Troubleshooting; General; Safety; Mig/Mag Welding - Current Limit - Fronius TPS 320i Operating Instructions Manual

Troubleshooting

General

The power sources are equipped with an intelligent safety system, meaning it has been
possible to dispense with nearly all fuses. After a possible malfunction has been remedied,
the power source can be used again as normal.
Possible malfunctions, warning notices or status codes are shown on the display as plain
text dialogues.

Safety

MIG/MAG welding "Current limit" is a safety function for MIG/MAG welding, whereby
– Current limit -
-
If the welding power is too high, the arc gets smaller and smaller and may be extinguished.
To stop the arc from being extinguished, the power source reduces the wire speed and
therefore the welding power.
A corresponding message appears in the status bar on the display.
Corrective measures
-
-
Power source
Power source does not function
troubleshooting
Mains switch is on, but indicators are not lit up
Cause:
Remedy:
Cause:
Remedy:
WARNING! An electric shock can be fatal. Before opening the device
- Turn the mains switch to the "O" position
- Unplug the machine from the mains
- Prevent it from being switched on again
- Using a suitable measuring instrument, check to make sure that electrically
charged components (e.g. capacitors) have discharged
CAUTION! Inadequate PE conductor connections can cause serious injury and
damage. The housing screws provide a suitable PE conductor connection for
earthing (grounding) the housing and must NOT be replaced by any other screws
which do not provide a reliable PE conductor connection.
it is possible to operate the power source at the power limit
process safety is ensured
Reduce one of the following welding power parameters:
Wire speed
Welding current
Welding voltage
Material thickness
Increase the distance between the contact tip and workpiece
There is a break in the mains lead; the mains plug is not plugged
in
Check the mains lead, ensure that the mains plug is plugged in
Mains socket or mains plug faulty
Replace faulty parts
159