Hypertherm XPR300 - Page 280

Diagnostics and Troubleshooting
8
280 809480 Instruction Manual XPR300
556
Failure
DC exceeds
limit-Ch2
For a minimum of
10 milliseconds, the current
for Chopper 2 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
560
Error
Over temp-Ch1 The insulated-gate bipolar
transistor (IGBT) temperature
for Chopper 1 is more than
75°C (167°F).
Refer to Over temp diagnostic codes – Choppers
(560 – 561) and Coolant (587) on page 322.
Ramp down –
561
Error
Over temp-Ch2 The insulated-gate bipolar
transistor (IGBT) temperature
for Chopper 2 is more than
75°C (167°F).
Refer to Over temp diagnostic codes – Choppers
(560 – 561) and Coolant (587) on page 322.
Ramp down –
Diagnostic code
number and
category
Diagnostic code
name
Description Corrective action XPR action
Code cancels
with