Hypertherm XPR170 - Page 280

Diagnostics and Troubleshooting
8
280 810060 Instruction Manual XPR170
623
Error
Ch1 DC at Idle Chopper 1 is in idle state and
the chopper current is more
than 10 A.
1. Look for 24 VDC from the power sources (J2
pins 1 – 3).
2. If you find 24 VDC from the power sources, the
chopper is bad.
3. Replace the chopper if necessary.
None Remote on-off
626
Alert
No DC output-Ch1 For a minimum of
250 milliseconds after
Arc-On State starts,
Chopper 1 does not make
current.
This code is applicable only
for processes that start with
argon (Ar) gas.
1. Inspect the consumable parts for damage and
excess wear.
2. If any consumable part needs replacement,
refer to Install the consumables on page 133.
3. If the code continues, contact your cutting
machine supplier or regional Hypertherm
Technical Service team.
End of cycle Remote on-off
631
Failure
DC at wait-start The current in the work lead
is more than 5 A while the
XPR cutting system is in the
Wait-for-Start State.
Refer to Current sensor diagnostic codes (631) on
page 321.
Shut down Remote on-off
640
Info
No error There are no active faults. No operator action necessary. None —
642
Info
System powered Power is supplied to the XPR
cutting system and the
customer-supplied, remote
on-off switch is in the ON
position (enabled).
None Start or set
process;
remote on-off
643
Info
No process loaded Power is supplied to the XPR
cutting system and no
process is selected.
Select a process to end the Initial checks (2) State
of operation and start the Gas purge State (there is
no limit for how long the system waits for input).
Refer to Sequence of operation on page 205.
None Start or set
process;
remote on-off
Diagnostic code
number and
category
Diagnostic code
name
Description Corrective action XPR action
Code cancels
with