Operation & Maintenance Manual: (MGS 7310 GCP)
Operation & Maintenance Manual: (MGS 7310 GCP)
Operation & Maintenance Manual: (MGS 7310 GCP)
OPERATION &
MAINTENANCE MANUAL
Issued: January 2016
CAUTION
Please read this manual thoroughly before proceeding with operation, inspection,
Limited warranty
The manufacturer will repair or replace parts returned to the manufacturer when the manufacturer judges that the
parts are defective in material and/or workmanship after conducting inspection.
The manufacturer's warranty is limited to the compensation work of repair or replacement of parts.
The warranty coverage is effective for the original purchaser only. Those to whom ownership is later transferred are
not provided with the warranty.
The manufacturer makes no warranties, either expressed or implied, except as provided in this
manual, including, but not limited to, warranties as to marketability, merchantability,
fitness for a particular purpose or use, or against infringement of any patent.
The manufacturer will not be liable for any damages or consequential damages, including, but
not limited to, damages or other costs resulting from any abuse, misuse, misapplication of the
generator and devices supplied by the manufacturer.
The manufacturer will not be liable for any damages or personal injuries resulting from any
modification, without the manufacturer's written permission, of the generator and devices sup-
plied by the manufacturer.
The manufacturer will not be liable for any damages or production losses caused by the use of
fuel, engine oil and/or long life coolant (LLC) that are not recommended by the manufacturer.
ii
FOREWORD
Important information
To avoid the potential hazard, accident prevention To prevent an accident, do not attempt to carry out
activities must be planned methodically and con- any operation other than those described in this
ducted continually by considering all aspect of gen- manual, and do not use the engine for any unap-
erator operation, maintenance and inspection. All proved purpose.
related personnel, including managers and supervi- When the ownership of the generator is transferred,
sors, should actively participate, recognize their roles be sure to provide this manual with the generator to
and organize themselves and their work to ensure a the new owner. Also inform the manufacturer of the
safe environment. name and address of the new owner of the engine.
The foremost safety objective is to prevent accidents This manual is copyrighted and all rights are
which may result in injury or death, or equipment reserved. No part of this manual, including illustra-
damage. tions and technical references, may be reproduced,
Always observe laws or regulations of the local or photocopied, translated, or reproduced in any elec-
federal/national government. tronic medium or machine readable form without
The manufacturer cannot foresee all potential dan- prior written consent from the manufacturer.
gers of the generator, potential danger resulting from The contents in this manual are subject to change at
human error and other causes, or danger caused by any time without notice for improvement of the gen-
a specific environment in which the engine is used. erator.
Since there are many actions that cannot be per- Pictures or illustrations of the product in this manual
formed or must not be performed, it is impossible to may differ from those of product you have. Please
indicate every caution in this manual or on warning note that, depending on specifications, items
labels. As such, it is extremely important to follow described in this manual may differ from those on
directions in this manual and also to take general your engine in shape, or may not be installed on your
safety measures when operating, maintaining and engine.
inspecting the generator. Please contact your Mitsubishi dealer if you need
This manual has been prepared for people whose more information or if you have any questions.
native language is English. When the generator is If you lost or damaged this manual, obtain a new
used by individuals whose native language is not copy at your Mitsubishi dealer as soon as possible.
English, the customer is requested to provide thor-
ough safety guidance to the operators. Also add
safety, caution and operating signs that describe the
original warning label statements in the native lan-
guage of the operators.
The generator must be operated, maintained and
inspected only by qualified persons who have thor-
ough knowledge of generators and their dangers and
who also have received risk avoidance training.
iii
FOREWORD
Warning indication
The following two means are used to call the attention of the operators and maintenance personnel to potential dan-
gers of the engine.
Warning statements in the manual
Warning labels affixed on the engine
Warning statements
The warning statements in this manual describe potential danger in operating, inspecting or maintaining the engine,
using the following five classifications to indicate the degree of potential hazard.
Failure to follow these directions could lead to serious accidents which could result in personal injury, or death in
the worst case.
Failure to follow these directions can lead to serious accidents which can result in personal injury, or death in the
worst case.
DANGER Indicates a highly hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury.
CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in property
damage.
