Fault Diagnosis - Fronius TransPocket 2500 Instructions De Service

Fault diagnosis

Poor ignition properties during rod electrode (MMA) welding
(continued)
Cause:
Remedy:
In some cases arc breaks during welding
Cause:
Remedy:
Cause:
Remedy:
Cause:
Remedy:
Rod electrode tends to stick
Cause:
Remedy:
Mains fuse or automatic circuit breaker trips
Cause:
Remedy:
Cause:
Remedy:
Poor welding properties
(severe spattering)
Cause:
Remedy:
Cause:
Remedy:
Cause:
Remedy:
TIG welding
Tungsten electrode melting - tungsten inclusions in base metal during the ignition phase
Cause:
Remedy:
Cause:
Remedy:
Cause:
Remedy:
Incorrect process selected
Select „Rod electrode (MMA) welding" or „Rod electrode (MMA) welding
with CEL electrode" process
TIG-Comfort-Stop parameter value set too low for selected TIG welding
process
Adjust the TIG-Comfort-Stop parameter to a higher value in the set-up
menu
Electrode voltage too high (e.g. grooved electrode)
If possible, use alternative electrode or more powerful welding machine
Incorrect process selected
Select „TIG welding" or „TIG pulsed arc welding" process
Value of arc-force dynamic parameter (rod electrode (MMA) welding) or
characteristic parameter (rod electrode (MMA) welding with CEL electrode)
set too low
Adjust arc-force dynamic/characteristic parameter to a higher value in set-
up menu
Mains fuse underrated/incorrect circuit breaker
Fuse mains correctly (see Technical data)
Mains fuse trips in idle
Have machine serviced
Incorrect electrode polarity
Reverse electrode polarity (refer to manufacturer's instructions)
Poor earth connection
Fasten grounding (earthing) clamp directly to workpiece
Set-up setting not ideal for selected process
Select best setting in set-up menu for selected process
Incorrect tungsten electrode polarity
Connect TIG welding torch to negative pole
Incorrect (or no) shielding gas
Use inert shielding gas (argon)
Incorrect process selected
Select TIG welding or TIG pulsed arc welding process (TP 2500 TIG)
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