Delta Control 2000 - Grundfos

Delta Control 2000

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

Delta Control 2000

Delta Control 2000

Declaration of Conformity

We GRUNDFOS declare under our sole responsibility that the products Delta Control 2000, to which this declaration relates, are in conformity with the Council Directives on the approximation of the laws of the EEC Member States relating to:

— Electromagnetic compatibility (89/336/EEC).Standards used: EN 61 000-6-2 and EN 61 000-6-3.

— Electrical equipment designed for use within certain voltage limits(73/23/EEC). Standard used: EN 60 204-1.

Bjerringbro, 1st September 2001

Jan StrandgaardTechnical Manager

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CONTENTS

Page

1. General 51.1 Related Documents 51.2 GRUNDFOS Delta Control 2000 51.3 Application Examples for Delta Control 2000 61.3.1 Delta Control 2000 F 61.3.2 Delta Control 2000 E 6

2. Installation 72.1 Location 72.2 Electrical Connection 7

3. Systems without PMU 2000 83.1 Start-Up 83.2 Taking out of Operation 83.3 Control Functions and Settings 93.3.1 Closed-Loop Control 93.3.2 Cascade Control 93.3.3 Automatic Pump Change 93.3.4 Test Run 93.4 Control Parameters 93.4.1 Setpoint 93.4.2 Setpoint Influences 103.4.3 System Time 103.4.4 Minimum Switching Sequence 103.4.5 PFU 2000 Analog Input 1 Configuration 103.4.6 PFU 2000 Analog Input 2 Configuration 103.4.7 PFU 2000 Digital Input 4 Configuration 10

4. Systems with PMU 2000 114.1 Start-Up 114.2 Taking out of Operation 114.3 Control Functions and Settings 124.3.1 Closed-Loop Control 124.3.2 Cascade Control 124.3.3 Manual On/Off and Setting to Max. or Local 124.3.4 Automatic Pump Change 124.3.5 Test Run 124.3.6 Clock Functions 134.3.7 Standby Pumps 134.3.8 Reduced Operation 134.3.9 Pump Priority 134.4 Control Parameters 144.4.1 Allocation of Pumps to Zone 144.4.2 Zone Type / Control Parameter 144.4.3 Priority of Settings 154.4.4 Setpoint 164.4.5 Setpoint Influences 164.4.6 P-Band (Proportionality Band) 174.4.7 Measuring Unit for Control Value 174.4.8 System Time 174.4.9 Minimum Switching Sequence 174.4.10 Control Function 174.4.11 PFU 2000 Analog Input 1 Configuration 184.4.12 PFU 2000 Analog Input 2 Configuration 184.4.13 PFU 2000 Analog Input 3 Configuration 194.4.14 PFU 2000 Digital Input 4 Configuration 194.4.15 Ramp Time 194.4.16 Maximum Limit 204.4.17 Minimum Limit 204.4.18 Operation at Minimum Limit 204.5 Operation of PMU 2000 214.5.1 Status Display 214.6 Display Overviews 234.6.1 PFU 1: Differential Pressure 244.6.2 PFU 2: Differenential Temperature 264.6.3 PFU 3: Flow-Pipe or Return-Pipe Temperature 284.6.4 PFU 4: Flow 304.6.5 PFU 5: Level 324.6.6 PFU 6: Open Loop 34

5. Monitoring Functions 365.1 Fault Indications 365.1.1 Resetting of Fault Indication 365.2 Fault Causes 365.2.1 Communication Faults 365.2.2 Motor Overtemperature 365.2.3 Frequency Converter 365.2.4 Transmitter Fault 375.2.5 Maximum Limit of Actual Value 375.2.6 Minimum Limit of Actual Value 375.2.7 Voltage Drop 37

6. Operating and Fault Indications 387. Fault Finding Chart 388. Configuration before Start-Up 398.1 PFU 2000 DIP Switch Settings 398.2 Frequency Converter Settings 408.3 Configuration of MGE Motors 408.3.1 Pumps with Single-Phase Motors 408.3.2 Pumps with Three-Phase MGE Motors 408.4 Electrical Data 41

9. Maintenance 419.1 Maintenance of Delta Control 2000 41

10. Glossary 42

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1. General Delta Control 2000 is a range of controllers designed for the con-trol of pumps in heating and air-conditioning systems.

Delta Control 2000 controllers incorporate all the components necessary for the control and monitoring of from one to four pumps in parallel.

Delta Control 2000 features two main groups, i.e. Delta Control 2000 F and Delta Control 2000 E.Delta Control 2000 F includes a standard frequency converter and can be used for the control of pumps with standard motors.Delta Control 2000 E is used when the system comprises E-pumps, i.e. GRUNDFOS pumps fitted with GRUNDFOS MGE motors.

Both main groups have an H version (half-size). The H version in-cludes two pumps which provide approx. the same head as one full-size pump, but only approx. half the flow.

1.1 Related DocumentsIn addition to these Installation and Operating Instructions, the following documents are supplied with the controller:

• List of Control Parameters (factory configuration).

• Wiring diagram.

1.2 GRUNDFOS Delta Control 2000 A standard Delta Control 2000 always includes the electronics unit PFU 2000 (Pump Functional Unit 2000).

The Delta Control 2000 is also available with a PMU 2000 (Pump Management Unit 2000).The PMU 2000 enables reading out of operating data as well as optimization of operation to the prevailing operating conditions.

If the Delta Control 2000 includes the PFU 2000 only, it will be placed in the front cover. If the controller includes both the PFU 2000 and the PMU 2000, the PMU 2000 will be placed in the front cover and the PFU 2000 inside the cabinet.

The Delta Control 2000 is factory-set in accordance with the “List of Control Parameters” supplied with the controller.

Delta Control 2000 without PMU 2000 offers the following func-tions:

• Closed-loop control.

• Automatic changeover to mains operation in case of defective frequency converter (Delta Control 2000 F only).

• Automatic cascade control of pumps.

• Possibility of setpoint influence:

– proportional influence (proportional pressure), – external setpoint influence.

• Possibility of digital remote-control function:

– system on/off.

• Pump and system monitoring functions:

– minimum and maximum limits of actual value,– motor protection.

• Display and indication functions:

– green indicator light for operating indications andred indicator light for fault indications,

– potential-free changeover contacts for operation and fault.

• GRUNDFOS BUS communication.

Delta Control 2000 with PMU 2000 offers the following func-tions:

• Closed-loop control.

• Automatic changeover to mains operation in case of defective frequency converter (Delta Control 2000 F only).

• Automatic cascade control of pumps.

• Selection of switching sequences, automatic pump change and pump priority.

• Manual operation.

• Possibility of setpoint influence:

– proportional influence (proportional pressure), – external setpoint influence.

• Possibility of digital remote-control functions:

– system on/off,– reduced operation,– setpoint control with two-point switch,– setpoint control with three-point switch,– alternative setpoint.

• Pump and system monitoring functions:

– minimum and maximum limits of actual value,– motor protection.

• Display and indication functions:

– 2 x 24 character LCD display,– green indicator light for operating indications and

red indicator light for fault indications,– potential-free changeover contacts for operation and fault.

• Clock functions.

• GRUNDFOS BUS communication.

PCU 2000

A PCU 2000 (Pump Communication Unit 2000) can be connected to the Delta Control 2000 via the BUS input. The PCU 2000 ena-bles remote operating and fault indication for each individual pump.The PCU 2000 also enables external setpoint influence and sys-tem on/off.

Main Group

Sub- group

System Functions

Del

ta C

on

tro

l 200

0 F MF

All pumps are full-size pumps. One pump is controlled by the frequency converter. The other pumps are mains-operated (on/off).All pumps will be controlled by the frequency converter in rotation.

MFH

Two half-size pumps. The other pumps are full-size pumps.The two half-size pumps will be con-trolled by the frequency converter in rotation. Full-size pumps are mains-operated (on/off).

Del

ta C

on

tro

l 20

00 E

ME

All pumps are full-size pumps fitted with MGE motors.All pumps in operation are speed-controlled (same speed).

MEH

Two half-size pumps are fitted with MGE motors (same speed if both pumps are operating).Full-size pumps are mains-operated (on/off).

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1.3 Application Examples for Delta Control 2000The following tables show the functional principles of the various versions of Delta Control 2000:

1.3.1 Delta Control 2000 F

1.3.2 Delta Control 2000 E

Example: Delta Control 2000 MF.Constant differential-pressure control.

Example: Delta Control 2000 MFH.Constant differential-pressure control.

Four full-size pumps of equal size. One pump is controlled by the frequency converter. The other three pumps are mains-operated (on/off).

TM

01

102

4 3

397

Two half-size pumps and two full-size pumps. The two half-size pumps are controlled by the frequency converter in rotation. The two full-size pumps are mains-operated (on/off).

TM

01

102

5 3

397

One pump in operation via frequency converter.

TM

01 1

08

6 36

97

One half-size pump in oper-ation via frequency con-verter.

TM

01 1

08

8 36

97

One pump in operation via frequency converter. Two pumps are mains-operated (on/off).

TM

01

108

7 3

697

One half-size pump in oper-ation via frequency con-verter. One full-size pump is mains-operated (on/off).

TM

01

108

9 3

697

Delta Control 2000 MF maintains a constant differential pressure through continuously variable adjustment of the speed of one pump. The other mains-operated pumps are cut in/out according to the demand.The pump controlled by frequency converter always starts first.Pump changeover is automatic and depends on load, time and fault.All pumps will be controlled by the frequency converter in rota-tion.

Delta Control 2000 MFH maintains a constant differential pres-sure through continuously variable adjustment of the speed of one half-size pump. The other pumps are mains-operated.The half-size pump controlled by frequency converter always starts first.Pump changeover is automatic and depends on load, time and fault.

P

PFU 2000

P

PFU 2000

Q

H

H set

Q

H

H set

Q

H

H set

Q

H

H set

Example: Delta Control 2000 ME.Constant differential-pressure control.

