Grundfos CRE Series, CRIE Series, CRNE Series, SPKE Series, MTRE Series Installation And Operating Instructions Manual

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GRUNDFOS INSTRUCTIONS

CRE, CRIE, CRNE, SPKE, CRKE, MTRE, CME

Grundfos E-pumps with MLE frequency-controlled permanent-magnet motors

Installation and operating instructions

English (US)

English (US) Installation and operating instructions

Original installation and operating instructions.

CONTENTS

1. Limited warranty

2. Symbols used in this document

3. Abbreviations and definitions

4. General information

5. General description

5.1 Pumps without factory-fitted sensor

5.2 Pumps with factory-fitted pressure sensor

5.3 Settings

5.4 Radio communication

5.5 Battery

6. Mechanical installation

6.1 Mounting

6.2 Cable entries

6.3 Ensuring motor cooling

6.4 Outdoor installation

6.5 Drain holes

7. Electrical installation

7.1 Protection against electric shock, indirect contact

7.2 Power supply

7.3 Additional protection

7.4 Connection terminals

7.5 Signal cables

7.6 E-pump electrical connections

7.7 Bus connection cable

8. Operating conditions

8.1 Maximum number of starts and stops

8.2 Ambient temperature

8.3 Installation altitude

8.4 Air humidity

8.5 Motor cooling

9. Operating and control modes

9.1 Overview

9.2 Operating mode

9.3 Control mode

10. User interfaces

10.1 Standard control panel

10.2 Changing the position of the control panel

10.3 R100 remote control

10.4 Grundfos GO Remote

11. External setpoint signal

11.1 Operation with sensor feedback

11.2 Constant-curve operation

12. Bus signal

13. Priority of settings

14. Grundfos Eye

15. Signal relays

16. Megging

17. Technical data, single-phase motors

17.1 Supply voltage

17.2 Leakage current

18. Technical data, three-phase motors

18.1 Supply voltage

18.2 Leakage current

Page

11 11 12

12 12 12 13 13

13 13 14

14 17 18 32

33 34

35 35 36 37 38 38

38 38

19. Inputs/outputs

20. Other technical data

20.1 Sound pressure level

21. Disposal

1. Limited warranty

Products manufactured by GRUNDFOS PUMPS CORPORATION

(Grundfos) are warranted to the original user only to be free of

defects in material and workmanship for a period of 24 months

from date of installation, but not more than 30 months from date

of manufacture. Grundfos' liability under this warranty shall be

limited to repairing or replacing at Grundfos' option, without

charge, F.O.B. Grundfos' factory or authorized service station,

any product of Grundfos' manufacture. Grundfos will not be liable

for any costs of removal, installation, transportation, or any other

charges which may arise in connection with a warranty claim.

Products which are sold but not manufactured by Grundfos are

subject to the warranty provided by the manufacturer of said

products and not by Grundfos' warranty. Grundfos will not be

liable for damage or wear to products caused by abnormal

operating conditions, accident, abuse, misuse, unauthorized alteration or repair, or if the product was not installed in

accordance with Grundfos' printed installation and operating

instructions.

To obtain service under this warranty, the defective product must

be returned to the distributor or dealer of Grundfos' products from

which it was purchased together with proof of purchase and installation date, failure date, and supporting installation data. Unless otherwise provided, the distributor or dealer will contact Grundfos or an authorized service station for instructions. Any defective product to be returned to Grundfos or a service station must be sent freight prepaid; documentation supporting the warranty claim and/or a Return Material Authorization must be included if so instructed.

GRUNDFOS WILL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSSES, OR EXPENSES ARISING FROM INSTALLATION, USE, OR ANY OTHER CAUSES. THERE ARE NO EXPRESS OR IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, WHICH EXTEND BEYOND THOSE WARRANTIES DESCRIBED OR REFERRED TO ABOVE.

Some jurisdictions do not allow the exclusion or limitation of incidental or consequential damages and some jurisdictions do not allow limit actions on how long implied warranties may last. Therefore, the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights and you may also have other rights which vary from jurisdiction to jurisdiction.

Warnin g Prior to installation, read these installation and

operating instructions. Installation and operation must comply with local regulations and accepted codes of good practice.

38 39

2. Symbols used in this document 3. Abbreviations and definitions

Caution

Note

Warnin g If these safety instructions are not observed,

it may result in personal injury.

Warnin g If these instructions are not observed, it may lead

to electric shock with consequent risk of serious personal injury or death.

Warnin g The surface of the product may be so hot that

it may cause burns or personal injury.

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

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

AI Analog input. AL Alarm, out of range at lower limit. AO Analog output. AU Alarm, out of range at upper limit. CIM Communication interface module.

Current sinking

Current sourcing

DI Digital input. DO Digital output. ELCB Ground leakage circuit breaker.

GDS

GENIbus Proprietary Grundfos fieldbus standard.

GFCI

GND Ground. Grundfos Eye Status indicator light.

LIVE

PE Protective ground.

PELV

SELV

The ability to draw current into the terminal and guide it towards GND in the internal circuitry.

The ability to push current out of the terminal and into an external load which must return it to GND.

Grundfos Digital Sensor. Factory-fitted sensor in some Grundfos pumps.

Ground fault circuit interrupter. (USA and Canada).

Low voltage with the risk of electric shock if the terminals are touched.

Open collector: Configurable open-collector output.

Protective extra-low voltage. A voltage that cannot exceed ELV under normal conditions and under single-fault conditions, except ground faults in other circuits.

Safety extra-low voltage. A voltage that cannot exceed ELV under normal conditions and under single-fault conditions, including ground faults in other circuits.

English (US)

Note

4. General information

These installation and operating instructions are a supplement to the installation and operating instructions for the corresponding standard pumps CR, CRI, CRN, CRK, SPK, MTR and CM.

For instructions not mentioned specifically in this manual, see the installation and operating instructions for the standard pump.

5. General description

Grundfos E-pumps are fitted with frequency-controlled permanent-magnet motors for single-phase or three-phase power supply connection.

5.1 Pumps without factory-fitted sensor

The pumps have a built-in PI controller and can be set up for an external sensor enabling the control of the following parameters:

• constant pressure

• constant differential pressure

• constant temperature

• constant differential temperature

• constant flow rate

• constant level

• constant curve

• constant other value. The pumps have been factory-set to constant-curve control

mode. The control mode can be changed with the R100 or Grundfos GO Remote.

5.2 Pumps with factory-fitted pressure sensor

The pumps have a built-in PI controller and are set up with a pressure sensor enabling the control of the pump discharge pressure.

The pumps have been factory-set to constant-pressure control mode. The pumps are typically used to keep a constant pressure in variable-demand systems.

5.4 Radio communication

This product incorporates a radio module for remote control. For use in USA and Canada, see page 41.

This product can communicate with the Grundfos GO Remote and other products of the same type via the built-in radio module.

In some cases, an external antenna may be required. Only Grundfos-approved external antennas may be connected to

this product, and only by a Grundfos-approved installer.

5.5 Battery

A Li-ion battery is fitted in CRE, CRIE, CRNE, CRKE, SPKE and MTRE pumps. The Li-ion battery complies with the Battery Directive (2006/66/EC). The battery does not contain mercury, lead and cadmium.

6. Mechanical installation

Warnin g Installation and operation must comply with local

regulations and accepted codes of good practice.

6.1 Mounting

The pump must be secured to a solid foundation by means of bolts through the holes in the flange or baseplate.

In order to maintain the UR mark, follow the additional installation procedures on page 41.

6.2 Cable entries

The motor has four M20 screwed cable entries fitted with blind plugs from factory.

The following cable glands are included:

• 2 x M20 cable gland, sensor/signal cables

• 1 x M20 cable gland, power supply cable.

5.3 Settings

The description of settings applies both to pumps without factory-fitted sensor and to pumps with a factory-fitted pressure sensor.

Setpoint

The desired setpoint can be set in three ways:

• directly on the pump control panel

• via an input for external setpoint signal

• by means of Grundfos wireless remote control R100 or Grundfos GO Remote.

Other settings

All other settings can only be made by means of the R100 or Grundfos GO Remote.

Important parameters, such as actual value of control parameter, power consumption, etc. can be read via the R100 or Grundfos GO Remote.

If special or customized settings are required, use Grundfos PC Tool E-products. Contact your local Grundfos company for more information.

6.3 Ensuring motor cooling

Note

B3 B14 B5

In order to ensure sufficient cooling of the motor, the distance (D) between the end of the fan cover and a wall or other fixed objects must always be at least 2", irrespective of motor size. See fig. 1.

7. Electrical installation

Carry out the electrical connection according to local regulations. Check that the supply voltage and frequency correspond to the

values stated on the nameplate.

Warnin g Do not make any connections in the terminal box

unless the power supply has been switched off for at least 5 minutes.

Make sure that the power supply cannot be accidentally switched on.

The motor must be ground and protected against indirect contact in accordance with local regulations.

If the power supply cable is damaged, it must be replaced by the manufacturer, the manufacturer's service partner or a similarly qualified person.

English (US)

Fig. 1 Minimum distance (D) from the motor to a wall or other

fixed objects

6.4 Outdoor installation

When installed outdoors, the motor must be provided with a suitable cover to avoid condensation on the electronic components. See fig. 2.

When fitting a cover to the motor, observe the guideline in section 6.3 Ensuring motor cooling.

The cover must be sufficiently large to ensure that the motor is not exposed to direct sunlight, rain or snow. Grundfos does not supply covers. We therefore recommend that you have a cover built for the specific application. In areas with high air humidity, we recommend that you enable the built-in standstill heating function. See section Standstill heating, page 31.

Fig. 2 Examples of covers (not supplied by Grundfos)

6.5 Drain holes

When the motor is installed in moist surroundings or areas with high air humidity, the bottom drain hole should be open.

