PFU 2000 - Electrical relay Grundfos - Free user manual and instructions

USER MANUAL PFU 2000 Grundfos

Installation and operating instructions

Page 4

Before removing the terminal box modules, these Fitting Instructions should be studied carefully. The installation and operation should also be in accordance with local regulations and accepted codes of good practice.

Note: Pumps with modules must not be connected to a frequency converter.

The set includes:

• 2 relay modules with screws and screwdriver.
• 2 screwed cable entries.
  1 intermediate cable.
• 2 wiring diagrams for the terminal box covers.

When fitted with relay modules, the twin-head pump can be connected directly to a mains switch as it will be protected by the built-in overload protection at all three speeds.

The relay modules incorporate two indicator lights, see fig. 1, and a signal output in the terminal block.

2. Signal output

By means of a selector switch, see fig. 1, the signal output can be set to activation during:

Operation: The output is activated when the pump is operating.

Fault: The output is activated in case of fault.

Alternating operation: Use this setting when the pumps are to operate alternately as duty and standby pump.

The function of the signal output is shown in the table in section 6. Indicator lights and signal output.

3. Indicator lights

The relay modules have a green and a red indicator light. The function of the indicator lights is shown in the table in section 6. Indicator lights and signal output.

4. Operating modes of twin-head pumps

Three operating modes are possible:

1. Alternating operation. The pumps operate alternately as duty and standby pump.
2. Standby operation. One pump operates constantly as duty pump and the other constantly as standby pump.
3. Single-pump operation. The pumps operate independently of each other, possibly with external operating or fault indication.

5. Intermediate cable

In alternating operation and standby operation, the terminal blocks of the relay modules must be connected via the 4-core cable supplied. The cable is led into each of the terminal boxes by means of the screwed cable entries, see fig. 2.

Fig. 1
TM0092334596TM0092364596

Fig. 2
TM0092434101

6. Indicator lights and signal output 7. Replacement

Indicator lights		Signal output activated during		Description
Green Red		Operation	Fault
Off Off		NCKOC3	NCKOC3	The pump has been stopped. The elec-tricity supply has been switched off or phase missing.
On Off		NCKOC3	NCKOC3	The pump is operat-ing.
On On		NCKOC3	NCKOC3	Three-phase pumps only:The pump is operat-ing, but the direction of rotation is wrong.
Off On		123NCKOC	123NCKOC	The pump has been cut out by the thermal overload switch.
Flashes Off		NCKOC3	NCKOC3	The pump has been stopped by an external on/off switch.
Flashes On		NCKOC3	NCKOC3	The pump is or has been cut out by the thermal overload switch and the externall on/off switch is switched off.

Before removing the terminal box covers, make sure that the electricity supply has been switched off and that it cannot be accidentally switched on.

1. Switch off the electricity supply to the pump by means of the external mains switch. The green indicator lights on the terminal boxes must be off.
2. Remove the terminal box covers.
3. Remove all wires from the terminal blocks.
4. Replace the existing modules in the terminal boxes by the new ones, see fig. 3. For removal/fitting of the three screws shown, use the screwdriver supplied with the modules.

GB

Fig. 3

TM00 9590 4996TM01 0156 0697

1. Replace the wiring diagrams in the terminal box covers by the diagrams supplied with the modules, see fig. 4.

Fig. 4

1. Connect the terminal blocks and set the selector switch according to the following table which refers to the diagrams at the end of these instructions.

Single-pump operation (the pumps are operating independently of each other)
With operating indication Fig. A
With fault indication Fig. B

Alternating operation or standby operation (use the intermediate cable supplied, see fig. 2)
Alternating Operation Fig. C
Standby operation with pump 1 as duty pump and pump 2 as standby pump. Note: The selector switch must not be set to alternating operation.	Fig. D
Standby operation with pump 2 as duty pump and pump 1 as standby pump. Note: The selector switch must not be set to alternating operation.	Fig. E
Fault or operating indication for twin-head pumps in alternating operation: If the signal output is to be used for fault or operating indication, an intermediate relay must be used. Figure F shows a single-phase pump in alternating operation with external fault indication if pump 2 or both pumps are faulty.	Fig. F
Fault or operating indication for twin-head pumps in standby operation: · If the signal output of the duty pump is to be used for fault or operating indication, an intermediate relay must be used. · If the signal output of the standby pump is to be used for fault or operating indication, proceed as shown in fig. A or B.

1. Electrical data

Input for start/stop (terminals 7 and 8)	External potential-free contact. Maximum load: 250 V, 1.5 mA. Minimum load: \( {100}\mathrm{\;V},{0.5}\mathrm{\;{mA}} \) .
Output for operating or fault indication (terminals 1 to 3)	Internal potential-free changeover contact. Maximum load: 250 V, 2 A, AC. Minimum load: \( 5\mathrm{\;V},1\mathrm{\;{mA}},\mathrm{{DC}} \) .

1. In the case of alternating operation: Make a functional test as described in section 9. Functional test in the case of alternating operation.
2. Fit the terminal box covers.
3. Switch on the electricity supply.

9. Functional test in the case of alternating operation

Note: Before beginning the functional test, the pump must be installed and be ready for operation.

To check whether the intermediate cable is connected correctly, proceed as described in the following table. The test is carried out in two steps, each ending with a check.

