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GU601A Controller Operation Manual

1

The clarification of no tation used within th is manual:

WARNING:A WARNING indicates a potentially hazardous situationwhich, if not avoided, could result in death, seriouspersonal injury or property damage.

CAUTION:

A CAUTION indicates a potentially hazardous situationwhich, if not avoided, could result in damage toequipment or property.

NOTE:A NOTEprovides other helpful information that does notfall under the warning o r caution categories.

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WARNING:Read this entire manual pertaining to the work to beperformed before installing, operating, or servicing thiscontroller. Practice all plant and safety instructions andprecautions. Failure to follow instructions can causepersonal injury and/or property damage.

The engine or other type of prime mover should beequipped with an overspeed shutdown device to protect

against runaway or damage to the prime mover withpossible personal injury, loss of l ife, or property damage.

The overspeed shutdown device must be totallyindependent of the prime mover control system. Anovertemperature or overpressure shutdown device mayalso be needed for safety, as appropr iate.

CAUTIONBATTERY CHARGINGTo prevent damage to a contro ller that uses an alternator orbattery-charging device, make sure the charging device isturned off before disconnecting the battery from thesystem.

Controllers contain static-sensitive parts. Observe thefollowing precautions to prevent damage to these parts:

Do not disassemble the rear back of contro ller and touchthe components or conductors on a printed circuit board.

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Contents

1. Descr ip tion ...........................................................................................4

2. The Outline Dimensional Drawings and Wirings of Controller ......5

3. Operation Panel ............................ .............................. ................................8

4. Instal lat ion Guide ........................................................................................10

5. Cont rol and Operation Instruct ion ............................................................11

6. Measure and Display Data ......................................................................16

7. Warni ng and Shutdown Alar m ......................................................16

8. Paramet ers Sett ing ..........................................................................20

9. LCD Displ ay and Menu Syst em....................................................24

10. Preparation before Start the Controller..................................................27

11. Troubleshooting .......................................................................................28

12. Technical Parameters.................................................................................30

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1. Descript ion

GU601A is an auto control and protection module of generator. The control modes

of manual or auto are selectable by buttons on panel. Manual starts or stops

Genset under manual mode by buttons on panel. Auto starts or stops Genset

under auto mode by remote switch input signal. The module is adopted LCD, which

displays running status and operating parameters of generator. The main

characteristics as following:

The core adopts MPU.

Flexible configure running parameters via buttons and LCD on panel.

Measure and display parameters, such as frequency and voltage for generator;

battery voltage; oil pressure, coolant temp and running hours for engine.

The fuel mode (NC or NO) of engine can be set by procedure.

Has five relays control output, others can be defined by user except the

outputs of fuel and start control are fixed.

5 channels for switch input, others can be defined by user except the inputs of

oil pressure and coolant temperature are fixed.

Internal kinds of P-sensor and T-sensor for user choice.

Optional internal communication interface can be used to configureparameters via PC.

All connections are connected by pin-like and locked up terminal, easier and more

convenient to connect, move, maintain and replace the device.

This manual only suitable for GU601A generator automatic controller, user must

carefully see this manual first.

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2. The Outline Dimensional Drawings and Wirings of Controller

2.1 Following Details:

Operation Panel W88mmH75mm

Install Cutout W78mm H65mm

Thickness D48mmunconnected

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2.2 Connect ing Terminals:

Pin no. Function Description Signal Dim

1 phase voltage input 1mm

2 neutral0-300Vac

1mm

3 P-sensor or switch signal P-sensor (

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2.3 Typical Wiring Diagram

(12/24V)

LOAD

G

U601A

CONFIG.

OUTPUT

FUEL

C

RANK

DC

POWER

OILPRESSURE

COOLANTTEMP.

CONFIG.

INPUT

A fuse with the rating of 10A shall be provided external to the equipment.

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3. Operation Panel

The whole operation panel includes 3 sections: LCD displays measuringparameters, indicator light for common failure, and control buttons and selectbuttons for control modes.

LCD cycle displays different measuring parameters. When failure occurs LCDdisplays corresponding sign. LCD has background-light function so that operatorcan clearly read information whenever at day or night. After pressing any buttons

the background-light will auto turn off in a certain time.

LCD display and its control buttons provide a friendly operation interface foroperator, which makes operator conveniently read information and set runningparameter.