The enclosure class of the motor will then be lower. The open drain hole helps prevent condensation in the motor as it will make the motor self-venting and allow water and humid air to escape.

The motor has a plugged drain hole on the drive side. The flange can be turned 90 ° to both sides or 180 °.

TM05 5236 3512

The user or the installer is responsible for the installation of correct grounding and protection according to local regulations. All operations must be carried out by a qualified electrician.

7.1 Protection against electric shock, indirect contact

Warnin g The motor must be grounded and protected

against indirect contact in accordance with local regulations.

Protective-ground conductors must always have a yellow/green (PE) or yellow/green/blue (PEN) color marking.

7.1.1 Protection against power supply voltage transients

The motor is protected against power supply voltage transients in accordance with EN 61800-3.

7.1.2 Motor protection

The motor requires no external motor protection. The motor incorporates thermal protection against slow overloading and blocking.

7.1.3 Backup fuses

For recommended fuse sizes, see page 41.

TM05 3496 3512TM02 9037 1604

Fig. 3 Drain holes

English (US)

ELCB

(GFCI)

Caution

Note

ELCB

(GFCI)

7.2 Power supply

7.2.1 Single-phase supply voltage

• 1 x 200-240 V - 10 %/+ 10 %, 50/60 Hz, PE.

Check that the supply voltage and frequency correspond to the values stated on the nameplate.

The wires in the motor terminal box must be as short as possible. Excepted from this is the separated ground conductor which must be so long that it is the last one to be disconnected in case the cable is inadvertently pulled out of the cable entry.

For maximum backup fuse, see section 17.1 Supply voltage.

Fig. 4 Example of a power-connected motor.

7.2.2 Three-phase supply voltage

• 3 x 440-480 V - 10 %/+ 10 %, 50/60 Hz, PE.

In order to avoid loose connections, ensure that the terminal block for L1, L2 and L3 is pressed home in its socket when the supply cable has been connected.

Corner grounding is not allowed for supply voltages above 3 x 480 V, 50/60 Hz.

Check that the supply voltage and frequency correspond to the values stated on the nameplate.

For maximum backup fuse, see section 18.1 Supply voltage.

TM05 4034 1912TM05 3494 1512

TM05 3942 1812TM05 3495 1512

Fig. 6 Example of a power-connected motor

Fig. 5 Power connection, single-phase motors

Fig. 7 Power connection, three-phase motors

7.3 Additional protection

Note

ELCB (GFCI)

Note

7.3.1 Single-phase motors

If the motor is connected to an electric installation where a ground leakage circuit breaker (ELCB) or ground fault circuit interrupter (GFCI) is used as additional protection, this circuit breaker or interrupter must be marked with the following symbol:

When a ground leakage circuit breaker or ground fault circuit interrupter is selected, the total leakage current of all the electrical equipment in the installation must be taken into account.

The leakage current of the motor can be found in section

17.2 Leakage current.

7.3.2 Three-phase motors

• It must be suitable for handling leakage currents and cutting-in with short pulse-shaped leakage.

• It must trips out when alternating fault currents and fault currents with DC content, i.e. pulsating DC and smooth DC fault currents, occur.

For these motors a ground leakage circuit breaker or ground fault circuit interrupter, type B, must be used.

This circuit breaker or interrupter must be marked with the following symbols:

When a ground leakage circuit breaker or ground fault circuit interrupter is selected, the total leakage current of all the electrical equipment in the installation must be taken into account.

The leakage current of the motor can be found in section

18.2 Leakage current.

Protection against phase unbalance

The motor must be connected to a power supply with a quality corresponding to IEC 60146-1-1, class C, to ensure correct motor operation at phase unbalance.

This also ensures long life of the components.

7.4 Connection terminals

The descriptions and terminal overviews in this section apply to both single- and three-phase motors.

For maximum tightening torques, see section Torques, page 39.

7.4.1 Connection terminals, CRE, CRIE, CRNE, CRKE, SPKE and MTRE pumps

CRE, CRIE, CRNE, CRKE, SPKE and MTRE pumps have a number of inputs and outputs enabling the pumps to be used in advanced applications where many inputs and outputs are required.

The pumps have these connections:

• three analog inputs

• one analog output

• two dedicated digital inputs

• two configurable digital inputs or open-collector outputs

• Grundfos Digital Sensor input and output

• two Pt100/1000 inputs

• two LiqTec sensor inputs

• two signal relay outputs

• GENIbus connection.

See fig. 8.

Digital input 1 is factory-set to be start/stop input where open circuit will result in stop. A jumper has been factory-fitted between terminals 2 and

6. Remove the jumper if digital input 1 is to be used as external start/stop or any other external function.

As a precaution, the wires to be connected to the connection groups below must be separated from each other by reinforced insulation in their entire lengths.

• Inputs and outputs

All inputs and outputs are internally separated from the power-conducting parts by reinforced insulation and galvanically separated from other circuits. All control terminals are supplied by safety extra-low voltage (SELV), thus ensuring protection against electric shock.

• Start/stop: (Digital input 1) Terminals 2 and 6

• Pressure sensor: (Analog input 1) Terminals 4 and 8

• Pressure switch: (Digital input 3) Terminals 10 and 6

• External analog signal input: (Analog input 2) Terminals 7 and

• GENIbus Terminals A, Y and B

• Signal relay outputs

– Signal relay 1:

LIVE: Power supply voltages up to 250 VAC can be connected to this output. SELV: The output is galvanically separated from other circuits. Therefore, the supply voltage or safety extra-low voltage can be connected to the output as desired.

– Signal relay 2:

SELV: The output is galvanically separated from other circuits. Therefore, the supply voltage or safety extra-low voltage can be connected to the output as desired.

• Power supply (terminals N, PE, L or L1, L2, L3, PE)

A galvanically safe separation must fulfill the requirements for reinforced insulation including creepage distances and clearances specified in EN 61800-5-1.

English (US)

+24 V*

+24 V*/5 V*

+24 V*

+24 V*/5 V*

+24 V*

+24 V*/5 V*

+24 V*

+5 V*

AI2

GDS RX

GDS TX

GND

GENIbus A

GENIbus B

+5 V

+24 V

GND

GENIbus Y

GND

+5 V

DI1

AI1

DI3/OC1

LiqTec

AI3

GND

DI2

LiqTec

GND

Pt100/1000

DI4/OC2

GND

+24 V*

GND

+5 V*

Terminal Type Function

C1 Common

Normally closed contact

Normally open contact

Signal relay 1 (LIVE or SELV)

C2 Common

Normally closed contact

Normally open contact

Signal relay 2 (SELV only)

18 GND Ground

Digital input/output,

11 DI 4/O C2

configurable. Open collector: Max. 24 V

resistive or inductive. 19 Pt100/1000 input 2 Pt100/1000 sensor input 17 Pt100/1000 input 1 Pt100/1000 sensor input

Analog output: 12 AO

0-20 mA / 4-20 mA

0-10 V

9 GND Ground

Analog input: 14 AI3

0-20 mA / 4-20 mA

0-10 V

1 DI2 Digital input, configurable

21 LiqTec sensor input 1

LiqTec sensor input

(white conductor)

Ground 20 GND

(brown and black

conductors)

22 LiqTec sensor input 2

LiqTec sensor input

(blue conductor)

* If an external supply source is used, there must be a

connection to GND.

Fig. 8 Connection terminals, CRE, CRIE, CRNE, CRKE,

SPKE and MTRE pumps

Digital input/output,

10 DI3/OC1

configurable.

Open collector: Max. 24 V

resistive or inductive.

Analog input:

4AI1

0-20 mA / 4-20 mA

0.5 - 3.5 V / 0-5 V / 0-10 V

TM05 3509 3512

2 DI1 Digital input, configurable

5+5 V

Supply to potentiometer

and sensor

6 GND Ground A GENIbus, A GENIbus, A (+) Y GENIbus, Y GENIbus, GND B GENIbus, B GENIbus, B (-)

3 GND Ground

15 +24 V Supply

8 +24 V Supply

26 +5 V

Supply to potentiometer and sensor

23 GND Ground

25 GDS TX

24 GDS RX

Grundfos Digital Sensor output

Grundfos Digital Sensor input

Analog input:

7AI2

0-20 mA / 4-20 mA

0.5 - 3.5 V / 0-5 V / 0-10 V

7.4.2 Connection terminals, CME pumps

Note

The CME pump has these connections:

• two analog inputs

• two digital inputs or one digital input and one open-collector output

• Grundfos Digital Sensor input and output

• two signal relay outputs

• GENIbus connection.

See fig. 9.

Digital input 1 is factory-set to be start/stop input where open circuit will result in stop. A jumper has been factory-fitted between terminals 2 and

6. Remove the jumper if digital input 1 is to be used as external start/stop or any other external function.

As a precaution, the wires to be connected to the connection groups below must be separated from each other by reinforced insulation in their entire lengths.

• Inputs and outputs All inputs and outputs are internally separated from the power conducting parts by reinforced insulation and galvanically separated from other circuits. All control terminals are supplied by safety extra-low voltage (SELV), thus ensuring protection against electric shock.

• Start/stop: (Digital input 1) Terminals 2 and 6

• Pressure sensor: (Analog input 1) Terminals 4 and 8

• Pressure switch: (Digital input 3) Terminals 10 and 6

• External analog signal input: (Analog input 2) Terminals 7 and 23

• GENIbus Terminals A, Y and B

• Signal relay outputs

– Signal relay 1:

– Signal relay 2:

SELV: The output is galvanically separated from other circuits. Therefore, the supply voltage or safety extra-low voltage can be connected to the output as desired.

• Power supply (terminals N, PE, L or L1, L2, L3, PE)

A galvanically safe separation must fulfill the requirements for reinforced insulation including creepage distances and clearances specified in EN 61800-5-1.

