MULTIQUIP Power WhisperWatt DCA45SSIU4 Application guide
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
To find the latest revision of this
publication, visit our website at:
www.mqpower.com
®
WHISPERWATT™ SERIES
MODEL DCA45SSIU4
60HZ GENERATOR
(ISUZU 4JJ1T DIESEL ENGINE)
PARTS LIST NO. M1870301104
Revision #1 (10/24/13)
OperatiOn and parts Manual
PROPOSITION 65 WARNING
Diesel engine exhaust and some of
If you believe that your vehicle has a defect that could cause a crash or could
cause injury or death, you should immediately inform the National Highway
Traffic Safety Administration (NHTSA) in addition to notifying Multiquip at
1-800-421-1244.
If NHTSA receives similar complaints, it may open an investigation, and if it
finds that a safety defect exists in a group of vehicles, it may order a recall and
remedy campaign. However, NHTSA cannot become involved in individual
problems between you, your dealer, or Multiquip.
To contact NHTSA, you may either call the Vehicle Safety Hotline toll-free at
1-888-327-4236 (TTY: 1-800-424-9153), go to http://www.nhtsa.dot.gov; or
write to:
Administrator
NHTSA
1200 New Jersey Avenue S.E.
Washington, DC 20590
You can also obtain information about motor vehicle safety from
http://www.safecar.gov.
REPORTING SAFETY DEFECTS
TABLE OF CONTENTS
DCA45SSIU4 Generator
Proposition 65 Warning ........................................... 2
Reporting Safety Defects......................................... 3
Table Of Contents.................................................... 4
Parts Ordering Procedures...................................... 5
Safety Information .............................................. 6-11
Specifications ........................................................ 12
Dimensions............................................................ 13
Installation ............................................................. 14
Installation ............................................................. 15
General Information............................................... 16
Major Components ................................................ 17
Generator Control Panel........................................ 18
Engine Operating Panel.................................... 20-21
Output Terminal Panel Familiarization .............. 22-24
Load Application.................................................... 25
Generator Outputs................................................. 26
Generator Outputs/Gauge Reading....................... 27
Output Terminal Panel Connections ................. 28-29
Inspection/Setup............................................... 30-33
Generator Start-Up Procedure ........................ 34-35
Generator Shut-Down Procedures ........................ 36
Maintenance..................................................... 37-39
Trailer Maintenance .......................................... 40-43
Trailer WirIng Diagram ........................................... 44
Generator Wiring Diagram..................................... 45
Engine Wiring Diagram.......................................... 46
Controller Wiring Diagram ..................................... 47
Troubleshooting (Generator).................................. 48
Troubleshooting (Diagnostic Lamp) ....................... 49
Explanation Of Code In Remarks Column............. 50
Suggested Spare Parts ......................................... 51
Component Drawings
Generator Assembly......................................... 52-53
Control Box Assembly ...................................... 54-59
Engine and Radiator Assembly ........................ 60-63
Output Terminal Assembly................................ 64-65
Battery Assembly.............................................. 66-67
Muffler Assembly .............................................. 68-69
Fuel Tank Assembly ......................................... 70-71
Enclosure Assembly ......................................... 72-75
Rubber Seals Assembly ................................... 76-77
Nameplate and Decals Assembly .................... 78-79
Terms And Conditions Of Sale — Parts ................ 80
PARTS ORDERING PROCEDURES
www.multiquip.com
Ordering parts has never been easier!
Choose from three easy options:
When ordering parts, please supply:
❒Dealer Account Number
❒Dealer Name and Address
❒
❒Return Fax Number
❒
❒
❒
✓ UPS/Fed Ex ✓DHL
■Priority One ✓Tr u ck
■Ground
■Next Day
■Second/Third Day
If you have an MQ Account, to obtain a Username
and Password, E-mail us at:
To obtain an MQ Account, contact your
District Sales Manager for more information.
Order via Internet
Order parts on-line using Multiquip’s SmartEquip website!
■View Parts Diagrams
■Order Parts
■Print Specification Information
Note: Discounts Are Subject To Change
Goto www.multiquip.com and click on
Order Parts to log in and save!
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
Order via Fax
All customers are welcome to order parts via Fax.
