9
which is going to be set by capacitor power value. Via buttons ▲, ▼ select the appropriate step. The step is
signalized by green LED of the step number. By pressing button
SET
the value of the step will appear on display.
Via buttons ▲, ▼ change the value (LED ind and LED cap inform about definition of the capacitor or de-
compensation reactor operated by controller output) and confirm it by button
SET
. Via buttons ▲, ▼ select
another step and follow the same procedure until all steps are set. After setting of all steps, keep pressing button
SET
until display will show
StP
and all step LED's will be off.
Maximum value of the step is 999 kVAr of inductive and capacitive type. Since the display has only three segments
to show the values up to 99,9 kVAr are shown with one decimal place. Values over 100 kVAr are shown as a
integer although step is still in 0,1 kVAr.
For activation of de-compensation steps study the parameter
EIC
.
6.6 Discharging time (dit)
For setting the absorption of steps, parameter
dit
is available in the menu. By this parameter, it is possible to set,
for each step separately, suitable time for capacitor discharge. Discharging time can be set from 5 to 900 seconds.
Default factory setting value is 120 seconds compatible with ETI capacitors type LPC. Default setting is optimal for
capacitors with built in discharge resistors, without using extra discharge resistors or inductors. For PFC systems
that have provided extra discharge resistors or inductors, which ensure quick discharge of capacitors,
dit
time can
be much lower, but not less than 60s. Discharging time influences on performance of PFC system, results in
invoice with use of reactive energy. Lower value makes system more responsive, but may cause capacitor
destruction!
6.7 Delay for disconnection (diP)
This parameter is represented on the display by symbol
diP
.
It is the minimum time for contactor step operation. If
during this time the request for disconnection of the step comes the step will not be disconnected until the
diP
time
is counted down. It is possible to be set from 5 to 900 seconds.
6.8 Fixed capacitor stages (FSt)
On the display it is represented by symbol
FSt
.
This parameter allows to set steps as a fixed ones. The regulator is
not counting those steps for regulation cycle. Each step can stay in three working modes.
•
Aut
– stage is normally regulated by controller
•
oFF
–
always off (status indication LED blinks red)
•
on
– always on (status indication LED blinks green)
6.9 Connection configuration (Con)
Parameter
Con
defines mutual position between voltage and current measuring circuits in the three-phase
network. According to controller supply and measuring voltage variant the correction angle differs.
Table 4 shows all possible combination and its correction angles of voltage and current measuring circuits for
controllers PFC 6 and PFC 8.
Current transformer location and
position
Line voltage
L1 (4) - L2 (3)
L2 (4) - L1 (3)
L2 (4) - L3 (3)
L3 (4) - L2 (3)
L3 (4) - L1 (3)
L1 (4) - L3 (3)
L1
k (2) - l (1)
210°
30°
90°
270°
330°
150°
l (1) - k (2)
30°
210°
270°
90°
150°
330°
L2
k (2) - l (1)
330°
150°
210°
30°
90°
270°
l (1) - k (2)
150°
330°
30°
210°
270°
90°
L3
k (2) - l (1)
90°
270°
330°
150°
210°
30°
l (1) - k (2)
270°
90°
150°
330°
30°
210°