English (US)

AI2

GDS RX

GDS TX

GND

GENIbus A

GENIbus B

+5 V

+24 V

GND

GENIbus Y

GND

+5 V

DI1

AI1

DI3/OC1

+24 V*

+24 V*/5 V*

+24 V*

+5 V*

+24 V*

+24 V*/5 V*

+24 V*

GND

Terminal Type Function

C1 Common

Normally closed contact

Normally open contact

Signal relay 1 (LIVE or SELV)

* If an external supply source is used, there must be a

connection to GND.

Fig. 9 Connection terminals, CME pump

C2 Common

Normally closed contact

Normally open contact

Signal relay 2 (SELV only)

Digital input/output,

10 DI3/OC1

configurable. Open collector: Max. 24 V resistive or inductive.

Analog input:

4AI1

0-20 mA / 4-20 mA

0.5 - 3.5 V / 0-5 V / 0-10 V

2 DI1 Digital input, configurable

5+5 V

Supply to potentiometer and sensor

6 GND Ground A GENIbus, A GENIbus, A (+) Y GENIbus, Y GENIbus, GND B GENIbus, B GENIbus, B (-)

3 GND Ground

15 +24 V Supply

TM05 3510 3512

8 +24 V Supply

26 +5 V

Supply to potentiometer and sensor

23 GND Ground

25 GDS TX

Grundfos Digital Sensor output

24 GDS RX Grundfos Digital Sensor input

Analog input:

7AI2

0-20 mA / 4-20 mA

0.5 - 3.5 V / 0-5 V / 0-10 V

7.5 Signal cables

Dry-running sensor

Set to automatic resetting

Connection terminals on E-pump:

2 (Start/Stop) and 6 (GND)

1 x 200-240 VAC

1 X 80-130 VAC

Brown

Black

Blue

White

Jumper cable

• Use screened cables with a conductor cross-section of min. 28 AWG and max. 16 AWG for external on/off switch, digital inputs, setpoint and sensor signals.

• Connect the screens of the cables to frame at both ends with good connection. The screens must be as close as possible to the terminals. See fig. 10.

Fig. 10 Stripped cable with screen and wire connections

7.6 E-pump electrical connections

7.6.1 Connection of E-pump to Danfoss pressure sensor MBS3000

The blue wire of the pressure sensor is connected to the #4 terminal of the E-pump. The brown wire of the pressure sensor is connected to the #8 terminal of the E-pump.

See section 7.5 Signal cables on or additional details.

TM02 1325 4402

English (US)

• Always tighten screws for frame connections whether a cable is fitted or not.

• Make the wires in the motor terminal box as short as possible.

7.6.2 Connection of E-pump to LiqTec

TM05 1533 2911

Fig. 11 Danfoss pressure sensor

Fig. 12 Connection of E-pump to LiqTec

TM03 0437 5104

English (US)

Motor

Caution

0.99

0.98

0.97

0.96

0.95

0.94

0.93

0.92

0.91

0.90

0.89

0.88

3281 3937 4593 5249 5906 6562 7218

[ft]

P2 [%]

7.7 Bus connection cable

7.7.1 New installations

For the bus connection, use a screened 3-core cable with a conductor cross-section 28-16 AWG.

• If the motor is connected to a unit with a cable clamp which is identical to the one on the motor, connect the screen to this cable clamp.

• If the unit has no cable clamp as shown in fig. 13, leave the screen unconnected at this end.

Fig. 13 Connection with screened 3-core cable

7.7.2 Replacing an existing motor

• If a screened 2-core cable is used in the existing installation, connect it as shown in fig. 14.

8. Operating conditions

8.1 Maximum number of starts and stops

The number of starts and stops via the power supply must not exceed four times per hour.

When switched on via the power supply, the pump will start after approx. 5 seconds.

If a higher number of starts and stops is desired, use the input for external start/stop when starting/stopping the pump.

When started via an external on/off switch, the pump will start immediately.

8.2 Ambient temperature

8.2.1 Ambient temperature during storage and transportation

Minimum -22 °F Maximum +140 °F.

8.2.2 Ambient temperature during operation

Minimum -4 °F

TM05 3973 1812TM02 8842 0904

Maximum -122 °F. The motor can operate with the rated power output (P2) at 122 °F,

but continuous operation at higher temperatures will reduce the expected product life. If the motor is to operate at ambient temperatures between 122 and 140 °F, an oversized motor must be selected. Contact Grundfos for further information.

8.3 Installation altitude

The motor must not be installed more than 6560 ft above sea level.

Installation altitude is the height above sea level of the installation site.

• Motors installed up to 3280 ft above sea level can be loaded 100 %.

• Motors installed more than 3280 ft above sea level must not

Fig. 14 Connection with screened 2-core cable

• If a screened 3-core cable is used in the existing installation,

be fully loaded due to the low density and consequent low cooling effect of the air. See fig. 15.

follow the instructions in section 7.7.1 New installations.

TM05 6400-U.S. 1013

Fig. 15 Derating of motor output power (P2) in relation to

altitude above sea level

8.4 Air humidity

Max.

Min.

Maximum air humidity: 95 %. If the air humidity is constantly high and above 85 %, the drain

holes in the drive-end flange should be open. See section 6.5 Drain holes.

8.5 Motor cooling

To ensure cooling of motor and electronics, the following must be observed:

• Position the motor in such a way that adequate cooling is

ensured. See section 6.3 Ensuring motor cooling.

• The temperature of the cooling air must not exceed 122 °F.

• Keep cooling fins and fan blades clean.

9. Operating and control modes

Grundfos E-pumps are set and controlled according to operating and control modes.

9.1 Overview

Operating modes

Normal

Stop

Min.

Max.

Manual

Control modes

Constant pressure

Constant differential pressure

Constant temperature

9.2 Operating mode

When the operating mode is set to "Normal", the control mode can be set to constant curve or any other control mode.

See section 9.3 Control mode. Other operating modes:

•Stop The pump has been stopped.

•Min. The pump is operating at its minimum speed.

•Max. The pump is operating at its maximum speed.

• Manual The pump is operating at a manually set speed.

Figure 16 illustrates the min. and max. curves.

Fig. 16 Min. and max. curves

The max. curve can for instance be used in connection with the venting procedure during installation.

The min. curve can be used in periods in which a minimum flow is required.

If the power supply to the pump is disconnected, the setting of operating mode will be stored.

English (US)

TM00 5547 0995

Constant differential temperature

Constant flow rate

Constant level

Constant curve

Constant other value

Example

If the pump is fitted with a pressure sensor, the control mode must be set to constant pressure. If the pump is for instance fitted with a temperature sensor, the control mode should be constant temperature. See section 9.3 Control mode for further information.

English (US)

set

Stop

9.3 Control mode

9.3.1 Pumps without factory-fitted sensor

The pumps have been factory-set to constant-curve control mode.

In this control mode, the pump will operate according to the constant curve set. See fig. 17.

Fig. 17 Pump in constant-curve control mode

Factory setting

Pumps supplied without sensor have been factory-set to constant-curve control mode.

The setpoint value corresponds to 100 % of the maximum pump performance. See data booklet or WebCAPS.

9.3.2 Pumps with factory-fitted pressure sensor

The pressure sensor is fitted on the pump discharge side, and the pump is set to constant pressure.

In this control mode, the pump will adjust its performance, i.e. pump discharge pressure, to the desired setpoint (H

18.

). See fig.

set

10. User interfaces

Warnin g The product may be so hot that only the buttons

should be touched to avoid burns.

Pump settings can be made by means of the following user interfaces:

Control panel

• Standard control panel. See section 10.1 Standard control panel.

Remote controls

• Grundfos R100 remote control. See section 10.3 R100 remote control.

• Grundfos GO Remote. See section 10.4 Grundfos GO Remote.

If the power supply to the pump is switched off, the settings will be stored.

TM05 6403 4712TM05 6398 4712

10.1 Standard control panel

TM05 4848 3512

Fig. 19 Standard control panel

Pos. Symbol Description

Grundfos Eye

Shows the operating status of the pump. See section 14. Grundfos Eye for further information.

2 - Light fields for indication of setpoint.

Fig. 18 Pump in constant-pressure control mode

Factory setting

Pumps supplied with pressure sensor have been factory-set to constant-pressure control mode.

The setpoint value corresponds to 50 % of the sensor measuring range. See sensor nameplate.

3 Changes the setpoint.

Enables radio communication with the

Grundfos GO Remote and other products of the same type.

Makes the pump ready for operation/starts and stops the pump.

Start:

If the button is pressed when the pump is stopped, the pump will only start if no other functions with higher priority have been

enabled. See section 13. Priority of

settings.

Stop:

If the button is pressed when the pump is running, the pump will always be stopped. When the pump is stopped via this button, the "Stop" text next to the button will illuminate.

10.1.1 Setpoint setting

bar

Set the desired setpoint of the pump by pressing or . The light fields on the control panel will indicate the setpoint set.

Pump in constant-pressure control mode

The following example applies to a pump in an application where a pressure sensor gives a feedback to the pump. If the sensor is retrofitted to the pump, it must be set up manually as the pump does not automatically register a connected sensor.

Figure 20 shows that the light fields 5 and 6 are activated, indicating a desired setpoint of 3 bar with a sensor measuring range from 0 to 6 bar. The setting range is equal to the sensor measuring range.

Fig. 20 Setpoint set to 3 bar, constant-pressure control mode

Pump in constant-curve control mode

In constant-curve control mode, the pump performance will lie between the max. and min. curve of the pump. See fig. 21.

Setting to max. curve:

•Press the pump (top light field flashes). When the top light field is on, press

• To change back, press setpoint is indicated.

Example: Pump set to max. curve. Figure 22 shows that the top light field is flashing, indicating max.

curve.

Fig. 22 Max. curve duty

Setting to min. curve:

TM05 4894 3512TM05 4895 2812

•Press pump (bottom light field flashes). When the bottom light field is on, press

• To change back, press continuously until the desired setpoint is indicated.

