Technical documentation
Rev. 02
Reactive Factor Controller CX plus
71
Set the setting the “
OFF
” in the SETUP menu 100/ PFC or 310.
Switch off the step identification.
Set the setting to “
NO
” (step identification off) in the SETUP menu 308.
Enter the step sizes manually.
Enter the respective step nominal value for all connected steps in the SETUP menu 402.
Check the step type.
In case of problems with the step identification, it is possible that connected steps have been set
to "
FOFF
" by the controller. Therefore, the step size of the individual steps should be checked in
the SETUP menu 100/OUt or 403
and be switched to “AUTO”, if necessary.
Switch on the control again.
Set the setting to "
ON
" in the SETUP menu 100/ PFC or 310.
The control can now work normally. Despite the step identification being switched off, the current step
sizes are updated (power loss identification) and faulty steps are identified.
13.3 Step identification is deactivated / manual entry of the step sizes
The step sizes = step nominal values must be entered manually, when the step identification is
switched off (SETUP/308 =
NO
). Otherwise, the controller will switch on and immediately switch off
steps again, because the initial value of the current step size deviates too much from the actual step
size in the step database (3 var capacitive).
The step size = step nominal value can be entered for each individual step in the SETUP menu 402.
The original step size is equated with the current step size in the step database after entering the step
size for a step. The monitoring of the step power loss is active for this step from now on.
The CX plus continuously adjusts the current step size to the determined value when switching a step
on and off. The adjustment takes place softly, so that a heavy load fluctuation during the measurement
does not falsify the step size. In this way, the power loss of a step may be determined. The updating
and adjustment of the step size is even active when the step identification is switched off.
If the controller cannot identify a mains reaction during 3 consecutive switching operations (switching
on and off = 1 switching operation), the step is considered as faulty by the control. If the function
“
Lock faulty steps
” is activated (SETUP/309 =
YES
), the affected step is set to the step type
“
Flty
”
and is ignored by the control. It is not possible to switch this step manually. The step symbol of the
faulty step is flashing in the step display on the display.
If the current transformer or the voltage transformer factor is entered, the current step size of each
individual step is reset to its original value (the last manually entered value).
NOTE:
The control is switched off, set to “OFF” and blocked, when you switch off the step
identification. This setting remains blocked until the current transformer factor is entered once and at
least one step size is entered manually. The control cannot be switched on again until then.
