Table 4. Configuration menu parameters
6.1. Target cosF setting (CoS1, CoS2)
Press the button SET at least for 5 second for entering configuration mode. On the display will appear parameter symbol
CoS1. After another pressing of button SET display will show set value. Via buttons ▲, ►set new requested value in the
limits from 0,8 inductive to 0,8 capacitive. Another pressing of button SET saves new value to the memory and on display it
will appear again symbol CoS1.
For programming CoS2 follow the same instructions as previous case. For changing from CoS1 to CoS2 it is necessary to
connect auxiliary supply of 230 V AC to the terminal marked as 2nd Tariff on the connection diagram.
6.2. Setting of transformer ratio (I_tr, U_tr)
If SET mode is activated, move by buttons ▲, ►to the parameter I_tr. After pressing button SET, the set value will appear
on the display. Via buttons ▲, ►is possible to change value of transformer ratio. Another press of button SET saves new
value to the memory and on display, symbol I_tr will appear again.
It is important to have in mind that the value which is set, is ratio itself. It means that, for example, if primary nominal current
of transformer is 50 A and secondary is 5 A then set parameter value is I_tr = 10.
In case of voltage transformer usage, parameter U_tr should also be set the same way.
Caution
Measurement range of the current inputs is from 3 mA to 6 A. Maximum of the current transformer ratio is 30000 / 5 A.
6.3. Automatic detection of compensation steps (Auto)
Another parameter in the menu is function Auto. After pressing of button SET, the display will show oFF. Via buttons ▲, ►
change to the value on. After double pressing of button SET automatic detection will start to detect connected stages. The
symbol CoCo will appear on the display, and first capacitor stage will be switched on and off 6 times in the cycle of 20
seconds.
Detection of regulator connection to the network is followed by detection of power of connected capacitor stages. During
detection, the measured values of each stage are shown on the display. Measured values are being rounded on 0,5 kvar. After
the detection is finished, the regulator will switch parameter Auto back to oFF.
Important
In some cases regulator is not able to make automatic detection and in place of measured power shows zeros. It can happen
in places with very fast changes of network parameters, where measured values will not be correct. In this case regulator
shows Err1 and it is necessary to set parameters manually, after detailed network measurements.
6.4. Deceleration of regulation at over compensation (SHtd)
This parameter is represented by symbol SHtd. This function is used for slowing down the regulation during over-
compensation. At under-compensation regulation is slowed down according to average power factor. This function assures
reduction of switch on/off operation of contactor stages. After pressing the button SET, display will show set value of
deceleration. By buttons ▲, ►it is possible to change value and button SET saves this into the memory. Current situation of
regulation deceleration during over-compensation is shown under parameter SHtd, in the menu of measured values.
6.5. Manual setting of compensation stages (St_P)
After parameter Shtd, the parameter that follows in the menu is St_P. Pressing the button SET will enter the sub menu,
where it is necessary to select the stage, which has to be set, via buttons ▲, ►. Selected stage will be signalized by green
LED. By pressing button SET on display will appear set value of stage that is signalized by relevant green LED. Via buttons
▲, ►it is possible to change the value and by pressing button SET to save this into memory. Via buttons ▲, ►select
another stage, which must be set and follow the same procedure as before. After setting of all stages, keep pressing button
SET until display will show St_P and all LED's will be off.