3.1 Contro l buttons and LED

Function Description Tag

Enter into submenu/modify/confirm modification/scroll menu

AUTO button/ LED

The button is used for setting auto-operation mode. When

controller is running in AUTO mode, LED above the button lights

up. According to the remote start signal is active or not, to control

generator start or stop.

MAN button /LED

The button is used for setting manual-operation mode. When

controller is running in MAN mode, LED above the button lights

up. The controller controls generator start and stop by pressing

START and STOP buttons.

START/ VALUE ASCEND + button for parameters setting

The button is used for MAN start Genset. When controller is

setting in MAN-operation mode, press this button can start

generator. When enter in parameters setting operation, this button

is used for value ascend.

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STOP/ RESET / VALUE DESCEND

The button is used for MAN stop Genset. When controller issetting in MAN-operation mode, continuously press this buttonmore than 2s can stop generator.

If occur failure output, light press this button, the shutdown lockoutcan be cleared by controller.

When enter in parameters setting operation, this button is used forvalue descend.

FAILURE LED

When controller occur warning, failure LED flash.When controller occur shutdown alarm, failure LED lights up.

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5. Control and Operation Instruction

The controller has 2 kinds of control mode: AUTO mode and MAN mode.

5.1 Operation Mode Setting:

Operation Description

Press AUTO button (continue 2s), LED

above the button lights up; controller is

running in AUTO mode.

Press MAN button (continue 2s), LED

above the button lights up; controller is

running in MAN mode.

NOTE: Only can select 1 mode from above 2 modes.

5.2 AUTO Control Process:

The controller is running in AUTO mode.

First of all, define one of the configurable inputs as Remote Start Signal.

When detects that the remote signal is active, the controller implements following procedure:

Start-delay timer begins count, when delay time out, if preset preheat function,preheat relay making output, the timer for preheat time begins count, when timeexpired, fuel relay takes action, the fuel solenoid of engine opened, after 300ms delay,the start relay making output, the start motor of engine switches on power, begincrank, when the running speed of engine is reach to the crank disconnect speed,controller stop start-output, the safety-on delay time begin count, before time out, ifcontroller detects that parameters of Genset such as voltage, frequency, oil pressure,coolant temperature are normal, and no other failure, means Genset successfullystart and running normal, LCD displays corresponding measuring parameters.

NOTE: When remote signal is active, the timer for start-relay begins

count. During counting, if remote start signal is inactive, thestart-relay stop counting immediately, controller stop startprocedure and related output, recover to original standbystatus.

During the period of crank or idle, if remote start signal isinactive, controller stop start procedure and related output,recover to original standby status.

1 configurable input must be set as Remote Start Signal, orwill not process start procedure under AUTOmode.

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NOTE: During crank, engine ignition, when the output frequency of

alternator is reaches to preset frequency, start motordisconnect power. Or the start motor is disconnected powerby one of the following reasons: the output voltage ofalternator is reaches to 80% rating voltage; start time over.After the low oil pressure switch of engine opening, delaycounting time out.

Controller can not implement idle procedure, when it detectsthat the frequency of generator is reached the preset level, or

the oil pressure switch of engine is open.

CAUTION

Since the crank disconnect signal of engine is from the output voltagefrequency of generator, must make sure the output voltage is greaterthan controller measurable voltage during the period of generatorcrank attempt, to avoid the possible damage on start motor.

If preset idle function, simultaneously the start relay making output, the relay whichis defined for idle function making output, the timers for idle delay and safety-ontime delay begins count together, the shorter delay will be displayed first, thefollowing procedure as above.

During crank counting time, engine can not igniting, and controller will not output start

signal during crank intermission, and the Fail to Start Sign in LCD flashing at that time.Once crank intermission time out, controller will attempt to restart engine again.

Above start phenomena repeat again and again until engine successful ignition andor reach the preset crank times. If any stop failures occur during start process,controller stops control output immediately, until failure eliminated and reset, then itcan be operated again.

Fail to start: When above start phenomena repeat again and again and over thepreset crank times, controller will stop control output, failure LED lights up, and LCDstatus bar displays Fail to Start Sign.

CAUTION

If occur start failure, operator must check the whole Gensetsystem to make sure failure reason, only after eliminating thefailure can press STOP/RESET button to unlock fault-lockedstatus, and restart the Genset.