Example: Pump set to min. curve. Figure 23 shows that the bottom light field is flashing, indicating

min. curve.

continuously to change over to the max. curve of

for 3 seconds until the light field starts flashing.

continuously until the desired

continuously to change over to the min. curve of the

for 3 seconds until the light field starts flashing.

English (US)

TM05 4896 2812TM05 4897 2812

Fig. 21 Pump in constant-curve control mode

Fig. 23 Min. curve duty

English (US)

10.1.2 Start/stop of pump

Stop the pump by pressing . When the pump is stopped, the "Stop" text next to the button will illuminate. The pump can also be stopped by continuously pressing fields are on.

Start the pump by pressing until the desired setpoint is indicated.

If the pump has been stopped by pressing , it can only be given free to operation by pressing again.

If the pump has been stopped by pressing , it can only be restarted by pressing .

The pump can also be stopped with the R100, Grundfos GO Remote or via a digital input set to "External stop".

See section 13. Priority of settings.

10.1.3 Resetting of alarms and warnings

A fault indication can be reset in one of the following ways:

• Via the digital input if it has been set to "Alarm resetting".

• Briefly press or setting of the pump. A fault indication cannot be reset by pressing or buttons have been locked.

• Switch off the power supply until the indicator lights are off.

• Switch the external start/stop input off and then on again.

• With the R100. See section Alarm, page 19.

• With the Grundfos GO Remote.

or by continuously pressing

on the pump. This will not change the

until none of the light

if the

10.2 Changing the position of the control panel

Note

It is possible to turn the control panel 180 °. Follow the instructions below.

1. Loosen the four screws (TX25) holding the terminal box cover.

Fig. 24 Loosening the screws

2. Remove the terminal box cover.

4. Turn the plastic cover 180 °.

Do not twist the cable more than 90 °.

Fig. 27 Turning the plastic cover

5. Re-position the plastic cover correctly on the four rubber pins

TM05 5351 3612TM05 5352 3612TM05 5353 3612

(pos. C). Make sure that the locking tabs (pos. A) are placed correctly.

English (US)

TM05 5354 3612TM05 5355 3612TM05 5356 3612

Fig. 25 Removing the terminal box cover

3. Press and hold in the two locking tabs (pos. A) while gently

lifting the plastic cover (pos. B).

Fig. 26 Lifting the plastic cover

Fig. 28 Re-positioning the plastic cover

6. Fit the terminal box cover, and make sure that it is also turned 180 ° so that the buttons on the control panel are aligned with the buttons on the plastic cover. Tighten the four screws (TX25) with 3.7 ft lb.

Fig. 29 Fitting the terminal box cover

English (US)

10.3 R100 remote control

The pumps are designed for wireless communication with the Grundfos remote control R100.

Fig. 30 R100 communicating with the pump via infrared light

10.3.1 R100 menu structure

0. GENERAL 1. OPERATION 2. STATUS 3. INSTALLATION

Switch off R100 Setpoint

Return to start Operating mode Operating mode Controller

Delete all changes Manual speed Actual controlled value Signal relay 1 and 2

During communication, the R100 must be pointed at the control panel. When the R100 communicates with the pump, the indicator light in the middle of the Grundfos Eye will flash green. See page 36.

The R100 offers additional possibilities of setting and status displays for the pump.

The displays are divided into four parallel menus:

0. GENERAL (see operating instructions for the R100)

1. OPERATION

2. STATUS

3. INSTALLATION.

See section 10.3.1 R100 menu structure.

TM05 3933 1712

Actual setpoint and external setpoint

Control mode

Store settings Alarm Analog input 1, 2 and 3 Buttons on pump

Call up settings Warning Pt100/1000 input 1 and 2 Number

Store status data Alarm log 1 to 5 Speed Digital input 1 and 2, Function

Call up status data Warning log 1 to 5

Power input and power consumption

Operating hours

Replace motor bearings Low-flow stop function

Digital input/output 3 and 4, State Digital input/output 3 and 4,

Function

Analog input 1, 2 and 3, Function Analog input 1, 2 and 3, Measured

parameter Analog input 1, 2 and 3

Pt100/1000 input 1 and 2, Function Pt100/1000 input 1 and 2, Measured

parameter LiqTec function

Operating range

Ramps

Motor bearing monitoring

Motor bearings

Standstill heating

10.3.2 OPERATION menu

When communication between the R100 and the pump has been established, the first display in this menu will appear.

Setpoint

Manual speed

Without sensor With pressure sensor

Setpoint set Actual setpoint Actual value

Set the setpoint in %.

In constant-curve control mode, the setpoint is set in % of the maximum performance. The setting range will lie between the min. and max. curves.

In all other control modes, for example constant pressure, the setting range is equal to the sensor measuring range.

If the pump is connected to an external setpoint signal, the value in this display will be the maximum value of the external setpoint signal. See section 11. External setpoint signal.

Setpoint and external signal

The setpoint cannot be set if the pump is controlled via external signals (Stop, Min. curve or Max. curve).

The R100 will give this warning: "External". Check if the pump has been stopped via one of the digital inputs

set to "External stop" (open circuit) or it has been set to min. or max. via one of the digital inputs (closed circuit).

See section 13. Priority of settings.

Setpoint and bus communication

The setpoint cannot be set if the pump is controlled from an external control system via bus communication.

The R100 will give this warning: "Bus". To override bus communication, disconnect the bus connection. See section 13. Priority of settings.

Operating mode

Select one of the following operating modes:

•Stop

• Min. (min. speed)

• Normal (duty)

• Max. (max. speed)

• Manual (operation). The operating modes can be selected without changing the

setpoint setting. See section 9.2 Operating mode for further information.

Setpoint set Actual setpoint Actual value

Set the desired pressure in bar.

English (US)

In this display, the pump speed can be set in %. When the operating mode has been set to "Manual", the pump will run at the set speed.

Alarm

In case of an alarm, the cause will appear in the display together with a fault code.

Possible alarms:

Alarm Fault code

External fault 3 Too many restarts 4 Forced pumping 29 Overvoltage 32 Undervoltage 40 Overload 49 Blocked pump 51 Dry running 56, 57 Too high motor temperature 65 Electronics temperature too high 66 Internal communication fault 76 Internal fault 83, 85 Sensor signal outside signal range 88 Temperature sensor 1 outside signal range 91 Internal fault 163 LiqTec sensor fault 164 Signal outside range, analog input 1 165 Signal outside range, analog input 2 166 Signal outside range, analog input 3 167 Temperature sensor 2 outside signal range 175 Limit 1 exceeded 190 Limit 2 exceeded 191

An alarm indication can be reset in this display by pressing [OK] if the cause of the fault has disappeared.

English (US)

Warning

Warning log 1 to 5

In case of a warning, the cause will appear in this display together with a fault code.

Possible warnings:

Warning Fault code

No contact to pump 10 Replace motor bearings 30 Too high motor temperature 65 Electronics temperature too high 66 Internal fault 83, 85, 163 Sensor signal outside signal range 88 Temperature sensor 1 outside signal range 91 Sensor supply fault, 5 V 161 Sensor supply fault, 24 V 162 LiqTec sensor fault 164 Signal outside range, analog input 1 165 Signal outside range, analog input 2 166 Signal outside range, analog input 3 167 Temperature sensor 2 outside signal range 175 Limit 1 exceeded 190 Limit 2 exceeded 191

A warning indication will disappear automatically once the fault has been remedied.

Alarm log 1 to 5

In case of "warning" faults, the last five warning indications will appear in the warning log. "Warning log 1" shows the latest fault, "Warning log 2" shows the latest fault but one, etc.

The example above gives this information:

• The warning indication "Replace motor bearings".

• The fault code "(30)".

• The period in which the pump has been connected to the

power supply after the fault occurred.

10.3.3 STATUS menu

The displays appearing in this menu are status displays only. It is not possible to change or set values.

The displayed values are the values that applied when the last communication between the pump and the R100 took place. If a status value is to be updated, point the R100 at the control panel and press [OK].

If a parameter, for example speed, should be called up continuously, press [OK] constantly during the period in which the parameter in question should be monitored.

The tolerance of the displayed value is stated under each display. The tolerances are stated as a guide in % of the maximum values of the parameters.

Actual setpoint and external setpoint

Without sensor With pressure sensor

In case of "alarm" faults, the last five alarm indications will appear in the alarm log. "Alarm log 1" shows the latest fault, "Alarm log 2" shows the latest fault but one, etc.

The example above gives this information:

• The alarm indication "Other fault".

• The fault code "(73)".

• The period in which the pump has been connected to the power supply after the fault occurred.

Tolerance: ± 2 %. Tolerance: ± 2 %.

This display shows the actual setpoint and the external setpoint in % of the range from minimum value of sensor measuring range to the setpoint set.

At a min. speed of 12 %, a set setpoint of 65 % and an external setpoint of 70 %, the actual setpoint will be 0.70 x (65 - 12) + 12 = 49 %.

Operating mode

This display shows the actual operating mode (Stop, Min., Normal (duty), Max. or Manual (operation)). Furthermore, it shows where this operating mode was selected (Handheld, Pump, Bus, External or Start/stop button). See section 9. Operating and

control modes for further information.

Actual controlled value

Without sensor With pressure sensor

The actual controlled value will appear in this display if a sensor has been connected and the function of the analog input has been set to "Feedback sensor".

If two separate sensors are used to measure a differential parameter, the function of two analog inputs must be set to "Feedback sensor". The actual controlled value will be the absolute difference between the two sensor measurements. See section Analog input 1, 2 and 3, Function, page 28.

Analog input 1, 2 and 3

Pt100/1000 input 1 and 2

English (US)

These displays show the measured parameter and the corresponding value. The measured temperatures will appear in these displays if Pt100 or Pt1000 sensors have been connected.

