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21

7.3 CU 100 control unit

CU 100 incorporates a motor-protective circuit 
breaker and is available with level switch and cable.

Single-phase pumps

Connect a run capacitor to the control unit. For 
capacitor size, see the table below:

7.4 Frequency converter operation

For frequency converter operation please observe 
the following information:
Requirements must be fulfilled.
Recommendations ought to be followed.
Consequences must be considered.

7.4.1 Requirements

The thermal protection of the motor must be 
connected.

Peak voltage and dU/dt must be in accordance 
with the table below. The values stated are 
maximum values supplied to motor terminals. 
The cable influence has not been taken into 
account. See data sheet for the frequency 
converter used regarding the actual values and 
cable influence on the peak voltage and dU/dt.

If the pump is an Ex-approved pump, check if the 
Ex certificate of the specific pump allows the use 
of a frequency converter.

Set the frequency converter U/f ratio according to 
the motor data.

Local regulations and standards must be fulfilled.

7.4.2 Recommendations

Before installing a frequency converter, calculate the 
lowest allowable frequency in the installation in order 
to avoid zero flow.

Do not reduce the motor speed to less than 30 % 
of rated speed. 

Keep the flow velocity above 1 m/sec.

Let the pump run at rated speed at least once a 
day in order to prevent sedimentation in the 
piping system.

Do not exceed the frequency indicated on the 
nameplate. In this case there is a risk of motor 
overload.

Keep the power cable as short as possible. The 
peak voltage will increase with the length of the 
power cable. See data sheet for the frequency 
converter used.

Use input and output filters on the frequency 
converter. See data sheet for the frequency 
converter used.

Use a screened power cable if there is a risk that 
electrical noise can disturb other electrical 
equipment. See data sheet for the frequency 
converter used.

7.4.3 Consequences

When operating the pump via a frequency converter, 
please be aware of these possible consequences:

The locked-rotor torque will be lower. How much 
lower will depend on the frequency converter 
type. See the installation and operating 
instructions for the frequency converter used for 
information on the locked-rotor torque available.

The working condition of bearings and shaft seal 
may be affected. The possible effect will depend 
on the application. The actual effect cannot be 
predicted.

The acoustic noise level may increase. See the 
installation and operating instructions for the 
frequency converter used for advice on how to 
reduce the acoustic noise.

Pump type

Run capacitor

[

μ

F]

[V]

SL1 and SLV

30

450

Max. repetitive peak 

voltage

[V]

Max. dU/dt 

U

N

 400 V

[V/

μ

 sec.]

650

2000

Summary of Contents for SL1.50

Page 1: ...SL1 50 and SLV 65 0 9 1 5 kW Installation and operating instructions GRUNDFOS INSTRUCTIONS...

Page 2: ...2...

Page 3: ...Suomi FI Asennus ja k ytt ohjeet 180 Fran ais FR Notice d installation et de fonctionnement 205 GR 230 Hrvatski HR Monta ne i pogonske upute 256 Magyar HU Telep t si s zemeltet si utas t s 281 Italia...

Page 4: ...rad 481 Svenska SE Monterings och driftsinstruktion 506 Slovensko SI Navodila za monta o in obratovanje 531 Sloven ina SK N vod na mont a prev dzku 556 T rk e TR Montaj ve kullan m k lavuzu 581 CN 60...

Page 5: ...5 Approvals 18 6 6 Identification 19 7 Protection and control functions 20 7 1 LC and LCD level controllers 20 7 2 Thermal switches 20 7 3 CU 100 control unit 21 7 4 Frequency converter operation 21 8...

Page 6: ...avoided will result in death or serious personal injury WARNING Indicates a hazardous situation which if not avoided could result in death or serious personal injury CAUTION Indicates a hazardous sit...

Page 7: ...azard Death or serious personal injury Make sure that the lifting bracket is tightened before attempting to lift the pump Tighten if necessary Make sure the pit bottom is even before installing the pr...

Page 8: ...dfos accessories to avoid malfunction due to incorrect installation Only use the lifting bracket for lifting the pump Do not use it to hold the pump when it is in operation CAUTION Crushing of hands M...

