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4. Configuring the capacitor stages
There are two ways of configuring the capacitor stages. The stages can be configured
manually or using the auto configuration mode (a connected current measuring module
is required).
The most important setting to pay attention to is the stage power. The stage power can
be looked up on the nameplate of the stage or the circuit diagram and then programmed
manually. The auto configuration mode then automatically sets this value. However, it has
to be checked and confirmed after each time the auto configuration mode is applied.
Detailed instructions for the auto configuration mode are given in chapter Extra , Start-up
, Stages , Stage , Auto configuration mode.
After the stage power has been configured, you have to set the detuning factor. This
factor can be read on the circuit diagram cover sheet or the nameplate of the stage.
If the compensation unit consists of several cabinets, the cabinet assignment should be
adjusted accordingly.
Detailed instructions for this step are given in chapter Start-up under Stages submenu.
5. Function test
After all values have been programmed, a function test should be performed. To do so,
the controller has to be taken off the voltage supply for a few seconds.
After re-connecting it to the voltage supply, the controller has to start automatically. If
the cosφ voltage is read out in the cosφ act. menu immediately after switching it on, the
value for cosφ should be low and inductive. After approx.
180 seconds, the controller starts to switch on the individual capacitor stages.
The cosφ, which can be read out in the cosφ act. Menu, should have risen compared to
previous values, or it should rise when switching on additional stages. If the compensati-
on unit is dimensioned correctly, the controller should compensate the set target cosine
after a certain period of time.