Specifications

DA7000 SERIES A.C. GENERATORS — OPERATION AND PARTS MANUAL — REV. #4 (08/07/09) — PAGE 15
DA7000 Series Familiarization
Generator
The MQ, Model DA7000 series generators are 6.0 kW
(continuous output), 7.0 kW (max output) A.C. generators.
Reference Table 1, generator specifications.
Control Panel
The control panel is provided with the following:
 One GFCI 120 volt receptacle, 20 amp (single-phase)
 One 125 volt receptacle, 30 amp (single-phase)
 One 125/250 volt receptacle, 50 amp (single-phase)
 One 125/250 volt receptacle, 30 amp (single-phase)
 AC Voltmeter
 Main Circuit Breaker 265V @25 Amps
 Circuit Protector Breaker (GFCI) 120V @20 Amps
 Idle Control Switch
 Starter Switch
 Warning Lamp Unit
 Hour Meter
 Ground Terminal
Engine Protection System
Engine protection fail safe features are provided in the event
of low oil pressure, high coolant temperature and failure of
the battery to charge. If any of the above conditions occur
while operating the generator it will cause a complete unit
shut down.
Battery Charge Alarm
This unit is equipped with a protective device that signals
an alarm and automatically stops the engine when the battery
cannot be charged by the alternator
Water Temperature Alarm
This unit is equipped with an apparatus that signals an alarm
and automatically stops the engine when the cooling water
temperature becomes abnormally high. This apparatus will
not function properly if the machine is operated with less
than the proper amount of coolant.
Oil Pressure Warning Alarm
This unit is equipped with a protective device that detects
low oil pressure. If the lubricating oil pressure of this unit
should become abnormally low, the protective device will
automatically stop the engine. If this condition should occur,
please refer to the engine troubleshooting table in this
manual.
DA7000 SERIES GENERATORS — GENERAL INFORMATION
Idle Control Switch
The DA7000 series generators are provided with an automatic
idle (engine) control capability for noise suppression and
fuel cost reduction. The automatic idle control feature
automatically engages under a no-load condition.
When the Idle Control Switch is placed in the “ON” position,
the engine revolutions will be approximately 2200 rpm (low-
speed operation). When a load is connected to one of the
output receptacles, the engine speed will a u t o matically
increase to about 3600 rpm (high-speed operation).
Conversely, when the load is removed, the engine speed
will automatically drop back down to 2200 rpm within 10
seconds.
With AC loads of more than 150W (such as lighting
equipment, motor-powered tools, submersible water pumps,
etc.), the engine runs at high speed. When a no load condition
is produced, the engine automatically slows down.
Turn the idle control switch to the “ON” (up) position when
AC loads of more than 150W are connected. Turn the idle
control switch to the “OFF” (down) position when AC loads
of less than 100W or when a magnetic switch is used.
Excitation System
The DA7000 series generators use a brushless exciter to
create rated output electricity. This system will use the
mechanical energy generated by the 3600 RPM engine to
spin the rotor (or armature) inside the generator (or alternator
end).
Excitation current is sourced from the battery to the
excitation windinding in the stator. Current applied to this
coil creates a magnetic field. The rotating armature is
induced with AC current.
Engine
The DA7000 series generators are powered by a water-cooled,
4-cycle KUBOTA diesel engine. This engine is designed to
meet every performance requirement of the generator.
Reference Table 2, engine specifications.
In keeping with Multiquip's policy of constantly improving
its products, the specifications quoted herein are subject to
change without prior notice.
Figures 3 and 4 show the basic controls and indicators for
the DA7000 series generators.