Lincoln Electric 718118 Spirit II 400 - Manual (Page 111)

Spirit II User’s Manual Section 6: Maintenance &Troubleshooting
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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 – ISC DOOR ISC 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 U34 – IMPULSE START Impulse start circuit energized
OPTO U37 – RHF HF transformer energized