Egcon GCU-DG3 User manual

GCU-DG3
User's Guide
EGCON Co.,Ltd

A manual of Generator Control Unit
GCUⓇ(GENERATOR CONTROL UNIT)
MODEL : DG3
◈ A table of contents ◈
1. Outline ·························································································································· 4
2. Product Features ······································································································ 4
3. Specifications and Functions ··············································································· 4
4. Condition of Specifications ··················································································· 4
5. Functions of Control Switch ················································································· 5
6. LCD Display ··············································································································· 6
7. Structures ···················································································································· 8
8. Preparations before use ························································································· 8
9. Connection Socket and Rating ········································································· 10
10. Abbreviation ··········································································································· 11
11. Manual Operation ································································································· 12
12. Automatic Operation ························································································· 12
13. Remote-control Operation ·············································································· 13
14. Protection Control Drive test of Engine Generator ·································· 13
15. Modification of Option Setting ········································································ 14
16. A list of Option Setting ····················································································· 17
17. Specification table of GCU-DG3 Compatibility Gauge Sensor ············ 23
18. The Number of Major Engine Ring Gear ····················································· 23
19. Mechanical Failures and Solutions ································································ 24
EGCON Co., Ltd
http://www.egcon.co.kr [email protected]
TEL: [phone] FAX: [phone]

GCU -DG3 User's Guide
EGCON Co,. Ltd
Cautions For Safety
1. Before use, please be well-informed of manual and drawing to use this product safely.
2. Please keep all cautions for safety to prevent potential accidents and dangers.
3. Cautions for safety are divided into 'warning' and 'caution' and each meaning is as follow.
warning
potential injury or death may
arise in case that violates
instructions
Caution
potential injury or product
damage may arise in case
that violates instructions
4. Meanings of picture signals indicated in the manual are as follow.
Please be careful of potential product
damages.
Please be careful of potential
electrocution.
5. Please keep the manual close to product.
1. Please do not begin wiring work when power supply is input or
driving a car to prevent electrocution and fire.
2. Please do not disassemble power supply even it is not input to prevent electrocution by
charged current in product.
3. Please do not touch with wet hands to prevent electrocution.
4. Please do not touch when sheath of electric wire is damaged to prevent electrocution.
5. Please do earthing of electric wire to prevent electrocution.
1. Please permit a regular power supply to product to prevent product
damages and fire.
2. Please be careful of input of foreign substances in product to prevent short circuit and fire.
3. Please connect subordination fitted to capacity of input and output sockets to prevent
product damages and fire.입.
4. Please do not connect wires arbitrarily to prevent product damages and fire.
5. Only technicians or educated operators are allowed to use this product to prevent human
injuries or components damages connected to this product from irrational use.
6. For this product is made of electric components, please do testing that needs high voltage
such as inner voltage test or insulation resistance test only after separation of product to
prevent components damages.
7. Please use fuse and electric wire of regular capacity to prevent fire.
8. Please hold this product tightly because it is treated for high-vibrated engine generator.
9. Please install after checking untangled parts when moving.
Cautions
Warnings