Example: Delta Control 2000 MEH.Constant differential-pressure control.

Three full-size pumps of equal size with MGE motors.

TM

01 1

026

33

97

Two half-size pumps with MGE motors and one mains-operated full-size pump (on/off).

TM

01 1

027

38

97

One pump in operation.

TM

01

109

0 3

697 One half-size pump with

MGE motor in operation.

TM

01

109

2 3

697

Three pumps in operation.

TM

01 1

09

1 36

97

One half-size pump with MGE motor and the full-size pump in operation.

TM

01 1

09

3 36

97

Delta Control 2000 ME maintains a constant differential pressure through continuously variable adjustment of the speed of the pumps connected.The system performance is adjusted to the demand through cut-ting in/out the required number of pumps and through parallel control of the pumps in operation.Pump changeover is automatic and depends on load, time and fault.

Delta Control 2000 MEH maintains a constant differential pres-sure through continuously variable and parallel adjustment of the speed of the two half-size pumps with MGE motors, while the full-size pump is mains-operated (on/off).The half-size pumps always start first.Pump changeover is automatic and depends on load, time and fault.

P

PFU 2000

MGE MGE MGE P

PFU 2000

MGE MGE

Q

H

H set

Q

H

H set

Q

H

H set

Q

H

H set

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2. Installation

2.1 LocationThe Delta Control 2000 must be installed in a well ventilated room. The controller is not suitable for outdoor installation.

The controller should be placed with a 1 metre clearance in front of the unit.

Use a fork-lift truck to move the controller. It is shown on the con-troller where it can be lifted.

2.2 Electrical ConnectionThe connection of electricity supply, signal transmitters and exter-nal monitoring equipment must be carried out by an authorized electrician in accordance with local regulations and the relevant wiring diagram.

Make sure that the Delta Control 2000 and the pumps are suita-ble for the electricity supply on which they will be used. Pay spe-cial attention to “Important Notes” in the wiring diagram.

Note: For single-phase MGE motors, the mains neutral lead must be sized for the nominal current of the Delta Control 2000 E.

The installation and operation should be in accord-ance with local regulations and accepted codes of good practice.

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3. Systems without PMU 2000Fig. 1

3.1 Start-UpTo start up a controller Delta Control 2000 without PMU 2000, fol-low this procedure:

1. Check that the controller corresponds to the one that was or-dered and that no single parts have been damaged.

2. Connect pumps, electricity supply and signal transmitters.Check that the wire cross-section corresponds to the specifi-cations in the wiring diagram. Set the motor starter in accordance with the motors con-nected.

3. Set the DIP switches in the PFU 2000, see section 8.1 PFU 2000 DIP Switch Settings.

4. Delta Control 2000 E only: Set the MGE motors in accord-ance with section 8.3 Configuration of MGE Motors.

5. Switch off the automatic circuit breakers or motor starters of all pumps.Delta Control 2000 F only: Switch off the electricity supply to the frequency converter on “Q01”.

6. Fill pumps and pipes with water.

7. Turn the function selector in the PFU 2000 to “MAX”. Switch on the automatic circuit breaker or motor starter of pump 1.Switch on the automatic circuit breaker for the control current “F01”.Switch on the mains switch.After approx. 15 secs., pump 1 will start.

Fig. 2

8. Check the direction of rotation of the pump. If the direction of rotation is wrong, interchange two wires on the motor.

9. Vent the pump.

10. Repeat points 6, 7 and 8 for all pumps.

11. When all pumps have been vented, and the direction of rota-tion has been checked and changed, if required, switch on the automatic circuit breakers or motor starters of all pumps.Delta Control 2000 F only: Switch on the electricity supply to the frequency converter on “Q01”.

12. Turn the function selector until the required performance can be read.

13. Check that all pumps cut in/out to adjust the performance to the consumption.

3.2 Taking out of OperationTo take the Delta Control 2000 out of operation, switch off the mains switch.

Individual pumps are taken out of operation by switching off the corresponding automatic circuit breaker or motor starter.

TM

00

272

1 2

397

TM

00

521

7 2

796

PFU 2000 Front Cover

Reset

100%0%

MAXSTOP

Setpoint

Function Selector in the PFU 2000

The leads in front of the mains switch are still ener-gized. Lock the mains switch to ensure that it cannot be accidentally switched on.

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3.3 Control Functions and Settings

3.3.1 Closed-Loop ControlThe closed-loop controller (a control system with a feed-back sig-nal from a transmitter) is programmed for operation of centrifugal pumps and takes their influence on the hydraulic system into ac-count.

Fig. 3

3.3.2 Cascade ControlCascade control ensures automatic matching of the performance to the system demand by cutting in/out the required number of pumps.

The controller will operate the system with as few pumps as pos-sible.

3.3.3 Automatic Pump ChangeThere are three possibilities of automatic pump change:

1. Operation-dependent pump change.This applies to pumps of equal priority. The pump which is switched on first will be switched off first if the demand falls.

2. Fault-dependent pump change.If a pump is faulty, it will be switched off and the next pump ready for operation will be switched on.

3. Time-dependent pump change.This ensures that the operating hours are distributed evenly on the pumps connected. This function is combined with the test run function.

Time-dependent pump change is carried out the first time5 minutes after the electricity supply has been switched on and then every 24 hours.

3.3.4 Test RunTo eliminate the risk of blocking of pumps which are not switched on regularly, a test run is carried out.

The test run causes all operative pumps to be started once be-tween two time-dependent pump changes for 1 sec.

3.4 Control ParametersControllers without PMU 2000 can be used in systems with small time constants and have been preset to control parameter “differ-ential pressure”, but they can also be used for other control pa-rameters like “flow”, etc.

For further information, see section3.4.3 System Time.

Fig. 4

Fig. 5

3.4.1 SetpointThe setpoint is set by means of the function selector in the PFU 2000 which has three positions, see fig. 6.

• “STOP”All pumps are stopped and no setpoint is set. Fault indications will be reset.

• “0% to 100%”By means of the function selector the required setpoint can be set within the range from 0% to 100%. 100% corresponds to the maximum value of the transmitter.

• “MAX”The PFU 2000 starts all pumps at maximum performance. All internal monitoring functions are active. Remotely set set-points or external on/off are not active.

Fig. 6

TM

01 1

124

38

97

PFU 2000

P

Differential Pressure

TM

01 1

12

4 38

97

Flow

TM

01 1

125

38

97T

M0

0 5

217

27

96

PFU 2000

P

FT

PFU 2000

100%0%

MAXSTOP

Setpoint

Function Selector in the PFU 2000

10

3.4.2 Setpoint InfluencesSetpoint Influences via External Signals:

The PFU 2000 analog input 3 can be connected to a 0-10 V or 0-20 mA signal for remote setting of setpoint.

Fig. 7

The locally set setpoint is set by means of the function selector in the PFU 2000, see fig. 6.

The necessary hardware configuration is described in section8.1 PFU 2000 DIP Switch Settings.

3.4.3 System Time System time is defined as the time that passes from a change in pump speed is made until the measured value reaches approx. 70% of the corresponding final change.

The system time is 2 secs.

Fig. 8

1. Final value after a jump in speed.

2. Actual value.

3. System time.

3.4.4 Minimum Switching SequenceMinimum switching sequence is the time between two switchings (on/off of pumps).

The minimum switching sequence has been set to 5 secs.

3.4.5 PFU 2000 Analog Input 1 ConfigurationThe PFU 2000 analog input 1 value is the measured value in the system. The PFU 2000 receives a signal from the signal transmit-ter installed.

The following analog signals can be connected and evaluated:

– 0-10 V,– 0-20 mA, – 4-20 mA.

The evaluation of the input signal depends on the transmitter measuring range and the measuring unit of the actual value.

The necessary hardware configuration is described in section 8.1 PFU 2000 DIP Switch Settings.

3.4.6 PFU 2000 Analog Input 2 ConfigurationIn systems without PMU 2000, the PFU 2000 analog input 2 has no function.

3.4.7 PFU 2000 Digital Input 4 ConfigurationThe PFU 2000 digital input 4 can be used for “remote on/off”. When the PFU 2000 digital input 4 contact is open, all pumps are switched off.

TM

00 7

048

02

96T

M0

0 7

992

22

96

0 10 V

Locally set setpoint

100%

Current setpoint

Tra

nsm

itter

ran

ge

Setpoint via External SignalsActual setpoint

Locally set setpoint

Tran

smitt

er r

ange

0 10 V0 20 mA

Time

H

3.

70%10

0%

1.

2.

System Time

Time

11

4. Systems with PMU 2000Fig. 9

4.1 Start-UpTo start up a controller Delta Control 2000 with PMU 2000, follow this procedure:

1. Check that the controller corresponds to the one that was or-dered and that no single parts have been damaged.

2. Connect pumps, electricity supply and signal transmitters.Check that the wire cross-section corresponds to the specifi-cations in the wiring diagram. Set the motor starter in accordance with the motors con-nected.

3. Set the DIP switches in the PFU 2000, see section 8.1 PFU 2000 DIP Switch Settings.

4. Delta Control 2000 E only: Set the MGE motors in accord-ance with section 8.3 Configuration of MGE Motors.

5. Switch off the automatic circuit breakers or motor starters of all pumps.Delta Control 2000 F only: Switch off the electricity supply to the frequency converter on “Q01”.

6. Fill pumps and pipes with water.

7. Turn the function selector in the PFU 2000 to “50%”. Switch on the automatic circuit breaker or motor starter of all pumps.Switch on the automatic circuit breaker for the control current “F01”.Switch on the mains switch.

8. Via the start/stop menu (display 300), the zone is released for operation “on”. Each individual pump is set to “off” (display 301).

9. Release pump 1 for operation “on” (display 301) via the start/stop menu. Pump 1 starts after approx. 15 secs.

10. Check the direction of rotation of the pump. If the direction of rotation is wrong, interchange two wires on the motor.

