HGM400 Series Genset Controller User Manual
HGM400 Series Genset Controller ISSUE 2015-05-27 Version 1.6 Page 12 of 44
black and Fail to Start fault will be displayed.
7) In case of successful crank attempt, the “Safety On” timer is activated, allowing Low
Oil Pressure, High Temperature, Under speed, Charge Alternator Failure and
Auxiliary inputs (configured) to stabilise without triggering the fault. As soon as this
delay is over, “start idle” delay is initiated (if configured).
8) During “start idle” delay, under speed, under frequency, under voltage alarms are
inhibited. When this delay is over, “warming up” delay is initiated (if configured).
9) After the “warming up” delay, if generator status is normal, its indicator will be
illuminated. If generator voltage and frequency have reached on-load requirements,
then the generator close relay will be energized; genset will take load; generator
power indicator will illuminate and generator will enter into Normal Running status. If
voltage or frequency is abnormal, the controller will initiate shutdown alarm (alarm
information will be displayed on LCD).
Auto Stop Sequence,
1) HGM420: During normal running process, if mains normal, enters into “Mains
Normal Delay”. When mains indicator illuminates, “Stop Delay” is initiated.
2) HGM410: When the “Remote Start” signal is removed, the Stop Delay is initiated.
3) Once this “stop delay” has expired, the Generator Breaker will open and the “Cooling
Delay” is then initiated. After “Transfer Delay”, the mains close relay will be
energized; mains will take load; generator power indicator will extinguish while mains
power indicator will illuminate.
4) During “Stop Idle” Delay (if configured), idle relay is energized.
5) “ETS Solenoid Hold” begins, ETS relay is energized while fuel relay is de-energized.
6) "Fail to Stop Delay" begins, complete stop is detected automatically.
7) Generator is placed into its standby mode after its complete stop. Otherwise, fail to
stop alarm is initiated and the corresponding alarm information is displayed on LCD.
4.4 MANUAL START/STOP OPERATION
1) HGM420: Manual mode is selected by pressing the button; a LED besides the
button will illuminate to confirm the operation; Press key, select “Mode Select”,
then choose “Test Mode”. Under the two modes, press button to start the genset,
it can automatically judge crank success and accelerate to high speed running. If high
temperature, low oil pressure, over speed and abnormal voltage occur during genset
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