GU301A Controller Operation Manual Harsen™
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1. Description:
GU301A generator MAN controller can use the key
switch on panel to MAN start and stop Genset,
display the running status of Genset by LED on
panel. Controller has base protect function; make
sure engine will not be damaged during running.
Controller adopts DIN72 standard enclosure, all
connections are connected by slice shape terminal,
easier and more convenient to connect, move,
maintain and replace the device.
2. Controller Panel:
The Key switch has three positions:
l “ ” stop position: in this position, controller closes all control output.
l “ ” running position: in this position, the fuel relay of controller output is active.
l “ ” start: has auto return function, Man. rotate to “ ”, start relay making output, engine start, once
engine ignition running, free from hand, key switch auto return to “ ”, start motor power off,
“ ”position is electric interlocked in controller inner, rotating form “ ” to “ ”, one time is active.
l Stop button “ ”: whenever use this button can stop engine.
Protection and LED Indicator:
l
Fuel level LED: when LED on, means fuel level too low, alarm buzzer sounds, engine will not stop.
l
Charge Fail LED: when the DC charger on engine can not normal working, LED flash, alarm buzzer
sounds, engine will not stop.
l
Overspeed LED: the lamp display external over speed device has been enabled, in order to enable this
alarm need external signal. This protection enables a delay stop period, the audible and visual alarm and
LED have been permanent enabled.
l
High Temperature LED: when engine coolant temp rises to reach the condition of engine T-sensor
switch on, LED on. This protection enables a delay stop period, the audible and visual alarm and display
LED have been permanent enabled.
l
Low Oil Pressure LED: after engine running and safe-on time over, the oil pressure of running engine
reduced by oil, when pressure reduced to engine P-sensor switch on, LED on. This protection enables a
delay stop period, the audible and visual alarm and display LED have been permanent enabled.
l
Running LED：When key switch stay at running position “ ”, LED on, fuel relay output is active.
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