Note : Indicates important information or information which is useful for engine operation.
iv
FOREWORD
Units of measurement
Measurements are based on the International System of Units (SI), and they are converted to the metric system
units in this manual using the following conversion rates.
Pressure :1MPa = 10.197kgf/cm2
Torque :1 N·m = 0.10197kgf·m
Force :1N = 0.10197kgf
Horsepower :1kW = 1.341HP = 1.3596PS
Meter of mercury :1kPa = 0.75cmHg
Meter of water :1kPa = 10.197cmH2O(cmAq)
Engine speed :1min-1 = 1rpm
v
CONTENTS
Chapter 1 Add coolant only after the coolant temperature
dropped ............................................................ 1-6
BASIC SAFETY PRECAUTIONS
Never remove heat shields .............................. 1-6
Danger of fire and explosion................1-1
Be careful of burns when changing oil ............. 1-6
Keep flames away............................................ 1-1
If any anomaly occurs ......................... 1-6
Keep generator set surrounding area tidy and
Do not add coolant immediately after a sudden stop
clean ................................................................ 1-1
due to overheating ........................................... 1-6
Avoid accessing crankcase until engine cools . 1-1
Avoid immediate restart after abnormal stop.... 1-6
Care for fuel, oil and exhaust gas leakage....... 1-1
Avoid continuous generator operation at low oil
Use explosion-proof lighting apparatus............ 1-1
pressure ........................................................... 1-6
Prevent electrical wires from short-circuiting.... 1-1
If V-belt breaks, stop engine immediately ........ 1-6
Keep fire extinguishers and a first-aid kit handy1-1
Battery-related precautions................. 1-7
Stay clear of all rotating and moving
Handle the battery correctly ............................. 1-7
parts ....................................................1-2
Danger of electric shock ..................... 1-7
Install protective covers around rotating parts . 1-2
Do not touch output terminals .......................... 1-7
Check work area for safety .............................. 1-2
Stay clear of moving parts during engine Other cautions..................................... 1-8
running ............................................................. 1-2 Wear ear plugs ................................................. 1-8
Lockout and Tagout ......................................... 1-2 Never modify engine ........................................ 1-8
Keep generator set stopped during servicing... 1-2 Observe safety rules at work site ..................... 1-8
Always restore engine turning tools after use .. 1-2 Work clothing and protective gear.................... 1-8
Never break seals ............................................ 1-8
Danger of exhaust fume poisoning......1-3
Perform all specified pre-operation inspections and
Operate the engine in a well-ventilated area.... 1-3
periodic inspections.......................................... 1-8
Precautions for Installation ..................1-3
Break-in the engine .......................................... 1-8
Never forget to ground the generator set ......... 1-3
Warm up the engine before use ....................... 1-9
Be sure to check load cables ........................... 1-3
Do not operate engine continuously under low
Observe the correct connection method of load
load .................................................................. 1-9
cables............................................................... 1-3
Never operate the engine in an overloaded
Danger of falling ..................................1-4 condition ........................................................... 1-9
Lift the generator set carefully.......................... 1-4 Conduct cooling operation before stopping the
Do not climb onto the generator set ................. 1-4 engine .............................................................. 1-9
Always prepare stable scaffold ........................ 1-4 Protection of the generator set against water
Do not enter under the generator set being entry ................................................................. 1-9
lifted up ............................................................ 1-4 Properly maintain the air cleaner and
Precautions before starting operation..1-5 pre-cleaner ....................................................... 1-9
Be sure to turn off (open) the circuit breaker before Use of tools optimum for each work ................. 1-9
starting the operation ....................................... 1-5 Do not operate the starter for a prolonged time1-10
Be careful when handling fuel, engine oil or Do not turn off the battery switch during
LLC ......................................................1-5 operation ........................................................ 1-10
Use only specified fuel, engine oil and long-life Cautionary instructions for transporting the
