V2.01
25359_EDEBDA0279-2320-1_EN
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Troubleshooting
10 Notes on Troubleshooting
Undercompensation, not enough stages are switched on:
Check controller for error messages If the target cos φ is set to 0.8 capacitive, the capac-
itors need to start being switched on. If the system is not over-dimensioned, almost all
stages need to be switched on.
Check the system's main fuse and group fuses. All values can be found in the enclosed
documents.
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 individual-
ly for excessive current input and defective contactors.
Undercompensation, all stages are switched on:
The existing system is insuciently dimensioned (e.g. due to new inductive consumers).
Please contact your local representative (enlarge your system). The number of the service
hotline is given on the cover of these operating instructions.
Overcompensation, too many stages are switched on:
Check the controller settings (target cos φ capacitive?).
Is the transformer installed in the wrong position?
Controller switches too often, in particular during light load times (at the weekend, at
night):
Check the transformer ratio conguration. If necessary, (manually) switch a small stage on
permanently.
NOTE
Please call your local representative if you are unable to nd the cause of the error.
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