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Troubleshooting
Troubleshooting
No number („PPU“) selectable for PullMig (PushPull Unit)
Cause:
„PMR4000 PullMig“ installation set is not installed
Remedy:
Install installation set
Number for PullMig (e.g. „PPU | 5“), for PushPull equalisation is not selectable
Cause:
Power source does not have „FS Drive“ software
Remedy:
Provide power source with „FS Drive“ software
PullMig feed rolls are not turning
Cause:
PullMig control plug is not plugged in
Remedy:
Connect PullMig control plug at torch control connection
Cause:
PullMig connection cable damaged
Remedy:
Check cable and replace if necessary
Irregular wire speed
Wire electrode forms a loop between feed rolls and wire inlet nozzle
Cause:
Feed rolls not suitable for wire electrode being used
Remedy:
Use appropriate feed rolls
Cause:
Wrong electrode pressure of PullMig or 4-roll drive
Remedy:
Optimise electrode pressure
Welding wire is deformed or breaks off
Cause:
Electrode pressure of PullMig or 4-roll drive set too high
Remedy:
Set electrode pressure of PullMig or 4-roll drive correctly
Cause:
PullMig turns too fast or too slow
Remedy:
Select right number (e.g. „PPU | 5“) for PullMig during PushPull equalisation
PullMig becomes too hot
Cause:
Inadequate cooling; water circulation too low or non-existent in cooling unit
Remedy:
Check whether PullMig is properly connected; check cooling unit and bleed if
necessary; check coolant throughflow for PullMig
EFd | xx.x, EFd | 8.1
Cause:
Wire drive blocked/faulty
Remedy:
Inspect/replace motor for wire drive
EFd | 8.2
Cause:
Fault in wire feed system (overcurrent in PullMig drive)
Remedy:
Lay hose pack out in as straight a line as possible; check liner for kink or dirt;
check contact pressure of PullMig feed rolls
EFd | 9.1
Cause:
External supply voltage: supply voltage has dropped below tolerance range
Remedy:
Check external supply voltage