1-800-6-PARTS-7 (800-672-7877)
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
1-800-427-1244
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
Note: Discounts Are Subject To Change
Effective:
January 1st
, 2006
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
SAFETY INFORMATION
Do not operate or service the equipment before reading the
entire manual. Safety precautions should be followed at all
times when operating this equipment. Failure to read and
understand the safety messages and operating instructions
could result in injury to yourself and others.
The four safety messages shown below will inform you
about potential hazards that could injure you or others.The
safety messages specifically address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION
or
DANGER
Indicates a hazardous situation which, if not avoided,
result in DEATH or
WARNING
Indicates a hazardous situation which, if not avoided,
result in DEATH or
CAUTION
Indicates a hazardous situation which, if not avoided,
result in or
NOTICE
Addresses practices not related to personal injury.
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.
SAFETY INFORMATION
CAUTION
operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.
operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
operate this equipment under the influence of
drugs or alcohol.
check the equipment for loosened threads or
bolts before starting.
DO NOT use the equipment for any purpose other than
its intended purposes or applications.
NOTICE
This equipment should only be operated by trained and
qualified personnel 18 years of age and older.
Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.
use accessories or attachments that are not
recommended by MQ Power for this equipment. Damage
to the equipment and/or injury to user may result.
know the location of the nearest
know the location of the nearest
know the location of the nearest
phone or
Also, know the
phone numbers of the nearest ambulance, doctor
and
This information will be invaluable in
the case of an emergency.
GENERATOR SAFETY
DANGER
operate the equipment in an explosive
atmosphere or near combustible materials.An
explosion or fire could result causing severe
WARNING
disconnect any
These devices are intended for operator safety.
Disconnection of these devices can cause severe injury,
bodily harm or even death. Disconnection of any of these
devices will void all warranties.
CAUTION
lubricate components or attempt service on a
running machine.
NOTICE
ensure generator is on level ground before use.
keep the machine in proper running condition.
Fix damage to machine and replace any broken parts
immediately.
store equipment properly when it is not being
used. Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel
SAFETY INFORMATION
ENGINE SAFETY
DANGER
The engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.
The engine of this equipment
requires an adequate free
flow of cooling air.
operate this equipment in
any enclosed or narrow area
where free flow of the air is
restricted. If the air flow is
restricted it will cause injury to people and property and
serious damage to the equipment or engine.
WARNING
DO NOT place hands or fingers inside engine
compartment when engine is running.
operate the engine with heat shields or
guards removed.
Keep fingers, hands hair and clothing away
from all moving parts to prevent injury.
DO NOT remove the radiator cap while the
engine is hot. High pressure boiling water
will gush out of the radiator and severely
scald any persons in the general area of
the generator.
DO NOT remove the coolant drain plug while the engine
is hot. Hot coolant will gush out of the coolant tank and
severely scald any persons in the general area of the
generator.
DO NOT remove the engine oil drain plug while the
engine is hot. Hot oil will gush out of the oil tank and
severely scald any persons in the general area of the
generator.
CAUTION
touch the hot exhaust manifold,
muffler or cylinder. Allow these parts to cool
before servicing equipment.
NOTICE
run engine without an air filter or with a dirty air
filter. Severe engine damage may occur. Service air filter
frequently to prevent engine malfunction.
tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
if operating in speed ranges above the
maximum allowable.
Wet stacking is a common problem with diesel engines
which are operated for extended periods with light or
no load applied. When a diesel engine operates without
sufficient load (less than 40% of the rated output), it will
not operate at its optimum temperature. This will allow
unburned fuel to accumulate in the exhaust system,
which can foul the fuel injectors, engine valves and
exhaust system, including turbochargers, and reduce
the operating performance.
In order for a diesel engine to operate at peak efficiency,
it must be able to provide fuel and air in the proper ratio
and at a high enough engine temperature for the engine
to completely burn all of the fuel.
Wet stacking does not usually cause any permanent
damage and can be alleviated if additional load is
applied to relieve the condition. It can reduce the system
performance and increase maintenance. Applying an
increasing load over a period of time until the excess
fuel is burned off and the system capacity is reached
usually can repair the condition. This can take several
hours to burn off the accumulated unburned fuel.
State Health Safety Codes and Public Resources
Codes specify that in certain locations, spark arresters
must be used on internal combustion engines that use
hydrocarbon fuels. A spark arrester is a device designed
to prevent accidental discharge of sparks or flames
from the engine exhaust. Spark arresters are qualified
and rated by the United States Forest Service for this
purpose. In order to comply with local laws regarding
spark arresters, consult the engine distributor or the
local Health and Safety Administrator.