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The process of generator shutdown:

When remote signal is not active, the timer for cooling delay begins counting, when

time expired, the fuel relay of controller takes action, breaking fuel solenoid

immediately, generator stop and enter into standby status.

Fail to stop: When cooling-delay expired, the fuel relay of controller takes action,the timer for fail to stop delay begins counting, when time expired, if controller detectsthat the voltage and frequency of generator is greater than the internal setting value,or the oil pressure of engine is greater than the internal setting value, failure LED

for Fail to stop lights up, LCD displays Fail to stopicon.

NOTE:When occur fail to stop, except failures were removed and reset orcan not restart generator.

5.3 The produce of MAN cont rol:

The controller is running in MAN mode.

The process of generator start supply:

Press START button, fuel relay takes action, the fuel solenoid of engine opened,after 300ms delay, the start relay making output, the start motor of engine switcheson power, begin crank, when the running speed of engine is reach to the crank

disconnect speed, controller stop start-output, the safety-on delay time begin count,before time out, if controller detects that parameters of Genset such as voltage,frequency, oil pressure, coolant temperature are normal, and no other failure,means Genset successfully start and running normal, LCD displays correspondingmeasuring parameters.

5.4 The start and stop processes of engine, which fuel solenoid is N. O. type:

Start contro l process:

When start running, the fuel relay of controller will not close, fuel solenoid no power,means the electromagnet of solenoid no action.

Stop control process:

When controller starts at stop control process, the fuel relay of controller is close,

fuel solenoid on load, fuel solenoid take action, engine begins stop. After delay(same as fail to stop delay) fuel relay breaking, disconnect the power of fuelsolenoid.

Other control process same as engine fuel solenoid is N. C. type.

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5.5 Idle function:

When one of the configurable outputs is defined as Idle, controller has idle controlfunction immediately.

The idle control flow reference to the flow chart for start and stop.

5.6 Preheat func tion :

When one of the configurable outputs is defined as Preheat, controller obtainspreheat control function immediately. Controller has 3 optional preheat control modes:

Mode 1 during preheat time, preheat relay making output.Mode 2 during preheat time, preheat relay making output until successfully

ignition.Mode 3 during preheat time, preheat relay making output until safety-on

delay expired.

No matter setting at which mode, during crank attempt the preheat relay will notmaking output.

The idle control flow reference to the flow chart for start and stop.

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5.7 Flow chart for start and stop

T1start delay

T2crank time

T3preheat time

T4safety-on time

T5idle time

T6fail to stop delay

NOTE:

When T4>T5 and engine is under the period of idle, the protection

of low oil pressure will not operation; When T4

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6. Measure and Display DataThe AC phase voltage of generator VacGenerator frequency HzEngine speed RPM(signal from generator frequency)Battery voltage VdcEngine running hours hEngine coolant temperature /F(signal from engine T-sensor)Engine oil pressure BAR /PSI (signal from engine P-sensor)

7. Warning and Shutdown Alarm

7.1 Warning

(NOTE:Warns are non-critical failure conditions and do not affect the operation ofthe generator system, they serve to draw the operators attention to an undesirablecondition and remove it to make sure system continuous running. When warnsoccur, the status indicator light flash, but failure will not be locked and the unit willnot shutdown. Once failure removed warning indicator auto turn off.)

Warning/ Description LCD Display

Fail to Charge: if controller detects that voltagehas fallen below the low battery warning valuefrom the excitation contact of auxiliary AC chargerafter the safety-on timer has expired, failureindicator light flash, LCD displays Fail to Chargeicon.Battery Low Voltage: if controller detects thatbattery voltage has fallen below the low batterywarning value, failure indicator lights up. Forexample, low battery warning value preset as:23.6V, when battery voltage falls below this value,LCD flashing low value icon.Battery High Voltage: if controller detects thatbattery voltage has exceeded the high batterywarning value, failure indicator lights up. Forexample, high battery warning value preset as:28.2V, when battery voltage exceeds this value,LCD flashing high value icon.

Low Oil Pressure: if controller detects that theengine oil pressure has fallen below the low oilpressure warning value after the safety-on timerhas expired, failure indicator light flash. Forexample, low oil pressure warning value presetas: 2.20BAR, when engine oil pressure falls belowthis value, LCD flashing low value icon.