coolant (LLC).................................................... 1-5 engine ............................................................ 1-10
Handle LLC (long life coolant) carefully ........... 1-5 Ventilation of engine room ............................. 1-10
Proper disposal of waste oil and coolant (LLC) 1-5 Do not touch high-pressure injection fuel ....... 1-10
Dangers of burn injuries ......................1-6 Warning labels .................................. 1-11
Do not touch the engine during or immediately after Maintenance of warning labels....................... 1-11
operation .......................................................... 1-6
Be careful in handling the cap of fresh water
tank .................................................................. 1-6
CONTENTS-1
CONTENTS
List of Tables
Chapter 3 Table 2-1 Generator Panel ......................................2-3
OPERATION Table 2-2 Inside of the generator panel...................2-7
External inspection ..............................3-1 Table 2-3 Warning .................................................2-10
Starting ................................................3-2 Table 2-4 Analog pre-alarms .................................2-10
Auto mode operation........................................ 3-2
Table 2-5 Stop (Shutdown)....................................2-11
Manual mode operation ................................... 3-3
Table 2-6 Electrical trip ..........................................2-12
Voltage adjuster...................................3-4
Table 4-1 Generator ................................................4-1
Frequency adjuster..............................3-4
Table 5-1 Main specifications (MGS1000B) ............5-1
Table 5-2 Main specifications (MGS1000C) ............5-1
Chapter 4
TROUBLESHOOTING
Engine .................................................4-1
Generator ............................................4-1
Chapter 5
MAIN SPECIFICATIONS
Main specifications MGS1000B/C
(S12H-PTA-S) .....................................5-1
CONTENTS-2
Chapter 1 BASIC SAFETY PRECAUTIONS
Danger of fire and explosion
WARNING
Keep flames away Care for fuel, oil and exhaust
Never use fire around the generator
set. Fuel vapor or other gas can catch
gas leakage
If any fuel, oil or exhaust gas leakage is found, imme-
fire and produce dangerous situa-
diately take corrective measures to stop it.
tions.
Such leakages, if left uncorrected, can cause fuel or
Wipe off spilled fuel, oil and LLC
engine oil to reach hot engine surfaces or hot exhaust
immediately and thoroughly. Spilled fuel, oil and LLC
gas to contact flammable materials, possibly leading
may ignite and cause a fire.
to personal injury and/or damage to equipment.
Store engine oil in a well ventilated area. Make sure
that the cap of container is tightly closed. Use explosion-proof lighting
Keep generator set surround- apparatus
When inspecting fuel, engine oil, coolant, battery elec-
ing area tidy and clean trolyte, etc., use a flameproof light. An ordinary light-
Never place any dangerous articles such as flamma-
ing apparatus may ignite gas and cause it to explode.
ble substances including fuel, engine oil or LLC and
gunpowder, etc. in the surrounding of the generator Prevent electrical wires from
set. Such substances can cause fire or explosion. short-circuiting
Remove dust, dirt and other foreign materials accu- Avoid inspecting or servicing the electrical system with
mulated on and around the generator set. Such mate- the ground cable connected to the battery. Otherwise,
rials can cause fire or the engine to overheat. In a fire could result from short-circuiting. Be sure to dis-
particular, clean the top surface of the battery thor- connect the battery cable from the negative (-) termi-
oughly. Dust can cause a short-circuit. nal before beginning with the work procedure.
The generator set must be used at least 1 m [3.3 ft.] Short-circuits, possibly resulting in fire, may be
away from buildings and other equipment to prevent caused by a loose terminal or damaged cable/wire.
possible fire caused by engine heat. Inspect the terminals, cables and wires, and repair or
replace the faulty parts before beginning with the ser-
Avoid accessing crankcase vice procedure.
until engine cools
Do not attempt to open the side cover of the crank- Keep fire extinguishers and a
case before the engine cools down. Wait at least 10 first-aid kit handy
minutes after stopping the engine. Keep fire extinguishers handy, and
Opening the cover when the engine is hot allows fresh become familiar with their usage.
air to flow into the crankcase, which can cause oil mist Keep a first-aid kit at the designated
to ignite and explode. place where it is easily accessible by
anyone at any time.
Establish response procedures to follow in the event
of fire or accident. Provide an emergency evacuation
route and contact points and means of communication
in case of emergency.