SAFETY INFORMATION
DANGER
DO NOT start the engine near spilled fuel or combustible
fluids. Diesel fuel is extremely flammable and its vapors
can cause an explosion if ignited.
refuel in a well-ventilated area, away from
sparks and open flames.
use extreme caution when working with
flammable liquids.
DO NOT fill the fuel tank while the engine is running
or hot.
DO NOT overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.
Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and flames.
use fuel as a cleaning agent.
DO NOT smoke around or near the
equipment. Fire or explosion could result
from fuel vapors or if fuel is spilled on a
hot engine.
TOWING SAFETY
CAUTION
Check with your local county or state safety
towing regulations, in addition to meeting
Department of Transportation (DOT)
SafetyTowing Regulations, before towing
your generator.
Refer to MQ Power trailer manual for additional safety
information.
In order to reduce the possibility of an accident while
transporting the generator on public roads,
make sure the trailer that supports the generator and
the towing vehicle are mechanically sound and in good
operating condition.
shutdown engine before transporting
Make sure the hitch and coupling of the towing vehicle
are rated equal to, or greater than the trailer “gross
vehicle weight rating.”
inspect the hitch and coupling for wear.
tow a trailer with defective hitches, couplings, chains, etc.
Check the tire air pressure on both towing vehicle and
trailer.
Trailer tires should be inflated to 50 psi cold.
Also check the tire tread wear on both vehicles.
make sure the trailer is equipped with a
properly
attach trailer’s safety chains to towing
vehicle.
make sure the vehicle and trailer directional,
backup, brake and trailer lights are connected and
working properly.
DOT Requirements include the following:
•Connectandtestelectricbrakeoperation.
• Secure portable power cables in cable tray with tie
wraps.
The maximum speed for highway towing is
unless
posted otherwise.Recommended off-road towing is not to
exceed or less depending on type of terrain.
Avoid sudden stops and starts.This can cause skidding,
or jack-knifing. Smooth, gradual starts and stops will
improve towing.
Avoid sharp turns to prevent rolling.
Trailer should be adjusted to a level position at all times
when towing.
Raise and lock trailer wheel stand in up position when
towing.
Place chock blocks underneath wheel to prevent
rolling
while parked.
Place support blocks
underneath the trailer’s bumper
to prevent tipping while parked.
Use the trailer’s swivel jack to adjust the trailer height to
a level position while parked.
SAFETY INFORMATION
DANGER
DO NOT touch output terminals during
operation. Contact with output terminals
during operation can cause electrocution,
The electrical voltage required to
operate the generator can cause severe
injury or even death through physical contact with live
circuits. Turn generator and all circuit breakers OFF
before performing maintenance on the generator or
making contact with output terminals.
insert any objects into the output
receptacles during operation. This is
extremely dangerous.The possibility exists
of electrical shock, electrocution or
Backfeed to a utility system can cause
electrocution and/or property damage.
connect the generator to a
building’s electrical system without
a transfer switch or other approved
device. All installations should be
performed by a licensed electrician in accordance with
all applicable laws and electrical codes. Failure to do so
could result in electrical shock or burn, causing serious
DANGER
let power cords or cables
while AC power from the
generator is being transferred to a load.
use damaged or worn cables or cords when
connecting equipment to generator. Inspect for cuts in
the insulation.
grab or touch a live power
cord or cable with wet hands. The
possibility exists of electrical shock,
Make sure power cables are securely connected to the
generator’s output receptacles. Incorrect connections
may cause electrical shock and damage to the
generator.
NOTICE
make certain that proper power or extension
cord has been selected for the job. See Cable Selection
Chart in this manual.
DANGER
make sure that electrical circuits are properly
grounded to a suitable earth ground (ground rod) per
the National Electrical Code (NEC) and local codes
before operating generator.
Severe injury or death by
electrocution
can result from operating an ungrounded
generator.
use gas piping as an electrical ground.
BATTERY SAFETY
DANGER
DO NOT
drop the battery. There is a possibility that the
battery will explode.
DO NOT expose the battery to open flames,
sparks, cigarettes, etc.The battery contains
combustible gases and liquids. If these
gases and liquids come into contact with a
flame or spark, an explosion could occur.
WARNING
wear safety glasses when
handling the battery to avoid eye irritation.
