ESTAmat PFC-N
D.No.13157 - Rev. 02
Operating Instruction MV1181
Page 17 of 36
5.3
300
Setup Control System
The items in the menu "control system" allow an optimization of the control or an adaptation
to specific site requirements.
300
Setup Control System
MENU
FUNCTION
RANGE
301
Control sensitivity
55...100
%
The control sensitivity indicates the switching threshold for
switching of the steps. A low values allows a more accurate
compensation result. However, this increases the likelihood the
controller tends to oscillate.
The adjustment range is between 55% and 100%.
The factory setting is 60% of the available steps.
302
Target Pf 1
0.70
c
...0.70
i
With the setting of the target Pf 1, the power factor is set to be
achieved by power factor correction.
303
Target Pf 2
0.70
c
...0.70
i
With the setting of the target Pf 2, the power factor is set to be used
when P-export is detected or switch over to NT.
304
Target Pf 2 for P Export
Yes/No
"YES" the controller operates in P-export with the target Pf 2 as
control target.
"NO" the controller operates in P-export with the target Pf 1.
305
Switching time latency
1...6500
s
The switching time is the time what is waited between the switching
of individual steps in the normal control algorithm. This value
should be adapt to the site.
When setting the switching time, the following points should be
considered:
1.
The switching time is to protect the relays from unnecessary
switching operation and to rapid wear.
2.
During the switching time the need of reactive power is
averaged. This function compensates fast load changes.
306
Switching time Step exchange
1...6500
s
This is the time between the disconnection of an active step and the
switch on of a better in the identified need for reactive power
matching step. When step exchange, normal switching time is not
respected.
