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TABLE OF CONTENTS
HPR260 Auto Gas
Instruction Manual
ix
5
Error code troubleshooting – 6 of 10.......................................................................................................................................5-16
Error code troubleshooting – 7 of 10.......................................................................................................................................5-17
Error code troubleshooting – 8 of 10.......................................................................................................................................5-18
Error code troubleshooting – 9 of 10.......................................................................................................................................5-19
Error code troubleshooting – 10 of 10 ....................................................................................................................................5-20
Power supply states ................................................................................................................................................................................5-21
Plasma system operation with pump time-out ..................................................................................................................................5-22
CNC operation with pump time-out ....................................................................................................................................................5-23
Initial checks..............................................................................................................................................................................................5-24
Power measurement ...............................................................................................................................................................................5-25
Power supply coolant system servicing..............................................................................................................................................5-26
Draining the coolant system. ......................................................................................................................................................5-26
Coolant system filter................................................................................................................................................................................5-27
Filter replacement..........................................................................................................................................................................5-27
Coolant flow troubleshooting chart .....................................................................................................................................................5-28
Coolant flow tests....................................................................................................................................................................................5-29
Before testing.................................................................................................................................................................................5-29
Using the Hypertherm flow meter (128933) ..........................................................................................................................5-29
Manual pump operation ...............................................................................................................................................................5-30
Test 1 – return line......................................................................................................................................................................5-31
Test 2 – supply line at ignition console .................................................................................................................................5-31
Test 3 – change the torch.........................................................................................................................................................5-32
Test 4 – supply line to the torch receptacle .........................................................................................................................5-32
Test 5 – return line from the torch receptacle......................................................................................................................5-32
Test 6 – bucket test at the pump ............................................................................................................................................5-33
Test 7 – bypass the check valve .............................................................................................................................................5-33
Pump and motor troubleshooting ..............................................................................................................................................5-34
Testing the flow switch.................................................................................................................................................................5-35
Gas leak tests...........................................................................................................................................................................................5-36
Power supply control board PCB3 .....................................................................................................................................................5-38
Power supply power distribution board PCB2.................................................................................................................................5-39
Start circuit PCB1...................................................................................................................................................................................5-40
Operation ........................................................................................................................................................................................5-40
Start circuit functional schematic ..............................................................................................................................................5-40
Start circuit troubleshooting .......................................................................................................................................................5-40
Pilot arc current levels ..................................................................................................................................................................5-42
Selection console control board PCB2 .............................................................................................................................................5-43
Selection console power distribution board PCB1.........................................................................................................................5-44
Selection console AC valve-driver board PCB3 ..............................................................................................................................5-45
Metering console control board PCB2 ..............................................................................................................................................5-46
Metering console power distribution board PCB1 ..........................................................................................................................5-47
Chopper tests...........................................................................................................................................................................................5-48
Phase-loss detection test ......................................................................................................................................................................5-50
Torch lead test ..........................................................................................................................................................................................5-51
Preventive maintenance..........................................................................................................................................................................5-52