11. Vent the pump and set it to “off” (display 301). The pump stops.

12. Repeat points 8, 9 and 10 for all pumps.

13. When all pumps have been vented, and the direction of rota-tion has been changed, if required, release all pumps for op-eration “on” (display 300).Delta Control 2000 F only: Switch on the electricity supply to the frequency converter on “Q01”.

14. Set the desired setpoint in the setting menu (display 200).

15. Check that all pumps cut in/out to adjust the performance to the consumption.

4.2 Taking out of OperationTo take the Delta Control 2000 out of operation, switch off the mains switch.

Individual pumps are taken out of operation by switching off the corresponding automatic circuit breaker or motor starter.

TM

00

702

3 2

497

300 Zone A diffpr.switched to on

301 Pump 1 (not availabl)switched to off

301 Pump 2 (not availabl)switched to off

Pump in<<< End of menu >>>

PMU 2000 Front Cover

OnOff

The leads in front of the mains switch are still ener-gized. Lock the mains switch to ensure that it cannot be accidentally switched on.

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4.3 Control Functions and Settings

4.3.1 Closed-Loop ControlThe closed-loop controller (a control system with a feed-back sig-nal from a transmitter) is programmed for operation of centrifugal pumps and takes their influence on the hydraulic system into ac-count.

Fig. 10

The only control parameter to be set to adapt the controller to the system conditions is “system time” (display 204).

4.3.2 Cascade ControlCascade control ensures automatic matching of the performance to the system demand by cutting in/out the required number of pumps.

The controller will operate the system with as few pumps as pos-sible.

The frequency of starts and stops is limited by the setting of mini-mum and medium switching sequences.

For further information, see section3.4.4 Minimum Switching Sequence.

4.3.3 Manual On/Off and Setting to Max. or LocalFig. 11

In the start/stop menu, the “On/Off” button on the PMU 2000 gives quick access to:

• manual on/off of zone (the whole system) and setting to max. or local,

• manual on/off of individual pumps.

In this menu, the zone and the pumps allocated to this zone ap-pear one by one when the arrow buttons are pressed.

The operating condition of the zone or pump in question is dis-played in the top line. In the bottom line, a new status can be se-lected.

Start/stop of zones (display 300):

• “on”All pumps in the zone are ready for operation.

• “off”All pumps in the zone are switched off.

• “max.”All pumps in the zone are operating at maximum performance.

• “local”The controller has been set to local mode and will operate ac-cording to the local control parameter settings.See section 8.1 PFU 2000 DIP Switch Settings.

If the function selector in the PFU 2000 has been turned to posi-tion MAX, the setpoint influences, “clock program” and “remote on/off” are not effective.

Start/stop of pumps (display 301):

• “on”The pump is ready for operation.

• “off”The pump is switched off.

4.3.4 Automatic Pump ChangeThere are three possibilities of automatic pump change:

1. Operation-dependent pump change.This applies to pumps of equal priority. The pump which is switched on first will be switched off first if the demand falls.

2. Fault-dependent pump change.If a pump is faulty, it will be switched off and the next pump ready for operation will be switched on.

3. Time-dependent pump change.This ensures that the operating hours are distributed evenly on the pumps in the zone. This function is combined with the test run function.

When “pump change” is set to “on” (display 208), time-de-pendent pump change is carried out at the first time set in “pump change at” “00:00 h” (display 209).The default setting of “pump change” is “on” (display 208).The default setting of “pump change at” is “00:00 h” (display 209).If “pump change” is set to “off” (display 208), no time-depend-ent pump change or test run will be carried out.

4.3.5 Test RunTo eliminate the risk of blocking of pumps which are not switched on regularly, a test run is carried out.

The test run causes all operative pumps to be started once be-tween two time-dependent pump changes for 1 sec.

TM

00

498

5 4

894

PFU 2000

PMU 2000

P

BUS

OnOff

13

4.3.6 Clock FunctionsIf the system demand varies during the day and/or during the week, the pump performance required will also vary. In this case, a clock program can be set in order to achieve optimum perform-ance of the pumps.

It is possible to set a total of 10 switching times, all with individual setpoints (display 201).

If “setpoint max.” (display 200) is changed after the clock program has been set, the clock program will be changed proportionally.

Application: Time-dependent reduction of setpoint to minimize power consumption or to optimize the performance.

Fig. 12

To ensure correct operation with the clock functions, the time and date can be set in the basic menu of the PMU 2000 (display 103).

Supply failure does not influence the clock program.

4.3.7 Standby PumpsIn zones with more than one pump, the number of standby pumps can be selected in “stand-by pumps” (display 226). A standby pump is only started if the duty pump is faulty.Example: In a system with four pumps, of which one pump has been selected as standby-pump, the maximum number of pumps in operation at the same time will be three. The standby pump is only started if the duty pump is faulty.

The standby pump(s) will be included in the automatic pump change and the test run.

The setting range is from one pump to the number of pumps con-nected to the zone less one.

The default setting is 0.

If individual pumps are to be defined as standby pumps, these pumps must be set to a lower priority than the duty pumps.

For further information, see section4.3.9 Pump Priority.

4.3.8 Reduced OperationIf reduced operation is activated, a number of pumps, but not in-dividual pumps, can be defined as pumps ready for operation. The system performance is restricted to the set number of pumps.

Reduced operation is activated if the PFU 2000 digital input 4 is set to “reduced op” (display 222) and the input 4 contact is closed.

The number of pumps required to run when reduced operation is activated is set in the display appearing after display 222.

The setting range is from one pump to the number of pumps con-nected to the zone less one.

Application: Emergency power operation with a limited perform-ance.


4.3.9 Pump PriorityThe set “pump priority” (display 227) determines the operating priority of the pumps connected to a zone.

Pumps with the highest priority are switched on first. Pumps with the lowest priority are switched off first.

Pumps of equal priority and equal size are subject to:

First in, first out.

The setting range is 1 (highest priority) to 8 (lowest priority).

In systems types MFH and MEH, all pumps must be set to the same priority. Different settings will be ignored.


TM

00

498

9 4

894

Setpoint

1 3

C

A

2 Time

B

Clock Program with Three Switching Times

Time

Setpoint

14

4.4 Control ParametersThe display numbers mentioned in the following refer to the dis-play overviews in section 4.6 Display Overviews.

The influence of the control parameters is described below.

The default settings and the actual settings are listed in the “List of Control Parameters”.

4.4.1 Allocation of Pumps to ZoneThe pumps in the system are organized in zones. The number of pumps in a zone is set by means of the DIP switches in the PFU 2000. This setting will be applied by the PMU 2000.

For further information, see section8.1 PFU 2000 DIP Switch Settings.

4.4.2 Zone Type / Control ParameterZone type and control parameter will activate typical functions. Only relevant displays will appear in the PMU 2000 display.

The zone type has been preset, but it will also be identified by the PMU 2000 according to the units connected to the GRUNDFOS BUS. The presetting will automatically be changed in case of de-viation.

Example:

If the zone type has been preset to UPE (display 111) and a PFU 2000 is connected to the zone, the preset zone will automat-ically be changed into PFU.

The PMU 2000 has been developed for the control of various pumps or pumping systems. The PMU 2000 can for instance be used for the control of GRUNDFOS circulator pumps type UPE and pumping systems and controllers based on the PFU 2000.

In the PMU 2000, the presetting is made in the submenu “preset-ting” (display 111) in the basic menu. Presettings are made zone-wise. In the presetting submenu, only zones to which pumps have been allocated will appear.

The control parameter can only be selected in the presetting sub-menu (display 111).

Possible control parameters for zone type PFU:

1. Differential pressure, see fig. 13.

2. Differential temperature, see fig. 14.

3. Flow-pipe, return-pipe or differential temperature with one sen-sor signal, see fig. 15.

4. Flow, see fig. 16.

5. Level, see fig. 17.

6. Open loop, see fig. 18.

7. Pressure, not shown.

8. Pressure with pre-pressure measuring, not shown.

Fig. 13

Fig. 14

Fig. 15

PFU 1: Differential Pressure

TM

00 4

985

48

94

PFU 2000

PMU 2000

P

BUS

PFU 2: Differential Temperature

TM

00

499

8 3

897

PFU 3: Flow-Pipe Temperature

TM

00

271

8 3

897

PFU 3: Return-Pipe Temperature

TM

00 2

719

38

97

PFU 3: Differential Temperature

TM

01 1

257

40

97

PMU 2000

BUS

T

PFU 2000

T

PFU 2000

PMU 2000

BUS

PMU 2000

T

PFU 2000

BUS

PMU 2000

T

PFU 2000

BUS

15

Fig. 16

Fig. 17

Fig. 18

The control parameter is set in two steps:

• Select control parameter number.

• Select measuring unit (if the desired unit differs from the pre-setting).For further information, see section4.4.7 Measuring Unit for Control Value.

When changes have been made or presetting has been activated, all pumps will be switched off to enable further settings without the pumps operating under unintended conditions.

For various applications, typical presettings have been made un-der the presetting control parameter number.

Note: The activation of a presetting parameter overwrites actual settings of a zone.

4.4.3 Priority of SettingsIf “Max.” and “Stop” are activated at the same time, the pumps will operate according to the function with the highest priority.

Example:

If the pumps have been set to stop via the PMU 2000 and at the same time to maximum operation in the PFU 2000, the pumps will run in maximum operation because of the higher priority.

PFU 4: Flow

TM

00

271

5 3

897

PFU 5: Level

TM

01

112

3 3

897

PFU 6: Open Loop

TM

00

498

6 4

894

PMU 2000

BUS

FT

PFU 2000

BUS

PMU 2000

h

LTPFU 2000

PFU 2000

PMU 2000

BUS

PriorityPossible Settings

PFU 2000 PMU 2000 PCU 2000

High Stop

Max.