The battery contains acids that can cause
injury to the eyes and skin.
Use well-insulated gloves when picking up the battery.
keep the battery charged. If the battery is not
charged, combustible gas will build up.
recharge the battery in a well-ventilated
environment to avoid the risk of a dangerous concentration
of combustible gasses.
SAFETY INFORMATION
If the battery liquid (dilute sulfuric acid) comes into
contact with clothing or skin, rinse skin or clothing
immediately with plenty of water.
If the battery liquid (dilute sulfuric acid) comes into
contact with eyes, rinse eyes immediately with plenty
of water and contact the nearest doctor or hospital to
seek medical attention.
CAUTION
disconnect the
before performing service on the generator.
keep battery cables in good working condition.
Repair or replace all worn cables.
NOTICE
Decommissioning is a controlled process used to safely
retire a piece of equipment that is no longer serviceable.
If the equipment poses an unacceptable and unrepairable
safety risk due to wear or damage or is no longer cost
effective to maintain (beyond life-cycle reliability) and is to
be decommissioned (demolition and dismantlement),be
sure to follow rules below.
DO NOT pour waste or oil directly onto the ground, down
a drain or into any water source.
Contact your country's Department of
Public Works or recycling agency in your
area and arrange for proper disposal of
any electrical components, waste or oil
associated with this equipment.
When the life cycle of this equipment is over, remove
battery and bring to appropriate facility for lead
reclamation. Use safety precautions when handling
batteries that contain sulfuric acid.
When the life cycle of this equipment is over, it is
recommended that the trowel frame and all other metal
parts be sent to a recycling center.
Metal recycling involves the collection of metal from
discarded products and its transformation into raw
materials to use in manufacturing a new product.
Recyclers and manufacturers alike promote the process
of recycling metal. Using a metal recycling center
promotes energy cost savings.
NOTICE
The diesel engine used in this equipment has been
designed to reduce harmful levels of carbon monoxide
(CO), hydrocarbons (HC) and nitrogen oxides (NOx)
contained in diesel exhaust emissions.
This engine has been certified to meet US EPA Evaporative
emissions requirements in the installed configuration.
Attempting to modify or make adjustments to the engine
emission system by unauthorized personnel without proper
training could damage the equipment or create an unsafe
condition.
Additionally, modifying the fuel system may adversely affect
evaporative emissions, resulting in fines or other penalties.
The emission control label is an integral part of the emission
system and is strictly controlled by regulations.
The label must remain with the engine for its entire life.
If a replacement emission label is needed, please contact
your authorized engine distributor.
Generator Specifications
DCA-45SSIU4
Type Revolving field, self ventilated,
open protected type synchronous generator
Armature Connection Star with Neutral Zigzag
Phase 3 Single
Standby Output 49.4 KVA (39.6 kW) 28.6 KW
Prime Output 45 kVA (36 KW) 26 KW
240 or 480V 240 or 120V
Frequency 60 Hz
Speed 1800 rpm
Single Phase, 60 Hz
4.8 Kw (2.4 kW x 2)
Engine Specifications
ISUZU 4JJ1T
Type 4 cycle, water-cooled, direct injection, turbo-charged
4 cylinders
Bore x Stroke 3.76 in. x 4.13 in. (95.4 mm x 105 mm)
Displacement 183 cu. in. (3,000 cc)
Rated Output 57 HP/1800 RPM
Starting Electric
Coolant Capacity 2.96 gal. (11.2 liters)
3.96 gal. (15.0 liters)
Fuel Type #2 Diesel Fuel
Fuel Tank Capacity 26 gal. (100 liters)
Fuel Consumption 2.8 gal. (10.6 L)/hr at
Battery 12V 72Ah x 1
SPECIFICATIONS
DIMENSIONS
Figure 1. Dimensions
Dimensions
A 30.31 in. (770 mm.) F 76.38 in. (1,940 mm.)
B 25.00 in. (635 mm.) G 49.21 in. (1,250 mm.)
C 29.05 in. (738 mm.) H 35.43 in. (900 mm.)
D 24.21 in. (615 mm.)
E 29.05 in. (945 mm.)
INSTALLATION
Figure 2. Typical Generator Grounding Application
INSTALLATION
Install the generator in a area that is free of debris,
bystanders, and overhead obstructions. Make sure the
generator is on secure level ground so that it cannot slide
or shift around. Also install the generator in a manner so
that the exhaust will not be discharged in the direction of
nearby homes.