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High Temperature: if controller detects that

engine coolant temperature has exceeded the

high coolant temperature warning value, failure

indicator lights up. For example, high coolant

temperature warning value preset as: 95,

when engine coolant temperature exceeds this

value, LCD flashing high value icon.

Overspeed: if engine speed exceeds the

overspeed warning value, failure indicator lightsup. For example, overspeed warning value preset

as: 1600RPM, when engine speed exceeds this

value, LCD flashing high value icon.

Underspeed: if engine speed falls below the

underspeed warning value after the safety-on

timer has expired, failure indicator lights up. For

example, underspeed warning value preset as:

1440RPM, when engine speed falls below this

value, LCD flashing low value icon.

High Voltage: if controller detects that the voltage of

generator any phase output has exceeded the high

voltage warning value after the safety-on timer has

expired, failure indicator light flash.For example, rating

voltage preset as: 220A, high voltage warning value

preset as: 115%, when the generator output voltage

exceeds this value, LCD flashing high value icon for

corresponding phase.

Low Voltage: if controller detects that the voltage of

generator any phase output has fallen below the low

voltage warning value after the safety-on timer has

expired, failure indicator light flash. For example,

rating voltage preset as: 220A, low voltage warning

value preset as: 90%, when the generator output

voltage falls below this value, LCD flashing low value

icon for corresponding phase.

Auxi liary Warning: define a configurable switch as

warning input, when the input signal is active, failure

indicator light flash.LCD flashing Aux. warning icon.

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Note:

To make warnings of low oil pressure and high coolant temperature

active, must use P-sensor and T-sensor, when only use oil pressure

switch and temperature switch, both warnings inactive.

Caution:Under the period of safety-on delay, some warnings are inactive,the safety-on time must be carefully and properly set to makeGenset has full protection.

7.2 Shutdown Alarm

(NOTE: shutdown failures immediately lock system and stop generator, it only canoperate controller again after removing failures and press rest button to unlock)

Failures/ Description LCD Display

Fail to Start: if engine does not fire after the

preset number of crank attempts has been made,

means fail to start, failure LED lights up. LCD

displays fail to start icon.

Fail to Stop: if engine does not stop after the

stop delay expires, failure LED lights up. LCDdisplays fail to stop icon.

Emergency Stop: define a configurable switch as

emergency stop input, when the input signal is

active, controller immediately stop all relay control

output except alarm, failure LED lights up. LCD

displays emergency stop icon.

Low Oil Pressure: if controller detects that the oil

pressure level still falls below oil pressure alarm

value or oil pressure switch is closing after the

safety-on timer has expired, engine stop

immediately, failure LED lights up.LCD displays lowoil pressure icon.

High Temperature: if controller detects that engine

coolant temperature has exceeded the high coolant

temperature alarm value or temperature switch is

closing, engine stop immediately, and failure LED

lights up.LCD displays high temperature icon.

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Overspeed: if controller detects that engine speedexceeds the overspeed alarm value, engine stopimmediately, and failure LED lights up.LCD displaysoverspeed icon.

Auxi liary Failure: define a configurable switch as

failure input, when the input signal is active, failure

LED lights up.LCD displays Aux. warning icon.

Note:

Engine speed signal is from generator output voltage

frequency, is used for control and failure protection

parameters, to the convenience of user, some data

expressed by RPM, RPM=HZ*60/pair of poles.

The generator occur failure during its operating: stop

immediately no delay after occurred high temperature, low oil

pressure and overspeed; protection is active whatever has

idle function or not when low oil pressure occurs during

coolant delay.

Caution:Under the period of safety-on delay, the protection of low oil pressurefailure is inactive, to avoid non oil start engine, must make sure the oilis normal and the safety-on time shall be carefully and properly set forthe first commissioning.

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8. Parameters Setting

8.1 System Parameters:

NO. Items Preset Value Range

1.1 voltage ratio 1.0 1.0-100.0

1.2 rating voltage 220 45-9999Vac

1.3 begin control mode 0 0-1 / 0 (AUTO) /1 (MAN)

1.4 oil pressure units 0 0-2(0-BAR,1-PSI, 2-all displayed)

1.5 temperature units 00-2

(0-,1-,2- all displayed)

1.6communicationaddress

1 1-247

1.7 resume to default

1.8 on-line update

1.9 page scroll time 0S 0-10S /0 (not used)

NOTE:Begin Control Mode is used for the setting the begin controlmode of controller when controller switches on power. When the

parameter set at 1 and controller switches on power, controllerwill auto operating in AUTO control mode; When the parameter setat 0 and controller switches on power, controller will autooperating in MAN control mode.