The number of available displays depends on the pump type. See below.

These displays show the measured parameter and the corresponding value.

The number of available displays depends on the pump type. See below.

Function (terminal) CME

Analog input 1 (4) ●● Analog input 2 (7) ●● Analog input 3 (14) - ●

CRE, CRIE, CRNE, SPKE,

MTRE

Function (terminal) CME

Pt100/1000 input 1 (17) - ● Pt100/1000 input 2 (19) - ●

Speed

Tolerance: ± 5 %. This display shows the actual speed.

Power input and power consumption

Tolerance: ± 10 %.

• "Power input" indicates the actual power consumption.

• "Power consumption" indicates an accumulated value which cannot be reset.

CRE, CRIE, CRNE,

SPKE, MTRE

English (US)

Note

Operating hours

Tolerance: ± 2 %. The value of operating hours is an accumulated value and cannot

be reset.

Replace motor bearings

This display shows when to replace the motor bearings. The controller monitors the operating pattern of the motor and

calculates the period between bearing replacements. Displayable values:

• in 2 years

• in 1 year

• in 6 months

• in 3 months

• in 1 month

• in 1 week

•Now!

10.3.4 INSTALLATION menu

Control mode

Select one of the following control modes:

• Const. pressure

• Const. diff. press.

• Const. temperature

• Const. diff. temp.

• Const. flow rate

•Const. level

•Const. curve

• Const. other value.

See section 9. Operating and control modes for further information.

If the pump is connected to a bus, the control mode cannot be selected via the R100. See section 12. Bus signal.

Controller

E-pumps have a factory default setting of gain (K time (T

). However, if the factory setting is not the optimum

setting, the gain and the integral time can be changed in this

) and integral

display below:

• Set the gain (K

• Set the integral-action time (T

) within the range from 0.1 to 20.

) within the range from 0.1 to

3600 s. If 3600 s is selected, the controller will function as a P controller.

• Furthermore, the controller can be set to inverse control, meaning that if the setpoint is increased, the speed will be reduced. In the case of inverse control, the gain (K set within the range from -0.1 to -20.

) must be

Guidelines for setting of PI controller

ǻW

ǻS

The table below shows the recommended controller settings:

System/application

Heating

system

Cooling

system

0.5 0.5

0.1 0.5

0.5 0.5

0.5 -0.5 10 + 1.52L2

Heating systems are systems in which an increase in pump performance will result in a rise in temperature at the sensor.

Cooling systems are systems in which an increase in pump performance will result in a drop in temperature at the sensor.

L1 = Distance [ft] between pump and sensor. L2 = Distance [ft] between heat exchanger and sensor.

English (US)

0.5 10 + 1.52L2

0.5 -0.5 30 + 1.52L2

0.5 0.5

L1 < 16.4 ft:

0.5

L1 > 16.4 ft:

L1 > 32.8 ft:

+2.5 100

English (US)

How to set the PI controller

For most applications, the factory setting of the controller constants K However, in some applications an adjustment of the controller

and Ti will ensure optimum pump operation.

may be needed.

Proceed as follows:

1. Increase the gain (K Instability can be seen by observing if the measured value

) until the motor becomes unstable.

starts to fluctuate. Furthermore, instability is audible as the motor starts hunting up and down. Some systems, such as temperature controls, are slow-reacting, meaning that it may be several minutes before the motor becomes unstable.

2. Set the gain (K unstable. This is the correct setting of the gain.

3. Reduce the integral time (T unstable.

4. Set the integral time (T

) to half of the value which made the motor

) until the motor becomes

) to twice the value which made the

motor unstable. This is the correct setting of the integral time.

General rules of thumb

• If the controller is too slow-reacting, increase K

• If the controller is hunting or unstable, dampen the system by

reducing K

or increasing Ti.

Signal relay 1 and 2

Buttons on pump

The buttons on the pump can be set to the following:

•Active

• Not active.

Number

A number between 1 and 64 can be allocated to the pump. In the case of bus communication, a number must be allocated to each pump.

The signal relays can be configured to be activated by one of the following incidents:

• Ready

• Operation

•Alarm

• Warning

• Limit 2 exceeded

• Limit 1 exceeded

• Running

• Ext. fan control

• Not active.

The number of available displays depends on the pump type. See below.

CRE, CRIE,

Function (terminal) CME

CRNE, CRKE,

SPKE, MTRE

Signal relay 1 (NC, C1, NO) ●● Signal relay 2 (NC, C2, NO) ●●

Digital input 1 and 2, Function

The digital inputs can be set to various functions. Select one of these functions:

• Not active

When set to "Not active", the input has no function.

• External fault

When the input is activated, a timer will be started. If the input is activated for more than 5 seconds, the pump will be stopped and a fault will be indicated. If the connection is disconnected for more than 5 seconds, the fault condition will cease and the pump will start if automatic restarting has been selected via PC Tool.

• Alarm resetting

When the input is activated, a possible fault indication will be reset.

• External stop

When the input is deactivated (open circuit), the pump will stop.

• Max. (max. speed)

When the input is activated, the pump will run at the set max. speed.

• Min. (min. speed)

When the input is activated, the pump will run at the set min. speed.

• Flow switch

When this function is selected, the stop function will use a flow switch to detect low-flow stop. See section Low-flow stop

function, page 26.

• Dry running

When this function is selected, lack of inlet pressure or water shortage can be detected. When lack of inlet pressure or water shortage (dry running) is detected, the pump will be stopped. The pump cannot restart as long as the input is activated. This requires the use of an accessory, such as these:

– a pressure switch installed on the suction side of the pump – a float switch installed on the suction side of the pump

• Accumulated flow

When this function is selected, the accumulated flow can be registered. This requires the use of a flowmeter which can give a feedback signal as a pulse per defined flow of water. Further setting of this function must be made via PC Tool.

• Predefined setpoint, digital1 (applies only to digital input

When digital inputs are set to predefined setpoint, the pump will operate according to a setpoint based on the combination of the activated digital inputs. Further setting of this function must be made via PC Tool.

The priority of the selected functions in relation to each other appears from section 13. Priority of settings.

A stop command will always have the highest priority. The number of available displays depends on the pump type. See

below.

Function (terminal) CME

Digital input 1, Function (2 and 6) ●● Digital input 2, Function (1 and 9) - ●

Digital input/output 3 and 4, State

The digital input/output 3 and 4 can be set to act as digital input or digital output.

Possible settings:

• Digital input

• Digital output. The number of available displays depends on the pump type. See

below.

Function (terminal) CME

Digital input/output 3, State (10 and 6)

Digital input/output 4, State (11 and 18)

●●

- ●

CRE, CRIE,

CRNE, CRKE,

SPKE, MTRE

CRE, CRIE,

CRNE, CRKE,

SPKE, MTRE

English (US)

Digital input/output 3 and 4, Function

The digital input/output 3 and 4 can be set to these functions:

Possible functions, digital input/output 3

Set to digital input Set to digital output

• Not active

• Predef. setp., dig2

• External fault

• Alarm resetting

• External stop

•Max.

•Min.

• Flow switch

• Ready

• Operation

•Alarm

• Warning

• Limit 2 exceeded

• Limit 1 exceeded

• Running

• Not active

• Dry running

• Accumulated flow

Possible functions, digital input/output 4

Set to digital input Set to digital output

• Not active

• Predef. setp., dig3

• External fault

• Alarm resetting

• Reversing

• External stop

•Max.

•Min.

• Ready

• Operation

•Alarm

• Warning

• Limit 2 exceeded

• Limit 1 exceeded

• Running

• Not active

• Flow switch

• Dry running

• Accumulated flow

The number of available displays depends on the pump type. See below.

CRE, CRIE,

Function (terminal) CME

CRNE, CRKE,

SPKE, MTRE

Digital input/output 3, Function (10 and 6)

Digital input/output 4, Function (11 and 18)

●●

- ●

Low-flow stop function

The low-flow stop function can be set to these values:

• Not active

•Energy optimal

• High comfort

• User-defined. When the low-flow stop function is active, the flow will be

monitored. If the flow becomes lower than the set minimum flow

), the pump will change from continuous operation at

min

constant pressure to start/stop operation and finally be stopped if the flow reaches zero.

The advantages of enabling the low-flow stop function are the following:

• no unnecessary heating of the pumped liquid

• reduced wear of the shaft seals

• reduced noise from operation. The disadvantages of enabling the low-flow stop function may be

the following:

• The delivered pressure is not completely constant as it will fluctuate between the start and stop pressures.

• The frequent starts/stops of the pump may in some applications cause acoustic noise.

The impact of the above disadvantages very much depends on the setting selected for the low-flow stop function.

The "High comfort" setting will minimize pressure fluctuations and acoustic noise.

If "Energy optimal" is selected, the main priority will be to reduce the energy consumption as much as possible.

Possible settings of the low-flow stop function:

•Energy optimal: The pump will automatically adjust the parameters for the stop function so that the energy consumption during the start/stop operation period is minimized. In this case, the stop function will use factory-set values of minimum flow (Q

) and other internal parameters.

min

• High comfort: The pump will automatically adjust the parameters for the stop function so that the disturbances during the start/stop operation period are minimized. In this case, the stop function will use factory-set values of minimum flow (Q

) and other internal parameters.

min

• User-defined: The pump will use the parameters set for ∆H and Q respectively for the stop function.

min

Operating conditions for the low-flow stop function

min

Stop pressure

Start pressure

Caution

Pressure sensor

Diaphragm tank

Non-return

valve

Pump

Diaphragm tank

Pressure sensor

Pump Non-return valve

It is only possible to use the stop function if the system incorporates a pressure sensor, a non-return valve and a diaphragm tank.

The non-return valve must always be installed before the pressure sensor. See figs 32 and 33.

