KSB PumpDrive 2 - Troubleshooting Common Issues; Faults;Malfunctions: Trouble-shooting

11 Trouble-shooting
189 of 212
PumpDrive 2
11 Trouble-shooting
DANGER
Unintentional start-up
Risk of fatal injury due to electric shock!
▷ Disconnect the frequency inverter from the mains before carrying out any
maintenance and installation work.
▷ Prevent the frequency inverter from being re-started unintentionally when
carrying out any maintenance and installation work.
DANGER
Contact with live components
Risk of fatal injury due to electric shock!
▷ Never remove the centre housing part from the heat sink.
▷ Mind the capacitor discharge time.
After switching off the frequency inverter, wait 10minutes until dangerous
voltages have discharged.
NOTE
Depending on the combination of settings, the frequency inverter could
conceivably restart automatically after acknowledgement/reset or when the cause
of the malfunction or fault has been eliminated.
The operator ensures that trouble-shooting is performed by authorised, qualified
specialist personnel who are thoroughly familiar with the operating manual.
Reset the frequency inverter to the default factory settings before engaging in any
fault rectification measures.
11.1 Faults/malfunctions: Trouble-shooting
WARNING
Improper work to remedy faults
Risk of injury!
▷ For any work to remedy faults observe the relevant information in this manual
or in the relevant accessory manufacturer's product literature.
If problems occur that are not described in the following table, consultation with the
KSB customer service is required.
A
Mains fuse rating too small for the nominal mains current.
B
Motor does not start.
C
Motor running unevenly.
D
Max. speed not reached.
E
Motor running at maximum speed only.
F
Motor running at minimum speed only.
G
No/faulty 24V supply.
H
Wrong direction of rotation of the motor.
I
Fault message/protective tripping.
Table114: Trouble-shooting
A B C D E F G H I Possible cause Remedy
- ✘ - - - - ✘ - - No voltage Check the mains voltage; check the mains fuses.
- ✘ - - - - - - - No enable Check enable via DIGIN-EN and system start.