Stop

Max.

Stop

Low Max.

16

4.4.4 SetpointThe maximum setpoint is set in “setpoint max.” (display 200). This value is the upper limit of the setpoint and forms the basis of the calculation of “setpoint act.” (display 401) which takes all set-point influences into account. The product of “setpoint max.” and all setpoint influences forms “setpoint act.”, which is the actual setpoint according to which the closed-loop controller operates.

If the zone has been set to “local” (display 300), “setpoint max.” can be set by means of the function selector in the PFU 2000.

“Setpoint max1” (display 222) will be activated if it is set to “on” and the PFU 2000 digital input 4 contact is closed.

“Setpoint max1” functions like “setpoint max.”, but it cannot be in-fluenced by the clock program.

The setting range of “setpoint max.” and “setpoint max1” is equal to the measuring range of the actual transmitter.

4.4.5 Setpoint InfluencesIn order to optimize the operation of the system, it is often advan-tageous to operate the system with a variable setpoint instead of a constant setpoint. The selected setpoint influences reduce “set-point max.” according to their settings.

More than one setpoint influence can be active simultaneously. The influence types are described below. The product of all influ-ences and “setpoint max.” forms “setpoint act.”.

For further information, see section3.4.1 Setpoint.

Friction loss compensation:

If the system is to compensate for friction loss, this is possible by selecting progressive influence.When “progressive infl” is set to “on” (display 202), “setpoint act.” will be increased linearly from the adjustable percentage at zero flow to 100% at maximum flow. Maximum flow is the sum of the maximum flows of all the pumps in the zone minus the standby pumps.The actual flow is estimated according to internal operating data without measuring the flow.

Fig. 19

Setpoint Influences via External Signals:

If “influence” is selected (display 217), it is important to set the re-quired table value.

Fig. 20

The following external setpoint influences are possible:

• “off”No setpoint influence table (clock program, progressive influ-ence (friction loss compensation) and remote control of set-point via the PCU 2000 are possible).

• “extern” (%)An external analog signal or potential-free contact on the PFU 2000 analog input 3 influences the setpoint in accord-ance with a table.With the PFU 2000 analog input 3 as a 0-10 V input and the setting “extern” %, the input may be used as “remote on/off” for all pumps which have not been defined as ‘not to be switched off’.See section 4.3.8 Reduced Operation.If the PFU 2000 input 3 contact is:open = maximum value of the table.closed = minimum value of the table.Examples of application: Changeover to night-time duty or analog setpoint control from a building management system.

• “timer” (minutes)An internal timer program in the PMU 2000 controls the set-point in accordance with a table. This timer is started when the contact on the PFU 2000 input 3 is closed.The setting range is 0 to 200 minutes.Application: Processes in which a time-controlled shape of the setpoint must be achieved during a certain period.

• “Temp Tf” (°C, °F)The flow-pipe temperature (measured on the PFU 2000 input 3) controls the setpoint in accordance with a table.

• “Temp Tr” (°C, °F)The return-pipe temperature (measured on the PFU 2000input 3) controls the setpoint in accordance with a table.

• “Temp To” (°C, °F)The ambient temperature (measured on the PFU 2000 input 3) controls the setpoint in accordance with a table.

• “level” (m, cm, ft, in)The level signal (PFU 2000 input 3) controls the setpoint in ac-cordance with a table.

• “flow” (m3/h, l/h, l/s, gpm)The flow signal (PFU 2000 input 3) controls the setpoint in ac-cordance with a table.Example of application: Differential pressure drop compensa-tion in circulation systems if a flow meter signal is available.

• “flow/I” (%), (applies only to Delta Control 2000 F)An internal flow signal controls the setpoint in accordance with a table.Example of application: Differential pressure drop compensa-tion in circulation systems if no flow meter signal is available.

Remote Control of Setpoint via a PCU 2000:

Via a PCU 2000, it is possible to remote-control the sepoint line-arly to an analog signal. To do this, connect all PCU 2000 inputs in parallel to the zone with the analog signal.Note: “Influence” (display 217) must be “off”.

TM

00 4

99

1 48

94

Setpoint max

Q

H

100 %

60 %

Friction Loss Compensation

Setpoint max.

Set A0 % ->STOP bar

Set A50 % -> 0,5 bar

Set A80 % -> 1,5 bar

Set A100 % -> 1,9 bar

Example of Setpoint Influence Table

17

4.4.6 P-Band (Proportionality Band)(Applies only to control parameter PFU 3: “Flow-pipe or return-pipe temperature”.)

When the flow-pipe or the return-pipe temperature is used as the control basis, a value can be set for the “P-band” parameter (display 206).

The P-band is defined as the temperature difference that changes the pump performance from 0% to 100% or vice versa.

• Broad P-band:Large continuous control deviation, slow-acting system.

• Narrow P-band:Small continuous control deviation, risk of hunting.

Control deviation is the difference between the required and the actual value.

The default value is 10 K (10°C).

Fig. 21

4.4.7 Measuring Unit for Control ValueIf the signal transmitter used features a measuring unit different from the one in the presetting, an alternative measuring unit can be selected (display 213). The measuring unit selected will auto-matically be changed in the relevant displays, but the measuring range of the signal transmitter will not be converted automatically.It is also important to convert and set the output signal as well as minimum and maximum values of the signal transmitter operating range (displays 219 and 220).

The following measuring units can be selected:

1. Differential pressure: m, Pa, ft, kPa.

2. Differential temperature: K, °F.

3. Temperature: °C, °F.

4. Flow: m3/h, l/h, l/s, gpm.

5. Level: m, cm, ft, in.

6. Open loop: %.

4.4.8 System Time System time is an adjustable parameter to adapt the behaviour of the controller to the hydraulic system (display 204). System time is defined as the time that passes from a change in pump speed is made until the measured value reaches approx. 70% of the cor-responding final change.

A too low setting involves the risk of hunting.

A too high setting causes delays in reaching the setpoint.

The setting range is 0.4 to 800 secs.

Fig. 22

1. Final value after a jump in speed.

2. Actual value.

3. System time.

4.4.9 Minimum Switching SequenceMinimum switching sequence is the time between two switchings (on/off of pumps).

To prevent hunting in the system and to limit pressure and current surges, a minimum time between switching the individual pumps on and off can be set (display 205).

The higher the set value (sec.), the bigger the risk of differences between setpoint and actual value.

In order to avoid that the “actual value” exceeds “max. limit”, the minimum switching time is temporarily set to 1 sec. if the actual value exceeds the mean value between “setpoint max.” and “max. limit”.

The setting range is 2 to 300 secs.

For further information, see section4.3.2 Cascade Control.

4.4.10 Control FunctionThe “control function” (display 214) determines how the system is to react to any difference between the actual value and the set-point set.

The following control functions are possible:

• “normal”If the actual value is lower that the setpoint, the pump perform-ance will be increased (the controller amplifies the output sig-nal).

• “invers”If the actual value is lower than the setpoint, the pump per-formance will be reduced (the controller diminishes the output signal).

Dependent on the control parameter selected, the required con-trol function is as follows:

TM

00

499

3 4

894

Setpoint

100 %

Akt. temp.

P - bånd

0

Pumpeydelse

Setpoint

Pump performance

Act. temp.

P-band

TM

00

799

2 2

296

Time

H

3.

70%10

0%

1.

2.

System Time

Time

18

4.4.11 PFU 2000 Analog Input 1 ConfigurationThe PFU 2000 analog input 1 value is the measured value in the system (display 219). The PFU 2000 receives a signal from the signal transmitter installed.


– 0-10 V,– 0-20 mA, – 4-20 mA.

The evaluation of the input signal depends on the setting of the control parameter, the transmitter measuring range and the measuring unit of the actual value.

The necessary hardware configuration is described in section 8.1 PFU 2000 DIP Switch Settings.

4.4.12 PFU 2000 Analog Input 2 ConfigurationThe PFU 2000 analog input 2 has various functions, depending on the selected control parameter (presetting).


– 0-10 V,– 0-20 mA, – 4-20 mA.

Input 2 can also be used together with input 4 for three-point-con-trol of setpoint. See section 4.4.14 PFU 2000 Digital Input 4 Con-figuration. In this case, input 2 is connected to a digital signal (potential-free contact).


Control Parameter

Ap

pli

cati

on Control

Function

no

rmal

inve

rted

Differential pressure

TM

00 4

985

48

94

Heating systems

●

Air-con-dition-

ing systems

●

Constant flow-pipe temperatureT

M00

27

18 3

897

Heating systems

●

Air-con-dition-

ing systems

●

Constant return-pipe temperature

TM

00 2

719

38

97

Heating systems

●

Air-con-dition-

ing systems

●

Differential temperature

TM

01 1

257

40

97

Heating systems

●

Air-con-dition-

ing systems

●


TM

00 4

998

38

97

Heating systems

●

Air-con-dition-

ing systems

●

Level

TM

00

499

7 0

295

Filling systems

●

Drain-ing sys-

tems●

PFU 2000

PMU 2000

P

BUS

T

PFU 2000

PMU 2000

BUS

PMU 2000

T

PFU 2000

BUS

PMU 2000

T

PFU 2000

BUS

PMU 2000

BUS

T

PFU 2000

PFU 2000

FT

PMU 2000BUSPFU 2000

FT

PMU 2000 BUS

Filling Draining

Control ParameterDisplay and

SettingApplication of

Input 2

PFU 1: Differential pressure - No function.

PFU 2: Differential tempera-ture

(220)Same range as analog input 1

Return-pipe temper-ature.

PFU 3: Flow-pipe, return-pipe or differential tempera-ture

(215) “on”Pressure measur-ing in pump dis-charge port.

(215) “off”

PFU 4: Flow


(215) “off”

Pressure measur-ing in pump suction port. (Dry-running protection).

