Fronius AccuPocket 150/400 TIG, Operating Instructions Manual

Page: 65 / 88

In some cases, arc breaks during welding
Electrode (e.g. grooved electrode) voltage too high
If possible, use alternative electrode or a power source with more
welding power
Comfort Stop Sensitivity (CSS) setting is too sensitive
Increase or deactivate the CSS value in the Setup menu
Break voltage (Uco) set too low
Increase break voltage (Uco) in Setup menu
Cause:
Remedy:
Cause:
Remedy:
Cause:
Remedy:
Rod electrode tends to stick
Value of arc-force dynamic parameter (MMA welding) set too low
Increase value of arc-force dynamic parameter Cause:
Remedy:
Poor weld properties
(severe spattering)
Incorrect electrode polarity
Reverse electrode polarity (refer to manufacturer's instructions)
Poor grounding (earthing) connection
Fasten earthing clamps directly to workpiece
Setup parameters not ideal for selected welding process
Select the optimal settings in the Setup menu for the selected weld-
ing process
Cause:
Remedy:
Cause:
Remedy:
Cause:
Remedy:
Tungsten electrode melting
Tungsten inclusions in base metal during the ignition phase
Incorrect tungsten electrode polarity
Connect the TIG welding torch to the (-) current socket
Incorrect (or no) shielding gas
Use inert shielding gas (argon)
Cause:
Remedy:
Cause:
Remedy:
VRD does not light up even though no welding process is taking place
VRD option not present
or internal device fault
Contact after-sales service Cause:
Remedy:
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