GCU -DG3 User's Guide
EGCON Co,. Ltd
4 Page
1. Outline
GCU-DG3 is a Diesel Engine Generator Controller that contains digital instrumentation function and digital
protective relay. Especially, this is easy and convenient to use that it is optimized for national
environments.
2. Product Features
2.1. Watt-hour meter [kWh]
2.2. Function of Digital protective relay (OVR, OCR, UVR, OFR, UFR).
2.3. Input of RPM, OPG, WTG, DCV, ETM gauges and OTG
2.4. Interface functions of commercial electricity and non-electricity by automatic operating signals
2.5. Functions of remote control and observation through RS485 MODBUS-RTU-typed communication
2.6. Double protection of starter motor by detection of engine rotating speed and oil pressure switch
2.7. Input of condition printing function
2.8. Input of 18 Fault History functions
2.9. Input of overspeed and overvoltage testing switch
2.10. Preheating function of engine preheating plug for small engine
2.11. Input of alert sounds
2.12. pause Solenoid burn preventive designal
2.13. Function of administrator password
2.14. Function of change from interface capacity for starter and pauseper(15A), ACB input, and block to
high capacity
2.15. Input of generator pauseper function when there perceives not MPU signal in normal operation
3. Capacity and function
3.1. Control power supply: 8~35Vdc, Consumption voltage: below 5W on standby, 360W on maximum
3.2. Speed perception: MPU detection 0~7,000Hz, 3~20Vac
3.3. Detection of commercial power: Max. 500Vac, 3 Phase 4 Wire 380/220Vac or single Phase 220Vac
3.4. Automatic operation signal: commercial power or dry contact
3.5. Fault detection:10, Alert:4
3.6. Operating electricity instrumentation and scope accuracy: 3 Phase 4 Wire
NO.
Instrumentation item
Range
Accuracy
1
L-L (Line to line Voltage)
30 ~ 500Vac
± 1%
2
L-N (Phase to phase Voltage)
10 ~ 300Vac
± 1%
3
A (Line current)
0 ~ 6.5A
± 1%
4
Hz (Frequency)
45 ~ 65Hz
± 1%
5
PF (Power factor)
-0.3 ~ +0.3
± 1%
6
kW (Active power)
0 ~ 99999kW
± 1%
7
kVAR (Reactive power)
0 ~ 99999kVAR
± 1%
8
kVA (Rated apparent power)
0 ~ 99999kVA
± 1%
9
kWh (Quantity of active power)
0 ~ 99999kWh
± 1%
10
kVARh (Quantity of Reactive power)
0 ~ 99999kVARh
± 1%

GCU -DG3 User's Guide
EGCON Co,. Ltd
5 Page
4. Circumstance
4.1. Operating Temperature: -10° ~ 40°C
4.2. Storage Temperature: -24° ~ 45°C
4.3. Relative Humidity: 0% ~ 90% Noncondensing
4.4. Vibration : amplitude-0.35mm,
frequency-0~30Hz
4.5. Maximum Operating Altitude: 3,000m
4.6. Maximum Storage Altitude: 4,500m
4.7. Installment inner area where no existence of
influences of dust and salt
5. Functions of Control Switch

GCU -DG3 User's Guide
EGCON Co,. Ltd
6 Page
(1) Operation Control Switch
(2) Controling switch for setting change
Switch for turning to the left in
operation mode
<OFF> - <MNU> - <ATO> - <R-M>
Increasing change of setting, Changing
in operation mode
Switch for turning to the right in
operation mode
<OFF> - <MNU> - <ATO> - <R-M>
Decreasing change of setting,
Changing in operation mode
Generator start switch in MNU(manual
mode)
Only in <OFF> Mode, transferring to
setting page
Generator pause switch in MNU(manual
mode)
Save after setting change
Buzzer pause switch when detecting
fault, Lamp Test Function when OFF
mode
Fault Reset Button
(3) ACB Control Switch
(4) Lamp
Blocking ACB in MNU(manual mode),
ACB block indicating lamp
Fault: lighting when commercial
electricity is abnormal, Normal:
lighting when commercial electricity
is normal
Blocking ACB in MNU(manual mode),
ACB block indicating lamp, input is
impossible when operation voltage is
low.
Operation: lighting when generation
is in operation, Fault: lighting when
there detecting all sorts of faults.
Remote: lighting when selecting
remote operation mode(GCU control
is not in operation when selecting)