PFU 5: Level


(215) “off”


PFU 6: Open loop


(215) “off”


19

4.4.13 PFU 2000 Analog Input 3 ConfigurationThe PFU 2000 analog input 3 receives a setpoint influence signal in accordance with the setting in “influence” (display 217).

The following signals can be connected and evaluated:

• A digital signal (potential-free NO or NC contact).

• Analog signals:

– 0-10 V,– 0-20 mA, – 4-20 mA.


The default function of the PFU 2000 analog input 3 without a PMU 2000 is “extern” in % (linearly from 0% to 100%).

For further information, see section4.4.5 Setpoint Influences.

4.4.14 PFU 2000 Digital Input 4 ConfigurationThe PFU 2000 digital input 4 can be used for external control of the zone. Only one function per zone can be selected.

The default setting is “off”.

The following functions are possible (display 222):

• “off”Input 4 has no function.

• “remote on/off”When the PFU 2000 digital input 4 contact is open, all pumps are switched off.

• “ramp 2 pt” (two-point control of setpoint)When the PFU 2000 digital input 4 contact is closed, the set-point will drop linearly in accordance with the set “ramp time” (display 223).When the contact is opened, the setpoint will rise linearly in accordance with the set “ramp time” (display 223).The default setting is “setpoint act.”.

Fig. 23

• “ramp 3 pt” (three-point control of setpoint)The PFU 2000 input 2 is used for this function together with in-put 4. The function “ramp 3 pt” is not possible with control pa-rameters using the PFU 2000 input 2.When the PFU 2000 digital input 4 contact is closed, the set-point will drop linearly in accordance with the set “ramp time” (display 223).When the PFU 2000 input 2 contact is closed, the setpoint will rise linearly in accordance with the set “ramp time” (display 223).When the PFU 2000 input 2 and PFU 2000 digital input 4 con-tacts are opened, the setpoint will be kept constant.When both contacts are closed, the setpoint will drop linearly in accordance with the set “ramp time” (display 223).The default setting is “setpoint act.”.

Fig. 24

• “reduced op” (reduced operation)When the PFU 2000 digital input 4 contact is closed, the pumps which have not been set to reduced operation will be switched off, i.e. the system performance is reduced to the number of pumps set to reduced operation.Examples of application: Reduced power supply with an emer-gency power set. For further information, see section 4.3.8 Reduced Operation.

• “setpoint max1”When the PFU 2000 digital input 4 contact is closed, “setpoint max1” will be activated.

4.4.15 Ramp TimeThe ramp time is the time needed to change the setpoint factor from 0 to 1 and vice versa.

If the PFU 2000 digital input 4 has been set to “ramp 2 pt” or“ramp 3 pt” (display 222), the ramp time must be set (display 223).

The setting range is 1 to 99 minutes.

The default setting is 10 minutes.

Fig. 25

TM

00

500

4 4

894

Setp. act.

Ramp time Time

100%

Two-Point Control of SetpointSetp. act.

Ramp time Time

TM

00

500

5 4

894

TM

00 5

00

6 48

94

Setp. act.

Ramp time Time

100%

Three-Point Control of Setpoint

Time

Setp. act.

Ramp time

Setp. act.

Ramp time Time

Max

Ramp TimeSetp. act.

Max.

Ramp time Time

20

4.4.16 Maximum LimitThis setting defines the maximum limit at which the system is to indicate a fault.

The setting range is from 0 to the maximum value of the transmit-ter measuring range (display 228). If the value is set to the maxi-mum of the measuring range, no fault will be indicated.

For further information, see section 5.2.5 Maximum Limit of Actual Value.

Fig. 26

4.4.17 Minimum LimitThis setting defines the minimum limit at which the system is to indicate a fault.

Example of application: Elimination of operation in unintended operating points.

The setting range is from 0 to the maximum value of the transmit-ter measuring range (display 229). If the value is set to 0, no fault will be indicated.

The minimum limit is 0.

For further information, see section 5.2.6 Minimum Limit of Actual Value.

Fig. 27

4.4.18 Operation at Minimum Limit If this function is set to “on” (display 230), no pumps will be switched off at “min.limit operation”, but a fault is indicated.

If this function is set to “off” (display 230), the pump/pumps is/are switched off at “min.limit operation” and a fault is indicated.

The default setting is “on”.

TM

01 0

482

11

97T

M0

1 0

481

119

7

Maximum Limit

0

100%

Max. limit

Setpoint act.

Max. value from signaltransmitter

Min. value from signaltransmitter

Minimum Limit

0

100%

Setpoint act.

Min. limit

Max. value from signaltransmitter

Min. value from signaltransmitter

21

4.5 Operation of PMU 2000Fig. 28

It is possible to go through all menus and all settings, also during operation, without disturbing the system. Use this possibility to make yourself familiar with the PMU 2000 menus. However, the “Enter” button must not be pressed if unintentional settings have been made.

All settings are buffered, also if the electricity supply is switched off.

Explanation to the front cover operating buttons:

4.5.1 Status DisplayThe status display is the first display that appears when the PMU 2000 is switched on.

Fig. 29

If the PMU 2000 is not operated for 15 minutes, it will automati-cally return to this display.By pressing “Esc” repeatedly, you can always return to this dis-play.

The status display indicates the following:

[I] The pump is operating (1, 2).

[A] Fault indication on the pump (3). The fault can be identified in the fault indication menu.

[O] The pump is not operating (4).The cause can be found in the pump status menu.

[–] The pump is allocated to a zone, but it has not yet been con-nected to the PMU 2000 or the electricity supply to the pump was never switched on.

[ ] The pump has not been allocated to a zone (5, 6, 7, 8).

[M] The pump has been set to maximum performance.

A point between two pump numbers indicates that these pumps have been connected to a PCU 2000. The display shows that pumps 1, 2, 3 and 4 have been connected to a PCU 2000.

To find the units in the Delta Control 2000, see the wiring diagram and the mechanical layout.

TM

00 7

02

3 24

97

Status displays for all pumps connected.

Status displays for all zones.(Normally, the Delta Control 2000 will only comprise one zone).

Setting menus for all control parameters.

Setting of control parameter for zones/pumps.

Setting of control parameter for zones/pumps.

Start/stop of zones and pumps.

Jumps one level backwards.

Survey of fault indications.

Moves one display up in menu.

Moves one display down in menu.

– Jumps one level forwards.– Stores settings.– Resets fault indications.

PMU 2000 Front Cover

Pumpstatus

Zonestatus

Set

OnOff

Esc

Enter

100 1.2.3.4 5 6 7 8Status I I A O

22

23

4.6 Display OverviewsThe following shows the display overviews for the PMU 2000, includ-ing the basic menu and the display overviews for zone type PFU and the control parameters:

1. Differential pressure.

2. Differential temperature.

3. Flow-pipe, return-pipe or differential temperature.

4. Flow.

5. Level.

6. Open loop.

By pressing “Esc” repeatedly, you can always return to display 100.

111 Zone A 12 UPE 1 head

Zone A 12 UPE 2 head

Zone A 12 UPE 3 op.loop

Zone A 12PFU 1 diffpr.

Zone A 12PFU 2 tempdif

Zone A 12PFU 3 temp.

Zone A 12PFU 4 flow

Zone A 12PFU 5 level

Zone A 12PFU 6 op.loop.

Zone A 12PFU 7 press

Zone A 12PFU 8 press.

Basic Menu100 1.2.3.4 5 6 7 8

Status I I 0 A M - -

101 Configuration 12345678set to zone AAC

102 Configurationpresetting →

103 Configuration Monclock 11:07 h 21-07-94

104 Configurationalarm suppression on

105 Configurationpump comm. alarm on

106 Configuration PMUGRUNDFOS 00620194/9420

107 Configuration PCUGRUNDFOS 00610194/9420

108 Configuration PFUGRUNDFOS 00630194/9420

Configuration<<< End of menu >>>

TM

00

535

3 0

695

24

4.6.1 PFU 1: Differential Pressure

On

200 Set A setpoint max. 12.5 m

207 Set Aunit m

213 Set A clock program→

Set A setp. influence→

Set Azone name:

