HGM7100N GENSET CONTROLLER USER MANUAL 
HGM7100N Genset Controller                        2020-09-10                      Version1.2                Page 10 of 47 
c)  When stop delay is over, close generator relay is un-energized; generator enters into “cooling down 
time”. After “switch transfer delay”, Mains close relay is energized. Mains is on load and generator 
indicator extinguished while mains indicator lights on.   
d)  Idle relay is energized as soon as entering “stop idle delay” (if configured). 
e)  If enters “ETS hold delay”, ETS relay is energized. Fuel relay is deactivated and whether stop or not 
is auto judged.   
f)  Then enters gen-set “wait for stop time”, and whether stop or not is auto judged. 
g)  Enters “after  stop  time” after  gen-set  stopped completely. If genset failed to stop,  controller will 
initiate fail to stop warning (if gen-set stopped after the alarms, it will enter into “after stop time” and 
fail to stop alarms will be eliminated automatically). 
h)  Enters standby status as soon as “after stop time” is over. 
4.4  MANUAL START/STOP OPERATION 
a)  HGM7120N: Manual mode is selected by pressing the button, and manual mode indicator is 
illuminated; In this mode, press    button to start the genset, it can automatically judge crank 
disconnect and accelerate to high speed running automatically. If high temperature, low oil pressure, 
over speed and abnormal voltage occur during diesel genset running, controller can effectively protect 
genset to stop (for detailed procedures please refer to No. d~i of 4.3.2 Auto start sequence). Under 
Manual  Mode,  load  breaker  won’t  transfer  automatically  and    C/O  key  should  be  pushed 
manually to enter into the C/O interface.   
b)  HGM7110N: Manual mode is selected by pressing the button and manual mode indicator is 
illuminated;  Then  press    button  to  start  the  generator,  it  can  automatically  judge  crank 
disconnect and accelerate to high speed running. If high temperature, low oil pressure, over speed 
and abnormal voltage occur during genset running, controller can effectively protect genset to stop 
(for detailed procedures please refer to No. d~i of 4.3.2 Auto start sequence). After genset high speed 
normal running, press the key    manually to close generator and generator is on-load.   
c)  Manual stop: pressing    key can stop the running genset. (For detailed procedures please 
refer to No. c~h of 4.3.3 Auto stop sequence.)   
4.5  EMERGENCY START   
Simultaneously pressing  and    in manual mode will force generator to crank. Successful 
start will not be judged according to crank disconnect conditions, operator will have to crank the starter 
motor manually; when operator decides that the engine has started, he/she should release the button 
and start output will be deactivated, safety on delay will be initiated.