HGM8156 GENSET PARALLEL CONTROLLER USER MANUAL
HGM8156 Genset Parallel (With Mains) Controller 2019-09-10 Version 1.1 Page 16 of 44
6
PROTECTIONS
6.1 WARNING ALARMS
When controller detects warning signals, it only issues warnings, not shutdown the genset.
Table 8 Warning Alarms
No
Type
Description
1
Battery Over Volt
When the controller detects that start battery voltage has exceeded the
pre-set value, it will initiate a warning alarm.
2
Battery Under Volt
When the controller detects that start battery voltage has fallen below
the pre-set value, it will initiate a warning alarm.
3
Maintenance Due
When count down time is 0 and the action is selected
“Warn”, it will
initiate a warning alarm.
4
Digital Input
When digit input port is set as warning and the alarm is active, it will
initiate a warning alarm.
5
Fail to sync
When the controller does not detect synchronization signal within the
pre-set synchronization time, it will initiate a warning alarm.
6
Genset Number Few
Least start genset number is not reached when start request delay is
over, it will initiate a warning alarm.
7
Bus Capacity Low
When current power percentage of bus is above 100% and alarm action
is selected to Warn, it will initiate a warning alarm.
8
Mains Output Power
Limit
When mains power is above pre-set output power limit and alarm action
is selected Warn, it will initiate a warning alarm.
9
Mains Over Freq
When controller detects mains frequency is over pre-set limit, it initiates
a warning signal.
10 Mains Under Freq
When controller detects mains frequency is below pre-set limit, it
initiates a warning signal.
11 Mains Over Voltage
When controller detects mains voltage is over pre-set limit, it initiates a
warning signal.
12 Mains Under Voltage
When controller detects mains voltage is below pre-set limit, it initiates a
warning signal.
13 Mains ROCOF
When controller detects mains ROCOF is over pre-set limit, it initiates a
warning signal.
14 Mains Vector Shift
When controller detects mains vector change is over pre-set limit, it
initiates a warning signal.
