44

13. Disposing of the product 45

Prior to installation, read these installation and operating instructions. Installation and operation must comply with local regulations and accepted codes of good practice.

The use of this product requires experience with and knowledge of the product. Persons with reduced physical, sensory or mental capabilities must not use this product, unless they are under supervision or have been instructed in the use of the product by a person responsible for their safety. Children must not use or play with this product.

CAUTIONSuccessful operation depends on careful attention to the procedures described in this manual. Keep this manual for future use.

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1. Limited warranty
New equipment manufactured by seller or service supplied by seller is warranted to be free from defects in material and workmanship under normal use and service for a minimum of twelve (12) months from date of installation, eighteen (18) months from date of shipment, unless otherwise stated in product warranty guide (available upon request). In the case of spare or replacement parts manufactured by seller, the warranty period shall be for a period of twelve months from shipment. Seller's obligation under this warranty is limited to repairing or replacing, at its option, any part found to its satisfaction to be so defective, provided that such part is, upon request, returned to seller's factory from which it was shipped, transportation prepaid. Parts replaced under warranty shall be warranted for twelve months from the date of the repair, not to exceed the original warranty period. This warranty does not cover parts damaged by decomposition from chemical action or wear caused by abrasive materials, nor does it cover damage resulting from misuse, accident, neglect, or from improper operation, maintenance, installation, modification or adjustment. This warranty does not cover parts repaired outside seller's factory without prior written approval. Seller makes no warranty as to starting equipment, electrical apparatus or other material not of its manufacture. If purchaser or others repair, replace, or adjust equipment or parts without seller's prior written approval, seller is relieved of any further obligation to purchaser under this paragraph with respect to such equipment or parts, unless such repair, replacement, or adjustment was made after seller failed to satisfy within a reasonable time seller's obligations under this paragraph. Seller's liability for breach of these warranties (or for breach of any other warranties found by a court of competent jurisdiction to have been given by seller) shall be limited to: (a) accepting return of such equipment exw plant of manufacture, and (b) refunding any amount paid thereon by purchaser (less depreciation at the rate of 15 % per year if purchaser has used equipment for more than thirty [30] days), and canceling any balance still owing on the equipment, or (c) in the case of service, at seller's option, redoing the service, or refunding the purchase order amount of the service or portion thereof upon which such liability is based. These warranties are expressly in lieu of any other warranties, express or implied, and seller specifically disclaims any implied warranty of merchantability or fitness for a particular purpose, and in lieu of any other obligation or liability on the part of the seller whether a claim is based upon negligence, breach of warranty, or any other theory or cause of action. In no event shall seller be liable for any consequential, incidental, indirect, special or punitive damages of any kind. For purposes of this paragraph, the equipment warranted shall not include equipment, parts, and work not manufactured or performed by seller. With respect to such equipment, parts, or work, seller's only obligation shall be to assign to purchaser the warranties provided to seller by the manufacturer or supplier providing such equipment, parts or work. No equipment furnished by seller shall be deemed to be defective by reason of normal wear and tear, failure to resist erosive or corrosive action of any fluid or gas, purchaser's failure to properly store, install, operate, or maintain the equipment in accordance with good industry practices or specific recommendations of seller, including, but not limited to seller's installation and operation manuals, or purchaser's failure to provide complete and accurate information to seller concerning the operational application of the equipment.

2. General information

2.1 Symbols used in this document

The text accompanying the three hazard symbols DANGER, WARNING and CAUTION will be structured in the following way:

Example

2.2 Other important notes

DANGERIndicates a hazardous situation which, if not avoided, will result in death or serious personal injury.

WARNINGIndicates a hazardous situation which, if not avoided, could result in death or serious personal injury.

CAUTIONIndicates a hazardous situation which, if not avoided, could result in minor or moderate personal injury.

SIGNAL WORDDescription of hazard

Consequence of ignoring the warning- Action to avoid the hazard.

DANGERElectric shock

Death or serious personal injury- Before starting any work on the product, make

sure that the power supply has been switched off and that it cannot be accidentally switched on.

A blue or grey circle with a white graphical symbol indicates that an action must be taken.

A red or grey circle with a diagonal bar, possibly with a black graphical symbol, indicates that an action must not be taken or must be stopped.

If these instructions are not observed, it may result in malfunction or damage to the equipment.

Notes or instructions that make the work easier and ensure safe operation.

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3. Receiving the product

3.1 Unpacking the product

• Check that the product received is in accordance with the order.

• Check that the voltage, phase and frequency of the product match the voltage, phase and frequency of the installation site.

• During unpacking and prior to installation, make sure that the product is not dropped or mishandled.

3.2 Inspecting the product

• Check the product for defects and damage immediately after receiving it.

• If any equipment is damaged in transit, promptly report this to the carrier's agent. Make complete notations on the freight bill.

3.3 Temporary storage after delivery

If the product is not to be installed and operated immediately after receiving it, store it in a clean, dry area at a moderate ambient temperature.

3.4 Applications

3.4.1 SLC and DLC pump control panels

Grundfos SLC and DLC pump control panels are designed for level control, monitoring and protection of pumps in wastewater, water supply and drainage systems.

SLC and DLC pump control panels are designed for emptying (water removal) applications. (For boosting applications, see the Grundfos BoosterpaQ product line.)

The SLC and DLC control panel product range comprises up to 45 A / 15 hp (P2), direct-on-line starting (DOL).

Fig. 1 Grundfos DLC pump control panel

Fig. 2 Outer front door and dead-front inner door

Fig. 3 HMI operating panel with keypad and text display

Leave the product in the packing until you are ready to install it. The packing is specially designed to protect the product from damage.

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Dead-front

inner door

Front door

Alarm beacon

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3.4.2 SLC, for one pump (Simplex)
Float-switch-controlled option

The SLC, float-switch-controlled option, enables control of one (1) pump, utilizing the following float switch inputs:

– high water-level alarm

– pump on

– pump off.

Transducer-controlled option

The SLC, transducer-controlled option, enables control for one (1) pump, utilizing an analog submersible level transducer with float-switch alarms:

– 4-20 mA (analog) water-level detection for duty and standby pump control

– high water-level alarm float switch

– low water-level alarm float switch.

3.4.3 DLC, for two pumps (Duplex)

Float-switch-controlled option

The DLC, float-switch-controlled option, enables control of two (2) pumps, utilizes the following inputs:

– high water-level alarm

– duty pump on

– standby pump on

– pump(s) off.

DLC, transducer-controlled option

DLC, transducer-controlled option, enables control of two (2) pumps, utilizing an analog submersible level transducer with float-switch alarms:

– 4-20 mA (analog) water-level detection for duty and standby pump control

– high water-level alarm float switch

– low water-level alarm float switch.

3.4.4 Application examples

Fig. 4 Application examples

* As standard, transducer-controlled panels have high- and low-level float-switch backup inputs for pump operation and alarm conditions. It is optional to use these float switches.

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SLC, float-switch-controlled option

SLC, transducer-controlled option (analog, submersible transducer with float-switch backup)*

DLC, float-switch-controlled option

DLC, transducer-controlled option (analog, submersible transducer with float-switch backup)*

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4. Installing the product

4.1 Location

Do not install SLC, DLC pump control panels, and the intrinsically safe version (with Ex barrier), if required, in potentially explosive areas. Use only float switches approved for use in potentially explosive areas. Connect the float switches via the Ex barrier in the intrinsically safe version of the SLC, DLC pump control panel.

Install the SLC,DLC pump control panels at ambient temperatures from -22 °F to +122 °F (-30 °C to +50 °C).

Enclosure class: NEMA4X.

WARNINGArc flash and electric shock hazard

Death or serious personal injury- Wear appropriate personal protective equipment

(PPE) and tools while working on this equipment.

CAUTIONToxic material

Minor or moderate personal injury- Before starting any work on pumps used to pump

liquid which could be constituted as being hazardous to health, clean and vent pumps, pits, etc. thoroughly according to local regulations.


Death or serious personal injury- The installation must be carried out by authorized

personnel in accordance with local regulations.


Death or serious personal injury- Before starting any work on the product, pumps,

pits, etc., make sure that the power supply has been switched off and that it cannot be accidentally switched on.


Death or serious personal injury- Before starting any work on the system, switch off

the power supply and lock the main disconnect switch in the Off position. Switch off any external voltage connected to the system before working on the system.


Death or serious personal injury- Connect the pump control panel in accordance

with the rules and standards in force for the application in question.


Death or serious personal injury- The operating voltage and frequency are marked

on the controller nameplate. Make sure that the controller is suitable for the power supply.

DANGERExplosion

Death or serious personal injury- Float switches placed in a potentially explosive

area must be connected via the intrinsically safe version of the SLC. Do not install the intrinsically safe version of the SLC with Ex barrier in the potentially explosive area.

DANGERExplosion

Death or serious personal injury- Equipment used in potentially explosive areas

must be approved for the particular application in each individual case. Furthermore, route the cables into the potentially explosive area in accordance with local regulations.