GCU -DG3 User's Guide
EGCON Co,. Ltd
7 Page
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2. Indicating short alert sound and screen for 5
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inputting power supply.
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1. Start-up
2. Indication of R-S voltage, R-current, and
frequency of generator
3. Indication of RPM, OPG, WTG measurements
4. Pressing <UP> transfers to screen (7) and
pressing <DOWN> transfers to next screen.
(2)
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1. Indication of line voltage and phase current of
generator
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1. Indication of active electricity, its quantity, and
power factor of generator
(5)
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1. Indication of reactive electricity, apparent
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(6)
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1. Indication of engine's rotating speed, operation
time, battery voltage, oil pressure, coolant
temperature, and oil temperature
2. Right H of ETM<operation time> indicates 6
minutes per unit
6. LCD Display

GCU -DG3 User's Guide
EGCON Co,. Ltd
8 Page
(7)
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1. Indication of normal state of phase voltage of
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(8)
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1. Indication of (OPTION) output
2. Pressing <UP> transfers to previous screen.
3. Pressing <DOWN> transfers to screen (1).
※ Indication of OPG and WTG differs according to option setting.
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In case that OPS MODE and WTS MODE are
set to be SENSOR.
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In case that OPS MODE and WTS MODE are
set to be SWITCH.
7. Structures
7.1. Dimension : W240 * H172 * D62 (mm).
7.2. Panel Cutting : W211 * H158.
7.3. Treatment Hall : W226 * H58
7.4. Weight : 약 1kg
7.5. Appearance drawing

GCU -DG3 User's Guide
EGCON Co,. Ltd
9 Page
8. Preparations before use
8.1. Connect input and output socket of GCU-DG3 with circuit diagram 1 and 2 to circuit.
2.5sq 이상으로 밧데리 - 단자에 직접 연결
[ a circuit diagram 1 ]
Cautions
lPlease connect voltage and current of generator power supply identically
to prevent voltage indication error.
lPlease do not connect CNT socket when inputting commercial electricity
directly for detection of power outage signal.
[ a circuit diagram 2 ]

GCU -DG3 User's Guide
EGCON Co,. Ltd
10 Page
8.2. Please set option setting of GCU-DG3 fitting to generator.
Warning
If setting option differently from generator, there will arise a problem and
especially human accident may arise when detection of overspeed becomes
unoperated on account of wrong setting of [5.PICK-UP SETTING]. Please be
sure to inquire of engine generator manufacturing company the number of ring
gear.
※Alarm machine make sound when input and output sockets of GCU are different from drawing and there
will be indication of 'fault' on LCD when there are wrong parts.
▶ Option setting menu
[2. GEN-SET SETTING] --> [ 1. ENGINE TYPE ] : Engine fuel control type - ETS/ETR
[ 2. OPS MODE ] : VAL, CONT, NONUSE
[ 3. WTS MODE ] : VAL, CONT, NONUSE
[ 4. CT RATIO ] : CT setting
[ 8. COM POWER ] : How to detect power outage signal
- USED : Direct input of commercial electricity
- Input of outer signal(CNT socket)
[4. SPEED SENSOR SET] --> [1.SENSOR ] : Setting of generator speed sensor
- VOLT : Sensor of generator speed in generator voltage
- MPU : Sensor of generator speed in Magnet Pick Up
sensor
[5. PICK-UP SETTING] --> [ 1. GEAR NUMBER ] : Setting of the number of engine ring gear

