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19837_EDEBD
A0227-2620-1_EN
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Commissioning
2. Function test
A function test should be performed after all values have been programmed step by step,
by disconnecting the controller from the power supply for a few seconds .
The controller should start automatically after it is reconnected to the power supply .
When reading out the CosPhi voltage in the cosPhi instantaneous menu immediately
after switching on, CosPhi should be low and inductive . After approx . 60 seconds, the
controller starts to switch on the individual capacitor stages .
The CosPhi, which can be read in the cosPhi instantaneous menu, should have risen in
comparison with former values, or it should rise when switching on additional stages . If
the compensation system is designed correctly, the controller should compensate to the
set target cos phi after a while .
Controller not configured:
If a controller which has not been configured is to be started up, the following procedure
has to be performed step by step .
1. Configuring current transformer values
All current transformer parameters need to be configured correctly for the compensation
controller to function properly . Primary and secondary current of the transformer have
to be set . These parameters can be found on the nameplate of the current transformer . In
addition, the phase allocation of the transformer needs to be configured correctly . In the
controller, the phase (L1, L2, L3) in which the current transformer is integrated has to be
set . This setting does not have to be made for 3-phase measurement .
2. Setting target cosine
You can ask your electricity supplier for the target cos, which should be set up at this
point . The target cosine is by default set to 0 .95 inductive .
3. Configuring the capacitor stages
The stages can be configured manually .
The most important setting to pay attention to is the stage power . You can find the stage
power on the nameplate of the stage or the circuit diagram and then program it manual-
ly .