Use float switches of the same type as Grundfos product numbers 98365984, 98365985 and 98365986, i.e. float switches with gold-plated contacts suitable for low voltages and currents (40 V/100 mA). All Ex-approved float switches are also suitable. Connect the float switches as NO contacts, i.e. brown and black leads, when using float switches, Grundfos product numbers 98372085, 98372086 and 98372087.

Connect single-phase motors to an external operating capacitor and in certain cases also to a starting capacitor. Further details can be found in the installation and operating instructions for the pump in question.

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4.2 Mechanical installation
4.2.1 Mounting the product

Before mounting the control panel, remove the transport protectors, if any, from inside the cabinet.

Mount the control panel on a plane and flat wall surface, with the Pg cable entries pointing downwards. Fit any additional Pg cable entries, if required, in the bottom plate of the cabinet.

4.3 Electrical connection

If you install the product outdoors, place it in a protective shed or cupboard.

Do not expose the product to direct sunlight.











Death or serious personal injury.- Before starting any work on the product, pumps,



Death or serious personal injury- Before starting any work on the system, switch off

the power supply and lock the main disconnect switch in the Off position. Switch off any external voltage connected to the system before working on the system.


Death or serious personal injury- Connect the pump control panel in accordance

with the rules and standards in force for the application in question.


Death or serious personal injury- The operating voltage and frequency are marked

on the controller nameplate. Make sure that the controller is suitable for the power supply on which it will be used.

DANGERExplosion

Death or serious personal injury- Float switches placed in a potentially explosive

area must be connected via the intrinsically safe version of the SLC. Do not install the intrinsically safe version of the SLC with Ex barrier in the potentially explosive area.

DANGERExplosion

Death or serious personal injury- Equipment used in potentially explosive areas

must be approved for the particular application in each individual case. Furthermore, route the cables into the potentially explosive area in accordance with local regulations.

Use float switches of the same type as Grundfos product numbers 98365984, 98365985 and 98365986, i.e. float switches with gold-plated contacts suitable for low voltages and currents (40 V/100 mA). All Ex-approved float switches are also suitable. Connect the float switches as NO contacts, i.e. brown and black leads, when using float switches, Grundfos product numbers 98372085, 98372086 and 98372087.

Connect single-phase motors to an external operating capacitor and in certain cases also to a starting capacitor. Further details can be found in the installation and operating instructions for the pump in question.

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4.3.1 Wiring diagrams

SLC, float-switch-controlled option

Fig. 5 Wiring diagram, SLC with float switches

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H*H1

X1 X2

F1 F2

L1 N

+ -

L1

L3

L2 T2L2

T1L1

L3 T3

OLRxxA

CB xxA K11

1

CB 10A

L+ M

i5

1 i14

NIBP

21 22K02

i6

+ -

L1

L2

L3

i334

i224

21 22K03

98

K011112 1411

10

K11A1

Q1

Q4

+ -A

A2

K02A2A1

GX2X1

11 14K02

K03A2A1

6 596 95

OLR

R

K01A2A1

7

11 14K03

Q3

Factory wireField wire

PumpXXX VAC, 3-phase, XX hp

High-level alarm float switch

Pump on float switch

Pump off float switch

Pump fault

Pump overtemperature sensor

Seal sensor

Push-to-Silence alarm

Fuses 2A

Control panel transformerXXXV - 120 V, 100 VA

Control panel115 VAC

PLC text display

24 VDC power supply

PLC

Motor contactor

Pump run light

Beacon alarm light

Alarm relay

Audible alarm

Pump overload relay or overtemperature sensor

Pump seal-failure sensor

Hand Auto

OFF

From main power panelXXX VAC, 3-phase, 60 HzMain disconnect switch provided by others

Ground wire

To LOGO

From display screen

24 Vpower supply

LOGO

Alarm contact

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SLC, transducer-controlled option
Fig. 6 Wiring diagram, SLC with submersible analog level pressure transducer

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H*H1

X1 X2

F1 F2

L1 N

+ -

L1

L3

L2 T2L2

T1L1

L3 T3

OLRxxA

CB xxA K11

1

CB 10A

L+ M

i5

NIBP

21 22K02

i6

+ -

L1

L2

L3

21 22K03

1 i1

i2

i8

500Ohm

3

23

Trans+

24V --

87

K011112 1411

9

K11A1

Q1

Q4

+ -A

A2

K02A2A1

GX2X1

11 14K02

K03A2A1

5 496 95

OLR

R

K01A2A1

6

11 14K03

Q3


PumpXXX VAC, 3-phase, XX hp


Pressure transducer

Low-level alarm float switch

Pump failure

Pump over-temperature sensor

Seal sensor


Fuses 2A

Control panel - transformerXXXV - 120 V, 100 VA

Controls115 VAC

PLCtext display

24 VDCpower supply

PLC

Motor contactor

Pump run light

Beacon alarm light

Alarm relay

Audible alarm

Pump overload relay or overtemperature sensor

Pump seal-failure sensor

Hand Auto

OFF


Ground wire

To LOGO

Fromdisplay screen

24 Vpower supply

Alarm contact

LOGO

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DLC, float-switch-controlled option

Fig. 7 Wiring diagram, DLC with float switches

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1312

K011112 1411

14

K11A1

Q1

K12

Q2

Q3

Q4

+ -A

A2

A1 A2

K02A2A1

GX2X1

GX2X1

11 14K02

11 14K04

21 22K04

i7

K03A2A1

7 6

K04A2A1

K05A2A1

10 9

11

96 95OLR1

96 95OLR2

R

K01A2A1

8

11 14K03

11 14K05

21 22K03

21 22K03

H*H1

X1 X2

F1 F2

L1 N

+ -

L1

L3

L2

CB xxA

T2L2

T1L1

L3 T3

T2L2

T1L1

L3 T3

OLR2XXA

OLR1xxA

CB xxA K11

K12

1

2

CB 10A

L+ M

i5

1 i1

i4

5

45

NIBP

21 22K02

i6

+ -

L1

L2

L3

i335

i225


PumpsXXX VAC, 3-phaseXX hp


Standby pump on float switch

Duty pump on float switch

Pumps-off float switch

Pump 1 failure

Pump 2 failure

Pump 1 over-temperature sensor

Seal sensor 1


Seal sensor 2


Fuses 2A

Controls - transformerXXXV - 120 V, 100 VA

Control panel115 VAC

PLC text display

24 VDCpower supply

PLC

Motor contactor

Pump run light

Motor contactor

Pump run light

Beacon Alarm Light

Alarm relay

Audible Alarm

Alarm contact

Pump 1 overload relay or overtemperature sensorPump 1 seal-failure sensor

Hand

Hand

Auto

Off

Off

Auto


Ground wire

To LOGO

From display screen

24 Vpower supply

LOGO

Pump 2 overload relay or overtemperature sensorPump 2 seal-failure sensor

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DLC, transducer-controlled option
Fig. 8 Wiring diagram, DLC with submersible analog level pressure transducer

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H*H1

X1 X2

F1 F2

L1 N

+ -

L1

L3

L2

CB xxA

T2L2

T1L1

L3 T3

T2L2

T1L1

L3 T3

OLR2XXA

OLR1xxA

CB xxA K11

K12

1

2

CB 10A

L+ M

i5

NIBP

21 22K02

i6

+ -

L1

L2

L3

1 i1

i2

i8

500Ohm

3

23

Trans+

24V --

1110

K011112 1411

12

K11A1

Q1

K12

Q2

Q3

Q4

+ -A

A2

A1 A2

K02A2A1

GX2X1

GX2X1

11 14K02

11 14K04

21 22K04

i7

K03A2A1

5 4

K04A2A1

K05A2A1

8 7

9

96 95OLR1

96 95OLR2

R

K01A2A1

6

11 14K03

11 14K05

21 22K03

21 22K03


PumpsXXX VAC, 3-phaseXX hp


Seal sensor 1


Seal sensor 2

Fuses 2A

Control panel - transformerXXXV - 120 V 100 VA

Controls115 VAC

PLC text display

24 VDC power supply

PLC

Motor contactor

Pump run light

Motor contactor

Pump run light

Beacon Alarm Light

Alarm relay

Audible Alarm

Alarm contact

Pump 1 overload relay or overtemperature sensor

Pump 1 seal-failure sensor

Pump 2 overload relay or overtemperature sensor

Hand

Hand

Auto

Off

Off

Auto


Ground wire

To LOGO

Fromdisplay screen

24 Vpower supply

Pump 2 seal-failure sensor

LOGO


Pressure transducer

Low-level alarm float switch

Pump 1 failure


Pump 2 failure

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5. Starting up the product

Proceed as follows:

1. Check that the float switches have been connected according to the wiring diagram for the application.

2. Check that the pump inlet is submerged in the liquid to be pumped.

3. Observe the warning below. Set the overload relay to the rated current stamped on the pump motor nameplate.

4. Switch on the power supply.Three-phase pumps only: Check for wrong phase sequence. If the phase sequence is wrong, the impeller will rotate backwards.

5. Check the direction of rotation before starting up the pump. An arrow on the stator housing of most Grundfos pumps indicates the correct direction of rotation. For a Grundfos pump, check that the direction of rotation is clockwise when viewed from above. See fig. 9. Check the Installation and Operating Instructions for the pump to verify the correct direction of rotation.

