HGM7220N/HGM7220S GENSET CONTROLLER USER MANUAL
HGM7220N/HGM7220S Genset Controller 2019-02-28 Version 1.0 Page 20 of 60
6.4
TRIP ALARM
When controller detects trip alarms, it will immediately disconnect the generator close signals but
genset does not stop.
Table 8 - Trip Alarms
No.
Type
Description
1
Over Current
When controller detects the genset current value is higher than the set
value and action is selected
“Trip”, it will send trip signals.
2
Reverse Power
When controller detects that the genset reverse power value (power is
negative) exceeds the pre-set value, and action is selected
“Trip”, it will
send trip signals.
3
Over Power
When controller detects that the genset power value (power is positive)
exceeds the pre-set value, and action is selected
“Trip”, it will send trip
signals.
4
Input Trip
When input port is configured as
“Trip”, and if it is active, controller will
send trip signals.
5
Mains
Breaker
Fail
HGM7220S controller: when controller detects mains C/O fails, it shall
issue the alarm signal.
6
Gen Breaker Fail
HGM7220S controller: when controller detects generator C/O fails, it shall
issue the alarm signal.
7
Fail to Sync
HGM7220S controller: When controller is in auto mode, if synchronization
signal is not detected during the synchronization time for mains/generator
synchronization close, it shall issue a warning signal.
