V2.00
KBR multicomp F144-3PH
45
19837_EDEBD
A0227-1816-1_EN
Notes on detecting errors
Messages that have to be deleted manually are shown under Error states. This
guarantees that messages relevant to the correct operation of the system do
not go unnoticed.
The following status messages are displayed:
Power failure has occurred
Reset has been performed
Operating cycles of a contactor stage above limit
Limit violation of measuring voltage
Limit violation of measuring current average value
Limit violation of measuring voltage harmonics (THD U)
Limit violation of measuring current harmonics (Id)
Facility too small (FTS)
5. Notes on detecting errors:
Undercompensation, not enough stages are switched on.
Check controller for error messages 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 dimen-
sioned, almost all stages need to be switched on.
Check the main fuse and group fuses of the system. All values are entered 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 for
defective contactors
.
Undercompensation, all stages are switched on.
The existing system is not sufficient (e.g. due to new inductive consumers).
Undercompensation, too many stages are switched on.
Check controller settings (target cos phi capacitive?). Transformer connected in
the wrong position?
Controller switches a lot, in particular during low load (at the weekend,
during the night).
Check programming of the transformer ratio.
Switch on a small stage permanently (manually), if required.
