Rev. 1.00
20801-EDEBDA0232-4716-1_EN
36
KBR multicomp F144-NC-1V1C6DO6RO-2 Troubleshooting
8 Notes on detecting errors
Undercompensation, not enough stages are switched on:
Check the controller for detected errors (refer to section 7.8). If the target Cos-
Phi is set to 0.8 capacitive, the capacitors need to start to be switched on. If the
system is not over-dimensioned, almost all stages need to be switched on.
Undercompensation, all stages are switched on:
The existing system is not su cient (e.g. due to new inductive consumers).
Please contact the KBR service (for system expansion).
Check the main fuse and group fuses of the system. Checking the controller
parameters. The group fuses must display at least 1.7 times the value of the
capacitor power. If the fuses blow despite being correctly selected, the groups
must be checked individually for excessive current input and for defective
contactors.
Overcompensation, too many stages are switched on:
Check controller settings (target CosPhi capacitive?). Transformer connected in
the wrong position?
Controller switches a lot, in particular during low load times (at the weekend,
at night):
Check the transformer ratio con guration. If required, (manually) switch on a
small stage permanently.
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