1-1
Chapter 1 BASIC SAFETY PRECAUTIONS
1-2
Chapter 1 BASIC SAFETY PRECAUTIONS
1-3
Chapter 1 BASIC SAFETY PRECAUTIONS
Danger of falling
WARNING
Lift the generator set carefully Always prepare stable scaffold
To lift the engine, use slings capable
Use a stable work platform to stand
of supporting the weight of the
on when working on the upper part of
engine.
the engine and other hard-to-reach
Also, attach the wire rope to the lifting
places.
hangers provided on/under the gener-
Standing on a decrepit stool or parts
ator set using a correct sling.
box may result in personal injury.
During lifting process, keep the generator set in a well-
Do not place any unnecessary objects on a work plat-
balanced position by taking the center of gravity of the
form.
generator set into consideration.
Keep the angle formed by slings attached to hangers Do not enter under the genera-
within 60 degrees. tor set being lifted up
If the angle exceeds this limit, excessive load could be Do not allow anyone to stand under the generator set
imposed on the hangers and this could damage the being lifted up. An accidental fall of generator set may,
hangers and result in a serious accident. in the worst case, result in death. Do not stand under
If the wire rope contacts the generator set directly, the crane or in the way where it may move around.
place a cloth or other soft padding to avoid damage to Handle the lifting device carefully. Also, do not use a
the generator set and wire rope. twisted or worn wire rope to lift the generator set, as it
could lead to breaking a wire rope. When handling the
Do not climb onto the generator wire rope be sure to wear protective gloves. Do not
set twist the lifting chain as it could lead to breaking a
Do not climb onto the generator set, nor step on any
chain.
generator set parts located on the lateral sides.
To work on parts located on the upper section of gen- WIRES ARE WIRES ARE
UNRAVELING LOOSELY TWISTED
erator set, use a ladder, stool, etc., that was firmly
secured.
Climbing on the generator set may not only damage
TWISTED
generator set parts but also cause parts to fall off and KINKS
CHAIN
1-4
Chapter 1 BASIC SAFETY PRECAUTIONS
1-5
Chapter 1 BASIC SAFETY PRECAUTIONS
Add coolant only after the cool- If V-belt breaks, stop engine
ant temperature dropped immediately
If the V-belt breaks, stop the generator set immedi-
Do not add coolant immediately after the engine
ately. Continuous engine operation with the broken
stops. Wait until the coolant temperature lowers suffi-
fan belt could cause the engine to overheat and
ciently to avoid a risk of burns.
thereby the coolant to boil into steam, which may gush
Never remove heat shields out from the reserve tank or water tank, and cause
The exhaust system, which becomes extremely hot personal injuries.
while the engine is operating, is provided with various
heat shields. Do not remove these heat shields. If any
of these heat shields have been removed owing to
unavoidable circumstances during the work, be sure
to restore them after the work is completed.
1-6
Chapter 1 BASIC SAFETY PRECAUTIONS
1-7
Chapter 1 BASIC SAFETY PRECAUTIONS
Other cautions
CAUTION
1-8
Chapter 1 BASIC SAFETY PRECAUTIONS
1-9
Chapter 1 BASIC SAFETY PRECAUTIONS
1-10
Chapter 1 BASIC SAFETY PRECAUTIONS
Warning labels
CAUTION
1-11
Chapter 2 NAME OF PARTS
Generator set appearance
Generator set appearance varies depending on the model, shape and specifications of each set.
Air cleaner is the standard equipment for MGS-C.
Pre-cleaner is the standard equipment for MGS-B.
The vibration isolator is placed at lower for the continuous generator sets, and at upper for the stand-by and prime
generator sets.
Left view
Turbo charger Fuel filter
Radiator Fuel feed pump
Exhaust air
Breather
Rear
Front
Oil filler
Thermostat
Generator panel
Water pump
Rear Front
Terminal box
2-1
Chapter 2 NAME OF PARTS
Generator Panel
AUTO / MANUAL
3
MODE SELECTION
ACTIVE
PANEL STOP
LOCK RESET
MGS 7310GCP
4
6 7
10
11
12
18
17 16 15 14 13
2-2
Chapter 2 NAME OF PARTS
Menu navigation When this button is pressed, various values will be sequentially displayed in the liq-
6
button uid crystal display (LCD).
