Rev. 1.00
20801-EDEBDA0232-4716-1_EN
16
KBR multicomp F144-NC-1V1C6DO6RO-2 Commissioning
4 Starting up the system
4.1 General notes on starting up
Switch on a su cient number of inductive consumers (e.g. motors) before
switching the compensation system on. A transformer current of at least 15
mA needs to be owing in the secondary circuit for the controller to be acti-
vated. Below this limit, the display will show “missing transformer current”.
Check the transformer connection (transformer ratio too high?).
The measuring voltage has to be correct before switching on the controller.
No error message is displayed, but the learning mode cannot be started.
If stage power has been programmed, the power factor CosPhi has to be
displayed after initialization. Normally, when no capacitors are connected,
CosPhi lies in the range of 0.6 to 0.9 inductive, (e.g. CosPhi 0.80 ind).
If a capacitive value is displayed or if the “G” symbol is ashing, the phase al-
location of current and voltage measurement is incorrect (provided that there
is no generator operation at the time). In the Commissioning programming
menu, the phase allocation can be changed using the rotary eld U and rotary
eld I functions.
The rst switching operation may take up to 10 seconds. The thyristor stages
are switched in a set milliseconds interval until compensation. If the existing
thyristor stages are not su cient, additional contactor stages are switched on.
The CosPhi displayed has to approximately reach the target CosPhi.
Note
The learning process is started in the Commissioning menu,
in the Activate learning mode submenu.
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