Is the coolant flow in the permitted range?
Are the gas pressures in
the permitted range?
Continue to Pilot Arc state (9).
Continue to End of Cycle
state (14).
Is the Chopper 1 current more
than the minimum current?
Continue troubleshooting
steps to identify the problem.
Is the DC bus voltage in
the permitted range?
Set the high frequency circuit to ON
(ignition/arc started).
Does the Ignite state (8) complete
in 500 milliseconds?
Yes
Yes
No
No
No
Yes
Yes
No
Yes
No
■
If the Ignite state (8) completes correctly, the process continues with Pilot Arc state (9) on page 224.
■
If one or more of these measurements is not correct, the process continues with End of Cycle state
(14) on page 228:
□
Coolant flow
□
Gas pressure
□
DC bus voltage
Operation
6
223811530Instruction ManualXPR460
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