Fig. 9 The correct direction of rotation is clockwise for most Grundfos pumps

For Grundfos pumps:

Check the direction of rotation when connecting the pump to a new installation. The direction of rotation can be checked in the following way:

• Let the pump hang from a lifting device, e.g. the hoist used for lowering the pump into the tank.

• Start and stop the pump while observing the movement (jerk) of the pump. If connected correctly, the pump will rotate clockwise, i.e. it will jerk counter-clockwise.

• If the direction of rotation is wrong, interchange any two of the phases in the power supply cable.

• Check that a stop float switch is installed to ensure that the pump does not dry run. If the pump is dry running, increase the height of the stop float switch.

• Three-phase pumps: Check that the direction of rotation of the pump is correct according to the installation and operating instructions for the pump in question.

• Select the required operating mode by means of the automatic/manual/off toggle switch.






liquid which could be constituted as being hazardous to health, a thorough cleaning and venting of pumps, pits, etc. must be carried out according to local regulations.


Death or serious personal injury- Startup must be carried out by authorized






Death or serious personal injury- Set the overload relay to the rated current

stamped on the pump motor nameplate.

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6. Liquid level control
6.1 Float switches

SLC and DLC control panels are available with float switches for automatic level control. Float switches are available as accessories. Grundfos float switches are of the non-mercury type and are available for standard and explosion-proof pumps. The hermetically sealed polypropylene housing and polyurethane cable make Grundfos float switches resistant to many chemicals, e.g. alcohol, uric acid, sewage, oils, gasoline and fruit acid.

6.1.1 SLC

The SLC can be fitted with up to three float switches:

• Minimum: Stops the pump.

• Maximum: Starts the pump.

• Alarm (optional): Indicates high water level or pump failure.

6.1.2 DLC

The DLC can be fitted with up to four float switches:

• Minimum: Stops both pumps.

• Maximum 1: Starts one pump.

• Maximum 2: Starts the other pump.

• Alarm (optional): Indicates high water level or pump failure.

6.1.3 Locating and positioning the float switches

Install the float switches in the water collecting tank or pit floating on the pumped liquid.

A float switch is an accepted way of controlling liquid levels in tanks, pits, etc.

The position of the float switches determines when the SLC or DLC will start and stop the pump(s).

6.1.4 Function of the float switches

Suspend the float switch, encased in a drop-shaped polypropylene housing, at the desired height by its own three-core cable. When the liquid reaches a certain level, the float switch will tip either up or down, causing the contact to open or close.

When the float switch is pointing up, the float switch contact will be closed and the pump will start.

When the float switch is pointing down, the float switch contact will be opened and the pump will stop.

Fig. 10 Float-switch positions

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ON

OFF

Grundfos level switches for non-explosion-risk environment Product number

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Grundfos float switch MS1 UL with 33 ft (10 m) cable 98365984



Cable support of stainless steel for two float switches 98365987

Grundfos level switches for explosion-risk-environment Product number

Grundfos float switch MS1 Ex IECex with 33 ft (10 m) cable 98372085



Cable support of stainless steel for two float switches 98365987

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6.2 Submersible analog level pressure transducer

6.2.1 Applications

• Level measurement in rivers and lakes

• level measurement in vessel and storage systems

• control of sewage lifting and pumping stations

• monitoring of sewage, settling and storm water retention basins

• optimized for simple measuring requirements in level measurement

• suitable for permanent level measurement up to a 328 ft (100 m) water column.

Transducer features

• Hermetically sealed, robust stainless-steel case

• fully-welded construction ensuring long life and permanent sealing

• enclosure class IP68

• 4-20 mA output as standard

• accuracy of 0.5 %

• 65 ft (19.8 m) PUR cable

• measuring range:0-9 psi (0 - 0.62 bar) / 0 - 20.1 ft (6.04 m)

• temperature ranges

• liquid: 14-122 °F (-10 to +50 °C)

• ambient: 14-122 °F (-10 to +50 °C)

• storage: -22 to +176 °F (-30 to +80 °C)

• power supply: DC 24 V.

Birdcage (sensor guard) features

The birdcage sensor guard protects the sensor from floating debris. Its weight provides the sensor with stability, even in light turbulence.

• Birdcage maximum temperature:-4 to +212 °F (-20 to +100 °C)

• thread: G 1/2B

• weight: approximately 3 lb (1.4 kg)

• height: 1.97 in.

• diameter: 3.81 in.

• material: stainless steel AISI 304 (similar to EN 1.4301).

SLC or DLC with pressure transducer can be set up with float-switch backup.

Order two float switches for optional high- and low-level backup of the transducer.

Fig. 11 Grundfos submersible, analog level pressure transducer kit (sensor and birdcage)

Fig. 12 Sensor dimensions

Fig. 13 Birdcage dimensions

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Grundfos submersible, analog level pressure transducer kit (see fig. 11)

Product number

65 ft (19.8 m) PUR cable, 0-9 psi (0 - 0.62 bar) / 0 - 20.1 ft (6.1 m) measuring range, stainless-steel birdcage

99045076

3.94

in. (

100

mm

)

0.393 in.(10 mm)

0.1.06 in.(27 mm)

G1/2B

0.708 in.(18 mm)

3.81 in. (97 mm)

1.97

in. (

50 m

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3.81

in. (

97 m

m)

Wt 3 lb(1360 g)

0.20 in.(5 mm)

0.79 in.(20 mm)

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6.3 System for one pump (SLC) and three float
switches

Read all the warnings listed in section 4. Installing the product before you begin any work. For wiring diagrams, see section 4.3 Electrical connection.

For functional information, see section 9.7.1 SLC, float-switch-controlled option.

Fig. 14 One-pump system (SLC) with three float switches

6.3.1 Electrical connection

For all field connections to the panel, i.e. main power connection, pump power connection, float switches, pump overtemperature sensor, seal failure sensor, dry alarm contacts, see wiring diagram, fig. 5, for terminal wiring locations.

Fit all cables/wires through the Pg cable entries and gaskets (NEMA4).

The maximum back-up fuse is stated on the control panel nameplate.

If required according to local regulations, install an external disconnect switch.

6.4 System for one pump (SLC) and submersible level transducer, and two optional backup float switches

Read all the warnings listed in section 4. Installing the product before you begin any work.

The pump is controlled by the liquid level in the pit. For wiring diagrams, see section 4.3 Electrical connection.

For functional information, see section 9.7.2 SLC, transducer-controlled option.

Fig. 15 One-pump system (SLC) with submersible level transducer and two optional backup float switches


For all field connections to the panel, i.e. main power connection, pump power connections, submersible pressure transducer, optional high/low float-switch backup, pump overtemperature sensor, seal failure sensor, dry alarm contacts, see wiring diagram, fig. 6, for terminal wiring locations.

Fit all cables/wires through the Pg cable entries and gaskets (NEMA4X).

The maximum back-up fuse is stated on the control panel nameplate.


The use of backup float switches is optional.

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6.5 System for two-pump (DLC) operation with four float switches

Read all warnings listed in section 4.3 Electrical connection before you begin any work.


For functional information, see section 9.7.3 DLC, float-switch-controlled option.

Fig. 16 Two-pump system (DLC) with four float switches


For all field connections to the panel, i.e. main power connection, pump power connection, float switches, pump overtemperature sensor, seal failure sensor, dry alarm contacts, see wiring diagram, fig. 7, for terminal wiring locations.


The maximum amperage is stated on the control panel nameplate.


6.6 System for two-pump operation (DLC) with submersible level transducer and two backup float switches

Read all warnings listed in section 4.3 Electrical connection before you begin any work.


For functional information, see section 9.7.4 DLC, transducer-controlled option.

Fig. 17 Two-pump system (DLC) with submersible level transducer and optional two backup float switches


For all field connections to the panel, i.e. main power connection, pump power connections, submersible pressure transducer, optional high/low level float-switch backup, pump overtemperature sensor, seal failure sensor, dry alarm contacts, see wiring diagram, fig. 8, for terminal wiring locations.


The maximum amperage is stated on the control panel nameplate.



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7. Product introduction
7.1 Identification

7.1.1 Nameplate

How to read the model designation

The actual control panel type, voltage variant, etc. are stated on the nameplate inside the control panel.

SLC nameplate

Fig. 18 Example of SLC nameplate

The SLC is available for direct-on-line starting.

The SLC can be connected and set to operate with either two or three float switches. See these sections:

• 6.3 System for one pump (SLC) and three float switches.

• 6.4 System for one pump (SLC) and submersible level transducer, and two optional backup float switches.

DLC nameplate

Fig. 19 Example of DLC nameplate

The DLC is available for direct-on-line starting.

The DLC can be connected and set to operate in two different ways. See these sections:

• 6.5 System for two-pump (DLC) operation with four float switches.

• 6.6 System for two-pump operation (DLC) with submersible level transducer and two backup float switches.

