29
EN
Troubleshooting
(continued)
Insufficient penetration when spot welding
Cause:
spot-welding time too short
Remedy:
increase spot-welding time using the spot-welding adjuster
Cause:
spot welding power too low
Remedy:
move stage switch to next higher setting (possibly use CO2 as shielding
gas)
Cause:
wirefeed speed too low
Remedy:
increase wirefeed speed
The following faults can only be rectified by After-Sales Service. Please contact After-
Sales Service, quote the power source serial number and give a detailed account of the
fault.
WARNING!
Operating the equipment incorrectly can cause serious injury and
damage. The following faults must only be rectified by Fronius-trained quali-
fied personnel! Pay particular attention to the “Safety rules” section.
Unsteady arc, severe spattering, pores in the welding material
Cause:
phase missing from mains side
Remedy:
check mains fuses, mains socket and plug, voltage on power source main
contactor; change contactor if necessary
Wirefeed speed cannot be adjusted
Wirefeeder motor not running
Cause:
faulty wirefeed speed adjuster
Remedy:
replace MR26A PCB
Cause:
control faulty
Remedy:
replace MR26A PCB
Cause:
wirefeeder motor faulty
Remedy:
replace wirefeeder motor
No arc after torch trigger is pressed
Mains switch is ON, ready indicator is lit up, wirefeeder running
Cause:
main contactor or stage switch is faulty
Remedy:
replace contactor/stage switch
Operating mode selector switch does not function
Cause:
control or switch faulty
Remedy:
replace MR26A PCB
Содержание 3100 CSA
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