212 Set Astand-by pumps 0

226 Set Apump change on

208 Set Apump change at 00:05 h

209 Set Azone configuration →

211 Set A<<< End of menu >>>

201 Set A clock program : ->

Set A clock program <<< End of menu >>>

202 Set A setp. influenceprogressive infl off

Set A setp. influence<<< End of menu >>>

204 Set A system time 2.0 s

205 Set Amin. sequence 5 s

214 Set Acontrol function normal

219 Set A diffpr. 0-20mA1 0 m 25 m

217 Set Ainfluence off

222 Set Ainput 4 off

227 Set A 12------pump priority 11------

228 Set Amax. limit 25.0 m

229 Set Amin. limit 0.0 m

230 Set Amin.limit operation on

Set A<<< End of menu >>>

Setting MenuSet A 12345678PFU diffpr. 0 →

300 Zone A diffpr.switched to on

301 Pump 1 (not availabl)switched to on



Start/Stop Menu

Set

OnOff

TM

00 5

34

5 06

95

25

401 Zone Asetpoint act. 12.5 m →

403 Zone Aactual value 0.0 m

404 Zone Aspeed 0 %.max. 0

405 Zone Asetpoint max. 12.5 m

Zone Aclock program→

421 Zone Astand-by pumps 0

410 Zone Apump change on

411 Zone Apump change at 00:05 h

210 Zone Azone configuration →

Zone A<<< End of menu >>>

504 pump 1 (not availabl)maximum head 25.0 m

508 pump 1 (not availabl)running hours 0 h

pump 1 (not availabl)<<< End of menu >>>




402 Zone A setp. influencesetpoint max. 12.5 m

Zone A setp. influenceremote -> 12.5 m

Zone A setp. influence setpoint act. 12.5 m

Zone A setp. influence<<< End of menu >>>

406 Zone A clock program <<< End of menu >>>

408 Zone A system time 2.0 s

409 Zone Amin. sequence 5 s

412 Zone Acontrol function normal

416 Zone A diffpr. 0-20mA1 0 m 25 m

415 Zone Ainfluence off

419 Zone Ainput 4 off

422 Zone A 12------pump priority 11------

423 Zone Amax. limit 25.0 m

424 Zone Amin. limit 0.0 m

425 Zone Amin.limit operation on


Zone Status MenuZone A 12 PFU diffpr. →

500 Pump 1 in A(not availabl) →

500 Pump 2 in A(not availabl) →


600 Alarm 1

Alarm 2

ZonestatusZonestatus

Pump Status MenuPumpstatus

Fault Indication Menu

TM

00 5

345

06

95

26

4.6.2 PFU 2: Differential Temperature

On

200 Set A setpoint max. 20 K

213 Set Aunit K

Set A clock program→


212 Set Azone name:








202 Set A setp. influence<<< End of menu >>>



214 Set Acontrol function invers

219 Set A temp Tf 4-20 mA1 0 °C 150 °C

220 Set A temp Tr 4-20 mA2 0 °C 150 °C




228 Set Amax. limit 100 K

229 Set Amin. limit 0 K



Setting MenuSet A 12345678PFU tempdif →

300 Zone A tempdifswitched to on




Start/Stop Menu

Set

OnOff

TM

00 5

34

6 06

95

27

401 Zone Asetpoint act. 20 K →

403 Zone Aactual value 0 K

433 Zone ATemp Tf - 0 °C

434 Zone ATemp Tr - 0 °C


405 Zone Asetpoint max. 20 K











402 Zone A setp. influencesetpoint max. 50 °C

Zone A setp. influenceremote -> 50 °C

Zone A setp. influence setpoint act. 50 °C





412 Zone Acontrol function invers

416 Zone A temp Tf 4-20 mA1 0 °C 150 °C

417 Zone A temp Tr 4-20 mA2 0 °C 150 °C




423 Zone Amax. limit 100 K

424 Zone Amin. limit 0 K



Zone Status MenuZone A 12 PFU tempdif →

500 Pump 1 in A (not availabl) →



600 Alarm 1

Alarm 2




TM

00 5

346

06

95

28

4.6.3 PFU 3: Flow-Pipe or Return-Pipe Temperature

On

200 Set A setpoint max. 50 °C

213 Set Aunit °C



212 Set Azone name:











206 Set Ap - band 10 K


219 Set A temp. 4-20 mA1 0 °C 150 °C

215 Set Apressure measuring off




228 Set Amax. limit 100 °C

229 Set Amin. limit 0 °C



Setting MenuSet A 12345678PFU temp. →

300 Zone A temp.switched to on




Start/Stop Menu

Set

OnOff

TM

00 5

34

7 06

95

29

401 Zone Asetpoint act. 20 °C →

403 Zone Aactual value 0 °C


405 Zone Asetpoint max. 50 °C











402 Zone A setp. influencesetpoint max. 50 °C

Zone A setp. influenceremote -> 50 °C

Zone A setp. influence setpoint act. 50 °C





432 Zone Ap - band 10 K


416 Zone A temp. 4-20 mA1 0 °C 150 °C

413 Zone Apressure measuring off




423 Zone Amax. limit 100 °C

424 Zone Amin. limit 0 °C



Zone Status MenuZone A 12 PFU temp. →




600 Alarm 1

Alarm 2


Pump Status Menu

Pumpstatus


TM

00 5

347

06

95

30

4.6.4 PFU 4: Flow

On

200 Set A setpoint max. 50 m3/h

213 Set Aunit m3/h



212 Set Azone name:












219 Set A flow 0-20mA1 0 m3/h 100 m3/h





228 Set Amax. limit 100 m3/h

229 Set Amin. limit 0.0 m3/h



Setting MenuSet A 12345678PFU flow →

300 Zone A flowswitched to on




Start/Stop Menu

Set

OnOff

TM

00 5

34

8 06

95

31

401 Zone Asetpoint act. 50 m3/h →

403 Zone Aactual value 0 m3/h









504 pump 1 (not availabl)maximum head 50 m3/h



504 pump 2 (not availabl)maximum head 50 m3/h



402 Zone A setp. influencesetpoint max. 50 m3/h

Zone A setp. influenceremote -> 50 m3/h

Zone A setp. influence setpoint act. 50 m3/h






416 Zone A flow 0-20mA1 0 m3/h 10 m3/h





423 Zone Amax. limit 100 m3/h

424 Zone Amin. limit 0 m3/h



Zone Status MenuZone A 12 PFU flow →




600 Alarm 1

Alarm 2




TM

00 5

348

06

95

32

4.6.5 PFU 5: Level

On

200 Set A setpoint max. 10.0 m

213 Set Aunit m



212 Set Azone name:












219 Set A level 0-20mA1 0 m 10 m





228 Set Amax. limit 10.0 m

229 Set Amin. limit 0.0 m



Setting MenuSet A 12345678PFU level →

300 Zone A levelswitched to on




Start/Stop Menu

Set

OnOff

TM

00 5

34

9 06

95

33

401 Zone Asetpoint act. 10.5 m →

403 Zone Aactual value 0.0 m















402 Zone A setp. influencesetpoint max. 10 m

Zone A setp. influenceremote -> 10 m

Zone A setp. influence setpoint act. 10 m






416 Zone A level 0-20mA1 0 m 10 m





423 Zone Amax. limit 10.0 m




Zone Status MenuZone A 12 PFU level →

500 Pump 1 in A(not availabl)→

500 Pump 2 in A(not availabl)→


600 Alarm 1

Alarm 2


Pump Status Menu

Pumpstatus


TM

00 5

349

06

95

34

4.6.6 PFU 6: Open Loop

On

200 Set A setpoint max. 100 %

213 Set Aunit %



212 Set Azone name:





Set Apump 1 →











228 Set Amax. limit 100 %

229 Set Amin. limit 0.0 %



Setting MenuSet A 12345678PFU op.loop →

300 Zone A op.loopswitched to on




Start/Stop Menu

Set

OnOff

TM

00 5

35

0 06

95

35

401 Zone Asetpoint act. 100 % →


405 Zone Asetpoint max. 100 %











402 Zone A setp. influencesetpoint max. 100 %

Zone A setp. influenceremote -> 100 %

Zone A setp. influence setpoint act. 100 %










423 Zone Amax. limit 100 %




Zone Status MenuZone A 12 PFU op.loop →




600 Alarm 1

Alarm 2


Pump Status Menu

Pumpstatus


TM

00 5

350

06

95

36

5. Monitoring FunctionsThe Delta Control 2000 offers a number of monitoring functions ensuring that the system will stop in case of faults. The controller will indicate possible faults in the following way:

5.1 Fault IndicationsSystems without PMU 2000:

• Red indicator light in the PFU 2000 front cover is on.

• Fault signal relay in the PFU 2000 is activated.

Systems with PMU 2000:

• Red indicator light in the PMU 2000 front cover is on.

• Cause of fault can be found in the PMU 2000 fault indication menu.

• Fault signal relay in the PFU 2000 and PMU 2000 are acti-vated.

In the PMU 2000, the last 10 fault indications are stored in an agenda by time, occurrence and correction. If more than 10 faults occur, the actual faults and the latest non-actual faults will be kept in the fault agenda. Non-actual faults remain stored until they are reset on the PMU 2000. This does not apply to the faults exceeding 10.

For further information, see section6. Operating and Fault Indications.

If a PCU 2000 has been connected to the system, the fault signal relay belonging to the faulty pump will be activated.

5.1.1 Resetting of Fault IndicationA fault indication can be reset when the cause of the fault has dis-appeared.

Manual resetting (restarting of PFU 2000):A manual reset followed by an immediate restart is carried out in one of the following ways:

• Press the “Reset” button on the PFU 2000.

• Turn the function selector in the PFU 2000 to STOP.

• Select the PMU 2000 fault indication menu and press “Enter”, when the fault indication appears in the display.

In the PFU 2000, manual resetting is only possible every 5th sec-ond.

Automatic resetting (restarting of PFU 2000):When the actual fault has been corrected, the system will attempt to restart automatically at the following intervals:

1st time after 15 secs.,

2nd time after 5 minutes,

3rd - 4th time at 30 minute intervals,

5th - ? time once every 24 hours until the fault has been corrected.

The number of stored restarting attempts is reduced to zero by manual resetting and a restarting attempt can be made immedi-ately.

Otherwise, the number of stored restarting attempts will be re-duced by one every three hours after the alarm disappears. After a certain time without faults, the first automatic restarting attempt can be made 15 secs. after the fault has been corrected.

The fault conditions are described in the following sections.

5.2 Fault Causes

5.2.1 Communication FaultsThe PMU 2000 display reads “communicat”.

If a fault occurs in the communication via the GRUNDFOS BUS to the units connected, the fault indication “communicat” will be gen-erated and sent to the BUS.

Possible causes of communication faults:

• The electricity supply to the unit is switched off.

• The BUS connection to the unit has been disconnected.

• The communication message from the unit cannot be inter-preted.

• The same pump number has been allocated to two or more pumps of the same type.

The communication fault will be suppressed (not registered) if the electricity supply is interrupted for less than 20 secs. The fault in-dication will appear (be registered) if the electricity supply is inter-rupted for more than 1 minute.

5.2.2 Motor OvertemperatureThe PMU 2000 display reads “motor temp”.

Mains-operated motors with a Ie up to 25 A are protected by means of a motor starter.

Mains-operated motors with a Ie between 25 A and 63 A are pro-tected by means of overload relay and circuit breaker.

Mains-operated motors with a Ie above 63 A are protected by means of overload relay and fuses.

Motors incorporating thermistor or winding protection switch as additional protection generate a fault if the motor temperature is exceeded. The fault indication will appear 4 secs. after tripping. The pump will be switched off.