For panel model ZGPCS230-3

Z = Electrical equipment

G = Grundfos

PC = Pump control panel

S

D

= Simplex

Duplex

230-3 = 230 V, 3-phase

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7.2 Type key

7.3 Approvals

Listed per UL 508A.

Example Control SLC . 208/230 . A . 1 . B . 30/150 . T . FC

Type rangeControl SLC: Simplex Control panelControl DLC: Duplex Control panel

Voltage [V]208/230 V460 V575 V

Motor power [hp]

208-230 VA: 1.5 - 1.8 hpB: 2 - 7.5 hpC: 8-10 hpD: 12.5 - 15 hp

460 VE: 1.5 - 4 hpF: 5.5 - 10 hpD: 12.5 - 15 hp

575 VG: 1.5 hpH: 1.8 - 3 hpI: 4 - 5.5 hpJ: 7.5 hpC: 8-10 hpD: 12.5 - 15 hp

Phase1: Single-phase3: Three-phase

Operating current [A]

208/230 V - 460 VA: 2 - 6.3 AB: 5.7 - 18.9 AC: 9-30 AD: 15-45 A

575 VE: 1.6 - 2.5 AF: 2.5 - 4 AG: 4 - 6.3 AH: 6-10 AI: 9-14 AJ: 13-18 A

Run/start capacitor(blank = no capacitor)

OptionsT: Battery backupY: Intrinsically safe with UL698A listingZ: Padlockable main disconnect switch

Level detectionFC: Float-switch-controlledPT: Analog submersible pressure transducer-controlled

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8. Product range
8.1 SLC, float-switch-controlled option

8.2 SLC, transducer-controlled option

Description PhaseVoltage[VAC]

Motor shaft power[hp]

Overload range[A]

Main disconnect switch required

[A]

Product number

SLC.208/230.B.1-FC 1 208/230 2.0 10.0 - 40.0 15 99165671SLC.208/230.A.3.A-FC 3 208/230 1.5 - 1.8 2.0 - 6.3 15 99107775SLC.208/230.B.3.B-FC 3 208/230 2.0 - 3.0 5.7 - 18.9 15 99107776SLC.208/230.B.3.C-FC 3 208/230 2.0 - 7.5 9.0 - 30 30 99107777SLC.208/230.C.3.D-FC 3 208/230 8.0 - 10.0 15.0 - 45.0 40 99107778SLC.208/230.D.3.D-FC 3 208/230 12.5 - 15.0 15.0 - 45.0 60 99107779SLC.460.E.3.A-FC 3 460 1.5 - 4.0 2.0 - 6.3 15 99107780SLC.460.F.3.B-FC 3 460 5.5 - 10.0 5.7 - 18.9 20 99107781SLC.460.D.3.C-FC 3 460 12.5 - 15.0 9.0 - 30.0 25 99107782SLC.575.G.3.E-FC 3 575 1.5 1.6 - 2.5 15 99153139SLC.575.H.3.F-FC 3 575 1.8 - 3.0 2.5 - 4.0 15 99153140SLC.575.I.3.G-FC 3 575 4.0 - 5.5 4.0 - 6.3 15 99153141SLC.575.J.3.H-FC 3 575 7.5 6.0 - 10.0 20 99153142SLC.575.C.3.I-FC 3 575 8.0 - 10.0 9.0 - 14.0 20 99153143SLC.575.D.3.J-FC 3 575 12.5 - 15.0 13.0 - 18.0 25 99153144



Overload range[A]


[A]

Product number

SLC.208/230.B.1-PT 1 208/230 2.0 10.0 - 40.0 15 99165673SLC.208/230.A.3.A-PT 3 208/230 1.5 - 1.8 2.0 - 6.3 15 99107059SLC.208/230.B.3.B-PT 3 208/230 2.0 - 3.0 5.7 - 18.9 15 99107060SLC.208/230.B.3.C-PT 3 208/230 2.0 - 7.5 9.0 - 30.0 30 99107061SLC.208/230.C.3.D-PT 3 208/230 8.0 - 10.0 15.0 - 45.0 40 99107062SLC.208/230.D.3.D-PT 3 208/230 12.5 - 15.0 15.0 - 45.0 60 99107063SLC.460.E.3.A-PT 3 460 1.5 - 4.0 2.0 - 6.3 15 99107064SLC.460.F.3.B-PT 3 460 5.5 - 10.0 5.7 - 18.9 20 99107065SLC.460.D.3.C-PT 3 460 12.5 - 15.0 9.0 - 30.0 25 99107066SLC.575.G.3.E-PT 3 575 1.5 1.6 - 2.5 15 99153151SLC.575.H.3.F-PT 3 575 1.8 - 3.0 2.5 - 4.0 15 99153152SLC.575.I.3.G-PT 3 575 4.0 - 5.5 4.0 - 6.3 15 99153153SLC.575.J.3.H-PT 3 575 7.5 6.0 - 10.0 20 99153154SLC.575.C.3.I-PT 3 575 8.0 - 10.0 9.0 - 14.0 20 99153155SLC.575.D.3.J-PT 3 575 12.5 - 15.0 13.0 - 18.0 25 99153156

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8.3 DLC, float-switch-controlled option

8.4 DLC, transducer-controlled option

8.5 Additional options

**Enclosure adder is requiredNote: Seal-failure sensor(s), overtemperature sensor(s) are standard. Condition messages, such as run time, alarms and pump cycles are displayed on the HMI operating panel.



Overload range[A]


[A]

Product number

DLC.208/230.B.1-FC 1 208/230 2.0 10.0 - 40.0 25 99165672DLC.208/230.A.3.A-FC 3 208/230 1.5 - 1.8 2.0 - 6.3 20 99107783DLC.208/230.B.3.B-FC 3 208/230 2.0 - 3.0 5.7 - 18.9 20 99107784DLC.208/230.B.3.C-FC 3 208/230 2.0 - 7.5 9.0 - 30.0 50 99107785DLC.208/230.C.3.D-FC 3 208/230 8.0 - 10.0 15.0 - 45.0 75 99107786DLC.208/230.D.3.D-FC 3 208/230 12.5 - 15.0 15.0 - 45.0 120 99107787DLC.460.E.3.A-FC 3 460 1.5 - 4.0 2.0 - 6.3 20 99107788DLC.460.F.3.B-FC 3 460 5.5 - 10.0 5.7 - 18.9 40 99107789DLC.460.D.3.C-FC 3 460 12.5 - 15.0 9.0 - 30.0 50 99107790DLC.575.G.3.E-FC 3 575 1.5 1.6 - 2.5 15 99153145DLC.575.H.3.F-FC 3 575 1.8 - 3.0 2.5 - 4.0 15 99153146DLC.575.I.3.G-FC 3 575 4.0 - 5.5 4.0 - 6.3 20 99153147DLC.575.J.3.H-FC 3 575 7.5 6.0 - 10.0 25 99153148DLC.575.C.3.I-FC 3 575 8.0 - 10.0 9.0 - 14.0 30 99153149DLC.575.D.3.J-FC 3 575 12.5 - 15.0 13.0 - 18.0 40 99153150



Overload range[A]


[A]

Product number

DLC.208/230.B.1-PT 1 208/230 2.0 10.0 - 40.0 25 99165674DLC.208/230.A.3.A-PT 3 208/230 1.5 - 1.8 2.0 - 6.3 20 99107067DLC.208/230.B.3.B-PT 3 208/230 2.0 - 3.0 5.7 - 18.9 20 99107068DLC.208/230.B.3.C-PT 3 208/230 2.0 - 7.5 9.0 - 30.0 50 99107069DLC.208/230.C.3.D-PT 3 208/230 8.0 - 10.0 15.0 - 45.0 75 99107070DLC.208/230.D.3.D-PT 3 208/230 12.5 - 15.0 15.0 - 45.0 120 99107071DLC.460.E.3.A-PT 3 460 1.5 - 4.0 2.0 - 6.3 20 99107072DLC.460.F.3.B-PT 3 460 5.5 - 10.0 5.7 - 18.9 40 99107073DLC.460.D.3.C-PT 3 460 12.5 - 15.0 9.0 - 30.0 50 99107074DLC.575.G.3.E-PT 3 575 1.5 1.6 - 2.5 15 99153157DLC.575.H.3.F-PT 3 575 1.8 - 3.0 2.5 - 4.0 15 99153158DLC.575.I.3.G-PT 3 575 4.0 - 5.5 4.0 - 6.3 20 99153159DLC.575.J.3.H-PT 3 575 7.5 6.0 - 10.0 25 99153160DLC.575.C.3.I-PT 3 575 8.0 - 10.0 9.0 - 14.0 30 99153161DLC.575.D.3.J-PT 3 575 12.5 - 15.0 13.0 - 18.0 40 99153162

SLC and DLC Product number

**Battery backup with charger (for alarm only)

Consult factory

**Intrinsically safe relay for float inputs with UL698A Listing (FC only)

**Intrinsically safe barrier/relay for pressure transducer and backup floats, UL698A (PT only)

Padlockable main disconnect switch

Phase monitor with fusing

304 Stainless steel panel

Enclosure adder

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9. Functions
The SLC and DLC control panels include an easy-to-use programmable logic unit that incorporates many timing and logic functions.

