Fronius VarioSynergic 3400 Instructions De Service page 105

Variosynergic Cause:
3400/4000/5000 Remedy:
power source
Cause:
(continued)
Remedy:
Irregular wirefeed speed, welding wire forms a loop between feed rollers and torch
wire inlet nozzle
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Wirefeeder motor not running / cannot be adjusted
Ready indicator lights up
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Welding wire is welded to the contact tube or weld pool
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Main torch body and hosepack become very hot
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Phase missing on the power source
Check mains lead, main switch and contactor
Secondary commutator faulty
Check commutator
Wirespool brake applied too lightly/strongly
Adjust wirespool brake
The borehole of the contact tube is too narrow
Use correct contact tube
Faulty wire feed liner in torch
Check liner for kinks, inner diameter, length, dirt, etc.
Feed rollers are unsuitable for the wire being used
Match up feed rollers and welding wire
Feed rollers have the wrong contact pressure
Optimize the contact pressure
Quality of welding wire is not up to standard
Change welding wire
Internal machine fault
Contact After-Sales Service
Faulty fuse F1, F2, F3 or F7
Check fuses
Wirefeeder motor faulty
Change wirefeeder motor (After-Sales Service)
Wirefeeder adjuster faulty
Change wirefeeder adjuster (After-Sales Service)
On separated version: Fault in interconnecting hosepack
Check hosepack connections
Internal machine fault
Contact After-Sales Service
Afterglow time adjuster has not been set to achieve optimum results
Correct afterglow time
Design dimensions of the torch are not sufficient for this task
Observe duty cycle and loading limit
On water-cooled machines: flow rate too low
Check water level, flow rate and cleanliness
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