GCU -DG3 User's Guide
EGCON Co,. Ltd
11 Page
9. Connection Socket and Capacity
Name of socket
Explanation
Formality
BP+, BP-
Input of control power supply
DC 8~35V , 15A
88x
Starter output
BP+ Voltage output, 15A on maximum
5x
pauseper output
BP+ Voltage output, 15A on maximum
23x
Preheating output
BP+ Voltage output, 15A on maximum
COM. Power R S T N
Input of commercial electricity
3P4W, 380/220Vac
GEN. Power R S T N
Input of generator power supply
3P4W, 380/220Vac
R-L, R-K
Input of L, K of R in generator
CT
5Aac
S-L, S-K
Input of L, K of S in generator
CT
5Aac
T-L, T-K
Input of L, K of T in generator
CT
5Aac
52TX-c, 52TX-a
ACB TRIP interface
Dry contect , AC250V, 15A (2sec)
52CX-c, 52CX-a
ACB CLOSE interface
Dry contect , AC250V, 15A (2sec)
86X-c, 86X-a
Fault indication interface
Dry contect , AC250V, 10A
6X-c, 6X-a
Engine operating indication
interface
Dry contect , AC250V, 10A
WTS
Input of over-temperature
interface
NORMAL OPEN , DC- Connection
OPS
Input of oil pressure switch
NORMAL CLOSE, DC- Connection
EPB
Input of emergency pause switch
NORMAL OPEN , DC- Connection
OCGR
Input of overvoltage relay
NORMAL OPEN , DC- Connection
AFR
Input of potential fault
NORMAL OPEN , DC- Connection
52-ON, 52-OFF
Input of ACB blocking signal
DC- 연결(Connection)
CNT
Automatic operation interface
Operation when connecting AUTO
Mode to DC
MPU+, MPU-
Input of magnet pick-up(MPU)
Shield cable must be earthing.
OPU
Input of oil pressure sensor
Use of VDO oil pressure sensor
WTU
Input of coolant temperature
sensor
VDO and DongNam company, please
refer to standard
OTU
Input of oil temperature sensor
VDO and DongNam company, please
refer to standard
486+, 485-
Communication connecting
socket
Shield cable must be earthing.
- CT L socket ( R-L, S-L, T-L) is connected. For separate use, please use after opening case.

GCU -DG3 User's Guide
EGCON Co,. Ltd
12 Page
10. Signals and Marks
lGCU : GENERATOR CONTROL UNIT
lETS : How to supply power supply to solenoid when
pauseping
lETR : How to supply power supply to solenoid when
operating
l86X : Fault indicating relay
l6X : Operation indicating relay
l23X : Preheating relay
l52G : ACB
lSM : Operation motor
lPS : Pinion Solenoid
l88 : Operation assistance magnet
lIDLE SPEED : The lowest speed of engine without
assistance of engine operation motor
lMPU : MAGNETIC PICKUP
lRPM : Rotating speed system
l5S : pause Solenoid
l88X : Operation output relay
lEPB : Emergency pause button
lOPU : Oil pressure sensor
lOTU : Oil temperature sensor
lWTU : Water Temperature Sensor
lOPS : Oil pressure switch
lWTS : 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.

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.

GCU -DG3 User's Guide
EGCON Co,. Ltd
14 Page
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- Screen when input of EPB
- Indication that pressing HORN RESET button
- Transferring to start-up screen after pressing FAULT
RESET button.
14.3. Over speed test( OVER SPEED )
▶ Detective measurement of overspeed has to be changed and tested that overspeed test is dangerous
when increasing the number of engine rotating.
▶ Default of OVER SPEED SETTING in [ 7. OVERSPEED ] of SETTING MANU [ 6. GEN-PROTECTIVE
SET ] is 2150RPM and if changing the Default to 1800RPM, then GCU will be recognized as overspeed.
Therefore it is necessary to return 1800RPM to the Default after test.
▶ Test operates through pressing overspeed test switch.(Pressing more than a second)
(1) Operate engine.
(2) Confirm RUN Lamp lighting and RPM of ECU.
(3) Recognizing overspeed, lighting GEN FLT Lamp after setting time, sounding alarm, and pausing
engine.
(4) LCD Screen indicates OVER SPEED ERROR_MESSAGE.
(5) When pressing buzzer and resetting, it will return to normal state.
14.4. Low Oil Pressure Test
(1) When oil pressure switch operates after engine starting, output of starter motor becomes blocked and
when oil pressure switch is closed, pause output of ETS TYPE becomes blocked.
(2) Setting to oil pressure switch.
1) Start engine.
2) Confirm RUN LAMP lighting and RPM of ECU.
3) Interface OPS socket.
4) Lighting GEN FLT Lamp after setting time, sounding alarm, and pausing engine.
5) LCD Screen indicates OPS ERROR_MESSAGE.
6) Reset after pressing buzzer pause button.
7) Setting to oil pressure sensor.
8) Start engine.
9) Confirm RUN LAMP lighting and RPM of GCU.
10) Interface or open OPU socket.
11) Lighting GEN FLT Lamp after setting time, sounding alarm, and pausing engine.
12) LCD Screen indicates OPS ERROR_MESSAGE.
13) Reset after pressing buzzer pause button.
14.5. HIGH WATER TEMPERATURE Test. ( WTS )
(1) Setting to over-temperature switch
1) Start engine.
2) Confirm RUN LAMP lighting and RPM of GCU.
3) Interface WTS socket.
4) Lighting GEN FLT Lamp after setting time, sounding alarm, and pausing engine.
5) LCD Screen indicates WTS ERROR_MESSAGE.