The pump control panel features alarm and data screens to assist with monitoring and troubleshooting. The up- and down-arrow buttons allow you to navigate between the screens.

See the following table and screen navigation section for more details.

Alarm screens will only be displayed when alarms are active. The alarm screen shows the date and time when the alarm started.

9.1 SLC, float-switch-controlled option

9.2 SLC, transducer-controlled option

Alarm screen Alarm text Description

1 High Level Alarm High-level alarm2 Pump Fail Alarm Pump-failure alarm

Data screen System data Description

3 Pump CT & ETM Pump cycles are shown at the top of the screen and the pump run time beneath.4 High Lvl CT High-level alarm events5 Power Fault Counters Power failures are shown at the top of the screen and the hours in service beneath.6 Pump Fault Counters Pump-failure events


1 Xducer Sig Is activated when the transducer signal is below 3 mA.

2 High Level AlarmWhen lifted, this float switch activates the alarm indication on the screen and the audible alarm.

3 Low Level AlarmWhen lowered, this float switch stops the pump and activates the indication on the screen.

4 Pump Fail AlarmIs activated when the pump overtemperature sensor, seal-failure sensor or overload relay has tripped.


5 Current Tank Level Liquid level in tank or pit in feet

6 Pump CT & ETMThe pump cycle counter is shown at the top of the screen and the pump run time in minutes beneath.

7 High Lvl CT & Low Level CTThe high-level alarm counter is shown at the top of the screen and low-level alarm counter beneath.

8 Power Faults & Operating Hr The power failure counter is shown at the top of the screen and operating hours beneath.9 Transducer Signal "Raw value of transducer reading", in mA

10 On/Off Level Settings Pump-on and -off level setpoints11 High/Low Level Settings High- and low-level alarm setpoints12 Transducer Input Transducer range and offset settings13 Minimum Run Time Minimum pump run time per cycle14 High Level Pump Run Time Minimum high level pump run time per cycle15 High Level Alarm Delay Elapsed time between high level point and alarm activation

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9.3 DLC, float-switch-controlled option

The alarm screen will only be displayed when alarms are active. The alarm screen shows the date and time when the alarm started.

9.4 DLC, transducer-controlled option

The alarm screen will only be displayed when alarms are active. The alarm screen shows the date and time when the alarm started.


1 High Level Alarm High level alarm2 Pump 1 Fail Alarm Pump 1 failure alarm3 Pump 2 Fail Alarm Pump 2 failure alarm


4 Pump 1 CT & ETM Pump 1 cycles are shown at the top of the screen and pump 1 run time beneath.5 Pump 2 CT & ETM Pump 2 cycles are shown at the top of the screen and pump 2 run time beneath.6 High Lvl CT High level alarm events

7Pump 1 & 2 Lag Event Counters

Pump 1 lag (standby) events are shown at the top of the screen and pump 2 lag (standby) events beneath.

8 Power Fault Counters Power failures are shown at the top of the screen and hours in service beneath.

9 Pump 1 & 2 Fault CountersPump 1 failure events are shown at the top of the screen and pump 2 failure events beneath.


1 Xducer Sig Is activated when the transducer signal is below 3 mA.

2 High Level AlarmWhen lifted, this float switch activates the alarm indication on the screen and the audible alarm.

3 Low Level AlarmWhen lowered, this float switch stops the pump and activates the indication on the screen.

4 Pump 1 Fail AlarmIs activated when pump 1 overtemperature sensor, seal failure sensor or overload relay has tripped.

5 Pump 2 Fail AlarmIs activated when pump 2 overtemperature sensor, seal failure sensor or overload relay has tripped.


6 Current Tank Level Liquid level in tank or pit in feet

7 Pump 1 CT & ETMPump 1 cycle counter is shown at the top of the screen and pump 1 run time in minutes beneath.

8 Pump 2 CT & ETMPump 2 cycle counter is shown at the top of the screen and pump 2 run time in minutes beneath.

9 High Lvl CT & Low Level CTHigh level alarm counter is shown at the top of the screen and low level alarm counter beneath.

10 Power Faults & Operating Hr Power failure counter is shown at the top of the screen and operating hours beneath.11 Transducer Signal Raw value of transducer reading, in mADC12 On/Off Level Settings Pump on and off level setpoints13 Lag Level Setting Lag (standby) pump on level setpoint14 High/Low Level Settings High- and low-level alarm setpoints15 Transducer Input Transducer range and offset settings16 Minimum Run Time Minimum pump run time per cycle17 High Level Pump Run Time Minimum high level pump run time per cycle18 High Level Alarm Delay Elapsed time between high level point and alarm activation

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9.5 Digital input and output screens
The pump control panel will activate various input and output screens as it operates. See fig. 20. These screens are helpful when installing and troubleshooting the control panel. The input screens will vary according to the mode of operation of the panel.

See the following tables to identify the conditions that activate the various screens.

Fig. 20 Example, digital input and output screens

9.5.1 SLC, float-switch-controlled option

9.5.2 SLC, transducer-controlled option

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Activated input

Inputs 1-9

Inputs 10-19

Inputs 20-24

Input screen Output screen

Outputs 1-9

Outputs 10-16

Activated output

Input screen Function Activation condition

1 Pump Off Float Float switch in up position2 Pump On Float Float switch in up position3 High Level Alarm Float Float switch in up position4 Push To Silence Push button is pressed.

5 Pump FaultPump seal-failure sensor, overtemperature sensor, or overload protection has tripped.

Output screen Function Activation condition

6 Pump Pump is called to run.7 Alarm Light Alarm light is activated.8 Audible Alarm Audible alarm is activated.


1 Redundant Off and Low Level Alarm Float Float switch in up position2 High Level Float Float switch in up position3 Push to Silence Push button is pressed.

4 Pump FaultPump seal-failure sensor, overtemperature sensor, or overload protection has tripped.

5 Not Used NA6 Not Used NA7 Transducer (analog signal) 4-20 mADC


8 Pump 1 Pump is called to run.9 Pump 2 Pump is called to run.

10 Level Alarm Light Level alarm condition exists.11 Audible Alarm Audible alarm is activated.

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9.5.3 DLC, float-switch-controlled option

9.5.4 DLC, transducer-controlled option

Inputs Function Activation condition

1 Pump(s) Off Float Float switch in up position2 Lead Pump On Float Float switch in up position3 Lag Pump On Float Float switch in up position4 High Level Alarm Float Float switch in up position5 Push To Silence Push button is pressed

6 Pump 1 FaultPump 1 seal-failure sensor, overtemperature sensor, or overload protection has tripped.


Outputs Function Activation condition


10 Alarm Light Alarm light is activated.11 Audible Alarm Audible alarm is activated.


1Redundant Off and Low Level Alarm Float

Float switch in up position

2 High Level Float Float switch in up position3 Push to Silence Push button is pressed.



6 Not Used NA7 Transducer (analog signal) 4-20 mADC



10 Level Alarm Light Level alarm condition exists.11 Audible Alarm Audible alarm is activated.

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9.6 Screen navigation
The screens are arranged in the order shown in fig. 21. You can use the up and down arrow buttons to navigate between the screens. Frequently used screens are outlined in bold. Some screens may not be applicable.

Fig. 21 Screen navigation

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System alarm screen

System data screen

Time and Date

Digital Inputs(1-24)

Digital Outputs(1-16)

Analog Inputs(1-3)

Analog Inputs(4-6)

Analog Inputs(7-8)

Analog Outputs

(1-2)

Memory(1-27) ESC+C

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9.7 Control panel operation

9.7.1 SLC, float-switch-controlled option

The control panel supports two different modes of operation based on selected parameter settings. See section 9.9 Adjustable parameters for information on how to change the mode of operation and other adjustable parameters.

Your control panel can perform the float functions listed below. Depending on the application, some functions may be omitted or combined.

* To determine a pump seal failure, overtemperature or overload trip, open the dead-front inner door and look for the following relay conditions:Overload relay: When the overload relay trips, the trip indicator is present on the device. The overload relay can be reset by pressing the blue reset button. The overload relay can be switched to manual or automatic resetting.K02: This relay is active when the overtemperature sensor in the pump has tripped.K03: This relay is active when the seal-failure sensor in the pump has tripped.

High Level Alarm

• This float switch activates the alarm indication on the screen and the audible alarm when lifted for longer than the high-level alarm delay.

• Press the Push-to-Silence button on the side of the control panel to silence the audible alarm.• The alarm indication on the screen will remain on until the float switch is lowered, and the audible alarm

will reactivate in 12 hours if the alarm condition is not corrected.

Pump On• This float switch starts the pump when lifted.• The pump will run for the duration of the minimum run time or until the pump-off float switch (if used) is

lowered.Pump Off • This float switch stops the pump(s) when lowered if the minimum run time has elapsed.

Pump Fault*

• The pump failure is activated when the pump overtemperature sensor, seal failure sensor, or overload protection has tripped.

• A pump failure will activate the alarm indictor light, the audible alarm, and an alarm message on the user's screen.

• Press the Push-to-Silence button on the side of the control panel to silence the audible alarm.

