Code Symptoms XPR models XPR action Code cancels with...
626 For a minimum of 250 milliseconds after the Arc-on
state starts, Chopper 1 does not make current.
This code is applicable only for processes that start
with argon (Ar) gas.
All models
627 For a minimum of 250 milliseconds after the Arc-on
state starts, Chopper 2 does not make current.
XPR300,
XPR460
628 For a minimum of 250 milliseconds after the Arc-on
state starts, Chopper 3 does not make current.
XPR460
End of cycle Remote on-off
Corrective action
1. Examine the consumable parts for damage and excess wear.
2. If a consumable part must be replaced, refer to Install the consumables on page 149.
3. If you cannot find or correct the problem, speak to your cutting machine supplier or regional
Hypertherm Technical Service team.
Troubleshooting for a ramp-down error
Diagnostic code 620
Diagnostic code 620 shows that there is a ramp-down error.
Symptoms
Code Symptoms XPR models XPR action Code cancels with...
620 The chopper duty cycle is more than the pro-
grammed limit. A ramp-down error can be the
cause:
• During a ramp-down error, the arc distance
between the torch and the workpiece increases
quickly.
• Ramp-down errors can decrease consumable life.
• The plasma cutting system can sense and react to
ramp-down errors. This helps to increase the life of
consumable parts. Refer to Automatic ramp-down
error protection on page 245.
All models Ramp down • Start or set process
• Remote on-off
Diagnostics and Troubleshooting
8
342
811530 Instruction Manual XPR460
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