Hypertherm XPR170 - Page 306

Diagnostics and Troubleshooting
8
306 810060 Instruction Manual XPR170
 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, continue with the following steps:
 Replace the CAN cable between the control board (141375) and the mixer.
 Disconnect the CAN cable between the gas connect console and torch connect
console.
 Make sure that the green LEDs on the mixer are functional, and that the XPR web
interface or CNC screen indicates that the cutting system is equipped with a OptiMix
gas connect console.
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. Look for CAN problems with the mixer inside of the OptiMix gas connect console. There are
3 LEDs located side-by-side. Look for the green LED. Examine the green LED on the board
of the mixer:
 If the green LED is blinking once-per-second and the yellow LED is flickering, the CAN
cable is good and the cutting system is ready for use.
 If the green LED is blinking once-per-second and the yellow LED is not illuminated, a
CAN communication failure can be the problem. Examine the CAN cable between the
control board (141375) and the mixer. Look for a loose connection or bent pins.
 If the green LED is blinking once-per-second and the red LED is illuminated (steady, no
flickering), the mixer in the gas connect console can be the problem. Contact your
cutting machine supplier or regional Hypertherm Technical Service team. Technical
Service can help you decide if it is necessary to replace the gas connect console.
8. For TCC codes, examine the CAN cable connections between the gas connect console and
the torch connect console:
a. Look for loose connections. Tighten loose connections if found.
b. Examine the control board (141334) inside of the torch connect console. Make sure that the
following LEDs are illuminated on the control board:
 D43 (+5 VDC)
 D46 (+3.3 VDC)
c. If D43 and D46 are not illuminated, use a digital volt meter to measure the power output for
PS1.
 If there is no 24 VDC output, examine the 120 VAC input to PS1. If there is no
120 VAC, examine the power cable connection to the torch connect console and the
120 VAC-out connection from the gas connect console. Tighten loose connections if
found.