Beluk CX plus, Справочное руководство

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Technical documentation Rev. 02
Reactive Factor Controller CX plus
34
Outputs which are set to the step type “FON” or “Flty” are not considered
during the
automatic initialisation .
NOTE: The automatic initialisation (AI) can only identify the phase, if
capacitors are connected to the switching outputs. If the CX plus
compensates the reactive power by means of reactors, this function will
cause errors. AI works best when there are constant load conditions.
PFC Control ON/OFF/Hold
Starting, stopping and switching off the automatic control. The following
settings are available:
ON : Control is ON and works in normal operation.
OFF : Control is OFF and active steps are switched off one by one at 3
second intervals.
Hold : Control is stopped and the active steps remain switched on.
If the control is set to "OFF", "PFC" and "OFF" appear alternatingly on the
display.
If the control is set to "Hold", "PFC" and "Hold" appear alternatingly on the
display.
In order to start the control, set the setting to "ON".
NOTE:
If the step identification was switched off and if the current
transformer factor and no step size has been entered manually yet, the
control is switched off (“OFF”) and the setting is locked. The setting
remains locked until the current transformer factor is entered once and at
least one step size is entered manually. Then, the control can be switched
on again.
CP1 Target COS

1 0.70 c ...0.70 i
The active power factor, which shall be reached by the reactive power
compensation (control target), is determined by setting the target Cos

1.
St Switching time 1...6500 s
The switching time refers to the waiting time between switching individual
steps in the normal control algorithm. This value should be adjusted
respectively.
The switching time should be set based on the following aspects:
1. The switching time shall protect the contactors against an
unnecessary amount of switching operations and thus against a
too rapid wear.
2. The need for reactive power is determined via the switching time.
Fast fluctuations of the reactive power are compensated in the
process.
OUt Switching outputs (step
1…max)
The following step types except for the step type “
Flty
” can be set for each
individual step:

AUTO = Step is active and is used by the control.

FON = Step is permanently switched on (step is monitored
nevertheless and is switched off in critical situations).

FOFF = Step is permanently switched off / deactivated. Steps
which are not used should be set to this step type in order to
prevent unnecessary switching operations and alarms.

Flty = Step was switched three times without success and
identified as defective. This is not used for the control anymore.