Section 6.5

SHUTDOWN FEATURES

ADDITIONAL SHUTDOWN FEATURES

The A6060 Circuit Board also incorporates the follow- ing protective shutdown features:

LOSS OF 12-PIN CABLE SIGNALS TO INVERTER:

The generator will shutdown if the 12-pin connector is disconnected from the inverter when CB1 is turned to ON.

This shutdown will occur after approximately 5-7 seconds.

LOSS OF TIM1/TIM2 INPUT TO A6060 CIRCUIT BOARD:

If Timing Winding input is lost, the generator will immediately shutdown.

LOSS OF PS1/PS2 TO INVERTER:

A loss of voltage from PS1/PS2 windings to the inverter will simulate a 12-pin signal failure and cause a shutdown when CB1 is turned to ON.

This shutdown will occur after approximately 5-7 seconds.

OVERSPEED OF ENGINE:

Overspeed of the engine will result in an immediate shutdown. This automatic generator shutdown will occur at engine speed above 4200 rpm.

SHORT CIRCUIT PROTECTION:

If the inverter senses a short circuit on the AC output side it will automatically shut the generator down.

INVERTER OVERHEAT CONDITION:

If the inverter overheats, AC output will be shut off. The engine will continue to run for approximately two minutes and then shut down. The maximum ambient temperature rating is 120°F.

DC LINK VOLTAGE GREATER THAN 600 VDC:

If DC link voltage exceeds 600 VDC, the inverter will shut off AC power output.

DC LINK UNDER-VOLTAGE SHUTDOWN:

If DC link voltage drops below 100 VDC, the inverter will shut off AC power output.

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Generac Power Systems 940-2, 941-2 service manual Additional Shutdown Features
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941-2, 940-2 specifications

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