2-3
Chapter 2 NAME OF PARTS
Liquid crystal dis- In this liquid crystal display (LCD) the value, point, and unit of measurement, the
7
play (LCD) alarm icon, and the user-defined warning will be displayed.
REMOTE START This lamp will turn on when the key switch is set to the auto mode and the engine is
8
PRESENT started with the remote start signal being inputted.
GENERATOR This lamp turns on when the power reaches the rated voltage after starting.
9
READY
L.O. FILTER This lamp turns on when the oil filter is clogged.
10
CLOGGED
ELECTRICAL This lamp turns on when the power line enters in the electrically tripped state.
11
TRIP
12 Close generator This button closes the breaker and supplies power to the load.
Use this button to start operating the engine when the selector switch is set into the
13 Start button
manual mode and the key switch is active.
Mute/Lamp Test This button silences the audible alarm if it is sounding and illuminates all of the LEDs
14
button as a lamp test feature.
15 Auto button This button places the module into its "Automatic" mode.
16 Manual button This mode allows manual control of the generator functions.
This button places the module into its "Stop/Reset" mode. This will clear any alarm
17 Stop/Reset button
conditions for which the triggering criteria have been removed.
18 Open generator This button opens the breaker and stop to supply power to the load.
2-4
Chapter 2 NAME OF PARTS
2-5
Chapter 2 NAME OF PARTS
Screen display
Switching the screen
1. In the initial screen, the screen shown at the right will
be displayed.
2-6
Chapter 2 NAME OF PARTS
SPEED CONTROLLER
S+ 50
100
DR OP
6 5
S- 0
XS-4008-03 7
100
SOURCE DC V
1 50
0
GAIN
NO 8
2 100
9
3 50
0
I
SOURCE
S+
S-
6
7
MAGNETIC
PICK UP
10
1 8
4 100
2
3
4
9
10
11
11
50
D ACTUATOR 5 12 SP
5 0
12
TOHO SEISAKUSHO CO. .LTD
MODEL No. 101
TEL 0428-32-3551
Back panel
7 8 9 10 11 12
15
14
Base Plate
13 13 13
2-7
Chapter 2 NAME OF PARTS
Engine
Engine speed
Engine oil pressure
Coolant Temperature
Engine Battery Volts
Run Time
Oil Temperature
Generator
Generator Voltage (ph-N)
Generator Voltage (ph-ph)
Generator Frequency
Generator Current
Generator Earth Current
Generator load (kW)
Generator load (kVA)
Generator Power Factor
Generator load (kVAr)
Generator load (kWh, kVAh, kVArh)
Generator Phase Sequence
About
Module Type
Application Version
USB ID - unique identifier for PC USB connection
Analogue Measurements Version
Firmware Update Bootloader Version
2-8
Chapter 2 NAME OF PARTS
The LCD will display multiple alarms, e.g. "High Engine Temperature shutdown", "Emergency Stop" and "Low Cool-
ant Warning". These will automatically scroll round in the order that they occurred.
2-9
Chapter 2 NAME OF PARTS
Warning
The warning alarm informs the operator of abnormal conditions of the generator set.
Analog pre-alarms
The alarms are termed "pre-alarms" as they pre-warn the operator of potentially more serious alarm condition.
2-10
Chapter 2 NAME OF PARTS
Stop (Shutdown)
The shutdown alarm for stopping the generator is associated with the latch function. Therefore, it is necessary to
reset the module after confirming the alarm, canceling the alarm condition, and removing the possible causes of the
trouble.
Table 2-5 Stop (Shutdown)
Condition Description
Fail to start This warning will be displayed if the engine would not start even after the starting is tried for
(overcrank) the preset number of times.
When the + ve DC power is interrupted due to an emergency stop input, the following emer-
gency stop sequence will take place in the following order. Firstly the emergency stop function
for the generator is activated, which will then prevent the generator from restarting until the
Emergency stop
emergency stop switch is reset. Next, the + ve DC power supply from the fuel solenoid and
starter solenoid are interrupted, and this warning will be displayed accordingly. The emer-
gency stop + Ve signal must be usually active. If not, the unit would stop at any moment.
When the engine oil pressure falls below the setting value of low pressure trip, the generator
Low oil pressure
will stop operation and this warning will be displayed after the safety ON timer times-out.
