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Layout (c05040 only), Led indicators – Gasboy CFN Series Diagnostic Manual User Manual

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Pump Control Unit

12/26/02

6-21

PUMP CONTROL POWER SUPPLY ASSEMBLY (C05040 W&M; C05059
FLEET)

The power supply assembly:

converts the AC line voltage to +5 and +12 VDC for the pump control circuitry

contains the AC power on/off switch

contains the AC power fuse

provides battery backup voltage to allow the PCU to operate for 10 seconds after a power
failure (C05040 only)

provides LED's for visual inspection of the DC voltages

provides an AC voltage power fail signal to warn the microprocessor of an impending power
failure

Layout (C05040 only)

LED Indicators

LED indicators are provided to give a quick visual inspection of the DC voltages.