InteliATS
NT
PWR, SW version 2.5, ©ComAp
– May 2015
73
IA-NT- PWR-2.5-Reference Guide.pdf
4) The gen-set remains running.
5) To stop the gen-set select a different mode than TEST.
MCB Opens On
[MAINSFAIL / GENRUN]
MAINSFAIL
The command to open the MCB is given immediately after mains fail condition evaluated.
GENRUN
The command to open the MCB is not given till the Gen-set starts (with respecting the setpoint
EmergStart Del
), reaches proper voltage and frequency and
Min Stab Time
elapses. After that, the
MCB is opened,
Transfer Del
timer is started and the GCB is closed after the timer elapses.
N
OTE
:
This option should be used for MCBs using 230V control and not equipped with the under voltage coil.
GCBFeedbackDel
[s]
After closing binary output GCB close/open this timer starts. After the timer elapses the state of BI:
GCB feedback is evaluated.
If the setting of the GCB feedback del setpoint is longer than 60.0 s it means there is NO TIMEOUT.
Step:
0.1 s
Range:
0
– 60.0 s, 60.1 s = NO TIMEOUT.
MCBFeedbackDel
[s]
After closing binary output MCB close/open this timer starts. After the timer elapses the state of BI:
MCB feedback is evaluated.
If the setting of the MCB feedback del setpoint is longer than 60.0 s it means there is NO TIMEOUT.
Step:
0.1 s
Range:
0
– 60.0 s, 60.1 s = NO TIMEOUT.
Sync Ctrl
Voltage Window
[%]
This setpoint adjusts maximum allowed difference between generator and mains/bus voltage in
respective phases for passive
synchronizing
:
Step:
1 %
Range:
0
– 30 %
Default:
10 %
Freq Window
[Hz]
This setpoint adjusts maximum allowed difference between generator and mains/bus frequency in
respective phases for passive
synchronizing
:
Step:
0.1 Hz
Range:
0.0
– 2.0 Hz (0.0 – 0.3 Hz for CLOSED transition)
Default:
0.2 Hz
H
INT
:
This setpoint depends on transition type selected (setpoint
Transition
). If Closed transition takes
place
Frequency Window
setpoint values above 0.3 Hz are internally limited to value of 0.3 Hz.
Sync Timeout
[min]
This setpoint adjusts maximum time interval when the system waits for both sources to get
synchronized. After that time synchronization timeout alarm is activated and either changeover is
interrupted or continues as open delayed transition. See
Transition
setpoint description for more
details, please.
Step:
1 min
Range:
1
– 60 min
Default:
1 min
