9
6.6. Discharging time (dItI)
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 (dIPA)
This parameter is represented on the display by symbol
dIPA
. It is the minimum time for contactor stage circuit closing. It is
possible to be set from 5 to 900 seconds. Setting procedure is according to the same rules as another parameters explained
before.
6.8. Number of stage circuit closing (rSSt)
On the display, it is represented by symbol
rSSt
. It is possible to set allowed number of circuit closing for each contactor
stage. Maximum set value is 99.99, which means 99990 closings. Number that appears on display has to be multiplied by
1000.
6.9. Fixed capacitor stages (FISt)
On the display it is represented by symbol
FISt
. This parameter allows to set stages as a fixed ones. The regulator is not
counting those stages for regulation cycle. Each stage can stay in three working regimes.
•
Auto
– stage is normally regulated by controller
•
oFF
–
always off (status indication LED blinks red)
•
on
– always on (status indication LED blinks green)
•
tAr2
– stage is always on when second tariff is activated at tariff input
6.10.
Connection configuration (CoCo)
If the regulator is connected according the connection diagram on the picture 3 correction angle is 90°. That is default value
set by manufacturer. If the regulator is not connected according to this connection diagram, then it is necessary to make angle
correction by displacement of measuring current and voltage. This parameter allows to set angle movement from 0° to 330°
in steps of 30°. On the display symbol
CoCo
will be shown. After pressing the button
SET
, the display will show set value.
Via buttons
▲
,
►
it is possible to change the value. Another press of button
SET
will save new value into the memory.
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°
Table 5. Phase shift setting for all possible configurations
