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Three-Wire Start Circuits
976-0043-01-02
D–3
Onan™ 3-Wire Type Generators
Most Onan 3-wire type generators use a three-position, momentary type
switch to control their operation. To start the generator, the switch is held
in the “START” position, energizing the ignition system and cranking the
starter motor. Once the engine starts, the switch is released and returns to
a center off position. The starter motor stops cranking but the ignition
system remains energized. To shut down the generator, the switch is held
in the “STOP” position until the engine dies. When the switch is released,
it returns to the center position.
In this system, RY8 duplicates the “START” position and relay RY7 (in
the “GS” mode) duplicates the “STOP” position. Some generators use a
similar system with two push-button switches, one to start and one to stop
the generator. For diesel engines, select GS.
Many diesel generators are controlled like the Onan 3-wire type with the
exception that they also require glow plugs to be operated before a
generator start is attempted. The inverter’s automatic generator start
system allows for glow plug control. The addition of a relay between the
GSM and the generator may be required to operate the glow plugs (due to
the amperage) and to separate the stop signal circuit.
3-2 Wire Converters
Another option for three-wire start type generators is to use a 3-to-2 wire
converter. These vary from very simple relay types to very advanced
microprocessor types. Onan offers a simple 3-to-2 wire converter for
some of their generators that are known to work well for many
installations. Universal 3-to-2 wire converters can be used with virtually
any generator and can control glow plugs for diesel engines as well.
These can allow additional system components to signal the generator
start system to start.
For more information on these or additional generator hookup
information, consult your generator supplier or manufacturer.
Summary of Contents for SW Plus 2524
Page 2: ......
Page 3: ...Sine Wave Plus Inverter Charger Owner s Manual...
Page 82: ...2 48...
Page 105: ...DC Wiring 976 0043 01 02 3 23 Figure 3 13 DC Connections to a Single Inverter...
Page 107: ...DC Wiring 976 0043 01 02 3 25 Figure 3 14 DC Connections to Dual Inverters...
Page 126: ...3 44...
Page 132: ...4 6...
Page 141: ...Menu Map 976 0043 01 02 5 9 Figure 5 10 User Menu Map Part 2...
Page 143: ...Menu Map 976 0043 01 02 5 11 Figure 5 12 Basic Setup Menu Map Part 2...
Page 145: ...Menu Map 976 0043 01 02 5 13 Figure 5 14 Advanced Setup Menu Map Part 2...
Page 146: ...Navigation 5 14 976 0043 01 02 Figure 5 15 Complete User Menu Map...
Page 147: ...Menu Map 976 0043 01 02 5 15 Figure 5 16 Complete Basic Setup Menu Map...
Page 148: ...Navigation 5 16 976 0043 01 02 Figure 5 17 Complete Advanced Setup Menu Map...
Page 250: ...8 32...
Page 274: ...A 16...
Page 308: ...C 18...
Page 312: ...D 4...
Page 316: ...E 4...
Page 338: ...I 6...
Page 342: ...Index IX 4 976 0043 01 02...
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