Fronius MTG 2100 S, Service Manual

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Err tf0
Temperature sensor on the PC board LSTMAG20 faulty (secondary circuit)
Replace LSTMAG20 PC board Cause:
Remedy:
Err tf2
Temperature sensor fault in power source secondary circuit (short circuit or
interruption)
Check cable harness and replace temperature sensor on secondary rectifier Cause:
Remedy:
Err tf3
Faulty temperature sensor on the PC board LSTMAG20 (motor controller)
Replace LSTMAG20 PC board Cause:
Remedy:
Err tf6
Faulty temperature sensor on the PC board LSTMAG20 (voltage doubler)
Replace LSTMAG20 PC board Cause:
Remedy:
Err tf7
Temperature sensor fault on LSTMAG20 PC board (Kernel)
Replace LSTMAG20 PC board Cause:
Remedy:
Err tf8
Temperature sensor fault on LSTMAG20 PC board (power module)
Replace LSTMAG20 PC board Cause:
Remedy:
Err tf9
Temperature sensor fault on LSTMAG20 PC board (PFC module)
Replace LSTMAG20 PC board Cause:
Remedy:
Err tfA
Temperature sensor fault on PC board (PFC)
Replace LSTMAG20 PC board Cause:
Remedy:
no Prg
No saved program selected
Select saved program Cause:
Remedy:
No IGn
"Ignition time-out" function is active; current did not start flowing before the
length of wire specified in the set-up menu had been fed. The power source
safety cut-out has tripped.
Shorten the end of the wire; press the torch trigger again; clean the surface
of the workpiece; if necessary, increase the wire length until the safety cut-
out trips in "Set-up menu: Level 2". Cause:
Remedy:
EPG 35
RL calibration has failed
Check grounding cable, current cable or hosepack and replace if necessary,
restart RL calibration Cause:
Remedy:
toF xxx
The power source safety cut-out has tripped in order to prevent the mains
fuse from tripping.
After a pause in welding of around 90 s, the message disappears and the
power source is operational again. Cause:
Remedy:
20