2. Make sure that the chopper ID cable connector is fully engaged in J8 on each chopper in the plasma
power supply.
3. Examine the CAN cable connections:
If you see this condition... Do these steps...
You only have diagnostic code 504. Examine the CAN cable connections between Chopper 1 and Chopper 2 in the
plasma power supply:
1. Make sure that all cable connections are fully tightened.
2. If you find bent pins, make the bent pins straight.
3. If you find bent sockets or broken pins, get a new cable.
You have diagnostic codes 503 and
504 together (XPR300 and XPR460
only).
Examine the CAN cable connections between Chopper 2 and Chopper 3:
1. Make sure that all cable connections are fully tightened.
2. If you find bent pins, make the bent pins straight.
3. If you find bent sockets or broken pins, get a new cable.
You have diagnostic codes 504 and
505 together (XPR460 only).
Examine the CAN cable connection between Chopper 3 and the control PCB
(PCB 1) on the plasma power supply:
1. Make sure that all cable connections are fully tightened.
2. If you find bent pins, make the bent pins straight.
3. If you find bent sockets or broken pins, get a new cable.
You have other diagnostic codes. Continue with the next step.
4. Make sure that the green LED is illuminated on Chopper 1/PCB 2, Chopper 2/PCB 3, and Chopper
3/PCB 8 for the following:
□
D22 (+18/-5 VDC)
□
D14 (+5 VDC)
□
D21 (+3.3 VDC)
Each illuminated LED shows that there is power to that chopper control PCB (PCB 2, PCB 3, and
PCB 8).
5. If at least one LED is not illuminated, do the following:
If you see this condition... Do these steps...
No LED is illuminated. 1. Make sure that the J2 power connector is fully engaged.
2. Make sure that the wiring to the J2 connector is good.
3. Do a check for 24 VDC on J2 pin 1 and pin 3 for each chopper in the
system.
4. If the wiring is good and you continue to get the same diagnostic code,
speak to your cutting machine supplier or regional Hypertherm Technical
Service team.
Each LED is illuminated except for one
or two.
Replace the chopper control PCB if necessary. Speak to your cutting machine
supplier or regional Hypertherm Technical Service team.
Diagnostics and Troubleshooting
8
319811530Instruction ManualXPR460
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