Hypertherm XPR300 - Page 279

Diagnostics and Troubleshooting
8
XPR300 Instruction Manual 809480 279
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Failure
DC exceeds
limit-Ch1
For a minimum of
10 milliseconds, the electric
current for Chopper 1 is more
than 170 A.
1. Examine the consumables. Replace the
consumables that have damage or excess wear.
2. Do a test for gas leaks. Replace the leaking
components if found.
3. Examine contactors. Replace the damaged
components if found.
4. Look for DC bus errors.
5. Exchange the choppers. Make sure the code
follows the change.
• If yes, it confirms the bad chopper. Replace it.
• If no, go to step 6.
6. Examine the following components:
•Choppers
• Inductors
7. Replace the damaged choppers or inductors if
found.
8. Make sure that the arc remains on the
workpiece during XPR cutting system
operation.
9. If the code continues, contact your cutting
machine supplier or regional Hypertherm
Technical Service team.
Shut down Remote on-off
Diagnostic code
number and
category
Diagnostic code
name
Description Corrective action XPR action
Code cancels
with