TM05 6079 4512

English (US)

Fig. 31 Difference between start and stop pressures (∆H) and

minimum flow (Q

In start/stop operation, the pressure will vary between the start and stop pressures. See fig. 31.

In "User-defined" mode, ∆H has been factory-set to 10 % of the actual setpoint. ∆H can be set within the range from 5 to 30 % of

min

)

TM03 8582 1907TM03 8583 1907

Fig. 32 Position of the non-return valve and pressure sensor in

system with suction lift operation

actual setpoint. The pump will change to start/stop operation if the flow becomes

lower than Q

is set in % of the rated flow of the pump (see pump

min

nameplate). In "User-defined" mode, Q

rated flow.

has been factory-set to 10 % of

min

Low-flow detection

Low flow can be detected in two ways:

1. A built-in "low-flow detection function" which is active if none of the digital inputs are set up for flow switch.

Fig. 33 Position of the non-return valve and pressure sensor in

system with a positive inlet pressure

Set min. flow

2. A flow switch connected to one of the digital inputs.

1. Low-flow detection function: The pump will check the flow regularly by reducing the speed for a short time. If there is no or only a small change in pressure, this means that there is low flow. The speed will be increased until the stop pressure (actual setpoint + 0.5 x ΔH) is reached and the pump will stop. When the pressure has fallen to the start pressure (actual setpoint - 0.5 x ΔH), the pump will restart.

– If the flow is higher than the set minimum flow (Q

pump will return to continuous operation at constant

min

pressure.

– If the flow is still lower than the set minimum flow (Q

pump will continue in start/stop operation until the flow is higher than the set minimum flow (Q higher than the set minimum flow (Q return to continuous operation.

). When the flow is

min

), the pump will

min

), the

min

Set the minimum flow (Q determines at which flow rate the system is to change from continuous operation at constant pressure to start/stop operation. The setting range is 5 to 30 % of rated flow.

Factory setting: 10 %.

) in this display. This setting

min

2. Flow switch: When the digital input is activated for more than 5 seconds because there is low flow, the speed will be increased until the stop pressure (actual setpoint + 0.5 x ΔH) is reached, and the pump will stop. When the pressure has fallen to start pressure, the pump will restart. If there is still no flow, the pump will quickly reach the stop pressure and stop. If there is flow, the pump will continue operating according to the setpoint.

English (US)

Diaphragm tank volume

The stop function requires a diaphragm tank of a certain minimum size. Set the size of the installed tank in this display.

In order to reduce the number of start/stops per hour or to reduce the ∆H, a larger tank can be installed.

The tank must be installed immediately after the pump and the precharge pressure must be 0.7 x actual setpoint.

Recommended diaphragm tank size:

Analog input 1, 2 and 3, Function

Rated flow rate

of pump

[gpm (m

(6.1 - 23.8)

(24.2 - 40)

(40.2 - 70.0)

(70.2 - 99.9)

(100 - 170)

If a diaphragm tank of the above size is installed in the system, the factory setting of ΔH is the correct setting. If the tank installed is too small, the pump will start and stop too often. This can be remedied by increasing ΔH.

/h)]

0-26

(0-5.9)

27 - 105

106 - 176

177 - 308

309 - 440

441 - 750

CRE pump

1s, 1, 3 2 (7.6)

5, 10, 15 4.4 (16.7)

20, 32 14 (53.0)

45 34 (128.7)

64, 90 62 (234.7)

120, 150 86 (325.5)

Typical diaphragm

tank size

[gal (liter)]

The analog inputs can be set to these functions:

• Not active

• Feedback sensor

• Ext. setpoint infl.

See section 11. External setpoint signal for further description.

• Other function. The number of available displays depends on the pump type. See

below.

CRE, CRIE,

Function (terminal) CME

Analog input 1, Function (4) ●● Analog input 2, Function (7) ●● Analog input 3, Function (14) - ●

CRNE, CRKE,

SPKE, MTRE

Analog input 1, 2 and 3, Measured parameter

Analog input 1, 2 and 3

English (US)

The analog inputs can be set to these parameters:

• Inlet pressure

• Diff. press., inlet

• Discharge press.

• Diff. press., outlet

• Diff. press., pump

• Press. 1, external

• Press. 2, external

• Diff. press., external

• Feed tank level

• Storage tank level

• Flow, pump

• Flow, external

• Liquid temp.

• Diff. temp., external

• Temperature 1

• Temperature 2

• Ambient temp.

• Other parameter.

The number of available displays depends on the pump type. See below.

Function (terminal) CME

Analog input 1, Measured parameter (4)

Analog input 2, Measured parameter (7)

Analog input 3, Measured parameter (14)

●●

- ●

CRE, CRIE,

CRNE, CRKE,

SPKE, MTRE

Select the following:

• Signal type (0.5 - 3.5 V, 0-5 V, 0-10 V, 0-20 mA or 4-20 mA).

• Measuring units for the measured parameters. Available measuring units:

Parameter Possible units

Pressure bar, m, kPa, psi, ft Flow rate m Temperature °C, °F Other %

• Sensor measuring range.

The number of available displays depends on the pump type. See below.

Function (terminal) CME

Analog input 1 (4) ●● Analog input 2 (7) ●● Analog input 3 (14) - ●

/h, l/s, yd3/h, gpm

CRE, CRIE,

CRNE, CRKE,

SPKE, MTRE

English (US)

Pt100/1000 input 1 and 2, Function

The Pt100/1000 inputs can be set to these functions:

• Not active

• Feedback sensor

• Ext. setpoint infl.

See section 11. External setpoint signal for further description.

• Other function. The number of available displays depends on the pump type. See

below.

CRE, CRIE,

Function (terminal) CME

Pt100/1000 input 1, Function (17 and 18)

Pt100/1000 input 2, Function (19 and 18)

Pt100/1000 input 1 and 2, Measured parameter

CRNE, CRKE,

SPKE, MTRE

- ●

The number of available displays depends on the pump type. See below.

CRE, CRIE,

Function (terminal) CME

Pt100/1000 input 1, Measured parameter (17 and 18)

Pt100/1000 input 2, Measured parameter (19 and 18)

LiqTec function

The function of LiqTec sensors can be enabled or disabled in this display. A LiqTec sensor protects the pump against dry running and too high liquid temperature (266 ° F ± 9 °F).

When the LiqTec function has been enabled, it will stop the pump if dry running occurs or if the liquid temperature becomes too high. The pump must be restarted manually if it has been stopped due to dry running or too high liquid temperature.

Possible settings:

•Active

• Not active.

The number of available displays depends on the pump type. See below.

Function (terminal) CME

LiqTec function (21 and 22) - ●

CRNE, CRKE,

SPKE, MTRE

- ●

CRE, CRIE,

CRNE, CRKE,

SPKE, MTRE

The Pt100/1000 inputs can be set to these parameters:

• Liquid temp.

• Temperature 1

• Temperature 2

• Ambient temp.

• DE bearing temp.

• NDE bearing temp.

Operating range

Max. speed (fixed)

User-set max. speed

Operating range

User-set min. speed

Min. speed (fixed)

24 %

12 %

0 %

67 %

100 %

Note

Motor bearing monitoring

English (US)

Set the operating range as follows:

• Set the min. speed within the range from fixed min. speed to user-set max. speed.

• Set the max. speed within the range from user-set min. speed to fixed max. speed.

The range between the user-set min. and max. speeds is the operating range. See fig. 34.

Fig. 34 Example of min. and max. settings

Ramps

The setting of ramps is only relevant in the case of constant-curve operation.

The ramps determine how quickly the pump can accelerate and decelerate, respectively, during start/stop or setpoint changes.

The following can be set:

• acceleration time, 0.1 to 300 s

• deceleration time, 0.1 to 300 s.

The times apply to the acceleration from stop to rated speed and the deceleration from rated speed to stop, respectively.

At short deceleration times, the deceleration of the pump may depend on load and inertia as there is no possibility of actively braking the pump.

If the power supply is switched off, the deceleration of the pump will only depend on load and inertia.

The motor bearing monitoring function can be set to these values:

•Active

• Not active When the function is set to "Active", the controller will monitor the

operating pattern of the motor and calculate when the bearings need to be replaced.

Even if the function is changed to "Not active", the controller will continue to calculate when the bearings need to be replaced, but no warning will be given when it is time for replacement.

When the function is changed back to "Active", the accumulated calculations for bearing wear will be used to calculate the replacement time.

Motor bearings

TM00 6785 5095

This function can be set to these values:

•Replaced

• Nothing done When the bearing monitoring function is active, the controller will

give a warning indication when the motor bearings are due to be replaced. See section Alarm, page 19.

When the motor bearings have been replaced, confirm this action in the above display by pressing [OK].

Standstill heating

The standstill heating function can be set to these values:

•Active

• Not active. When the function is set to "Active", an AC voltage will be applied

to the motor windings. The applied voltage will ensure that sufficient heat is generated to avoid condensation in the motor.

English (US)

1 2

5 7

15 16 17 18

10.4 Grundfos GO Remote

The pump is designed for wireless radio or infrared communication with the Grundfos GO Remote.

The Grundfos GO Remote enables setting of functions and gives access to status overviews, technical product information and actual operating parameters.

The Grundfos GO Remote offers three different mobile interfaces (MI). See fig. 35.

Fig. 35 Grundfos GO Remote communicating with the pump

via radio or infrared light

Pos. Description

Grundfos MI 201:

Consists of an Apple iPod touch 4G and a Grundfos cover.

Grundfos MI 202:

Add-on module which can be used in conjunction with Apple iPod touch 4, iPhone 4G or later.

Grundfos MI 301: Separate module enabling radio or infrared communication. The module can be used in

conjunction with an Android or iOS-based Smartphone with Bluetooth connection.

10.4.1 Communication

When the Grundfos GO Remote communicates with the pump, the indicator light in the middle of the Grundfos Eye will flash green. See section 14. Grundfos Eye.

