Hypertherm XPR460 - Page 312

2. Tighten loose CAN cable connections between the plasma power supply, the cooler, and the gas
connect console.
3. Tighten loose connections on the control PCB chassis in the gas connect console.
4. Make sure that the D16 (+5 VDC) LED and the D18 (+3.3 VDC) LED are illuminated on the control
PCB.
D16 and D18 show that there is power to the PCB. Refer to Gas connect console control PCB
(141375) diagram on page 387.
5. Make sure that the D30 LED and the D31 LED on the control PCB are flashing one time per second.
A flashing LED shows that the mircoprocessor on the PCB is functional.
6. If the D24 LED and the D25 LED on the control PCB are flickering and you have diagnostic codes
600 and 602, do the following:
a. Make sure that the CAN cables between the plasma power supply and the cooler and between
the cooler and the gas connect console are connected.
b. Disconnect the CAN cable between the gas connect console and the TorchConnect console.
If you see this condition... Do these steps...
D24 and D25 stop flickering when
you disconnect the CAN cable.
1. There is a bad connection between the plasma power supply and
the cooler or between the cooler and the gas connect console.
Reconnect the CAN cable, or replace it if necessary.
2. There is a bad connection between the small CAN jumper cable for
the gas connect console control PCB and the sheet metal panel in
the gas connect console. Reconnect the CAN cable, or replace it if
necessary.
The control PCB in the gas con-
nect console is operating correctly
but you continue to see the same
diagnostic code.
There is a problem with one of the following cables. Continue with the
next step.
• The CAN cable between the gas connect console and the
TorchConnect console
• The small CAN jumper cable between the control PCB and the sheet
metal panel in the gas connect console
7. Disconnect these cables and examine them for sockets and pins that are bent:
a. If you find bent pins, make the bent pins straight.
b. If you find bent sockets or broken pins, get a new cable.
8. Examine D24 and D25 on the control PCB again:
Diagnostics and Troubleshooting
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811530 Instruction Manual XPR460