Step 1
1	Both pumps: Check that the electricity supply has been switched off.
2	Pump 1: Set the selector switch for the signal output to alternating operation. Pump 2: Set the selector switch for the signal output to fault indication.
3 Both pumps: Remove the speed switch.
4 Both pumps: Switch on the electricity supply.
Check	Pump 1: • The pump is not operating. • The green indicator light is off. • The red indicator light is on.	Pump 2: • The pump is not operating. • The green indicator light is off. • The red indicator light is on.
Step 2 (if the above check is OK)
1 Both pumps: Switch off the electricity supply.
2 Both pumps: Fit the speed switch.
3 Both pumps: Switch on the electricity supply.
Check	The twin-head pump is running alternating operation with pump changeover every 24 hours. The pumps do not start in a specific order when the electricity supply is switched on. Pump 1 (pump 2): • The pump is operating. • The green indicator light is on. • The red indicator light is off.	Pump 2 (pump 1): • The pump is not operating. • The green indicator light is flashing. • The red indicator light is off.

10. Disposal

Disposal of this product or parts of it must be carried out according to the following guidelines:

1. Use the local public or private waste collection service.
2. In case such waste collection service does not exist or cannot handle the materials used in the product, please deliver the product or any hazardous materials from it to your nearest GRUND-FOS company or service workshop.

Subject to alterations..

Ynoketai eTporonouoeic.

22 Floor, Xin Hua Lian Building

755-775 Huai Hai Rd. (M)

Shanghai 200020

PRC

Phone:[phone]

Telefax:[phone]

Czech Republic

GRUNDEOS s.r.o.

Caikovského 21

779.00 Olomouc

Phone: [phone]

Telefax:[phone]

Finland

OY GRUNDFOS Pumput AB

Mestarintie 11

Piispankylä

FIN-01730 Vantaa (Helsinki)

Phone: [phone]

Telefax: [phone]

France

Pompes GRUNDEOS Distribution

S.A.

Unit 1. Ground floor

Siu Wai Industrial Centre

29-33 Wing Hong Street &

68 King Lam Street, Cheung Sha

Wan

Kowloon

Phone:[phone]

Telefax:[phone]

Hungary

GRUNDFOS Hungaria Kft.

Park u.8

H-2045 Torokbalint.

Phone: [phone]

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India

GRIUNDEOSBumpsonIndiaPrivate

Limited

Flat A. Ground Floor

61/62 Chamiers Aptmt

Chamiers Road

Chennai 6

Phone:[phone]

Telefax: [phone]

Indonesia

PT GRUNDFOS Pompa

JI. Rawa Sumur III, Blok III / CC-1

Kawasan Industri, Pulogadung

Jakarta 13930

Phone:[phone]

Telefax:[phone]/460

6901

.

Ireland CUNDP205 (Irrolant) 1+4

Unit 34 Stillorgan Industrial Park

Blackrock

County D

Phone:[phone]

Tel:[phone]

1. CiteX: [phone]

Italy

GRUNDEOS Pompe Italia S.r.l.

Via Gran Sasso 4

1-2-3, Shin Miyakoda

Hamamatsu City

Shizuoka pref. 431-21

Phone: [phone]

Telefax:[phone]

Korea

GRUNDFOSPumps Korea Ltd.

2nd FL, Dong Shin Building

994-3 Daechi-dong, Kangnam-Ku

Seoul 135-280

Phone:[phone]

Telefax:[phone]

Molvin

MUNIDSYU GRIUNDEOS PUMPO Sdn. Pte. Ltd.

2.1.1.1.1.3.1.2.1.3.4.1.5.1.6.1.7.1.8.1.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.49.50.51.52.53.54.55.56.57.58.59.60.61.62.63.64.65.66.67.68.69.70.71.72.73.74.75.76.77.78.79.80.81.82.83.84.85.86.87.88.89.90.91.92.93.94.95.96.97.98.99.100

Glenomaia Industrial

Grennane Industrial Park 40156-6cbh Alam

40157ShamSham

Selangor

Flone: [phone]

Telefax:[phone]

Mexico

Bombas GRUNDFOS de Mexico

S.A.de C.V

Boulevard TLC No. 15

Parque Industrial Stiva Aerop

uerto

Apodaca, N.L. 66600

Mexico

Phone:[phone]

Telefax:[phone]

Netherlands

North Harbour Industrial Estate

Albany Auckland

Phone:[phone]

Telefax:[phone]

m = 311

Norway

GRUNDFOS Pumper A/S

Strømsveien 344

Postboks 235, Leirdal

N-1011Oslo

TIf.: [phone]

Telefax:[phone]

Poland

GRUNDEOSPompysSp.zgq.

ul.Klonowa 23

PI-62-081 Przczmicrowo

Phone:[phone]

Telefax: [phone]

Portugal

Bomhas GRUNDEOS Portugal, S.A.

Tunglo Industrial Park

Tunglo, Miao-Li Count:

Taiwan, R.O.C.

Phone:[phone]

Telefax: [phone]

Thailand

GRUNDFOS (Thailand) Ltd.

947/168 Moo 12, Bangna-Trad Rd.

K.M.3,

Bangna, Phrakanong

Bangkok 10260

Phone:[phone]...91

Telefax:[phone]...6

Turkey

GRUNDFOS POMPASAN.ve TIC

LTD.STI

Bulgurlu Caddesi no. 32

TR-81190Usk

Phone:[phone]

Telefax:[phone]

United Arab Emirates 104

GRUNDFOS Gulf Distribution

P.O.Box 16768

Jebel All Free Zone

Dunal

Phone: [phone]

Telefax:[phone]

United Kingdom

GRUNDFOSPumps Ltd.

Grovebury Road

Leighton Buzzard/Beds, LU7 8TL

Phone:[phone]

Telefax: [phone]

U.S.A.

GRUNDFOSPumpsCorporation

17100 West 118th Terrace

Olathe, Kansas 66061

Phone:[phone]

Telefax: [phone]