HGM8151 Genset Parallel Controller User Manual Page 14 of 66
4.4
AUTO START/STOP OPERATION
Auto mode is selected by pressing
; a LED beside it will illuminate to confirm the operation.
Automatic Start Sequence:
1)
When
“Remote Start” is active, “Start Delay”
timer is initiated;
2)
“Start Delay” countdown will be d
isplayed on LCD;
3)
When start delay is over, preheat relay energizes (if co
nfigured), “preheat delay XX s” information
will be displayed on LCD;
4)
After the above delay, the Fuel Relay (if configured) is energized, and then one second later, the
Start Relay is engaged. The engine is cranked for a pre-set time. If the engine fails to fire during this
cranking attempt then the fuel relay and start relay are disengaged for the pre-set rest period;
“crank rest time” begins and wait for th
e next crank attempt.
5)
Should this start sequence continue beyond the set number of attempts, the start sequence will be
terminated, the first line of LCD display will be highlighted with black and Fail to Start will be
displayed.
6)
In case of successful cra
nk attempt, the “Safety On” timer is activated, allowing Low Oil Pressure,
High Temperature, under speed and Charge Alternator Failure inputs to stabilize without triggering
the fault. As soon as this d
elay is over, “start idle” delay is initiated (if conf
igured).
7)
During “start idle” delay, under speed, under frequency, under voltage alarms are inhibite
d. When
this delay is over, “warming up” delay is initiated (if configured).
8)
When “warming up delay” is
over, if generator state is normal, its indicator will be illuminated. If
voltage and frequency has reached on-load requirements, 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 alarm (alarm type
will be displayed on LCD alarm page).
Remark:
In case of “Remote Start (off Load)”, the procedure is the same, except for step NO.
8: the closing relay will NOT
be energized, generator will NOT accept load.
Automatic Stop Sequence,
1)
When the
“Remote
s
tart” signal is removed, the Stop Delay is ini
tiated.
2)
Once this “stop delay” has expired,
t
he Generator Breaker will open and the “
cooling d
elay” is
then
initiated.
After “transfer rest time”, close main
s relay is energized. Generator indicator extinguish
while mains indicator lights.
3)
During “
stop id
le” Delay (if configured), idle relay is energized.
4)
“ETS
solenoid h
old” begins, ETS relay is energized
while fuel relay is de-energized, complete stop is
detected automatically.
5)
“
Fail to stop delay
”
begins, complete stop is detected automatically.
6)
When generator is stop completely,
“
a
fter stop” delay
will be initiated. Otherwise, fail to stop alarm
is initiated (If generator is stop successfully
after “fail to
stop” alarm has initiated, “
a
fter stop”
delay will be initiated and the alarm will be removed).
