Hypertherm XPR300 - Page 272

Diagnostics and Troubleshooting
8
272 809480 Instruction Manual XPR300
521
Alert
Pilot arc t/o (no arc
transfer)
No current detected on the
work lead for 500
milliseconds after the pilot arc
current is established.
For a minimum of 3
milliseconds, the sensor in
the work lead is unable to
measure current greater than
the transfer reference value.
1. Make sure that the transfer height is correct.
2. Examine the consumables. Replace the
consumables that have damage or excess wear.
3. Do a torch lead test. Refer to How to test
continuity between the nozzle and workpiece on
page 342.
End of cycle Start or set
process;
remote on-off
522
Alert
Preflow t/o The cutting system cannot
complete the preflow routine
within 30 seconds.
1. Review the diagnostic code history for previous
gas-related codes. Previous codes can indicate
where to look for flow or pressure problems.
2. Examine the consumables, valves, and inlet
hoses. Make sure that they are correct. Replace
them if you find damage or excess wear.
End of cycle Start or set
process;
remote on-off
523
Error
Preflow purge t/o The preflow purge cannnot
get to the setpoint within
45 seconds.
None Set process;
remote on-off
524
Error
Cutflow purge t/o The cutflow purge cannnot
get to the setpoint within
45 seconds.
None Set process;
remote on-off
525
Error
Inert gas purge t/o The XPR cutting system is
unable to complete the N
2
purge within 45 seconds. The
process did not get selected.
None Set process;
remote on-off
Diagnostic code
number and
category
Diagnostic code
name
Description Corrective action XPR action
Code cancels
with