Diagnostics and Troubleshooting
316 810060 Instruction Manual XPR170
g. If the resistance remains below the minimum ohmic value or does not change after you allow
the coolant to reach 85ºC (185ºF) or below, do one or more of the following steps, based
on the diagnostic code(s):
Replace chopper 1 (PCB 2) for error code 560 (over temp-Ch1).
Replace copper pipe thermistor assembly for error code 587 (Over temp-Coolant).
h. If the resistance is within range, continue cutting system operation.
i. If the thermistor resistance is within range when the thermistor is disconnected from the
control PCB and the code continues when the thermistor is reconnected to the control
PCB, contact your cutting machine supplier or regional Hypertherm Technical Service team.
They can help you decide if control PCB replacement is necessary. Refer to Plasma power
supply control PCB (141322) on page 342 or Plasma power supply chopper PCB
(141319) on page 345.
9. If the code continues, or if you cannot find or resolve the problem with these corrective actions,
contact your cutting machine supplier or regional Hypertherm Technical Service team.
Start switch diagnostic codes (570 – 577)
1. Use the CNC or XPR web interface to verify the status of the cutting system. Make sure that a
cutting sequence is not active.
2. Remove the power from the cutting system. Refer to Remove the power from the cutting system
on page 238.
3. Remove the control-side panel from the plasma power supply.
4. Supply power to the cutting system.
5. If the code continues after you supply power to the cutting system, examine LED D50 on
PCB 1. Look for illumination.
6. If the LED is not illuminated, there is a CNC problem.
Refer to the instruction manual that came with your CNC for
troubleshooting recommendations.
WARNING
ELECTRIC SHOCK CAN KILL
Disconnect electrical power before doing troubleshooting or diagnostic work.
All work requiring removal of the plasma power supply outer cover or panels
must be done by a qualified technician.
See the Safety and Compliance Manual (80669C) for more safety
information.
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