GCU -DG3 User's Guide
EGCON Co,. Ltd
13 Page
12. Automatic operation
12.1. Setting operation mode to <ATO>
12.2. When commercial electricity is in outage, engine operates after SDT time.
12.3. When commercial electricity is in outage and it is returned, engine does not start and SDT time
initializes.
12.4. When electricity is in outage, there comes output of battery "+" in 23X and it is blocked in over IDLE
SPEED.
12.5. When starter output operates and it can not reach to IDLE SPEED, engine fault will be detected and
it will pause after GCU pauses 3 times for 7 seconds.
12.6. When starter output operates and oil pressure switch is open, starter output will be blocked after OST
time.
12.7. When engine is in normal operation, RUN LAMP will be in outage.
12.8. When there is normal detection of generator power supply, ACB will be input after waiting time.
12.9. When commercial electricity is returned in normal operation of engine, engine will pause after blocking
ACB, preparing for re-outage in CDT time and cooling engine.
12.10. When commercial electricity is in outage in CDT operation, there will be input of ACB and initialization
of CTD immediately.
13. Remote Operation
13.1. Please connect 485 link line.
13.2. Please select <R-M> in operation mode.
13.3. All operations are possible in computer except in GCU.
14. Protection Control Drive test of Engine Generator
14.1. Movement when fault and alarm operate(When protection equipment is operating, RESET after pressing
buzzer pause.)
Detected items
Engine pause
86X, BUZZER
overspeed, low-voltage, over-temperature,
operation failure
BASE : GEN STOP
(Selectable)
○
Overvoltage, voltage unbalance, low and high
frequency
○
EPB
○
low-voltage, over-current, current unbalance,
OCGR, AFR
GEN RUN (Selectable)
○
Over-temperature alarm, low-voltage alarm,
low and over-voltage battery
○
14.2. EPB ( EMERGENCY PUSH BUTTOM ) Emergency pause test
(1) Confirmation of engine operation, RUN LAMP lighting of GCU, and normal RPM.
(2) Press EPB
(3) GEN FLT LAMP lights, alarm sounds, and engine pauses.
(4) Press buzzer pause, unfasten EPB, and press RESET.
