NOTE:
a) Status Indicators: after crank disconnect, light is always on before ETS; light is off for other periods.
b) Gen Normal Indicator: always on when generator is normal; flash when generating is abnormal; light is off when
there is no generating.
c) Mains Normal Indicator: always on when mains is normal; flash when mains is abnormal; light is off when there is
no Mains.
4.3 AUTO START/STOP OPERATION
4.3.1 ILLUSTRATION
Press , and its indicator is illuminated, which means genset enters Auto Start mode.
4.3.2 AUTO START SEQUENCE
a) HGM7120N: When Mains is abnormal (over and under voltage, over and under frequency, loss of
phase and phase sequence wrong), it enters into "mains abnormal delay” and status page of LCD
displays countdown time. When mains abnormal delay is over, it enters into “start delay”. Or when
remote start (onload) input is active, it enters into "start delay";
b) HGM7110N: It enters into “start delay” as soon as “Remote Start on Load” input is active.
c) Start Delay countdown is shown on status page of LCD.
d) When start delay is over, preheat relay outputs (if configured), “preheat start
delay XX s” is shown on status page of LCD.
e) When preheat delay is over, fuel relay outputs for1s and then start relay outputs; if engine crank fails
during “cranking time”, the fuel relay and start relay are deactivated and enter into “crank rest time” to
wait for next crank.
f) If engine crank fails within setting times, controller will initiate fail to start shutdown signals and fail to
start message appears on LCD display at the same time.
g) In case of successful crank attempt, “safety on timer” starts. During this period, low oil pressure, high
water temperature, under speed, and charge failure alarms are disabled. As soon as this delay is
over, “start idle delay” is initiated (if configured).
h) During “start idle delay”, under speed, under frequency, under voltage alarms are inhibited. When
this delay is over, “warming up delay” starts (if configured).
i) When “warming up delay” is over, if generating state is normal, its indicator will be illuminated. If
voltage and frequency has reached on-load requirements, then the closing relay will be energized,
generator will accept load, generator power indicator will turn on, and generator will enter Normal
Running state; if voltage and frequency are abnormal, the controller will initiate shutdown alarm
(shutdown alarm will be displayed on LCD alarm page).
NOTE: when remote start (off-load) signal input is active, the auto start sequence is the same as above. Only in
item i), generator closing relay will not output, and genset is off-load.
4.3.3 AUTO STOP SEQUENCE
a) HGM7120N: when Mains return to normal during gen-set running, controller enters into Mains
voltage “Normal delay”. After Mains normal status confirmed, Mains status indicator is illuminated
and “stop delay” initiated. Or when remote start input is inactive, "stop delay" starts;
b) HGM7110N: generator enters into “stop delay” as soon as “Remote Start” input is inactive.
To Next Page
Loading...
Need help?
General