Communication must be established using one of these communication types:

• radio communication

• infrared communication

Radio communication

Radio communication can take place at distances up to 98 ft It is necessary to enable communication by pressing or on the pump control panel.

Infrared communication

When communicating via infrared light, the Grundfos GO Remote must be pointed at the pump control panel.

10.4.2 Navigation

Navigation can be done from the dashboard. See fig. 36.

TM05 5383 4312

Dashboard

Fig. 36 Example of dashboard

Pos. Description Action

This text appears when the Grundfos GO Remote app has connected to an MI 201, MI 202

Connection

indicator

2 Back button Returns to the previous display.

Product

information

4 Product name

Alarms and

warnings

6 Grundfos Eye

Primary status

value Secondary status

value

9 Control source

10 Control mode

Actual setpoint

value 12 Operating mode Shows the operating mode. 13 Show menu Gives access to other menus. 14 Stop Stops the product.

Tool bar

15 Help

16 Documentation

17 Report

18 Update

or MI 301. If the hardware is not connected, it will not be possible to communicate with a Grundfos product.

Provides technical information about the product.

Name of the product communicating with the Grundfos GO Remote.

Shows alarms and warnings.

Shows the operating condition of the product.

Shows the primary status value.

Shows the secondary status value.

Shows by which interface the product is controlled.

Shows the control mode of the product.

Shows the actual setpoint value.

The help function describes the menus making it easy for the user to change settings, etc.

Gives access to installation and operating instructions and quick guides.

Enables the creation of user-defined reports.

Enables update of the Grundfos GO Remote app.

TM05 5609 3912

11. External setpoint signal

Actual setpoint

Upper value of sensor measuring range

Setpoint set on motor, with the R100 or with Grundfos GO Remote

Lower value of sensor measuring range

External setpoint signal

Actual

setpoint

It is possible to remotely set the setpoint by connecting an analog signal to the analog input terminals. The external signal may be

0.5 - 3.5 V, 0-5 V, 0-10 V, 0-20 mA or 4-20 mA.

11.1 Operation with sensor feedback

If fitted with a sensor, the pump can operate according to the control modes below:

• Constant pressure

• Constant differential pressure

• Constant temperature

• Constant differential temperature

• Constant flow rate

• Constant level

• Constant other value. If operation with sensor feedback is selected, the setpoint can be

set externally within the range from the lower value of the sensor measuring range to the setpoint.

Example

Setpoint is to be the upper limit of the pressure sensor range. Operating mode is to be normal.

Control mode is to be constant pressure. Operating range to be 25-100 %. Analog input to be set as follows: (Grundfos GO).

English (US)

TM05 9661 1013TM05 5278 3512

See fig. 37.

0.5 3.5 V 05V 010 V 020 mA 420 mA

Fig. 37 Relation between the actual setpoint and the external

setpoint signal in operation with sensor feedback

(Analog input 2) Terminals 7 and 23. External setpoint function to be set as follows: (Grundfos GO).

Example: At a sensor and an external setpoint of 80 % (an 8 V analog signal if using an

value of 0 psi, a setpoint set of 50 psi

min

analog signal of 0-10 V), the actual setpoint will be as follows:

Actual

setpoint

= (setpoint - sensor

min

) x %

external setpoint +

= (50 - 0) x 80 % + 0 = 40 psi

TM05 9660 1013

sensor

min

English (US)

010 V 020 mA 420 mA

0.5 3.5 V 05V

% speed

Max. speed

Setpoint set on pump, with the R100 or with Grundfos GO Remote

Min. speed

External setpoint signal

Actual

setpoint

11.2 Constant-curve operation

If constant-curve operation is selected, the setpoint can be set externally within the range from the min. speed to the setpoint.

Example

Setpoint is to be 100 %. Operating mode is to be normal. Control mode is to be constant curve. Operating range to be 25-100 %. Analog input to be set as follows: (Grundfos GO).

See fig. 38.

TM05 5278 3512

Fig. 38 Relation between the actual setpoint and the external

setpoint signal in constant-curve operation

(Analog input 2) Terminals 7 and 23. External setpoint function to be set as follows: (Grundfos GO).

Example: At a set setpoint of 65 % of n setpoint of 70 %, the actual setpoint is 0.70 x (65 - 12) + 12 = 49

and an external

max.

TM05 9662 1013TM05 9661 1013

12. Bus signal

Note

The motor enables serial communication via an RS-485 input. The communication is carried out according to the Grundfos GENIbus protocol and enables connection to a building management system or another external control system.

Via a bus signal, it is possible to remote-set motor operating parameters, such as setpoint and operating mode. At the same time, the motor can, via the bus, provide status information about important parameters, such as actual value of control parameter, input power and fault indications.

Contact Grundfos for further information.

If a bus signal is used, the number of settings available via the R100 or Grundfos GO Remote will be reduced.

13. Priority of settings

The motor can always be set to operation at max. speed or to stop with the R100 or Grundfos GO Remote.

If two or more functions are enabled at the same time, the motor will operate according to the function with the highest priority.

Example: If, via the digital input, the motor has been set to max. speed, the motor control panel, the R100 or Grundfos GO Remote can only set the motor to "Manual" or "Stop".

The priority of the settings appears from the table below:

English (US)

Priority Start/stop button

1 Stop 2 Stop* 3 Manual 4 Max. speed* 5 Stop 6 Stop 7 Max. speed 8 Min. speed

9 Start 10 Max. speed 11 Min. speed 12 Min. speed 13 Start 14 Start

* If the bus communication is interrupted, the motor will resume

its previous operating mode, for example "Stop", selected with the R100, Grundfos GO Remote or on the motor control panel.

R100, Grundfos GO Remote

or control panel on motor

Digital input Bus communication

English (US)

14. Grundfos Eye

The operating condition of the motor is indicated by the Grundfos Eye on the motor control panel. See fig. 39, pos. A.

TM05 5993 4312

Fig. 39 Grundfos Eye

Grundfos Eye Indication Description

No lights on.

Two opposite green indicator lights rotating in the direction of rotation of the motor when seen from the non-drive end.

Two opposite green indicator lights permanently on.

One yellow indicator light rotating in the direction of rotation of the motor when seen from the non-drive end.

One yellow indicator light permanently on.

Two opposite red indicator lights flashing simultaneously.

The green indicator light in the middle flashes quickly four times.

The green indicator light in the middle flashes continuously.

The green indicator light in the middle is permanently on.

Power off. Motor not running.

Power on. Motor running.

Power on. Motor not running.

Warning. Motor running.

Warning. Motor stopped.

Alarm. Motor stopped.

Remote control with the Grundfos GO Remote via radio. The motor is trying to communicate with the Grundfos GO Remote. The motor in question is highlighted in the Grundfos GO Remote display to inform the user of the location of the motor.

When the motor in question is selected in the Grundfos GO Remote menu, the green indicator light in the middle will flash continuously. Press

on the motor control panel to allow remote control and data exchange via the Grundfos GO Remote.

Remote control with the Grundfos GO Remote via radio. The motor is communicating with the Grundfos GO Remote via radio connection.

The green indicator light in the middle flashes quickly while the R100 or Grundfos Go Remote is exchanging data with the motor. It will take a few seconds.

Remote control with the R100 or Grundfos GO Remote via infrared light. The motor is receiving data from the R100 or Grundfos GO Remote via infrared communication.

15. Signal relays

NCNOCNCNOCNCNOCNCNOCNCNO

NO NC

NO NCCNO NC

NCNOCNCNO

NO NC

NCNOCNCNOCNCNO

NCNOCNCNO

NO NC

NCNOCNCNO

NO NC

NO NCCNO NC

NCNO

NO NC

NCNOCNCNO

NO NC

NCNOCNCNO

NO NC

NCNO

NO NC

NCNO

NO NC

NCNO

NO NC

NCNO

NO NC

NCNO

NCNOCNCNOCNCNO

NO NC

NCNO

The motor has two outputs for potential-free signals via two internal relays.

The signal outputs can be set to "Operation", "Running", "Ready", "Alarm" and "Warning".

The functions of the two signal relays appear from the table below:

English (US)

Description Grundfos Eye

Power off.

Off

Pump running in "Normal" mode

Green, rotating

Pump running in "Manual" mode.

Green, rotating

Pump in operating mode "Stop".

Green, steady

Warning, but the pump is running.

Yellow, rotating

Contact position for signal relays when activated

Operation Running Ready Alarm Warning

Operating mode

Normal, Min. or Max.

Manual

Stop

Normal, Min. or Max.

Warning, but the pump is running in "Manual" mode.

Warning, but the pump was stopped via "Stop" command.

Alarm, but the pump is running.

Alarm, but the pump is running in "Manual" mode.

Pump stopped due to an alarm.

Manual

Yellow, rotating

Stop

Yellow, steady

Normal, Min. or Max.

Red, rotating

Manual

Red, rotating

Stop

Red, flashing

English (US)

Caution

16. Megging

Megging of an installation incorporating MGE motors is not allowed, as the built-in electronics may be damaged.

17. Technical data, single-phase motors

17.1 Supply voltage

• 1 x 200-240 V - 10 %/+ 10 %, 50/60 Hz, PE Check that the supply voltage and frequency correspond to the

values stated on the nameplate.

Recommended fuse size

Motor size

[HP]

Min.

[A]

Max.

[A]

1/2 - 1 6 10

1 1/2 - 2 10 16

Standard as well as quick-blow or slow-blow fuses may be used.

17.2 Leakage current

Ground leakage current < 3.5 mA (AC supply). Ground leakage current < 10 mA (DC supply). The leakage currents are measured in accordance with EN

61800-5-1:2007.

18. Technical data, three-phase motors

18.1 Supply voltage

• 3 x 380-500 V - 10 %/+ 10 %, 50/60 Hz, PE. Check that the supply voltage and frequency correspond to the

values stated on the nameplate.

