GCU -DG3 User's Guide
EGCON Co,. Ltd
12 Page
10. Signals and Marks
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GCU : GENERATOR CONTROL UNIT
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ETS : How to supply power supply to solenoid when
pauseping
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ETR : How to supply power supply to solenoid when
operating
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86X : Fault indicating relay
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6X : Operation indicating relay
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23X : Preheating relay
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52G : ACB
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SM : Operation motor
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PS : Pinion Solenoid
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88 : Operation assistance magnet
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IDLE SPEED : The lowest speed of engine without
assistance of engine operation motor
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MPU : MAGNETIC PICKUP
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RPM : Rotating speed system
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5S : pause Solenoid
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88X : Operation output relay
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EPB : Emergency pause button
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OPU : Oil pressure sensor
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OTU : Oil temperature sensor
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WTU : Water Temperature Sensor
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OPS : Oil pressure switch
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WTS : Water temperature switch
11. Manual Operation
11.1. Use of operation mode setting button, setting operation mode to <MNU>(manual mode)
11.2. Pressing operation button to operate engine
(1) Please check engine stopping method in case that only motor operates and engines does not operate.
(2) When engine is in operation, please press RPM and there will be an indication of oil pressure
measurement in OPG(For use of OPS, indication will be OPG: OFF)
(3) When actual engine speed and RPM are different, please insert measurement correctly in <5. PICK-UP
SETTING> of option setting after pausing engine.(The number of ring gear is different according to
engine manufacturing company.)
(4) Starter motor circuit is blocked in over IDLE SPEED.
(5) When starting engine, starter output is blocked as oil pressure switch operates without input of IDLE
SPEED after OST time.
(6) RUN lamp is lighted and 6X operates after operation of engine and input of IDLE SPEED signal.
(7) When oil pressure switch of OFT time is not open in IDLE SPEED, engine will pause after detection of
low voltage.
(8) When signal for engine rotating speed and oil pressure switch are not open, starter output is blocked
after 7 seconds of starter output.
(9) When oil pressure switch operates without IDLE SPEED signal, output of starter motor is
11.3. Engine pause
(1) Engine is paused when pressing pause button or setting MODE to OFF by pressing operation mode.
(2) In normal operation of engine, engine is paused when pressing EPB or engine protective circuit or
generator protective circuit(OVR) operates.
