HGM9520N Genset Paralleled Controller User Manual Page 18 of 111
5.1
WARNING ALARMS
When controller detects the warning alarm, it only issues warning, and the genset does not open and
shutdown. When the warning signal disappears, alarm is removed automatically.
Table 8 Warning Alarms
No
Type
Description
1
Over Speed
When this is enabled, and the controller detects that the genset speed
is above the pre-set limit, it will initiate a warning.
It is always detected.
2
Under Speed
When this is enabled and the controller detects that the genset speed is
below the pre-set limit, it will initiate a warning.
It is detected after “warming up” and before “stop idle”.
3
Loss of Speed Signal
When the controller detects the genset speed is 0, it shall issue a
warning.
It is detected after “safety on time” before “ETS solenoid hold”.
4
Gen Over Frequency
When this is enabled, and the controller detects the frequency is above
the preset limit, it shall issue a warning.
It is detected always.
5
Gen Under Frequency
When this is enabled, and the controller detects the frequency is below
the preset limit, it shall issue a warning.
It is detected after “warming up time” before “stop idle time”.
6
Gen Over Voltage
When this is enabled, and the controller detects the voltage is above the
preset limit, it shall issue a warning.
It is always detected.
7
Gen Under Voltage
When this is enabled, and the controller detects the voltage is below the
preset limit, it shall issue a warning.
It is detected after “warming up time” before “stop idle time”.
8
Gen Over Current
When this is enabled, and the controller detects the current is above the
preset limit, it shall issue a warning.
It is always detected.
9
Negative Sequence
Current
When this is enabled, and the controller detects the value is above the
preset limit, it shall issue a warning.
It is always detected.
10
Earth Fault
When this is enabled, and the controller detects the earth current is
above the preset limit, it shall issue a warning.
It is always detected.
11
Reverse Power
When this is enabled, and the controller detects the reverse power
(negative) is above the preset limit, it shall issue a warning.
It is always detected.
12
Over Power
When this is enabled, and the controller detects the genset power
(positive) is above the preset limit, it shall issue a warning.
It is always detected.
13
Loss Excitation
When this is enabled, and the controller detects the genset reactive