Page 9: ...e pump into the pit 7 Fit the guide claw to the pump outlet Grease the gasket of the guide claw before lowering the pump into the pit 8 Slide the guide claw between the guide rails and lower the pump...

Page 10: ...cannot come into contact with the pump housing 4 Adjust the length of the power cable by coiling it up on a relief fitting to ensure that the cable is not damaged during operation Fasten the relief fi...

Page 11: ...xplosion proof pumps make sure that an external earth conductor is connected to the external earth terminal on the pump using a conductor with a secure cable clamp Clean the surface of the external ea...

Page 12: ...t Make sure that the fuses have been removed Make sure that all protective equipment has been connected correctly CAUTION Biological hazard Minor or moderate personal injury Make sure to seal the pump...

Page 13: ...e is damaged it must be replaced by the manufacturer his service agent or a similarly qualified person Make sure that the product is earthed properly Switch off the power supply and lock the main swit...

Page 14: ...equired level however the pump must always be started before the liquid level reaches the bottom inlet pipe to the pit Fig 7 Start and stop levels 4 3 Direction of rotation All single phase pumps are...

Page 15: ...ction 8 4 Oil check and oil change 3 Check that the monitoring units if used are operating satisfactorily 4 Check the setting of the air bells float switches or electrodes 5 Open the isolating valves...

Page 16: ...auto coupling system or stand freely on the bottom of a pit SL1 and SLV pumps are portable and designed for pumping domestic and industrial sewage and wastewater 6 3 Pumped liquids SL1 50 65 The prod...

Page 17: ...circuit The minimum level depends on the installation type and is specified in these installation and operating instructions The pumps can be used in duty cycles S3 halfway submerged or S1 fully subme...

Page 18: ...e ATEX directive 2014 34 EU 0344 is the number of the notified body which has certified the quality system for ATEX Explosion protection mark II Equipment group according to the ATEX directive definin...

Page 19: ...utput kW 21 Rated current A 22 Cos 1 1 load 23 Maximum liquid temperature C 24 Frequency Hz Type 1 16 17 18 19 20 21 22 23 24 25 26 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Model P c IP68 Hmax Qmax P2 RV Tma...

Page 20: ...10 cm above the start level switch however the alarm must always be given before the liquid level reaches the inlet pipe to the pit For further information see the installation and operating instructi...

Page 21: ...han 30 of rated speed Keep the flow velocity above 1 m sec Let the pump run at rated speed at least once a day in order to prevent sedimentation in the piping system Do not exceed the frequency indica...

Page 22: ...he hook is fixed properly to the lifting bracket Always lift the pump by its lifting bracket or by means of a forklift truck if the pump is fixed on a pallet Never lift the pump by means of the power...

Page 23: ...housing etc for possible wear Replace defective parts See section 8 8 Service kits Ball bearings Check the shaft for noisy or heavy operation by turning the shaft by hand Replace defective ball bearin...

Page 24: ...ection 8 4 Oil check and oil change 3 Fit both oil screws using the gaskets included in the O ring service kit See section 8 8 Service kits 8 5 Adjusting the impeller clearance The SLV pumps SuperVort...

Page 25: ...end the impeller will be removed together with the motor 3 Remove the screw 188a from the shaft end 4 Remove the impeller 49 from the shaft 5 Drain the oil from the oil chamber See section 8 8 Servic...

Page 26: ...ews All NBR 96115107 All FKM 96646049 Impeller Impeller complete with adjusting screw shaft screw and key SL1 50 65 09 96115096 SL1 50 65 11 96115097 SL1 50 65 15 96115098 SLV 65 65 09 96115110 SLV 65...

Page 27: ...aker trips after a short time a Low setting of the thermal relay in the motor protective circuit breaker Set the relay in accordance with the specifications on the nameplate b Increased current consum...

