Rev. 1.00
22586_EDEBD
A0253-0318-1_EN
42
KBR multicomp F144-3 6DO/6RO
Troubleshooting
9
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 capacitors need to start being switched on. If the system is not over-dimen-
sioned, 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
individually for excessive current input and defective contactors.
Undercompensation, all stages are switched on:
The existing system is insuffi ciently 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 instruc-
tions.
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 confi guration. If necessary, (manually) switch a
small stage on permanently.
NOTE
Please call your local representative if you are unable to fi nd the cause of the
error.
The phone number is given on the cover of these operating instructions.