GCU -DG3 User's Guide
EGCON Co,. Ltd
15 Page
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2. Transferring to <SETTING>.
3. <PAGE> is possible only in <OFF> mode.
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1. Cursor(>) indicates <TIME SETTING>.
2. Pressing <ENTER> to enter time setting.
3. Pressing <DOWN> to transfer to <2.GEN-SET
SETTING>.
(3)
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2. Pressing <UP> transfers to above item.
3. Pressing <DOWN> transfers to below item.
(4)
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1. A cursor indicates item 8.
2. Pressing <UP> transfers to above item.
3. Pressing <DOWN> transfers to below item.
(5)
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1. This is the last page.
2. Items of options settings are all 12 and it is
impossible to do option setting when generator
is in operation.
6) Reset after pressing buzzer pause button.
(2) Setting to temperatrue sensor.
1) Start engine.
2) Confirm RUN LAMP lighting and RPM of GCU.
3) Interface or open WTU socket.
4) Lighting GEN FLT Lamp after setting time, sounding alarm, and pausing engine.
5) LCD Screen indicates WTS ERROR_MESSAGE.
6) Reset after pressing buzzer pause button.
14.6. START Fail Teat . ( OVER CRANKING )
1) This changes mode automatically and let engine not operate.
2) This unlights commercial electricity or interface CNT socket.
3) Starter output after SDT time.
4) Lighting of OCL Lamp and buzzer alarm after 3 times of 7-second start and 7-second pause.
5) LCD Screen indicates OVER CRANK ERROR_MESSAGE.
6) Reset after pressing buzzer pause button.
7) Deleting all things that let engine not operate and returning to normal state.
14.7. Other tests for fault are similar as above.
15. Modification of Option Setting
15.1. Setting to option setting mode

GCU -DG3 User's Guide
EGCON Co,. Ltd
16 Page
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Pressing < PAGE > in < OFF > transfers to
<SETTINGS> mode.
(2)
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1. Cursor(>) indicates <TIME SETTING>.
2. Pressing <DOWN> to transfer to <2.GEN-SET
SETTING>.
(3)
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1. Pressing <ENTER> transfers to detailed item of
<GEN-SET SETTING>.
2. The number of detailed items of <GEN-SET
SETTING> is 8.
(4)
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1. Pressing <DOWN> transfers to <2.OPS MODE>.
(5)
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1. Pressing <ENTER> lets a cursor locate in front
of setting value.
(6)
2
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1. Black and square-shaped cursor locates in front
of setting value.
2. Pressing <UP> or <DOWN> changes setting
value..
(7)
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1. This is a screen that value is changed to
<CONT>.
2. Pressing <ENTER> saves the value.
3. A cursor locates at the front of item.
(8)
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1. Pressing <UP> or <DOWN> here may transfer to
another item.
(9)
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1. Pressing <PAGE> to transfer to above item.
2. This is the transferred screen to the above item.
3. Pressing <PAGE> exits option setting.
15.2. After setting value of option, setting value of <GEN-SET SETTING> appears and method to set is all
same.

