Spirit II User’s Manual
Section 6: Maintenance &Troubleshooting
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6-5
Power Supply Microprocessor (DSP)
Status Indicators
The microprocessor DSP board controls all of the functions of the Spirit power
supply. It contains diagnostic LEDs and OPTO LEDs which aid in
troubleshooting the system. These indicators illuminate when a particular event
occurs. Illuminated LEDs indicate the following:
LED
Indication
D7 – RS232 OUT Isolated
Serial transmission
D10 – RS232 T1 OUT
Serial transmission
D11 – CAN RXD
CAN transmission
D12 – CAN TXD
CAN transmission
D24 – PWM
Chopper(s) energized
D33 – COOLANT LEVEL
Coolant reservoir level is sufficient
D36 – PLASMA START
Plasma start signal applied to Spirit
D37 – ARC HOLD
Arc hold input enabled
D38 – MARKING
Marking input enabled
D39 – CORNER
Corner current input enabled
D40 – EOFF
Off button disengaged
D41 – MOTION
Motion output signal activated
D42 – PLASMA READY
Power supply ready output signal activated
D43 – PAT
Pilot arc transistor energized
D48 – RMT ON/OFF
Remote On/Off input enabled
D50 – ASC DOOR
ASC door is closed
D77 – 3.3V uP PWR
3.3V Microprocessor power
D78 – 1.8V uP PWR
1.8V Microprocessor power
OPTO U21 – MTR/SOL
Coolant pump relay CR5 energized (Pump On)
OPTO U22 – PAR
Pilot arc relay energized
OPTO U23 – CON
DC power output (main contactor energized)
OPTO U24 – SURGE
CR3 and K1 (I/O PCB) relays energized
OPTO U26 – FAN
Fans energized
OPTO U27 – PREFLOW
Preflow gas valve 1 energized
OPTO U28 – PLASMA
Plasma gas valve 2 energized
OPTO U29 – SHIELD
Shield gas valve 3 energized
OPTO U30 – VENT
Vent gas valve 4 energized
OPTO U31 – POSTFLOW
Postflow gas valve 5 energized
OPTO U32 – MARKING
Marking gas valves 6 and 7 energized
OPTO U36 – IMPULSE
Impulse circuit energized
OPTO U37 – RHF
HF transformer energized