Protection - Smartgen HGM1790N User Manual

5.

PROTECTION

Icons Alarms
Emergency Shut Alarm
Over Speed Shut
Over Frequency Shut
Under Speed Shut
Under Frequency Shut
High Temp. Shut
High Temp. Input Shut
Temp.
Open/Short Circuit Shut
Low Oil Pressure Shut
Low Oil Pressure Input
Shut
Oil Pressure
Open/Short Circuit Shut
Gen Over Current Warn Warn Alarm
Gen Over Current Shut
HGM1790N Genset Controller User Manual
Table 5 Controller Alarms
Type
Controller sent alarms when detected emergency
Shut Alarm
shutdown alarms.
Controller sent alarms when genset speed is
Shut Alarm higher than over speed threshold and lasts for over
2s.
Controller sent alarms when generator frequency is
Shut Alarm higher than over frequency threshold and lasts for
over 2s.
Detection after warming up delay, controller sent
Shut Alarm alarms when speed is lower than under speed
threshold and lasts for over 10s.
Detection
controller sent alarms once genset frequency fell
Shut Alarm
below under frequency threshold and lasts for over
10s.
Detection after safe running delay, controller sent
Shut Alarm alarms once genset temperature is higher than
over temp. threshold and lasts for over 3s.
Detection after safe running delay, controller sent
Shut Alarm
alarms when high temperature input is active.
Detection after safe running delay, controller sent
Sensor
Shut Alarm alarms when temperature sensor resistance value
is above 6000Ω or under 5Ω.
Detection after safe running delay, controller sent
Shut Alarm alarms when genset oil temperature is lower than
low oil pressure threshold and lasts for over 2s.
Detection after safe running delay, controller sent
Shut Alarm
alarms when low oil pressure input is active.
Detection after safe running delay, controller sent
Sensor
Shut Alarm alarms when oil pressure sensor resistance value
is above 6000Ω or under 5Ω.
Controller sent alarms when generator current is
higher than the preset value and over current
action is selected as "Warn".
Controller sent alarms when generator current is
higher than the preset value and lasts for over the
Shut Alarm
delay value (over current action is selected as
"Shutdown").
Triggering Condition
when genset is normal running,
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