GCU -DG3 User's Guide
EGCON Co,. Ltd
17 Page
(10)
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1. This is the returned screen of measurement
screen after exiting option setting.
(1)
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1. Inputting DC power supply makes a brief buzzer
sound, indicates on left screen for 5 seconds,
and transfers to next screen.
(2)
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.
.
1. For <PowerON_PW> is set to <USE>, there will
be a screen for password.
2. Pressing <ENTER> lets a cursor locate at the
first box for insertion.
(3)
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1. This is the screen that a cursor locates at the
first box.
2. Pressing <UP> or <DOWN> to insert numbers.
3. Pressing <ENTER> transfers to next box.
(4)
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1. After filling all numbers, press <ENTER> to
transfer to the start-up screen.
(5)
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1. If password is wrong, there will be a message
of <FAIL Press ENTER> as left, but screen does
not transfers to the start-up.
(6)
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1. Press <ENTER> to insert numbers again.
2. Inserted password become deleted and the
cursor will locate at the first box.
15.3. Password input when setting <PowerON_PW> to <USE>.
15.4. How to insert password when setting <Setting_PW> to <USE> is same as above. However, if pressing
<PAGE> when inserting wrong password transfers to start-up screen.

GCU -DG3 User's Guide
EGCON Co,. Ltd
18 Page
NO.
Menu
Explanation
Range
Default
1
SDT
Waiting time for starting
0~60sec
3 sec
2
CDT
Waiting time for pausing
0~60min
5 sec
3
OST
Blocking time of starting output after pressing oil
pressure switch
0~60sec
5 sec
4
OFT
Waiting time for detection of oil pressure
0~60sec
5 sec
5
UDT
Waiting time for detection of low-voltage
0~60sec
5 sec
6
STOP
Output time for ETS-typed pause
0~60sec
5 sec
7
MAX CRK_T
Starting output time
0~60sec
7 sec
8
ACB OPEN_T
Waiting time for ACB blocking in automatic mode
0~60sec
5 sec
9
ACB CLOSE_T
Waiting time for ACB input in automatic mode
0~60sec
5 sec
10
B_LED ON
Unlight time after lighting LCD backlight
0~60min
2 min
11
BZ STOP_T
Blocking time of alarm sound
0~60min
2 min
NO.
Menu
Explanations and setting scopes
Default
1
ENGINE TYPE
ETR : A type that engine operates when power supplies to
oil solenoid.
ETS : A type that engine pauses when power supplies to
oil solenoid.
ETR
2
OPS MODE
(Detection of oil
pressure)
SWITCH : Switch use with fault detecting type
SENSER : Sensor use with fault detecting type
NONUSE : Not using fault detecting type
NONUSE
3
WTS MODE
(Detection of
water
temperature)
SWITCH : Switch use with fault detecting type
SENSER : Sensor use with fault detecting type
NONUSE : Not using fault detecting type
NONUSE
4
CT RATIO
CT ratio setting (5/5A~5000/5A)
50/5A
5
START RPM
RPM setting for starting output (400~800RPM)
600RPM
6
START OIL_P
Setting of oil pressure of starting output (3~6bar)
3.0bar
7
COM UVR
Voltage setting of commercial power outage checking
170V
8
COM POWER
USED : Checking commercial power outage with outage
signal
NONUSE : Using outage signal as input of CNT socket
USED
16. SETPOINT
16.1. TIME SETTING
16.2. GEN-SET SETTING

