Hypertherm XPR170 - Page 274

Diagnostics and Troubleshooting
8
274 810060 Instruction Manual XPR170
550
Alert
No plasma arc For a minimum of
10 milliseconds during a
Steady State, the total
current decreases 50%
below the current setpoint,
and the setpoint is more than
the setpoint for that process
(setpoints vary by process
type).
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. Make sureExamine the following components:
•Chopper
• Inductor
6. Replace the damaged chopper or inductor if
found.
7. Make sure that the arc remains on the
workpiece during cutting.
8. If the code continues, contact your cutting
machine supplier or regional Hypertherm
Technical Service team.
End of cycle Start or set
process;
remote on-off
552
Alert
DC below
limit-Ch1
The Chopper 1 current
decreases below 50% of the
setpoint for 50 milliseconds
and the setpoint is more than
10 A.
End of cycle Set process;
remote on-off
Diagnostic code
number and
category
Diagnostic code
name
Description Corrective action XPR action
Code cancels
with