Gasboy CFN Series Diagnostic Manual - Manual (Page 211)

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.