HGM8156 GENSET PARALLEL CONTROLLER USER MANUAL
HGM8156 Genset Parallel (With Mains) Controller 2019-09-10 Version 1.1 Page 17 of 44
6.2 SHUTDOWN ALARMS
When controller detects shutdown alarm, it will cutoff bus close signal and issues stop signal
immediately.
Table 9 Shutdown Alarms
No
Type
Description
1
Gen Phase Sequence
Wrong
When the controller detects phase sequence wrong, it will initiate a
shutdown alarm.
2
Volt Bus Phase
Sequence Wrong
When the controller detects mains phase sequence wrong, it will initiate
a shutdown alarm.
6.3 TRIP AND STOP ALARMS
When controller detects trip and stop alarm signal, it immediately disconnects bus close signal, and
issues stop signal.
Table 10 Trip and Stop Alarms
No.
Type
Description
1
Maintenance Due
When count down time is 0 and the action is selected
“Trip and Stop”, it
will initiate a trip and stop alarm.
2
Digital Input
When digit input port is set as
“Trip and Stop” and the alarm is active, it
will initiate a trip and stop alarm.
3
Mains Over Freq
When the controller detects that the mains frequency has exceeded the
pre-set value, it will initiate a trip and stop alarm.
4
Mains Under Freq
When the controller detects that the mains frequency has fallen below
the pre-set value, it will initiate a trip and stop alarm.
5
Mains Over Voltage
When the controller detects that the mains voltage has exceeded the
pre-set value, it will initiate a trip and stop alarm.
6
Mains Under Voltage
When the controller detects that the mains voltage has fallen below the
pre-set value, it will initiate a trip and stop alarm.
7
Mains ROCOF
When the controller detects that the ROCOF (change rate of frequency)
has exceeded the pre-set value, it will initiate a trip and stop alarm.
8
Mains Vector Shift
When the controller detects that vector shift value has exceeded the
pre-set value, it will initiate a trip and stop alarm.