Engine high When it is detected that the engine cooling water temperature is higher than the setting value
cooling water of high engine temperature trip, the generator will stop operation and this warning will be dis-
temperature played after the safety ON timer times-out.
This warning will be displayed when the engine revolution speed exceeds the preset trip
Overspeed value. However, the overspeed trip logic has an allowance for overshoot trip value during the
engine start-up process. This is to prevent a troublesome tripping at start-up from occurring.
When the engine revolution speed falls below the preset trip value, the generator will stop
Underspeed
operation and this warning will be displayed after the safety ON timer times-out.
Generator over
The generator output frequency has risen above the pre-set value.
frequency
Generator under
The generator output frequency has fallen below the pre-set level.
frequency
Generator over-
The generator output voltage has risen above the pre-set value.
voltage
Generator under
The generator output voltage has fallen below the pre-set level.
voltage
Oil pressure sen- When the signal from the oil pressure sensor is not incoming, i.e. if the circuit is opened, the
sor Open Circuit generator will be shut down and this warning will be displayed.
When the magnetic pickup signal disappears during cranking, this warning will be displayed
Loss of speed and the generator will stop operation. This stop of generator due to loss of speed signal will
signal occur only during cranking or when safety ON timer is active. If this signal is lost during usual
operation, the generator will stop according to a low speed alarm.
2-11
Chapter 2 NAME OF PARTS
Electrical trip
If an electrical trip is activated, the generator will be controlled so as to stop itself automatically. In the electrical trip
condition, the module assumes the "Load shift" output as not exciting, and removes the load from the generator. If
this condition occurs, the module starts the cooling timer, and removes the load to cool down the engine before the
engine stops. If this happens, verify the warning before canceling it, and remove the possible causes to reset the
module.
Table 2-6 Electrical trip
Condition Description
Electrical trip This will be displayed when a electrical trip is issued.
2-12
Chapter 2 NAME OF PARTS
Event log
This generator maintains a log of the last 50 shutdown alarms to enable the operator or engineer to view the past
alarms history. The event log only includes shutdown and electrical trip alarms logged. The event log does not con-
tain warning alarms. Once the log is full, any subsequent shutdown alarms will overwrite the oldest entry in the log.
2-13
Chapter 3 OPERATION
External inspection
CAUTION
Check around the generator set, particularly around its hot part (exhaust manifold, etc.) and battery unit for any
accumulation of flammables, fuel leaks, and engine oil leaks, and so on. Wipe off dusts accumulated on the bat-
tery unit top surface with a cloth soaked in water before starting the generator set. Clean the top of battery with a
wet cloth before starting engine, as dust on the battery can easily ignite. If any abnormality is found, be sure to
repair it or contact your Mitsubishi dealer.
As for the external conditions of the generator set, check the following points.
Note: For the prestart inspection of the engine, refer to the engine operation manual.
1. Remove all the unnecessary tool, cans, and others which have been used for installing the generator set from the
operating area. Always keep the surroundings in proper order.
2. Make sure that any tools, wires, and other unnecessary materials are not left on and around the generator set.
3. Also make sure that any flammable materials are not left around the generator set and battery, and that the gen-
erator set or battery are kept free of dust. If combustible materials or dust are found near the engine or battery,
remove them.
4. Make sure the bolts and nuts are not loosened or omitted, and make sure that the electrical wirings of the starter
and alternator are not loosened, etc.
5. Make sure that the operating area is well-ventilated.
6. Make sure that no fuel leak, engine oil leak or cooling water leak is found on each part of the generator set. If leaks
are found, repair the leak, or contact your local Mitsubishi dealer.
7. Check for abnormal engine noises or vibrations such as knocking.
8. Check the color of exhaust gas from the exhaust muffler.
9. Make sure that the open/close condition of the valve and cock of each piping are normal.
3-1
Chapter 3 OPERATION
Starting
CAUTION
Before operating the generator set, make sure that the main circuit breaker (option) is off (open). If the generator
set is operated with the circuit breaker being on (closed), the operator may be subject to electric shocks. Make
sure there is no one in the vicinity of the generator set. Being near the generator set may result in electrical shock
or injury when the generator set is started.
