Hypertherm XPR300 - Page 308

Diagnostics and Troubleshooting
8
308 809480 Instruction Manual XPR300
772
Alert
High Inlet – Line A Line A inlet pressure (P2) is
more than 9.99 bar (145 psi).
Lower the air or O
2
inlet pressure. Ramp down Set process;
remote on-off
774
Alert
P5 >=P2 Line A (H
2
-mix) outlet
pressure (P5) exceeds air
inlet pressure (P2) and Line A
type is “mix.” The system will
automatically stop cutting
system operation.
Increase air inlet pressure. Ramp down Set process;
remote on-off
775
Alert
Node update Informs the status of the node
update. The alert occurs
when the PCB updates via
wireless connection.
Refer to the XPR Firmware Updates Field Service
Bulletin (809820).
None Start or set
process;
remote on-off
776
Alert
Wifi reset The GS2011 wireless
module has been reset.
Reduce wireless connections to the XPR cutting
system.
None Start or set
process;
remote on-off
777
Alert
Pilot relay fault The pilot relay driver detects
an over current condition.
1. Remove the power for the XPR cutting system.
2. Remove the control-side panel from the plasma
power supply.
3. Examine the control PCB (PCB 1).
4. Remove J6 from the control PCB.
5. Remove the cover from the pilot arc relay.
6. Use an ohmmeter to measure the coil
resistance across wires 21 and 22. You can
expect a resistance of approximately 280 ohms.
7. If the ohms value is more than 10% above or
below 280 ohms, replace the pilot arc relay.
8. If the ohms value is within acceptable range,
make sure that you have the most recent XPR
firmware. You can log into the Xnet at
www.hypertherm.com to download it.
None Set process;
remote on-off
Diagnostic code
number and
category
Diagnostic code
name
Description Corrective action XPR action
Code cancels
with