NOTE:Generator running speed is set by pair of poles, RPM=HZ*60/ pairof poles, when rating frequency is 50 HZ, if pole pairs set at 2,the running speed is 1500 rpm, if pole pairs set at 1 , the runningspeed is 3000 rpm.

8.2 Generator Parameters:


2.1 V low alarm 0 20-200% / 0 (not set)2.2 V low warning 90% 20-200% / 0 (not set)

2.3 V high warning 115% 20-200% / 9999 (not set)

2.4 V high alarm 9999 20-200% / 9999 (not set)

2.5 Failure delay 10S 0-600S

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8.3 Engine Parameters:


3.1 pair of poles 2 1-4

3.2 fuel mode 0 0-1 / 0(NC) /1 (NO)

3.3 T-sensor mode 3 0-10 / 0 (not use)

3.4 P-sensor mode 3 0-11 / 0 (not use)

3.5 start delay 10S 0-300 S3.6 crank attempt 3 times 1-10 times

3.7 crank time 8S 0-30 S

3.8 crank rest 15s 0-300 s

3.9 crank disconnect 300RPM 1-9999 RPM

3.10 preheat delay 3S 0-300 S

3.11 preheat mode 1 1-3

3.12 idle delay 0 0-9999s

3.13 safety on delay 10S 0-600S

3.14 cooling delay 300S 0-600 S

3.15 fail to stop delay 20S 0-60S

3.16 underspeed alarm 0RPM 0-9999 RPM / 0 (not set)

3.17 Underspeed warning 1440RPM 0-9999 RPM / 0 (not set)

3.18 overspeed warning 1600 RPM 1-9999 RPM / 9999 (not set)

3.19 overspeed alarm 1710 RPM 1-9999 RPM/ 9999 (not set)

3.20 low oil-press alarm 1.4BAR 0-45.0 BAR

3.21 low oil-press warning 2.2BAR 0-45.0BAR

3.22 high temp warning 95 70-320 / 9999 (not set)

3.23 high temp alarm 105 70-320 / 9999 (not set)

3.24 low battery warning 8.0V 1-25.0V / 0 (not set)3.25 high battery warning 28.0V 1-35.0V / 99.9 (not set)

3.26 charge V warning 8.0V 1-25.0V / 0 (not set)

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8.4 Input and Output Setting

4.1 configurable input 1 8 0-12 (define code as follows)



4.4 input 1 delay 2S 0-60S



4.7 configurable relay 1 2 0-80 (define code as follows)



NOTE: configurable input delay is only for 1 to 4 codes in 8.7.

8.5 Calibration Menu

5.1 Gen voltage V1 0 10.0

5.2 oil pressure 0 10.0

5.3 coolant temp 0 10.0

5.4 battery voltage 0 10.0

8.6 The optional items for PT-sensor:

Code The brand model of P-sensor The brand model of T-sensor

0 not used not used

1 close for low oil pressure close for high temperature

2 open for low oil pressure open for high temperature

3 VDO 10 bar VDO 120 degrees C

4 KD 10 bar KD KD 120 dc KD

5 YG962 1J1M ZJ WGJ 900131 ZJ

6 KP 6 bar KP KP 130 dc KP

7 3846 N-010-B2 DX 21YB054 DX

8 3967251 KL 3967250 KL9 MHI 10 bar SL MHI 98 dc SL

10 Datcon 10 bar configurable (base on sensor data)

11 configurable (base on sensor data)

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Note:

When controller leave factory, the optional model and function of

P-sensor and T-sensor have been preset as above table, if the

used sensor not listed in table, user can select the item of

configurable, read-in sensor parameters to controller by software.