This applies to MGE motors:

MGE motors are protected by an integrated motor protection.

If the automatic circuit breaker in the electricity supply trips out, the motor fault relay will be in fault position and generate a motor temperature fault.

5.2.3 Frequency ConverterApplies only to Delta Control 2000 F:

The PMU 2000 display reads “speed cont”.

A possible fault in the frequency converter will be registered at the PFU 2000 terminal 5. In case of a frequency converter fault, all pumps will change over to on/off mode.

After power-up, the alarm will be suppressed for 10 secs.

37

5.2.4 Transmitter FaultThe PMU 2000 display reads “fault zone X sensor AI X”.

If a transmitter fault is registered, the fault indication “fault zone X sensor AI X” appears.

Transmitters with current output 0-20 mA or 4-20 mA are moni-tored according to the following signal limits:

Sensor AI 1 to sensor AI 3 fault

• 4-20 mA AI X < 2 mA or AI X > 22.5 mA for 5 secs.

• 0-20 mA AI X > 22.5 mA for 5 secs.

Transmitter faults disappear if the transmitter signal lies within the fault limits for 5 secs.

Transmitters with 0-10 V output signal cannot be monitored.

5.2.5 Maximum Limit of Actual ValueThe PMU 2000 display reads “max. limit”.

If the actual value is higher than the set value of maximum limit (display 228) for more than 0.5 secs., the fault indication “max. limit” appears.

When the actual value has been lower than the set maximum limit for 5 secs., the actual fault condition will disappear.

For further information, see section4.4.16 Maximum Limit.

5.2.6 Minimum Limit of Actual ValueThe PMU 2000 display reads “min. limit”.

If the actual value is lower than the set value of minimum limit (display 229) for more than 6 secs. + (2 x system time), the fault indication “min. limit” appears.

When the actual value has been higher than the set minimum limit for 5 secs., the actual fault condition will disappear.

For further information, see section4.4.17 Minimum Limit.

5.2.7 Voltage DropThe PMU 2000 display reads “mains drop”.

The PMU 2000 is monitored for voltage drops. Voltage drops which persist for more than one minute will be indicated as faults.

After restarting of the PMU 2000, the time when the voltage drop occurred and the time when it disappeared are displayed and stored. If the voltage drop influences a PFU 2000 only, it is dis-played in the PMU 2000 as a communication fault.

38

6. Operating and Fault IndicationsThe two indicator lights in the front cover of PFU 2000 and PMU 2000 indicate pump operation (green) and/or fault (red).

The function of the indicator lights and the operating and fault sig-nal outputs appears from the table below.

The fault signal relay of the PMU 2000 will be deactivated for 15 minutes

• if any button has been pressed during the actual fault condi-tion and

• if “alarm suppression” “on” is selected (display 104).

7. Fault Finding Chart

Indicator Lights Outputs PFU 2000 Outputs PMU 2000

DescriptionFault(red)

Operation(green)

Fault Operation Fault Operation

Off OffElectricity supply switched off or supply failure.

OffPermanently

onAt least one pump in each zone is in operation.

Off Flashing

All pumps in at least one zone have been stopped:· via external on/off switch or

via function selector inPFU 2000 (pos. STOP),

· via PFU 2000/PMU 2000.

Permanently on

OffAt least one pump is stopped due to fault.

Permanently on

Permanently on

At least one pump is or has been stopped due to fault.At least one pump in each zone is in operation.

Permanently on

Flashing

All pumps in at least one zone have been stopped:· via external on/off switch or

via function selector inPFU 2000 (pos. STOP),

· via PFU 2000/PMU 2000.At least one pump is or has been stopped due to fault.

NCNOC NCNOC NCNOC NCNOC

C NO NC C NO NC NCNOC C NO NC

C NO NC NCNOC NCNOC NCNOC

NCNOC NCNOC C NO NC NCNOC

NCNOC C NO NC C NO NC C NO NC

NCNOC NCNOC C NO NC NCNOC

Before making any connections in pumps, terminal boxes or the controller, the electricity supply must be switched off.

Fault Cause Remedy

1. Motor does not run when started.

a) Electricity supply disconnected. Connect the electricity supply.

b) Automatic circuit breakers cut out. Correct the fault and cut in the automatic circuit break-ers.

c) Motor protection activated. Correct the fault and reactivate the motor protection.

d) Fuse in the PFU 2000 defective. Replace the fuse.

e) Motor defective. Repair/replace the motor.

2. Motor starts, but stops im-mediately afterwards.

a) Fault in transmitter. Replace the transmitter.

b) Incorrect setting of analog input 1. Check and correct setting.

3. Pumps are running, but deliver no water.

c) Motors running with the wrongdirection of rotation.

Change the direction of rotation.

39

8. Configuration before Start-UpThe Delta Control 2000 incorporates a factory-set PFU 2000. In most cases, the factory setting will be sufficient, but before start-up, the setting of the DIP switches in the PFU 2000 must be checked and changed, if required, so that they match the actual conditions.

The settings of DIP 1 (only contacts 4 and 6) and DIP 2 must be checked and changed, if required. The other contacts of DIP 1 have been factory-set. These settings should not be changed.

Note: The electricity supply must be switched off before the switch settings are made.

Fig. 30

8.1 PFU 2000 DIP Switch Settings

TM

00 5

21

6 02

96

ON

12

34

56

78

9

DIP 1 DIP 2

EP

RO

M

ON

1 2 3 4

Position of DIP 1 and DIP 2 in PFU 2000

The following settings are application-dependent and must therefore be made by the customer:

DIP 1

1 2 3 4 5 6 7 8 9

Analog input 2– 0-20 mA, 4-20 mA, 0-10 V, NO contact.– 20-0 mA, 20-4 mA, 10-0 V, NC contact.

OFFON

Friction loss compensation– No friction loss compensation.– 10% friction loss compensation.

OFFON

DIP 2

1 2 3 4

Analog input 1– 4-20 mA, 0-20 mA.– 0-10 V.

ONOFF

Analog input 2– 4-20 mA, 0-20 mA.– 0-10 V.– Potential-free changeover contact.

ONOFFOFF

OFFOFFON

Analog input 3– 4-20 mA, 0-20 mA.– 0-10 V.

ONOFF

Factory settings:

DIP 1

1 2 3 4 5 6 7 8 9

Permanent setting. OFF OFF OFF

Systems without PMU 2000.Systems with PMU 2000.

ONOFF

Permanent setting. OFF

Number of pumps controlled: 1 OFF OFF

Number of pumps controlled: 2 OFF ON

Number of pumps controlled: 3 ON OFF

Number of pumps controlled: 4 ON ON

40

8.2 Frequency Converter SettingsApplies only to Delta Control 2000 F:

The frequency converter must be set to the following values:

The VLT 2800 will display the menu numbers, but no text.

8.3 Configuration of MGE MotorsThe following settings must be made in menu OPERATION and menu INSTALLATION by means of the GRUNDFOS remote con-trol R100:

Menu OPERATION

Set the setpoint to 100%.

Menu INSTALLATION

Set the control mode to Uncontrolled.

Set the external setpoint to 0-10 V.

Set the signal relay to Ready.

Set the buttons on the pump to Not active.

Set the operating range to Min. 12% and Max. 100%.

MenuFunction SettingVLT

2800VLT6000

001 001 LANGUAGE ENGLISH

101VT CHARACT.

Variable torque medium

101MULTIPLE MOTORS

102 102 MOTOR POWER Acc. to motor data

103 103 MOTOR VOLTAGE Acc. to motor data

104 104 MOTOR FREQUENCY Acc. to motor data

105 105 MOTOR CURRENT Acc. to motor data

106 106 MOTOR NOM. SPEED Acc. to motor data

201 201 MIN. FREQUENCY 0 Hz

202 202 MAX. FREQUENCY 51 Hz - 53 Hz

41

8.4 Electrical Data 9. Maintenance

9.1 Maintenance of Delta Control 2000The Delta Control 2000 must be kept clean and dry. The filters of the Delta Control 2000 F must be cleaned regularly.

Voltage supply: See the wiring diagram supplied with the controller.

Control voltage: See the wiring diagram supplied with the controller.

Voltage to signal transmitters: 24 VDC / max. 70 mA.

Analog input 1: Measured value in the system0-10 V, 0-20 mA, 4-20 mA.

Analog input 2: Temperature or pressure measuring0-10 V, 0-20 mA, 4-20 mA.

Analog input 3: Setpoint influencedigital signal, 0-10 V, 0-20 mA, 4-20 mA.

Digital input 4: Remote on/off and other functionsmax. 12 V / 12 mA.

Fault signal relay: Potential-free changeover contactmax. 250 V / 0.5 A.

Operating signal relay: Potential-free changeover contact.max. 250 V / 0.5 A.

Enclosure class: Standard IP 54.

Ambient temperature: 0°C to +40°C.

Sound pressure level: Lower than 70 dB(A).

EMC: EN 61 000-6-2 and EN 61 000-6-3.

The controller fulfils the following:

VDE 0660, section 500 / EN 60 439,VDE 100, EN 60 204-1.

42

10. GlossaryActual value

Actual value is the measured value.

Analog input

Analog signals from transmitters can be connected to the analog inputs of PFU 2000 or PCU 2000.

BUS

The GRUNDFOS BUS enables communication among the units connected to the GRUNDFOS Pump Management System 2000. The communication (RS-485) is performed according to the GRUNDFOS BUS protocol.

Closed-loop control

Closed loop is the designation of a control system with a feed-back signal from a transmitter.

Control

The controller compares a signal from an external transmitter (ac-tual value) with a setpoint.

The setpoint is an indication of a required state. The transmitter constantly registers whether this required state is maintained. On the basis of the above-mentioned comparison, the controller con-tinuously adapts pump speed so as to automatically make system performance result in the required state.

Default value

The default value is the factory-set value/parameter, i.e. the value/parameter which will appear if no other value is set. This is for instance the case in connection with presettings.

