HGM7220N/HGM7220S GENSET CONTROLLER USER MANUAL
HGM7220N/HGM7220S Genset Controller 2019-02-28 Version 1.0 Page 16 of 60
6 PROTECTION
6.1 WARNINGS
When controller detects the warning alarms, it only issues alarm and does not stop the genset.
Table 5 - Warning Alarm Types
When the controller detects that the genset speed exceeds the pre-set
limit, it will initiate a warning alarm.
When the controller detects that the genset speed falls below the
pre-set limit, it will initiate a warning alarm.
When the controller detects that the speed of genset is zero and action
is selected “Warning”, it will initiate a warning alarm.
When the controller detects that the frequency of genset exceeds the
pre-set limit, it will initiate a warning alarm.
When the controller detects that the frequency of genset falls below
the pre-set limit, it will initiate a warning alarm.
When the controller detects that the voltage of genset exceeds the
pre-set limit, it will initiate a warning alarm.
When the controller detects that the voltage of genset falls below the
pre-set limit, it will initiate a warning alarm.
When the controller detects that the current of genset exceeds the
pre-set limit, it will initiate a warning alarm.
If engine does not stop completely when “failed to stop” delay is
expired, it will initiate a warning alarm.
When the controller detects that the voltage of charger falls below the
pre-set limit, it will initiate a warning alarm.
When the controller detects that the battery voltage of genset exceeds
the pre-set limit, it will initiate a warning alarm.
When the controller detects that the battery voltage of genset falls
below the pre-set limit, it will initiate a warning alarm.
When maintenance countdown is zero and action is selected
“Warning”, it will initiate a warning alarm.
When controller detects that the reverse power value (power is
negative) of genset exceeds the pre-set limit, and action is selected
“Warning”, it will initiate a warning alarm.
When controller detects that the power value (power is positive) of
genset exceeds the pre-set limit, and action is selected “Warning”, it
will initiate a warning alarm.
When controller receives engine warning signal via J1939, it initiate a
warning signal.
When controller detects that the phase of generator is lost, it will
initiate a warning alarm.