8.7 The optional items for configurable inpu t:

Code Optional Funct ion NOTE

0 not used1 warning (active immediately) low level is active

2 alarm (active immediately) low level is active

3warning(active after safety-on delay)

low level is active

4alarm(active after safety-on delay)

low level is active

5 low oil pressure low level is active

6 high temperature low level is active

7 emergency stop low level is active

8 remote start low level is active

9 reserved low level is active

10 reserved low level is active

11 low fuel level low level is active12 lamp test low level is active

8.8 The optional items for configurable output:

Code Failure Type Define Code Failure Type Define

0 Not used 1 Over current tripping

2 Alarm 3 Warning

4 Idle 0 (NC) 5 Preheat mode

6 Speed up 7 Reserved

8 Fuel pump control 9 Running

10 System in AUTO mode 11 Reserved

12 System in MAN mode 13 Reserved

14 Idle 1 (NO) 15 Reserved

16 Reserved 17 Fail to start

Note:Define one of the configurable outputs as Speed Up, aftercontroller detects that engine is successfully crank, speed up relaymaking output; if has idle function, then speed up relay makingoutput after idle delay expired.

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9. LCD Display and Menu System

Adopt TN type LCD displays data information, and LCD has background-light

function, after pressing any buttons the background-light will auto turn off in a

certain time. In normal operating status, auto scroll page to cycle display each

measuring data, also can press scroll to view each measuring data, when

failure occurs, LCD flashing the corresponding failure icon.

Continuously press button 2s in any page enter into setting status, you canuse or in the same grade menu to scroll page at that moment, press

again enter into submenu, select the desired item to be modified, press

or enter into modify, displays 0 0 0 0 when prompt key in password,

you can use or to modify value at that moment, press move to

modify lower value, the first value will be displayed as asterisk * after moved to

right, press again for exit after the password was set to 2213, and

parameters have been changed, otherwise prompted key in password again,

Continuously press button 2s after modification can exit the setting status.

9.1 Static LCD disp lays:

When controller standby:


Controller only displays detected batteryvoltage and running hour, LCD displays:

When controller normal running, cycle displays each measuring data:

(AC voltagefrequencyrunning houroil pressurecoolant temperaturebattery voltagespeed)

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9.2 Setting runn ing parameters

For example: (setting VT rate at 2.0)


Continuously press 2s, enter into parameters setting menu,then LCD display:

press , then LCD display:

press , then LCD display:

Press or key in modified password: (2213),press ,then LCD display:

Press or change parameter, change at 2.0, then LCDdisplay:

After changing press to confirmthen press and ,

then LCD display:

Press again for quit, or continuously press more that 2salso can quit:

For example: (setting controller crank attempt at 2)


Continuously press 2s, enter into parameters setting menu,then LCD display:

Press 19 times, then LCD display:

Press again, then LCD display:

Press then LCD display:

Press or key in modified password: (2213),press ,then LCD display:

Press or change parameter, change at 2, Press

confirm change, and then continuously press 2s can quit

parameters setting menu.

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For example: (resume all parameters of controller to factory default)


Continuously press 2s, enter into parameters setting menu,

then LCD display:

Press 6 times again, then LCD display:

press , prompt enter password, then LCD display:

Press or key in modified password: (2213),press ,

then LCD display:

Press recover default, continuous press 2s can quit

parameters setting menu.

For example: (set controller as online program mode)


Continuously press 2s, enter into parameters setting menu,

then LCD display:

Press 7 times, then LCD display:

Press 1 times again, then LCD display:

Press or key in modified password: (3132)ess , then

LCD display:

Press again enter into program mode, in this mode the

power supply must be make sure normal, after connecting to the

communication line, using special program software correctly

duplication, controller will auto repeat reset action, or will not quit

this status, until switch off plant supply.

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10. Preparation before Start the Control ler

10.1 Make sure controller is fixed well and its install ambient meet requirements.

10.2 Confirm all wiring connections of controller are meet electric specification andcorresponding to 2.3 typical wiring diagram. Especially need confirm DCsupply source has added fusing element to protect, and correct polarity.Otherwise, it maybe damage controller.

10.3 We recommend mounting E- stop button in external, connecting E-stopsignal input terminal to the N. O. contact of E- stop button, and anotherterminal of contact connected to the negative of battery source.

10.4 Switch on DC plant supply, make sure the preset parameter meet practicalcondition, such as P-sensor mode, T-sensor mode, etc.

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11. Troubleshoot ing

Failure Phenomenon Failure Eliminate

Genset no

crank

No crank attempteither in MANmode pressSTART buttonor in AUTO

mode the remotestart signal isactive.