Recommended fuse size

Motor size

[HP]

1 - 1 1/2 6 6

2 - 3 6 10

Standard as well as quick-blow or slow-blow fuses may be used.

18.2 Leakage current

Motor size

[HP]

1 - 3

(supply voltage < 400 V)

1 - 3

(supply voltage > 400 V)

The leakage currents are measured in accordance with EN 61800-5-1:2007.

Min.

[A]

Leakage current

[mA]

< 3.5

< 5

Max.

[A]

19. Inputs/outputs

Ground reference (GND)

All voltages refer to GND All currents return to GND.

Absolute maximum voltage and current limits

Exceeding the following electrical limits may result in severely reduced operating reliability and motor life:

Relay 1: Maximum contact load: 250 VAC, 2 A or 30 VDC, 2 A. Relay 2: Maximum contact load: 30 VDC, 2 A. GENI terminals: -5.5 to 9.0 VDC or < 25 mADC. Other input/output terminals: -0.5 to 26 VDC or < 15 mADC.

Digital inputs (DI)

Internal pull-up current > 10 mA at V Internal pull-up to 5 VDC (currentless for V Certain low logic level: V Certain high logic level: V

< 1.5 VDC.

> 3.0 VDC.

Hysteresis: No. Screened cable: 28-16 AWG / 0.5 - 1.5 mm Maximum cable length: 1640 ft.

Open-collector digital outputs (OC)

Current sinking capability: 75 mADC, no current sourcing. Load types: Resistive or/and inductive. Low-state output voltage at 75 mADC: Max. 1.2 VDC. Low-state output voltage at 10 mADC: Max. 0.6 VDC. Overcurrent protection: Yes. Screened cable: 28-16 AWG / 0.5 - 1.5 mm Maximum cable length: 1640 ft.

Analog inputs (AI)

Voltage signal ranges:

• 0.5 - 3.5 VDC, AL AU.

• 0-5 VDC, AU.

•0-10 VDC, AU. Voltage signal: R

> 100 kΩ at 77 °F.

Leak currents may occur at high operating temperatures. Keep the source impedance low.

Current signal ranges:

• 0-20 mADC, AU.

• 4-20 mADC, AL AU. Current signal: R

= 292 Ω.

Current overload protection: Yes. Change to voltage signal. Measurement tolerance: - 0/+ 3 % of full scale (max.-point

coverage). Screened cable: 28-16 AWG / 0.5 - 1.5 mm Maximum cable length: 1640 ft (excl. potentiometer). Potentiometer connected to +5 V, GND, any AI: Use maximum 10 kΩ. Maximum cable length: 328 ft.

= 0 VDC.

> 5 VDC).

Analog output (AO)

Current sourcing capability only. Voltage signal:

• Range: 0-10 VDC.

• Minimum load between AO and GND: 1 kΩ.

• Short-circuit protection: Yes. Current signal:

• Ranges: 0-20 and 4-20 mADC.

• Maximum load between AO and GND: 500 Ω.

• Open-circuit protection: Yes. Tolerance: - 0/+ 4 % of full scale (max-point coverage).

Screened cable: 28-16 AWG / 0.5 - 1.5 mm

Maximum cable length: 1640 ft.

Pt100/1000 inputs (PT)

Temperature range:

• Minimum -30 °C (88 Ω/882 Ω).

• Maximum +180 °C (168 Ω/1685 Ω). Measurement tolerance: ± 2.5 °F. Measurement resolution: < 0.5 °F. Automatic range detection (Pt100 or Pt1000): Yes. Sensor fault alarm: Yes.

Screened cable: 28-16 AWG / 0.5 - 1.5 mm

. Use Pt100 for short wires. Use Pt1000 for long wires.

LiqTec sensor inputs

Use Grundfos LiqTec sensor only.

Screened cable: 28-16 AWG / 0.5 - 1.5 mm

Grundfos Digital Sensor input and output (GDS)

Use Grundfos Digital Sensor only.

Power supplies (+5 V, +24 V) +5 V:

• Output voltage: 5 VDC - 5 %/+ 5 %.

• Maximum current: 50 mADC (sourcing only).

• Overload protection: Yes.

+24 V:

• Output voltage: 24 VDC - 5 %/+ 5 %.

• Maximum current: 60 mADC (sourcing only).

• Overload protection: Yes.

Digital outputs (relays)

Potential-free changeover contacts. Minimum contact load when in use: 5 VDC, 10 mA.

Screened cable: 28-12 AWG / 0.5 - 2.5 mm

. Maximum cable length: 1640 ft.

Bus input

Grundfos GENIbus protocol, RS-485.

Screened 3-core cable: 28-16 AWG / 0.5 - 1.5 mm

Maximum cable length: 1640 ft.

20. Other technical data

EMC (electromagnetic compatibility)

EN 61800-3. Residential areas, unlimited distribution, corresponding to CISPR

11, class B, group 1. Industrial areas, unlimited distribution, corresponding to CISPR

11, class A, group 1. Contact Grundfos for further information.

Enclosure class

Standard: IP55 (IEC 34-5). Optional: IP66 (IEC 34-5).

Insulation class

F (IEC 85).

Torques

Terminal Thread size

L1, L2, L3, L, N M4 1.3 NC, C1, C2, NO M2.5 0.37 1 to 26 and A, Y, B M2 0.37

20.1 Sound pressure level

Max. speed

Motor

[kW]

0.25 to

0.75

1.1

1.5

2.2

The grey fields indicate that the motor is not yet available in this MLE motor range, but is available in the previous MLE motor range.

stated on

nameplate

-1

[min

]

2000

4000

5900

2000

4000

5900

2000

4000

5900

2000

4000

5900

Speed

-1

[min

]

1500 38 38 2000 42 42 3000 53 53 4000 58 58 4000 58 58 5900 68 68 1500 2000 3000 53 53 4000 58 58 4000 58 58 5900 68 68 1500 2000 3000 57 57 4000 64 64 4000 58 58 5900 68 68 1500 2000 3000 4000 4000 5900

Max. torque

[lb. ft]

Sound pressure level

ISO 3743

[dB(A)]

1-phase

motors

3-phase

motors

38 42

57 64 58 68

English (US)

21. Disposal

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.

The waste battery should be disposed of through the national collective schemes. If in doubt, contact your local Grundfos company.

Subject to alterations.

Appendix

Note

1. Installation in the USA and Canada

In order to maintain the cURus approval, follow these additional installation instructions.

The approval is according to UL 1004-1.

1.1 Electrical codes

This product complies with the Canadian Electrical Code and the US National Electrical Code.

This product has been tested according to the national standards for Electronically Protected Motors:

CSA 22.2 100.04: 2009 (applies to Canada only). UL 1004-1: June 2011 (applies to USA only).

Codes de l'électricité

Ce produit est conforme au Code canadien de l'électricité et au Code national de l'électricité américain.

Ce produit a été testé selon les normes nationales s'appliquant aux moteurs protégés électroniquement:

CSA 22.2 100.04: 2009 (s'applique au Canada uniquement). UL 1004-1: Juin 2011 (s'applique aux États-Unis uniquement).

1.2 Radio communication

This device complies with part 15 of the FCC rules and RSS210 of IC rules.

Operation is subject to the following two conditions:

• This device may not cause interference.

• This device must accept any interference, including

interference that may cause undesired operation of the device.

Fuses

When the motor is protected by fuses, they must be rated for 480 V. Maximum sizes are stated in the table above.

Motors up to and including 3 HP require class K5 UR fuses.

Circuit breaker

When the pump is protected by a circuit breaker, this must be rated for a maximum voltage of 480 V. The circuit breaker must be of the "inverse time" type.

The interrupting rating (RMS symmetrical amperes) must not be less than the values stated in the table above.

1.4.5 Overload protection

Degree of overload protection provided internally by the drive, in percent of full-load current: 102 %.

Subject to alterations.

Appendix

1.3 Identification numbers

For USA

Grundfos Holding A/S Contains FCC ID: OG3-RADIOM01-2G4.

Pour le Canada

Grundfos Holding A/S Model: RADIOMODULE 2G4 Contains IC: 10447A-RA2G4M01.

Fig. 1 Identification numbers

1.4 Electrical connection

1.4.1 Conductors

Use 140/167 °F (60/75 °C) copper conductors only.

1.4.2 Torques

Maximum tightening torques for the terminals can be found in section Torques, page 37.

1.4.3 Line reactors

Maximum line reactor size must not exceed 1.5 mH.

1.4.4 Fuse size/circuit breaker

If a short-circuit occurs, the pump can be used on a power supply delivering not more than 5000 RMS symmetrical amperes, 600 V maximum.

Motor size Fuse size Circuit breaker type/model

1/2 - 3 HP 25 A 25 A / inverse time

U.S.A.

GRUNDFOS Pumps Corporation 17100 West 118th Terrace Olathe, Kansas 66061 Phone: +1-913-227-3400 Telefax: +1-913-227-3500

Canada

GRUNDFOS Canada Inc. 2941 Brighton Road Oakville, Ontario L6H 6C9 Phone: +1-905 829 9533 Telefax: +1-905 829 9512

Mexico

Bombas GRUNDFOS de México S.A. de C.V. Boulevard TLC No. 15 Parque Industrial Stiva Aeropuerto Apodaca, N.L. 66600 Phone: +52-81-8144 4000 Telefax: +52-81-8144 4010

Grundfos companies

98566351 0814

ECM: 1140852

www.grundfos.com

www.grundfos.us

The name Grundfos, the Grundfos logo, and be think innovate are registered trademarks owned by Grundfos Holding A/S or Grundfos A/S, Denmark. All rights reserved worldwide. © Copyright Grundfos Holding A/S

Grundfos CRE Series, CRIE Series, CRNE Series, SPKE Series, MTRE Series Installation And Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

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