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9.7.2 SLC, transducer-controlled option
The control panel can perform the functions listed below. Depending on the number of float switches for your application, some functions may be omitted or combined.

* To determine a pump seal failure, overtemperature or overload trip, open the dead-front inner door and look for the following relay conditions:Overload relay: When the overload relay trips, the trip indicator is present on the device. The overload relay can be reset by pressing the blue reset button. The overload relay can be switched to manual or automatic resetting.K02: This relay is active when the overtemperature sensor in the pump has tripped.K03: This relay is active when the seal-failure sensor in the pump has tripped.

High Level Alarm

• This preset level activates the alarm indication on the screen and the audible alarm when the liquid level is high for longer than the high-level alarm delay (factory-set for 5 seconds).

• Press the Push-to-Silence button on the side of the control panel to silence the audible alarm.• The alarm indication on the screen will remain on until the level is lowered, and the audible alarm will

reactivate in 12 hours if the alarm condition is not corrected.

Pump On• The pump will start at the preset pressure of the level sensor for pump operation.• The pump will run until the level sensor pressure is reduced below the preset pump-off level.

Pump Off• The pump will stop when the level sensor pressure falls below the preset pump-off level if the minimum

time delay has elapsed.

Redundant Off and Low Level alarm

• The pump will stop when the liquid level is lowered to this level for more than two seconds.• Pumping will be disabled in both the automatic modes.• The alarm indication on the screen and the audible alarm will be activated.• Press the Push-to-Silence button on the side of the control panel to silence the audible alarm.• The alarm indication on the screen will remain on until the liquid level is raised.• The audible alarm will reactivate in 12 hours if the alarm condition is not corrected.

Transducer Failure• If the transducer signal drops below 3 mADC, a transducer failure alarm will be activated.• The alarm indication on the screen and the audible alarm will be activated.• A message will be shown on the screen.

Backup float switches

High Level Alarm

• This float switch activates the alarm indication on the screen and the audible alarm when lifted for longer than the high-level alarm delay (factory set for 5 seconds).

• This float switch also starts the pump.• The pump will run until the high-level pump run time has elapsed.• Press the Push-to-Silence button on the side of the control panel to silence the audible alarm.• The alarm indication on the screen will remain on until the float switch is lowered, and the audible alarm


Redundant Off and Low Level Alarm

• This float switch stops the pump when lowered for more than two seconds.• This float switch is a backup float switch which will operate if the transducer fails.• Pumping will be disabled in both the automatic and manual modes.• This float switch also activates the alarm indication on the screen and the audible alarm.• Press the Push-to-Silence button on the side of the control panel to silence the audible alarm.• The alarm indication on the screen will remain on until the float switch is lifted.• The audible alarm will reactivate in 12 hours if the alarm condition is not corrected.

Pump Fault*

• The pump failure is activated when the pump overtemperature sensor, seal failure sensor, or overload relay has tripped.

• A pump failure will activate the alarm indication on the screen, the audible alarm, and an alarm message on the user's screen.


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9.7.3 DLC, float-switch-controlled option

The control panel supports two different modes of operation based on selected parameter settings. See section 9.9 Adjustable parameters for information on how to change the mode of operation and other adjustable parameters.

Your control panel can perform the functions listed below. Depending on the application, some functions may be omitted or combined.

* To determine a pump seal failure, overtemperature or overload failure trip, open the dead-front inner door and look for the following relay conditions:Overload relay: When the overload relay trips, the trip indicator is present on the device. The overload relay can be reset by pressing the blue reset button. The overload relay can be switched to manual or automatic resetting.K02: This relay is active when the overtemperature sensor in the pump has tripped.K03: This relay is active when the seal-failure sensor in the pump has tripped.K04: This relay is active when the overtemperature sensor in the pump has tripped.K05: This relay is active when the seal-failure sensor in the pump has tripped.

High Level Alarm

• This float switch activates the alarm indication on the screen and the audible alarm when lifted for longer than the high-level alarm delay.



Lag Pump On• This float switch starts the lag (standby) pump when lifted (both pumps will be on).• Both pumps will run until the pump(s) off float switch (if used) is lowered.

Lead Pump On• This float switch starts the lead (duty) pump when lifted.• The pump will run for the duration of the minimum run time or until the pump(s) off float switch (if used)

is lowered.Pump(s) Off • This float switch stops the pump(s) when lowered if the minimum run time has elapsed.

Pump Fault*




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9.7.4 DLC, transducer-controlled option
The control panel can perform the functions listed below. Depending on the number of float switches for your application, some functions may be omitted or combined.

* To determine a pump seal failure, overtemperature or overload failure trip, open the dead-front inner door and look for the following relay conditions:Overload relay: When the overload relay trips, the trip indicator is present on the device. The overload relay can be reset by pressing the blue reset button. The overload relay can be switched to manual or automatic resetting.K02: This relay is active when the overtemperature sensor in the pump has tripped.K03: This relay is active when the seal-failure sensor in the pump has tripped.K04: This relay is active when the overtemperature sensor in the pump has tripped.K05: This relay is active when the seal-failure sensor in the pump has tripped.

High Level Alarm

• This preset level activates the alarm indication on the screen and the audible alarm when the level is high for longer than the high-level alarm delay (factory set for 5 seconds).

• Press the Push-to-Silence button on the side of the control panel to silence the audible alarm.• The alarm indication on the screen will remain on until the level is lowered, and the audible alarm will

reactivate in 12 hours if the alarm condition is not corrected.

Lag Pump On

• The lag (standby) pump (both pumps will be on) will start at the preset pressure of the level sensor for lag (standby) operation.

• Both pumps will continue to run together until the level sensor pressure reduces below the preset Pumps Off level.

Lead Pump On• The lead (duty) pump will start at the preset pressure of the level sensor for lead (duty) pump operation.• The lead (duty) pump will run until the level sensor pressure is reduced below the preset pumps-off

level.

Pumps Off• Both pumps will stop when he level sensor pressure is reduced below the preset pumps-off level if the

delay has elapsed.

Redundant Off & Low Level Alarm

• The pumps will stop when the liquid level is lowered to this level for more than two seconds.• Pumping will be disabled in both the automatic modes.• The alarm indication on the screen and the audible alarm will be activated.• Press the Push-to-Silence button on the side of the control panel to silence the audible alarm.• The alarm indication on the screen will remain on until the liquid level is raised.• The audible alarm will reactivate in 12 hours if the alarm condition is not corrected.

Transducer Failure• If the transducer signal drops below 3 mADC, a transducer failure alarm will be activated.• The alarm indication on the screen and the audible alarm will be activated.• A message will be shown on the screen.

Backup float switches

High Level Alarm

• This float switch activates the alarm indication on the screen and the audible alarm when lifted for longer than the high-level alarm delay (factory set for 5 seconds).

• This float switch also starts both pumps. Both pumps will run until the high-level pump run time has elapsed.



Redundant Off and Low Level Alarm

• This float switch stops the pumps when lowered for more than two seconds.• This float switch is a backup float switch which will operate if the transducer fails.• Pumping will be disabled in both the automatic and manual modes.• This float switch also activates the alarm indication on the screen and the audible alarm.• Press the Push-to-Silence button on the side of the control panel to silence the audible alarm.• The alarm indication on the screen will remain on until the float switch is lifted. • The audible alarm will reactivate in 12 hours if the alarm condition is not corrected.

Pump Fault*




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9.8 Pump alternation

9.8.1 DLC models

DLC pump control panels support four different modes of operation relating to the pump alternation which are based on selected parameter settings. Additionally, the panel can be set to alternate pumps in the event of a failure.

See section9.9 Adjustable parameters for information on how to adjust these parameters.

Alternating (default)• Parameters "Pmp1Lead" and "Pmp2Lead" are set to "Off".• The (duty) and lag (standby) pumps will alternate for each cycle.• This mode provides equal wear on both pumps and is recommended for most applications.

Pump 1 Lead

• Parameter "Pmp1Lead" is set to "On" and parameter "Pmp2Lead" is set to "Off".• The lead (duty) pump function is locked to pump 1 and the lag (standby) pump function is locked to

pump 2.• No alternation will occur.• Pump 1 will be the primary pump for the system.• Pump 2 will only be used during high-flow conditions.

Pump 2 Lead

• Parameter "Pmp1Lead" is set to "Off" and parameter "Pmp2Lead" is set to "On".• The lead (duty) pump function is locked to pump 2 and the lag (standby) pump function is locked to

pump 1.• No alternation will occur.• Pump 2 will be the primary pump for the system.• Pump 1 will only be used during high flow conditions.

Both Pumps • Parameters "Pmp1Lead" and "Pmp2Lead" are set to "On". Both pumps will run in every cycle.

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9.9 Adjustable parameters
SLC and DLC pump control panels include an easy-to-use programmable logic unit that incorporates many timing and logic functions.

The unit has been programmed at the factory for the control functions required. The unit includes adjustable operational parameters and viewable monitoring information. Some operational parameters may need changing for your particular application.

SLC and DLC pump control panels use block names to identify the various parameters (please refer to the screen of the logic controller face inside the enclosure).

