Wilo Control MS-L 2x4kW Series - Fault Memory and Further Steps; Appendix; System Impedance Tables; Spare Parts Information

InstallationandoperatinginstructionsWilo-ControlMS-L2x4kW 41
APPENDIX English
LED lights up red
Cause: Winding temperature monitoring has been
triggered
Solution: Check pump and wiring (converter bridge
may be missing); check pump operating conditions
LED lights up red
Cause: High-water alarm has been triggered.
Solution: Check pump/unit operating conditions
and level settings
All LEDs light up simultaneously for 2sec.
Cause: Button lock active
Solution: Deactivate the button lock by simulta-
neously pressing down the Manual Mode, Stop and
AutomaticModebuttons(forapprox.1s).
All LEDs light up from right to left.
Cause: Incorrect phase sequence in mains connec-
tion
Solution: Swap over 2 phases in the switchgear's
mains connection
10.3. Fault memory
Theswitchgearhasafaultmemory.Thelastfault
is stored retentively in the fault memory.
Opening the fault memory
By pressing down the Stop and Automatic Mode
buttons simultaneously, the last fault is indicated
by the corresponding LED.
P1
Deleting the fault memory
The fault memory is deleted by simultaneously
pressingandholdingdown(forapprox.1s)the
pump 1 Manual Mode and Stop buttons.
10.4. Further steps for troubleshooting
If the points listed here do not rectify the fault,
contact Wilo Customer Service. They can help you
asfollows:
• Telephone and/or written support from Wilo
Customer Service
• On-site support from Wilo customer service
• Inspection or repair of the switchgear at the
factory
Please note that you may be charged for some
services provided by our customer service.
Formoredetails,pleasecontactWiloCustomer
Service.
11. Appendix
11.1. System impedance tables
System impedances for 1~230 V, 2-pole, direct starting
Power System impedance Connections/h
kW ohms
1.5 0.4180 6
2.2 0.2790 6
1.5 0.3020 24
2.2 0.1650 24
1.5 0.2720 30
System impedances for 1~230 V, 2-pole, direct starting
Power System impedance Connections/h
kW ohms
2.2 0.1480 30
System impedances for 3~400 V, 2-pole, direct starting
Power System impedance Connections/h
kW ohms
2.2 0.2788 6
3.0 0.2000 6
4.0 0.1559 6
2.2 0.2126 24
3.0 0.1292 24
4.0 0.0889 24
2.2 0.1915 30
3.0 0.1164 30
4.0 0.0801 30
System impedances for 3~400 V, 4-pole, direct starting
Power System impedance Connections/h
kW ohms
3.0 0.2090 6
4.0 0.1480 6
2.2 0.2330 24
3.0 0.1380 24
4.0 0.0830 24
2.2 0.2100 30
3.0 0.1240 30
4.0 0.0740 30
11.2. Spare parts
Spare parts can be ordered from Wilo Customer
Service.Toavoidreturnqueriesandincorrector-
ders, the serial and/or article number must always
be supplied.
Subject to change without prior notice!