Hypertherm XPR300 - Page 278

Diagnostics and Troubleshooting
8
278 809480 Instruction Manual XPR300
553
Alert
DC below
limit-Ch2
The Chopper 2 current
decreases below 50% of the
setpoint for 50 milliseconds
and the setpoint is more than
10 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.
End of cycle Set process;
remote on-off
Diagnostic code
number and
category
Diagnostic code
name
Description Corrective action XPR action
Code cancels
with