9.9.1 Block names, SLC float-switch-controlled option

The following block types are used for SLC, float-switch-controlled option.

All adjustable parameters DO NOT use the same type of blocks. Check the block types to determine which steps apply to your application.

Example, changing adjustable parameter blocks, SLC, float-controlled option

Block names Description Factory default setting Time range Block type Timed/demand

HLA Dly High-level alarm delay 5 seconds MM:SS Timer BothMinRunT Minimum pump run time 1 second MM:SS Timer Demand

Step Action Illustration

1

• Press the " " button repeatedly until the display does not change.• To begin the configuration process, press the "ESC" button.

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• Press the " " button to select "Set Param".• Then press the "OK" button.

WarningDo not select "Stop". Doing so may erase the panel programming, which cannot be restored without the use of an EEPROM card, which is not included with the panel.If "Stop" is selected accidentally, a confirmation screen will appear. Select "No" and press the "OK" button immediately. T

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Example, changing adjustable parameter timer blocks, SLC, float-controlled option

Timer blocks have three timebase units that can be used; s = seconds, m = minutes, h = hours.

• If an "h" appears after the timer setting, the time will be HH:MM (e.g. 01:55h = 1 hour and 55 minutes).

• If an "m" appears after the timer setting, the time will be MM:SS (e.g. 05:00m = 5 minutes and 0 seconds).

• If an "s" appears after the timer setting, the time will be SS.ss (e.g. 25:13s = 25.13 seconds).


1

• Press the " " or " " button to view the parameter values.• In this example, "Off Time" is being viewed.

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• The first line indicates the set value for the parameter. In this example, the set time is 1 hour and 55 minutes, "T=01:55h."

• To change the set value for the parameter, press the "OK" button.• The second line indicates, in real time, how much time has elapsed of the cycle that is

currently in process. The current value of the parameter is 45 minutes, "Ta=00:45."

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• The cursor will appear in the set value.• To select the digit to be changed, press the " " or " " button.• To change the value of a digit, press the " " or " " button.• In this example, the set value has been changed from 1 hour and 55 minutes to 58

minutes and 15 seconds. (The timebase can be changed from hours = h to minutes = m or seconds = s by moving the cursor to the far right and pressing the " " or " " button). T

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• When the desired time value has been entered, press the "OK" button.• The new time value will now be in effect.

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• Press the "ESC" button twice to exit parameter mode.

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Example, changing adjustable parameter soft-button blocks, SLC, float-controlled option

1

• Press the " " or " " button to view the parameter values.• In this example, "Pmp1Lead" is being viewed.

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• The bottom line indicates the current state of the soft button switch.• In this example, the soft button is set to "Off".• To change the set value for the parameter, press the "OK" button.

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• The cursor will appear on the switch parameter.• To change the value of the soft button switch, press the " " or " " button.• In this example, the set value has been changed from "Off" to "On".

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• When the desired value has been entered, press the "OK" button.• The new value will now be in effect.

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9.9.2 Block names, SLC, transducer-controlled option

The following block names are used for SLC, transducer-controlled option.

All adjustable parameters DO NOT use the same type of blocks. Check the block types below to determine which steps apply to your application.

Example, changing the adjustable parameter screens, SLC transducer-controlled option

See the below example of the Off/On level settings and how to navigate through the screens.

Screen names DescriptionUnits of

measurementDefault setting

On Level Tank level at which the lead (duty) pump starts. feet 12.0Off Level Tank level at which the pump stops. feet 9.0High Level Alarm Tank level at which the high-level alarm is activated. feet 14.0Low Level Alarm Tank level at which the low-level alarm is activated. feet 3.0

Xducer RangeThe full range of the transducer (NOT the tank height), i.e. the 4-20 mA signal from the transducer equals 0 - Xducer Range.

feet 15.0

Xducer OffsetThe distance between the bottom of the transducer and the bottom of the tank.

feet 0.5

Minimum Run Time The minimum pump run time for an automatic cycle. seconds 2.0High Level Pump Run Time The minimum pump run time during a high-level state. minutes 1.0High Level Alarm Delay The time between the high-level state and alarm status. seconds 5.0


1

• Press the "ESC" button and hold it down until the blinking underscore appears (approximately 3 seconds).

• Then press the "OK" button.• The blinking underscore will change to a blinking cursor.

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2

• Press the " " or " " button to move the cursor to the digit(s) that need to be changed; note that on the On Level setting the decimal goes away but the tenths spot is still active.

• To change the value, use the " " or " " buttons.• When the new value has been entered, press "OK".• The cursor will change back to an underscore.

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• At this point, the blinking underscore should still be present; by pressing the " " button you can scroll to the lower value and repeat steps 1-2 to change its value.

• When finished, press "OK" and the cursor will change to an underscore.• Press the "ESC" button twice to exit Parameter mode.

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Example, changing adjustable parameter soft-button blocks, SLC transducer-controlled option
See the below example of the lead (duty) and lag (standby) pump settings and how to navigate through the screens.


1


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9.9.3 Block names, DLC, float-switch-controlled option

The following block names are used.


Example, changing adjustable parameter blocks, DLC, float-controlled option

Block names Description Factory default setting Time range Block type Timed/Demand

HLA Dly High-level alarm delay 5 seconds MM:SS Timer BothMinRunT Minimum pump run time 1 second MM:SS Timer DemandPmp1Lead Pump 1 as lead (duty) pump Off On/Off Soft button BothPmp2Lead Pump 2 as lead (duty) pump Off On/Off Soft button Both


1


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Example, changing adjustable parameter timer blocks, DLC, float-controlled option
Timer blocks have three time base units that can be used; s = seconds, m = minutes, h = hours.

• If an "h" appears after the timer setting, then the time will be HH:MM (e.g. 01:55h = 1 hour and 55 minutes).

• If an "m" appears after the timer setting, then the time will be MM:SS (e.g. 05:00m = 5 minutes and 0 seconds).

• If an "s" appears after the timer setting, then the time will be SS.ss (e.g. 25:13s = 25.13 seconds).


1

• Press the " " or " " button to view the parameter values.• In this example, "Off Time" is being viewed.

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• The first line indicates the set value for the parameter. In this example, the set time is 1 hour and 55 minutes, "T=01:55h."

• To change the set value for the parameter, press the "OK" button.• The second line indicates, in real time, how much time has elapsed of the cycle that is

currently in process. The current value of the parameter is 45 minutes, "Ta=00:45."

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3

• The cursor will appear in the set value.• To select the digit to be changed, press the " " or " " button.• To change the value of a digit, press the " " or " " button.• In this example, the set value has been changed from 1 hour and 55 minutes to 58

minutes and 15 seconds. (The time base can be changed from hours = h to minutes = m or seconds = s by moving the cursor to the far right and pressing the " " or " " button). T

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• When the desired time value has been entered, press the "OK" button.• The new time value will now be in effect.

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Example, changing adjustable parameter soft-button blocks, DLC, float-controlled option


1

• Press the " " or " " button to view the parameter values.• In this example "Pmp1Lead" is being viewed.

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2

• The bottom line indicates the current state of the soft-button switch.• In this example, the soft-button is set to "Off".• To change the set value for the parameter, press the "OK" button.

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• The cursor will appear on the switch parameter.• To change the value of the soft-button switch, press the " " or " " button.• In this example, the set value has been changed from "Off" to "On".

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• When the desired value has been entered, press the "OK" button.• The new value will now be in effect.

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9.9.4 Block names, DLC, transducer-controlled option
The following block names are used.


Example, changing the adjustable parameter screens, DLC, transducer-controlled option

See the following example of the Off/On level settings and how to navigate through the screens.

Screen names DescriptionUnits of

measurementDefault setting

On Level Tank level at which the lead (duty) pump starts. feet 12.0Off Level Tank level at which the lead (duty) pump stops. feet 9.0Lag Level Tank level at which the lag (standby) pump starts feet 13.0High Level Alarm Tank level at which the high-level alarm is activated. feet 14.0Low Level Alarm Tank level at which the low-level alarm is activated. feet 3.0

Xducer RangeThe full range of the transducer (not the tank height), i.e. the 4-20 mA signal from the transducer equals 0 - Xducer Range.

feet 15.0

Xducer OffsetThe distance between the bottom of the transducer and the bottom of the tank.

feet 0.5

Minimum Run Time The minimum pump run time for an automatic cycle. seconds 2.0High Level Pump Run Time The minimum pump run time during a high-level state. minutes 1.0High Level Alarm Delay The time between the high-level state and alarm status. seconds 5.0

DLC adjustable parameter soft-button blocks

Block names Description Factory default setting Block type

Pmp1Lead Pump 1 as lead (duty) pump Off Soft buttonPmp2Lead Pump 2 as lead (duty) pump Off Soft button


1

• Press the "ESC" button and hold it down until the blinking underscore appears (approximately 3 seconds).

• Then press the "OK" button.• The blinking underscore will change to a blinking cursor.

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• Press the " " or " " button to move the cursor to the digit(s) that need to be changed; note that on the On Level setting the decimal goes away but the tenths spot is still active.

