Hypertherm XPR300 User Manual

Diagnostics and Troubleshooting
8
314 809480 Instruction Manual XPR300
7. For OptiMix GCC codes, examine the CAN cable connections between the plasma power
supply and gas connect console:
a. Look for loose connections. Tighten loose connections if found.
b. Make sure that the control board (141375) inside of the gas connect console is tightly
mounted to the chassis. Tighten loose connections if found.
c. Examine the control board inside of the gas connect console. Make sure that the following
LEDs are illuminated on the control board:
 D16 (+5 VDC)
 D18 (+3.3 VDC)

These LEDs indicate power to the PCB. Refer to PCB information on
page 350.
d. If the LEDs are illuminated, examine LEDs D30 and D31. Look for once-per-second blinking
(indicates the microprocessor on the PCB is functional).
e. If LED D30 and D31 are blinking once-per-second, examine LEDs D24 and D25. Flickering
indicates the microprocessor on the PCB is functional.
f. If LED D24 and D25 are flickering and you have codes 600 and 602, make sure that the
connection between the main power supply and gas connect console is good:
 Make sure that the CAN cable between the plasma power supply and gas connect
console is connected.
 Disconnect the CAN cable connection between the gas connect control board
(141375) and the mixer in the same console.

The gas connect console, mixer, and torch connect consoles can appear
to communicate, even when the CAN cable between them is
disconnected.
g. If D24 and D25 stop flickering, the CAN cable is bad. One of the following conditions can
be the problem:
 The CAN cable is damaged. Use a Ohm meter to verify the continuity at the end of each
connector of the CAN cable. Verify pin-by-pin and in the same order as the CAN
connectors. For example, Pin_1 on End A corresponds to Pin_1 on End B of the cable.
Replace the cable if no continuity is found.
 There is a bad connection between the plasma power supply and the gas connect
console. Reconnect or replace the CAN cable if necessary.
 There is a bad connection between the small CAN jumper cable for the gas connect
console control board (141375) and the sheet metal (located inside of the gas connect
console). Reconnect or replace the CAN cable if necessary.
3
1
2
4
5
1 2
4 3
5
End A End B

Hypertherm XPR300 Specifications

General

Brand	Hypertherm
Model	XPR300
Category	Welding System
Language	English