Hypertherm HPR130 Manual Gas - Section 5 MAINTENANCE

5
HPR130 Manual Gas Instruction Manual 5-1
Section 5
MAINTENANCE
In this section:
Introduction ...............................................................................................................................................................5-2
Routine maintenance................................................................................................................................................5-2
System description ...................................................................................................................................................5-3
Control and signal cables.................................................................................................................................5-3
Sequence of operation..............................................................................................................................................5-4
PCB diagram ............................................................................................................................................................5-5
Error codes ...............................................................................................................................................................5-6
Error code troubleshooting – 1 of 6..................................................................................................................5-7
Error code troubleshooting – 2 of 6..................................................................................................................5-8
Error code troubleshooting – 3 of 6..................................................................................................................5-9
Error code troubleshooting – 4 of 6................................................................................................................5-10
Error code troubleshooting – 5 of 6 ................................................................................................................5-11
Error code troubleshooting – 6 of 6................................................................................................................5-12
Power supply states................................................................................................................................................5-13
Plasma system operation with pump timeout .........................................................................................................5-14
CNC operation with pump timeout..........................................................................................................................5-15
Initial checks ...........................................................................................................................................................5-16
Power measurement...............................................................................................................................................5-17
Power supply coolant system servicing ..................................................................................................................5-18
Draining the coolant system...........................................................................................................................5-18
Coolant system filter and strainer ...........................................................................................................................5-19
Filter replacement ..........................................................................................................................................5-19
Pump strainer cleaning ..................................................................................................................................5-19
Coolant flow test procedure ....................................................................................................................................5-20
Testing the flow switch ...................................................................................................................................5-21
Gas leak test procedure..........................................................................................................................................5-22
Power supply control board PCB3..........................................................................................................................5-23
Power supply power distribution board PCB2 ........................................................................................................5-24
Start circuit PCB1 ...................................................................................................................................................5-25
Operation .......................................................................................................................................................5-25
Start circuit functional schematic....................................................................................................................5-25
Start circuit troubleshooting............................................................................................................................5-25
Pilot arc current levels....................................................................................................................................5-27
Gas console control board PCB2 ...........................................................................................................................5-28
Gas console power distribution PCB1 ....................................................................................................................5-29
Gas console AC valve-driver PCB3 ........................................................................................................................5-30
Chopper module test procedure .............................................................................................................................5-31
Phase-loss detection test........................................................................................................................................5-33
Torch lead test ........................................................................................................................................................5-34
Preventive maintenance .........................................................................................................................................5-35