CAN communication troubleshooting for gas connect consoles

Diagnostic codes 500, 507, 508, 510, 602

Do these steps if you get a diagnostic code that is related to Controller Area Network (CAN) communication issues with a Core™, CorePlus™, VWI™, or OptiMix™ gas connect console.

Multiple CAN diagnostic codes at the same time can identify a problem with the CAN cable. If there is only one code, the problem is more likely to be caused by what the code says and not by the CAN cable.

Symptoms


Code	Symptoms	XPR® models	XPR action	Code cancels with...
500	The main control Printed Circuit Board (PCB) cannot receive communications (at least once-per-second) from the gas connect console (Core, CorePlus, VWI, or OptiMix) through the CAN.	All models	Shut down	Remote on-off
507	There is a problem with the CAN when power is supplied to the cutting system.	All models	None	Remote on-off
508	The load on the CAN bus is more than capacity for 10 milliseconds or more.	All models	None	Remote on-off
510	The gas connect console (Core, CorePlus, VWI, or OptiMix) cannot receive communications (at least once-per-second) from the main control PCB through the CAN.	All models	None	Remote on-off
602	For a minimum of 30 seconds after power is supplied to the cutting system, the gas connect console (Core, CorePlus, VWI, or, OptiMix) does not identify itself to the main control PCB.	All models	Shut down	Remote on-off

Corrective action

Remove the power from the cutting system.
Tighten loose CAN cable connections between the plasma power supply and the gas connect console.
Tighten loose connections on the control PCB chassis in the gas connect console.
Make sure that the D16 (+5 VDC) Light Emitting Diode (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.
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.

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:

Make sure that the CAN cable between the plasma power supply and the gas connect console is connected.

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.	There is a bad connection between the plasma power supply and the gas connect console. Reconnect the CAN cable, or replace it if necessary. 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 connect 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

Disconnect these cables and examine them for sockets and pins that are bent:
1. If you find bent pins, make the bent pins straight.
2. If you find bent sockets or broken pins, get a new cable.

Examine D24 and D25 on the control PCB again:

If you see this condition...	Do these steps...
D24 and D25 are not illuminated and are not flickering.	Reconnect the CAN cable to the plasma power supply.
D24 is not illuminated, and D25 is flickering.	Examine the control PCB in the gas connect console for shorts. Look for a shorting block across pin 1 and pin 2 of J16. If there is a shorting block, remove it and start the cutting system again. If J16 is open, replace the control PCB.

If you cannot find or correct the problem, speak to your cutting machine supplier or regional Hypertherm® Technical Service team.