Page 28: ...ted in the EC Council directive 2006 42 EC relating to machinery 10 2 Electrical data 10 2 1 Power supply 1 x 230 V 10 6 50 Hz 3 x 230 V 10 6 50 Hz 3 x 400 V 10 6 50 Hz 10 2 2 Enclosure class IP68 acc...

Page 29: ...ce workshop The crossed out wheelie bin symbol on a product means that it must be disposed of separately from household waste When a product marked with this symbol reaches its end of life take it to...

Page 30: ...F Z2 Z4 Z6 Z7 Z9 Z10a Z11 Z12a Z15 Z16 Z23 ZDN1 S3OPR SL1 126 236 210 140 661 485 81 1 1 2 599 43 175 266 411 DN65 377 SLV 119 216 210 140 598 423 81 1 1 2 610 45 175 266 461 DN65 398 Z7 Z9 Z10a Z 1...

Page 31: ...x 704 Fig B Free standing installation SL1 50 SLV 65 TM06 5929 0316 TM06 6076 0316 Pump type A C D E F H I DC02 Z20 DN2 SL1 544 333 126 215 242 69 123 145 185 DN65 SLV 565 271 97 174 213 120 123 145 1...

Page 32: ...Appendix 705 Fig C Exploded view of SL1 50 pump TM06 5917 0316...

Page 33: ...Appendix 706 Fig D Exploded view of SLV 65 pump TM06 5936 0316...

Page 34: ...ng 150a Stator housing complete T leso statoru kompletn Statorgeh use komplett 153 Bearing Lo isko Lager 153b Locking ring Pojistn krou ek Sicherungsring 154 Bearing Lo isko Lager 155 Oil chamber Olej...

Page 35: ...unta t rica O rengas 150a Statorhus komplet Staatori korpus t ielik Alojamiento de estator completo Staattoripes kokonainen 153 Leje Laager Cojinete Laakeri 153b L sering Lukustusr ngas Anillo de bloq...

Page 36: ...rique O prsten O gy r k 150a Logement de stator complet ku i te statora sav ll r szh z teljes 153 Roulement le aj Csap gy 153b Collier de serrage Stezni prsten R gz t gy r 154 Roulement le aj Csap gy...

Page 37: ...riezuma bl vgredzens O ring 150a Cassa statore completo Statoriaus korpusas pilnas Statora korpuss viss Motorhuis compleet 153 Cuscinetto Guolis Gultnis Kogellager 153b Anello di blocco Fiksavimo ieda...

Page 38: ...l tip O O prsten 150a Obudowa statora kompletny Carca a do estator completo Carcas stator complet Stator ku i ta kompletan 153 o ysko Rolamento Rulment Kugli ni le aj 153b Pier cie zaciskowy Anel de f...

Page 39: ...mmerring Tesnilni obro 105 105a Axelt tning Tesnilo osi 107 O ring O obro i 150a Statorhus komplett Ohi je statorja popolna 153 Lager Le aj 153b L sring Varovalni obro 154 Lager Le aj 155 Oljekammare...

Page 40: ...105a Hriade ov upch vka Salmastra 107 O kr ky O ringler O 150a Teleso statora pln Stator muhafazas tam 153 Lo isko Rulman 153b Poistn kr ok Kilit halkas 154 Lo isko Rulman 155 Olejovej komore Ya b lm...

Page 41: ...1 51 E mail info_GDK grundfos com www grundfos com DK Estonia GRUNDFOS Pumps Eesti O Peterburi tee 92G 11415 Tallinn Tel 372 606 1690 Fax 372 606 1691 Finland OY GRUNDFOS Pumput AB Trukkikuja 1 FI 013...

Page 42: ...ona 421 2 5020 1426 sk grundfos com Slovenia GRUNDFOS LJUBLJANA d o o Lesko kova 9e 1122 Ljubljana Phone 386 0 1 568 06 10 Telefax 386 0 1 568 06 19 E mail tehnika si grundfos com South Africa Grundfo...

Page 43: ...444 Trademarks displayed in this material including but not limited to Grundfos the Grundfos logo and be think innovate are registered trademarks owned by The Grundfos Group All rights reserved 2019 G...

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