Differential pressure

Differential pressure is the pressure difference between two measuring points, e.g. between suction and discharge ports of the pump.


Differential temperature is the temperature difference between two measuring points, e.g. flow and return pipes.

Digital input

Digital signals from transmitters can be connected to the digital inputs of the PFU 2000.

Display overview

A display overview is a total overview of the displays which may appear in a menu with a given presetting.

Flow

Flow is the quantity of pumped liquid which passes through pumps/a zone within a certain period, e.g. indicated in [m³/h].

“Local” operation

When the pumps/zone are not controlled via a PMU 2000 but ac-cording to the settings made via the PFU 2000, the operating mode is referred to as “local”.

“Max.” operation

When the pumps/zone are controlled via a PMU 2000 or via the PFU 2000, it is possible to set the pumps/zone to “Max.” opera-tion. The pumps will run at maximum speed (irrespective of exter-nal signals).

Menu

Menu is the designation of one of six different groups of displays in the PMU 2000. Settings and readings are made in the menus, which consist of a number of displays.

Open-loop control

Open loop is the designation of a control system without feed-back signal from a transmitter.

PCU 2000

The Pump Communication Unit 2000 is used for communication between the GRUNDFOS BUS and external control and monitor-ing systems.

PFU 2000

The Pump Functional Unit 2000 is used to control and monitor pumping systems.

PMU 2000

The Pump Management Unit 2000 is used to monitor and opti-mize pumping systems.

Progressive pressure

Progressive pressure means that the pressure in the system rises/falls proportionally to the flow (friction loss compensation).

Proportional pressure

See “Progressive pressure”.

Zone

A zone is a closed hydraulic system in which all pumps have common suction and discharge pipes.

Ret til ændringer forbeholdes.Subject to alterations.

DenmarkGRUNDFOS DK A/S Poul Due Jensens Vej 7A DK-8850 Bjerringbro Tlf.: +45-87 50 50 50 Telefax: +45-87 50 51 51

ArgentinaBombas GRUNDFOS de Argentina S.A.Ruta Panamericana km. 37.500 Lote 34A1619 - GarinPcia. de Buenos AiresPhone: +54-3327 414 444Telefax: +54-3327 411 111

AustraliaGRUNDFOS Pumps Pty. Ltd. P.O. Box 2040 Regency Park South Australia 5942 Phone: +61-8-8461-4611 Telefax: +61-8-8340 0155

AustriaGRUNDFOS Pumpen Vertrieb Ges.m.b.H.Grundfosstraße 2 A-5082 Grödig/Salzburg Tel.: +43-6246-883-0 Telefax: +43-6246-883-30

BelgiumN.V. GRUNDFOS Bellux S.A. Boomsesteenweg 81-83 B-2630 Aartselaar Tél.: +32-3-870 7300 Télécopie: +32-3-870 7301

BrazilGRUNDFOS do Brasil Ltda.Rua Tomazina 106CEP 83325 - 040Pinhais - PRPhone: +55-41 668 3555Telefax: +55-41 668 3554

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

ChinaGRUNDFOS Pumps (Shanghai) Co. Ltd.22 Floor, Xin Hua Lian Building755-775 Huai Hai Rd, (M)Shanghai 200020PRCPhone: +86-512-67 61 11 80Telefax: +86-512-67 61 81 67

Czech RepublicGRUNDFOS s.r.o.Cajkovského 21779 00 OlomoucPhone: +420-585-716 111Telefax: +420-585-438 906

FinlandOY GRUNDFOS Pumput AB Mestarintie 11 PiispankyläFIN-01730 Vantaa (Helsinki) Phone: +358-9 878 9150 Telefax: +358-9 878 91550

FrancePompes GRUNDFOS Distribution S.A. Parc d’Activités de Chesnes 57, rue de Malacombe F-38290 St. Quentin Fallavier (Lyon) Tél.: +33-4 74 82 15 15 Télécopie: +33-4 74 94 10 51

GermanyGRUNDFOS GMBHSchlüterstr. 3340699 ErkrathTel.: +49-(0) 211 929 69-0 Telefax: +49-(0) 211 929 69-3799e-mail: [email protected] in Deutschland:e-mail: [email protected]

GreeceGRUNDFOS Hellas A.E.B.E. 20th km. Athinon-Markopoulou Av. P.O. Box 71 GR-19002 Peania Phone: +0030-210-66 83 400 Telefax: +0030-210-66 46 273

Hong KongGRUNDFOS Pumps (Hong Kong) Ltd. Unit 1, Ground floor Siu Wai Industrial Centre 29-33 Wing Hong Street & 68 King Lam Street, Cheung Sha Wan Kowloon Phone: +852-27861706/27861741 Telefax: +852-27858664

HungaryGRUNDFOS Hungária Kft.Park u. 8H-2045 Törökbalint, Phone: +36-34 520 100Telefax: +36-34 520 200

IndiaGRUNDFOS Pumps India Private LimitedFlat A, Ground Floor61/62 Chamiers AptmtChamiers RoadChennai 600 028Phone: +91-44 432 3487Telefax: +91-44 432 3489

IndonesiaPT GRUNDFOS Pompa Jl. Rawa Sumur III, Blok III / CC-1 Kawasan Industri, Pulogadung Jakarta 13930 Phone: +62-21-460 6909 Telefax: +62-21-460 6910/460 6901

IrelandGRUNDFOS (Ireland) Ltd. Unit 34, Stillorgan Industrial Park Blackrock County Dublin Phone: +353-1-2954926 Telefax: +353-1-2954739

ItalyGRUNDFOS Pompe Italia S.r.l. Via Gran Sasso 4I-20060 Truccazzano (Milano)Tel.: +39-02-95838112 Telefax: +39-02-95309290/95838461

JapanGRUNDFOS Pumps K.K.1-2-3, Shin MiyakodaHamamatsu CityShizuoka pref. 431-21Phone: +81-53-428 4760Telefax: +81-53-484 1014

KoreaGRUNDFOS Pumps Korea Ltd.6th Floor, Aju Building 679-5 Yeoksam-dong, Kangnam-ku, 135-916Seoul Korea Phone: +82-2-5317 600Telefax: +82-2-5633 725

MalaysiaGRUNDFOS Pumps Sdn. Bhd.7 Jalan Peguam U1/25Glenmarie Industrial Park40150 Shah AlamSelangor Phone: +60-3-5569 2922Telefax: +60-3-5569 2866

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

NetherlandsGRUNDFOS Nederland B.V. Postbus 104 NL-1380 AC Weesp Tel.: +31-294-492 211 Telefax: +31-294-492244/492299

New ZealandGRUNDFOS Pumps NZ Ltd.17 Beatrice Tinsley CrescentNorth Harbour Industrial EstateAlbany, AucklandPhone: +64-9-415 3240Telefax: +64-9-415 3250

NorwayGRUNDFOS Pumper A/S Strømsveien 344 Postboks 235, Leirdal N-1011 Oslo Tlf.: +47-22 90 47 00 Telefax: +47-22 32 21 50

PolandGRUNDFOS Pompy Sp. z o.o. ul. Klonowa 23Baranowo k. PoznaniaPL-62-081 PrzezmierowoPhone: +48-61-650 13 00Telefax: +48-61-650 13 50

PortugalBombas GRUNDFOS Portugal, S.A. Rua Calvet de Magalhães, 241Apartado 1079P-2770-153 Paço de ArcosTel.: +351-21-440 76 00Telefax: +351-21-440 76 90

RussiaOOO GRUNDFOSShkolnaya 39RUS-109544 MoscowPhone: +7-095 564 88 00, +7-095 737 30 00Telefax: +7-095 564 88 11, +7-095 737 75 36e-mail: [email protected]

SingaporeGRUNDFOS (Singapore) Pte. Ltd. 24 Tuas West Road Jurong Town Singapore 638381 Phone: +65-6865 1222 Telefax: +65-6861 8402

SpainBombas GRUNDFOS España S.A. Camino de la Fuentecilla, s/n E-28110 Algete (Madrid) Tel.: +34-91-848 8800 Telefax: +34-91-628 0465

SwedenGRUNDFOS AB Box 63, Angeredsvinkeln 9 S-424 22 Angered Tel.: +46-771-32 23 00 Telefax: +46-31 331 94 60

SwitzerlandGRUNDFOS Pumpen AG Bruggacherstrasse 10 CH-8117 Fällanden/ZH Tel.: +41-1-806 8111 Telefax: +41-1-806 8115

TaiwanGRUNDFOS Pumps (Taiwan) Ltd. 14, Min-Yu Road Tunglo Industrial Park Tunglo, Miao-Li County Taiwan, R.O.C. Phone: +886-37-98 05 57Telefax: +886-37-98 05 70

ThailandGRUNDFOS (Thailand) Ltd. 947/168 Moo 12, Bangna-Trad Rd., K.M. 3,Bangna, PhrakanongBangkok 10260 Phone: +66-2-744 1785 ... 91Telefax: +66-2-744 1775 ... 6

TurkeyGRUNDFOS POMPA SAN. ve TIC. LTD. STIBulgurlu Caddesi no. 32 TR-81190 Üsküdar IstanbulPhone: +90 - 216-4280 306Telefax: +90 - 216-3279 988

United Arab EmiratesGRUNDFOS Gulf DistributionP.O. Box 16768Jebel Ali Free ZoneDubaiPhone: +971-4- 8815 166Telefax: +971-4-8815 136

United KingdomGRUNDFOS Pumps Ltd. Grovebury Road Leighton Buzzard/Beds. LU7 8TL Phone: +44-1525-850000 Telefax: +44-1525-850011

U.S.A.GRUNDFOS Pumps Corporation 17100 West 118th TerraceOlathe, Kansas 66061Phone: +1-913-227-3400 Telefax: +1-913-227-3500

Addresses revised 15.04.2003

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