In order to protect any person from being subject to electric shocks as the result of touching the output terminal, be
sure to cover the output terminal while the generator set is operating.
3-2
Chapter 3 OPERATION
3-3
Chapter 3 OPERATION
Voltage adjuster
If the meter’s voltage indication is out of the rated
value, regulate the voltage for adjustment.
DECREASE INCREASE
VOLTS ADJ
3-4
Chapter 4 TROUBLESHOOTING
Engine
For the troubleshooting and remedies of the engine, refer to the engine operation manual.
Generator
Table 4-1 Generator
Trouble conditions Remedies
The generator set cannot be oper- Check the battery and generator set for their wiring. Check the DC power
ated. supply. Check the DC fuse.
Check whether the DC power supply voltage is above 35V or below 9V.
Stopping
Check if the ambient temperature is above 70 °C. Check the DC fuse.
Where the emergency stop switch has not been installed, make sure that the
Generator set lockout due to positive line is connected to the emergency stop input. Check whether the
emergency stop emergency stop switch functions correctly. Check the wiring for any open cir-
cuit.
Make sure that only one end of the pick-up shield is connected. If the both
Pick-up sensor trouble ends are connected, the shield will serve as an antenna and pick up the volt-
age randomly.
Check the engine oil pressure, and check oil pressure switch/sensor for their
Low oil pressure after the engine wiring condition. Check whether the polarity being set (if appropriate) is cor-
is ignited rect (for example, normal-open or normal-close), or whether the sensor is
available with the 7310 module.
Check the engine cooling water temperature. Check the switch/sensor for
Occurrence of high engine cooling
their wiring condition. Check whether the polarity being set (if appropriate) is
water temperature after engine is
correct (for example, normal-open or normal-close), or whether the sensor is
ignited.
available with the 7310 module.
Check the switch and wiring that are associated with the defective portions as
Occurrence of "Fail to stop"
displayed in the liquid crystal display (LCD). Check the input settings.
Check the switch and wiring that are associated with the defective portions as
Trip of warning systems
displayed in the liquid crystal display (LCD). Check the input settings.
Failed to start after the start opera- Check the fuel solenoid wiring. Check the fuel condition. Check the battery
tion is repeated for a preset num- voltage. Check that the battery voltage is displayed in the fuel output field of
ber of times the panel. Check if the speed detection signal is incoming to the 7310 input.
Continuous generator start in the Make sure that no input is for the "Remote start" input. Check if the set polar-
auto mode ity is correct.
Make sure that the start delay timer times-out properly. If the trouble is a
Failed to start generator even with
defective remote start, check if the signal is incoming to the "Remote start"
the remote start signal received
input. Make sure that the remote start signal is set as the input.
Check the engine heater plug for the wiring condition. Check the battery volt-
Pre-heat inoperative age. Check if the battery voltage is supplied to the preheat output of the gen-
erator. Make sure that the preheat setting is correctly made.
Check the starter solenoid wiring. Check the battery voltage. Check whether
Starter motor cannot operate. the battery voltage is applied to the starter output of the generator. Make sure
that the emergency stop input is at + Ve.
The engine can operate but no Check if the warm-up timer times-out. Make sure that the generator load con-
load is applied to the generator. trol signal is not connected to the module input.
Note: The above-mentioned method of troubleshooting is only an example of checking for reference. Since this mod-
ule can be used for various functions depending on the settings, consult the source of the settings for the un-
certain portions.
4-1
Chapter 5 MAIN SPECIFICATIONS
Main specifications MGS1000B/C (S12H-PTA-S)
MGS1000B
Table 5-1 Main specifications (MGS1000B)
MGS1000C
Table 5-2 Main specifications (MGS1000C)
5-1
Revision History
Revision History
MGS1000B, MGS1000C (S12H-PTA-S) (MGS 7310 GCP)
Title
OPERATION & MAINTENANCE MANUAL
Copyright © 2018 MITSUBISHI HEAVY INDUSTRIES ENGINE SYSTEM ASIA PTE, LTD. All Rights Reserved.
January 2016 OPERATION & MAINTENANCE MANUAL (MGS 7310 GCP) Pub. No. 29Q01-A0220