Power Outlets

The generator has the following single and 3-phase receptacles.

zSingle Phase

One Duplex NEMA (GFCI) 5-20R (120V, 30 Amp) One Twist Lock NEMA L5-30R (120V, 30 Amp) One Twist Lock NEMA L6-20R (240V, 20 Amp)

z3- Phase

ThreeTwist Lock NEMA 7410 (240V, 30 Amp)

Full Power Switch

The unit is provided with a full power switch. Figures 2 and 3 show simplified wiring diagrams of the dual voltage system.

When the full power switch is in the 120 volt (up) position, you can take up full rated power of the generator at 120 volts from the single duplex receptacle, single locking type 120 volt receptacle, or a combination of these receptacles as long as the total load does not exceed the generating set capacity.

Figure 2. 120 V Simplified Diagram (Switch Up)

NOTE

When the switch is in the 120 V position, the locking type 240 volt receptacle cannot be used.

When the switch is in the 240 volt (down) position, you can take up to half of the rated power of the generating set at 120 volts from the duplex receptacle and up to half of the rated power of the set at 120 volts from the locking type 120 volt receptacle; or full rated power of the set at 240 volts from the locking type 240 volt receptacle.

GDP-5000H — INSTRUMENTATION

CAUTION :

When using a combination of dual receptacles, total load should not exceed the rated capacity of the generator.

60 Hz Circuit Breaker

This breaker protects the generator from short circuiting or overloading from the 60 Hz single phase load.

The 180 Hz Leakage Breaker

The 180 Hz leakage breaker (Figure 4) is a earth leakage breaker with the following conditions:

zThe circuit is broken when the load side shorts or there is over current.

zDuring use it detects when there is defective insulation on the load side and breaks the circuit in response.

Idle Control Switch (both 60 and 180 Hz)

The unit is provided with an automatic idle control for noise suppression and fuel cost reduction. The automatic idle control automatically engages under a no-load condition.

With the automatic idle control switched “ON”, the engine revolutions will automatically drop to about 2500 rpm (low- speed operation) within 3 seconds after the load stops.When the operation is resumed, the engine speed is automatically increased to about 3600 rpm (high-speed operation) as soon as the load is connected.

Fuel Gauge

The fuel gauge is located on the fuel tank and allows easy monitoring of the fuel level.

ACVoltmeter

This voltmeter indicates output voltage for both 60 and 180 Hz phases. In addition this voltmeter can also be used as a diagnostic tool.

If the voltmeter indicator (needle) is elow the rated voltage, engine problems may exist (low/high RPM's). To prevent damage to the generator or power tools turn the generator OFF and consult your authorized Multiquip service dealer.

Figure 3. 120/240V Simplified Diagram (Sw Dn.)

PAGE 14 — GDP-5000H A.C. GENERATOR— OPERATION AND PARTS MANUAL — REV. #2 (07/23/08)

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Multiquip GBP5000H manual GDP-5000H Instrumentation