The installation site must be relatively free from moisture
and dust. All electrical equipment should be protected from
excessive moisture. Failure to do will result in deterioration
of the insulation and will result in short circuits and
grounding.
Foreign materials such as dust, sand, lint and abrasive
materials have a tendency to cause excessive wear to
engine and alternator parts.
Exhaust gases from diesel engines are extremely
poisonous. Whenever an engine is installed indoors the
exhaust fumes must be vented to the outside. The engine
should be installed at least two feet from any outside wall.
Using an exhaust pipe which is too long or too small can
cause excessive back pressure which will cause the engine
to heat excessively and possibly burn the valves.
The generator must be mounted on a solid foundation (such
as concrete) and set firmly on the foundation to isolate
vibration of the generator when it is running.The generator
must set at least 6 inches above the floor or grade level (in
accordance to NFPA 110, Chapter 5-4.1). DO NOT remove
the metal skids on the bottom of the generator. They are
to resist damage to the bottom of the generator and to
maintain alignment.
CAUTION
Pay close attention to ventilation when operating the
generator inside tunnels and caves.The engine exhaust
contains noxious elements. Engine exhaust must be
routed to a ventilated area.
GENERATOR GROUNDING
To guard against electrical shock and possible damage to
the equipment, it is important to provide a good EARTH
ground.
Article 250 (Grounding) of the National Electrical Code
(NEC) provides guide lines for proper grounding and
specifies that the cable ground shall be connected to the
grounding system of the building as close to the point of
cable entry as practical.
NEC articles 250-64(b) and 250-66 set the following
grounding requirements:
1. Use one of the following wire types to connect the
generator to earth ground.
a. Copper - 10 AWG (5.3 mm2) or larger.
b. Aluminum - 8 AWG (8.4 mm2) or larger.
2. When grounding the generator (Figure 2) connect the
ground cable between the lock washer and the nut on
the generator and tighten the nut fully. Connect the
other end of the ground cable to earth ground.
3. NEC article 250-52(c) specifies that the earth ground rod
should be buried a minimum of 8 ft. into the ground.
NOTICE
When connecting the generator to any buildings
electrical system consult with a licensed
electrician.
GENERATOR
The MQ Power Model DCA45SSIU4 generator (Figure 3) is
a high quality portable (requires a trailer for transport) power
source for telecom sites, lighting facilities, power tools,
submersible pumps and other industrial and construction
machinery.
The “Engine Operating Panel” is provided with the following:
Tachometer
Water Temperature Gauge
Warning Lamp
Pre-Heat Lamp
Oil Pressure Gauge
Charging Ammeter Gauge
Fuel Level Gauge
Panel Light/Panel Light Switch
ECU Controller
Engine Speed Switch
The “Generator Control Panel” is provided with the following:
Frequency Meter (Hz)
AC Ammeter (Amps)
AC Voltmeter (Volts)
Ammeter Change-Over Switch
Voltmeter Change-Over Switch
Voltage Regulator
3-Pole, 110 amp Main Circuit Breaker
“Control Box” (located behind the Gen. Control Panel)
•Automatic Voltage Regulator
•Current Transformer
•Over-Current Relay
•Starter Relay
•Voltage Selector Switch
The “Output Terminal Panel” is provided with the following:
Three 120/240V output receptacles (CS-6369), 50A
Three auxiliary circuit breakers, 50A
Two 120V output receptacles (GFCI), 20A
Two GFCI circuit breakers, 20A
Five output terminal lugs (3Ø power)
The DCA45SSIU4 generator is equipped with the state of
the art “Open-Delta” excitation system. The open delta
system consist of an electrically independent winding
wound among stationary windings of the AC output
section.
There are four connections of the open delta A, B, C and
D. During steady state loads, the power from the voltage
regulator is supplied from the parallel connections of A to
B, A to D, and C to D. These three phases of the voltage
input to the voltage regulator are then rectified and are the
excitation current for the exciter section.
When a heavy load, such as a motor starting or a short
circuit occurs, the automatic voltage regulator (AVR)
switches the configuration of the open delta to the series
connection of B to C. This has the effect of adding the
voltages of each phase to provide higher excitation to the
exciter section and thus better voltage response during the
application of heavy loads.
