Operation
XPR300 Instruction Manual 809480 209
Gas purge/pump on State (3)
* A specialty purge (with either N
2
or air) occurs automatically if the process changes from a non mixed-fuel gas
to a mixed-fuel gas or F5 process (or the reverse). If the previous process was a water (H
2
O) process, then a
water purge is added to the gas purge. Refer to Automatic purges on page 215. If the previous process was
not H
2
O, or mixed-fuel gas, or F5, skip to the usual 2-stage gas purge.
** The length of time necessary to complete a purge is based on: 1) the type of operator-selected process that
the CNC or wireless device sends to the cutting system, 2) if this is the first process sent after the Powerup
State (1) starts, and 3) the type of previous operator-selected process.
Is a specialty purge necessary?*
Yes
Do a specialty purge.
No
Stage 1: Operate preflow gases.**
Turn ON the coolant pump and start coolant flow.
Stage 2: Operate cutflow gases.**
Measure the coolant flow rate.
Is the coolant flow within the acceptable range?
No
Diagnose and troubleshoot the problem. Refer to
Diagnostics and Troubleshooting on page 259.
Then, measure the coolant flow again.
Yes
Continue to Wait for start State (5) on page 210.
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