Hypertherm XPR300 User Manual

Diagnostics and Troubleshooting
8
XPR300 Instruction Manual 809480 313
b. If the connections are good, make sure that the control board inside of the gas connect
console is tightly mounted to the chassis. Tighten loose connections if found.
c. Examine control board (141375) inside of the gas connect console. Make sure that the
following LEDs are illuminated:
 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 console and torch
connect console.
g. If D24 and D25 stop flickering, one of the following conditions can be the problem:
 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.
h. If the control board is functional and the code continues, there is a problem with either the
CAN cable between the gas connect console and torch connect console or with the small
CAN jumper cable for the gas connect console control board (141375) and the sheet metal
(located inside of the gas connect console). Continue with the following steps to identify the
problem cable:
 Disconnect and examine each cable. Look for look loose connections, bent pins, and
bent sockets.
 Tighten loose connections if found.
 If you find bent sockets, order a new cable.
 If you find a bent pin, try to straighten it. If this does not work, order a new cable.
i. If D24 and D25 are not illuminated and not flickering, the CAN cable to the plasma power
supply is disconnected. Reconnect the CAN cable if necessary.
j. If D24 is not illuminated and D25 is flickering, examine the control board for shorts. Look for
a shorting block across pins 1 and 2 of J16.
k. If there is a shorting block, remove it and restart the cutting system.
l. If J16 is open, replace the control board (141375).

Hypertherm XPR300 Specifications

General

Brand	Hypertherm
Model	XPR300
Category	Welding System
Language	English