1. Check failure LED, or check LCD display toconfirm has failure display or not.

2. Check DC voltage on controller no. 14terminal, if no voltage, check related circuitryfuse. Such as low voltage, use charger chargingbattery, restart after battery fully charging.

3. Check DC voltage on controller no. 9

terminal when crank, if no voltage, needchange controller.

4. Check starting motor normal operating or not,if not change it.

Diesel fail

o start

Controller LCDdisplay: fail tostart, dieselrotates but cannot start or dieselstop after startoperating.

1. Check fuel level.2. Check DC voltage on controller no. 8

terminal, if no voltage need change controller.3. Check the connection of fuel control magnet

and the voltage on magnet.4. Check fuse on the side of alternator.5. Both check fuel manifold and filter jam or not.6. If has white smoke release from exhaust

system, means fuel has gone into engine, butdiesel not start. Please refer to DieselManual for further check.

7. If low ambient temp and has heat startfunction, please preheat first.

8. Once failure removed, press RESET buttonto reset control system.

Diesel

high

temp

shutdown

Controller LCD

display high temp

failure icon,

common failure

LED lights up.

1. Check the mode of controller T-sensorcorrectly set or not, if error need reset.

2. Check radiator jam or not.3. Check fan belt loose or tighten.4. Check if ambient temperature meets

generator usage range.5. After diesel cooling, check coolant position, do

not add a great deal of coolant into diesel before itis not cooling, or will cause serious damage to it.

6. Refer to Diesel Manual7. Once failure removed, press RESET button

to reset control system.

Low oil

pressure

shutdown

Controller LCDdisplay low oilpressure failureicon, commonfailure LED lightsup.

1. Check the mode of controller P-sensorcorrectly set or not, if error need reset.

2. Check fuel level, if oil not enough, add oil.3. Refer to Diesel Manual4. Check oil pressure switch by test meter, if

any problems change it.5. Once failure removed, press RESET

button to reset control system.

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Diesel

overspeed

shutdown

Controller LCD

display overspeed

failure icon,

common failure

LED lights up.

1. Check governor speed shaft moved or not,if moved correct it.

2. If installed electronics governor, check iflevel shaft can freely move, correct it ifnecessary.

3. Refer to Diesel Manual.4. Once failure removed, press RESET

button to reset control system.

Under-

speed

shutdown

LCD display low

frequency failure

1. Check the frequency input value ofmagnetic pickup on controller correctly

set or not, if error need reset.2. Check supply fuels enough or not.3. Check governor speed shaft moved or

not, if moved correct it.4. If installed electronics governor, check if

level shaft can freely move, correct it ifnecessary.

5. Adjust diesel speed when it is running.6. Check the parameters setting for

underspeed failure right or not.

Low

voltage

shutdown

LCD display low

voltage failure

1. Switch off load on alternator, remove failureafter shutdown and restart unit.

2. Check the setting value of Gen low voltagefailure, make sure correct data.

3. If voltage still low, adjust generator output

voltage by setting potentiometer to recover tonormal value.

4. Refer to Alternator Manual

High

voltage

shutdown

LCD display high

voltage failure

1. Switch off load on alternator, remove failureafter shutdown and restart unit.

2. Check the setting value of Gen high voltagefailure, make sure correct data.

3. Check the measuring voltage of controller, ifvoltage normal, check load and make sure itis non capacitive (power factor compensationdevice will casual cause a capacitive load).

4. If voltage still low, adjust generator outputvoltage by setting potentiometer to recover tonormal value.

5. Refer to Alternator Manual

Engine

fail not

stop

Generator still

running after stop,

LCD display fail to

stop failure

1. Check fuel solenoid valve on diesel (or levelshaft), make sure oil channel is completelyclosed under close status.

2. Check fuel control solenoid valve, change it ifnecessary.

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12. Technical Parameters

DC supply: 8.0V to 35V continuous

Max. operating current: @12V 150mA, @24V 75mA

AC input voltage: phase voltage15~300 Vac RMS (AC frequency 40 Hz)

AC input frequency: 3~70Hz (voltage15V)

Control relay output: 3A/30Vdc

Operating ambient temperature: -20 to 70

Storage ambient temperature: -30 to 80

Version070A090507

Date post:	22-Feb-2018
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GU601A-EN0507.pdf

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