The connections of the AVR to the AC output windings are
for sensing only. No power is required from these windings.
The open-delta design provides virtually unlimited excitation
current, offering maximum motor starting capabilities. The
excitation does not have a “fixed ceiling” and responds
according the demands of the required load.
ENGINE
The DCA45SSIU4 is powered by a 4 cylinder, water
cooled, direct injection, turbocharged ISUZU 4JJ1T diesel
engine.This engine is designed to meet every performance
requirement for the generator. Reference Table 2 for engine
specifications.
In keeping with MQ Power’s policy of constantly improving
its products, the specifications quoted herein are subject
to change without prior notice.
The electric governor system controls the RPMs of the engine.
When the engine demand increases or decreases, the
governor system regulates the frequency variation to ±.25%.
When electric power is to be provided to various tools or
loads at some distance from the generator, extension cords
are normally used. Cables should be sized to allow for
distance in length and amperage so that the voltage drop
between the generator and point of use (load) is held to
a minimum. Use the cable selection chart (Table 6) as a
guide for selecting proper extension cable size.
GENERAL INFORMATION
MAJOR COMPONENTS
10
1000 2000
3000
0
RPM
9
AUTO MANUAL
OFF/RESET
LOWOILPRESSURE
HIGHCOOLANTTEMPERATURE
OVERCRANK
OVERSPEED
ENGINERUNNING
MOOOOO-20001Q
Denyo
24
1
5
6
7
8
3
45
45
DESCRIPTION
1 Output Terminal Panel Assembly
2 Output Receptacles Assembly
3 Air Filter Assembly
4 Muffler Assembly
5Fuel Tank Assembly
6 Engine Assembly
7 Battery Assembly
8 Generator Assembly
9 Engine Operating Panel Assembly
10 Generator Control Panel Assembly
Figure 3. Major Components
GENERATOR CONTROL PANEL
Figure 4. Generator Control Panel
1000 2000
3000
0
RPM
OFF
W
U
V
OFF
W-U
V-W
U-V
DECREASE
INCREASE
AUTO MANUAL
OFF/RESET
LOWOIL PRESSURE
HIGHCOOLANT TEMPERAT URE
OVERCRANK
OVERSPEED
ENGINE RUNNING
MOOOOO-20001Q
1
2
4
3
6
7
5
The definitions below describe the controls and functions
of the DCA45SSIU4 Generator Control Panel (Figure 4).
1. — Allows ±15% manual
adjustment of the generator’s output voltage.
2. —This three-pole, 110A main
breaker is provided to protect the the U,V, and W
Output Terminal Lugs from overload.
3. Ammeter Change-Over Switch — This switch allows
the AC ammeter to indicate the current flowing to the
load connected to any phase of the output terminals,
or to be switched off. This switch does not effect the
generator output in any fashion, it is for current reading
only.
4. — This switch allows
the AC voltmeter to indicate phase to phase voltage
between any two phases of the output terminals or to
be switched off.
5. — Indicates the output voltage present
at the U,V, and W Output Terminal Lugs.
6. AC Ammeter — Indicates the amount of current the
load is drawing from the generator per leg selected by
the ammeter phase-selector switch.
7. — Indicates the output frequency
in hertz (Hz). Normally 60 Hz.
Located behind the generator control panel is the Generator
Control Box. This box contains some of the necessary
electronic components required to make the generator
function.
The Control Box is equipped with the following major
components:
Over-Current Relay
Automatic Voltage Regulator (AVR)
Starter Relay
Current Transformer
Voltage Selector Switch
Main Circuit Breaker
NOTICE
Remember the overcurrent relay monitors the current
flowing from the
to the load.
In the event of a short circuit or over current condition,
it will automatically trip the 110 amp main breaker.
To restore power to the Output Terminal Panel, press
the reset button on the overcurrent relay and place the
main circuit breaker in the closed position (ON).
NOTES
ENGINE OPERATING PANEL
Figure 5. Engine Operating Panel
1000 2000
3000
0
R P M
OFF
W
U
V
OFF
W-U
V-W
U-V
DECREASE
INCREASE
AUTO MANUAL
OFF/RESET
LOW OIL PRESSURE
HIGH COOLANT TEMPERATURE
OVERCRANK
OVERSPEED
ENGINE RUNNING
MOOOOO-20001Q
1
2
34
5
6
7
8
9
10
11
Table of contents
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