GCU -DG3 User's Guide
EGCON Co,. Ltd
19 Page
16.3. GEN-PROTECTIVE SET
NO.
Menu
Explanations
Setting Scope
Default Value
1
GEN UVR
Detective setting of low-voltage
70~ 220 Vac
180.0 Vac
2
OPE. UVR
Waiting time for low-voltage
detection
0 ~ 59 sec
5 sec
3
GEN OVR
Setting of over-voltage detection
100~ 300 Vac
235.0 Vac
4
OPE. OVR
Waiting time for over-voltage
detection
0 ~ 59 sec
1 sec
5
GEN OCR
Setting of over-current detection
2.0 ~ 8.0
5 A
6
OPE. OCR
Waiting time for over-current
detection
0 ~ 59 sec
5 sec
7
OVER SPEED
Setting of overspeed
1000~2500 RPM
2150
8
OPE SPEED
Waiting time for overspeed
detection
0 ~ 59 sec
0 sec
9
Wrn OIL_P
Setting of low-oil alarm
1.0 ~ 9.9 bar
3.0 bar
10
Err OIL_P
Setting of low-oil fault
1.0 ~ 9.9 bar
1.5 bar
11
OPE OIL_P
Waiting time for low-oil fault
0 ~ 59 sec
1 sec
12
Wrn WATER
Setting of over-temperature alarm
40 ~ 110 ℃
90 ℃
13
Err WATER
Setting of over-temperature
detection
40 ~ 110 ℃
100 ℃
14
OPE WATER
Waiting time for over-temperature
detection
0 ~ 59 sec
5 sec
15
HIGH BATT
Setting of battery overvoltage
20 ~ 40 Vdc
30 Vdc
16
LOW BATT
Setting of battery low-voltage
08 ~ 25 Vdc
08 Vdc
17
OPE BATT
Waiting time for battery overvoltage
and low-voltage detections
0 ~ 59 sec
5 sec
18
CURR UNBAL
Setting of detective scope of
current unbalance
10 ~ 99 %
30 %
19
OPE C_UNBAL
Waiting time for detection of
current unbalance
0 ~ 59 sec
5 sec
20
VOLT UNBAL
Setting of detective scope of
voltage unbalance
10 ~ 99 %
30 %
21
OPE V_UNBAL
Waiting time for detection of
voltage unbalance
0 ~ 59 sec
5 sec
22
Gen Freq MAX
Setting of over-frequency detection
50 ~70 Hz
70 Hz
23
Gen Freq MIN
Setting of low-frequency detection
45 ~ 60 Hz
45 Hz
24
OPE Freq
Waiting time for over-frequency
and low-frequency detection
0 ~ 59 sec
5 sec

GCU -DG3 User's Guide
EGCON Co,. Ltd
20 Page
16.4. SPEED SENSOR SET
NO.
Menu
Explanation
Default
1
SENSOR
VOLT : Speed sensor in generator
voltage
MPU : Speed sensor in Magnet
PickUp
VOLT
2
DISPLAY
Indicative unit for rotating speed
(RPM) Presently not used
16.5. PICK-UP SETTING
NO.
Menu
Explanation
Setting Scope
Default
1
GEAR NUMBER
The number of MAGNET PICK-UP
SENSOR per rotating of generator(The
number of ring gear)
0~ 255 EA
121 EA
16.6. PASSWORD SETTING
NO.
Menu
Explanations and Setting Scope
Default
1
Setting_PW
USE : Using password in option setting
NONUSED : Not Using password in option setting
NONUSED
2
PowerON_PW
USE : Using password at the first start-up
(All operations are useless if not knowing password)
NONUSED : All operations are possible without password
NONUSED
3
Password
_ _ _ _ : Changing password with pressing [DOWN]
1111
4
VALUE
DEFAULT
Yes : Initializing all values of option setting
NO : Not initializing all values of option setting
NO
16.7. P-RELAY ERROR TYPE
NO.
Menu
Contents
Explanations and Setting Scope
1
TYPE
Selection of
using relay
functions
INT. VAL - Using relay functions such as INT. VAL - UVR, OVR,
OCR
NONUSE - Not Using relay functions(only for detection of fault)
Default : (INT. VAL)