• To change the value, use the " " or " " buttons.• When the new value has been entered, press "OK".• The cursor will change back to an underscore.

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• At this point, the blinking underscore should still be present.• By pressing the " " button, you can scroll to the lower value and repeat steps 1-2 to

change its value. • When finished, press "OK" and the cursor will change to an underscore.• Press the "ESC" button twice to exit Parameter mode.

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Example, changing adjustable parameter soft-button blocks, DLC, transducer-controlled option

See the below example of the lead (duty) and lag (standby) pump settings and how to navigate through the screens.


1


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• Press the " " or " " button to view the parameter values.• In this example, "P1&3Lead" is being viewed.

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• The bottom line indicates the current state of the soft-button switch.• In this example, the soft-button is set to "On".• To change the set value for the parameter, press the "OK".

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• The cursor will appear on the switch parameter.• To change the value of the soft-button switch, press the " " or " " button.• In this example, the set value has been changed from "On" to "Off".

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• When the desired time value has been entered, press the "OK" button.• The new value will now be in effect.

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10. Servicing the product 10.1 Maintaining the product
During normal application and operation, the SLC, DLC pump control panels are maintenance-free.

However, it is advisable to carry out minor checks of the SLC or DLC pump control panel, pump pits, tanks, pumps, etc. at suitable intervals.

These checks should be carried out by authorized personnel.

• Check the gaskets of the SLC or DLC control panel cabinet front and those of the Pg cable entries.

• Check the cable entries for the explosion hazard area.

• Check for possible deposits/sludge build-up in the pump pit/tank. Sludge may settle in areas with almost stagnant liquid.

• Check for beginning sludge build-up around the float switches, or on the float switch.

• Check for possible blockage on the suction side of the pump.

• A blockage will typically be a large solid object.

• If the SLC or DLC control panel has been installed in a particularly aggressive environment, check the motor protection contacts for corrosion. In typical installations, the motor protection contacts will work for several years and do not require any inspection.


Death or serious personal injury- Appropriate PPE (personal protective equipment)

and tools are required when working on this equipment.



liquid which could be constituted as being hazardous to health, clean and vent pumps, pits, etc. according to local regulations.







The above list is not complete. The SLC or DLC control panel may be installed in systems, installations and/or environments which require thorough and regular maintenance.

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11. Fault finding the product

12. Technical data



(PE) and tools while working on this equipment.







See also the Installation and Operating Instructions for the pump in question.

Fault Cause Remedy

1. The pump does not run. a) No power supply.Without battery back-up:None of the indicator lights are on.With battery back-up (accessory):The indicator lights are on.

Switch on the power supply.

b) The Automatic/Manual/Off toggle switch is in the Off position.

Push the Automatic/Manual/Off toggle switch to Manual or Automatic.

c) The control circuit fuses are blown. Check and eliminate the cause.Replace the control circuit fuses.

d) The overload relay has cut out the pump (the red indicator light for pump fault is permanently on).

Check the pump/pit.

e) The overtemperature sensor in the motor windings has cut out the pump. The red indicator light for pump fault is flashing.

Allow the pump to cool. After the pump cools, it will restart automatically unless the SLC or DLC toggle switch has been set to Manual. If so, the Automatic/Manual/Off toggle switch must be pushed into position Off for a short period.If the pump cut off was caused by choked level switches, these must be cleaned or replaced.

f) The control circuit for the overload relay has been broken or fails (the green indicator light indicating pump operation is permanently on).

Check the control circuit.

g) The motor/supply cable is defective. Check motor and cable.

h) The float switch(es) is (are) defective. Check cables and float switches.

2. The pump is starting/stopping too frequently.

a) The float switch(es) is (are) defective.Check cables and float switches frequently.

Voltage tolerance-15 % / +10 % of rated voltage (3 x 208/230 VAC, 3 x 460 VAC), 3 x 575 VAC)+10 % / -1 % of rated voltage (1 x 230 VAC)

Mains frequency 60 Hz

Ambient temperatureDuring operation: -22 °F to +122 °F (-30 °C to +50 °C) (must not be exposed to direct sunlight)During transport and storage: -22 °F to +140 °F (-30 °C to +60 °C)

Enclosure class NEMA4X

Outputs for alarm devicesMaximum 120 VAC / maximum 8 A / minimum 10 mA / AC 1NO/NC contact

Approvals Listed per UL 508A

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12.1 Dimensions, SLC
The description covers all SLC models, both float-switch-controlled and transducer-controlled.

Note: During a pump failure, check the relays to determine pump overtemperature or seal failure. The relay LED will be on, if active.CR1: Pump overtemperatureCR2: Pump seal failure.

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During a pump faultcheck the relays to

determine over tempor seal fail. The relaysLED will be on if "OK".

G

PUMP RUN

F1 F2 F3 F4

LOGO! TD

HAND OFF AUTO

K02 = P1 OvertempK03 = P1 Seal FailK04 = P2 OvertempK05 = P2 Seal Fail

ESC OK

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17.31 in. (440 mm)

19.3

1 in

. (49

0 m

m)

18.7

4 in

. (47

6 m

m)

pane

l mou

ntin

g12 in. (305 mm)panel mounting

9.58

in. (

243

mm

)

1

2

3

5

4

6

7 8 910

12

1617

14

11 13

15

Dead-front inner-door

layout

FRP Type 4X enclosure

Fiber glass

Front door layout

Back panel layout

Side view

Bottom view

17.31 in. (440 mm)

19

.31

in.

(49

0 m

m)

9.5

8 in

. (2

43

mm

)

12 in. (305 mm)

Panel mounting

18

.74

in.

(47

6 m

m)

Pa

ne

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ting

Pos. Description

1 Alarm beacon and alarm indicator

2 Keypad and text display

3 Pump run indicator

4 Hand - Off - Auto switch

5 Push-to-Silence alarm button

6 Audible alarm

7 Transformer

8 Fuses

9 Control panel circuit breaker

10 Pump circuit breaker

11 PLC

12 Relays

13 DC power supply

14 Motor starter

15 Overload relay

16 Terminals

17 Main power distribution blocks

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12.2 Dimensions, DLC

The description covers all DLC models, both float-switch-controlled and transducer-controlled.

Note: During a pump failure, check the relays to determine pump overtemperature or seal failure. The relay LED will be on, if active.K02: Pump 1 overtemperatureK03: Pump 1 seal failureK04: Pump 2 overtemperatureK05: Pump 2 seal failure.

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HAND OFF AUTO

During a pump fault check the relays to

determine over temp or seal fail. The relays LED will be on if "OK".

GG

PUUMP 1 RUN PUMP 2 RUN

F1 F2 F3 F4

LOGO! TD

HAND OFF AUTO

K02 = P1 OvertempK03 = P1 Seal FailK04 = P2 OvertempK05 = P2 Seal Fail

ESC OK

X 23 4

wohner

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OUTPUT30W

HIGH LEVELALARM

FRP Type 4X enclosure

Fiber glass

Front door layout

Dead-front inner-door layout

Back panel layout

Side view

Bottom view

22.2 in. (565 mm)

Panel mounting

12

.6 in

(3

20

mm

)

29

.4 in

(7

47

mm

)

31

.1 in

(6

90

mm

)

pa

ne

l mo

un

ting

21.1 in. (536 mm)

Pos. Description

1 Alarm beacon and alarm indicator

2 Keypad and text display

3 Pump 2 run indicator

4 Hand - Off - Auto switch, pump 2

5 Pump 1 run indicator

6 Hand - Off - Auto switch, pump 1

7 Push-to-Silence alarm button

8 Audible alarm

9 Transformer

10 Fuses

11 Pump circuit breaker

12 PLC

13 Relays

14 DC power supply

15 Motor starters

16 Overload relay

17 Terminals

18 Main power distribution blocks

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13. Disposing of the product
This product or parts of it must be disposed of in an environmentally sound way:

1. Use the public or private waste collection service.

2. If this is not possible, contact the nearest Grundfos company or service workshop.

Subject to alterations.

45

46

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Grundfos Water Utility Inc.3905 Enterprise CourtP.O. Box 6620Aurora, IL 60598-0620Phone: +1-630-236-5500Fax: +1-630-236-5511

GRUNDFOS Kansas City17100 West 118th TerraceOlathe, KS 66061Phone: +1-913 227 3400 Fax: +1-913 227 3500

www.grundfos.us

CanadaGRUNDFOS Canada2941 Brighton Road Oakville, Ontario L6H 6C9 CanadaPhone: +1-905 829 9533 Telefax: +1-905 829 9512

www.grundfos.ca

MéxicoGRUNDFOS MéxicoBoulevard TLC No. 15Parque Industrial Stiva AeropuertoC.P. 66600 Apodaca, N.L. MéxicoPhone: +52-81-8144 4000 Telefax: +52-81-8144 4010

www.grundfos.mx

www.grundfos.us

L-SLC-TL-01

98406491 XX17

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Documents

Simplex and Duplex pump control panels - Grundfosnet.grundfos.com/Appl/ccmsservices/public/... · The SLC and DLC control panel product range comprises up to 45 A / 15 hp (P2), direct-on-line