Fronius CMT 4000 Advanced, Operating Instructions Manual

Page: 97 / 212

MIG/MAG modes
General
WARNING!
Danger from incorrect operation.
Possible serious injury and damage to property.
▶
Do not use the functions described here until you have read and completely under-
stood these Operating Instructions.
▶
Do not use the functions described here until you have fully read and understood all
of the Operating Instructions for the system components, in particular the safety
rules!
See the Setup menu for information on settings, setting range and units of measurement
for the available parameters.
Symbols and
their explana-
tions
Press the torch trigger Hold the torch trigger Release the torch trigger
GPr
Gas pre-flow time
I-S
Starting-current phase: the base material is heated up rapidly, despite the high thermal
dissipation that occurs at the start of welding
SL
Slope: the starting current is continuously lowered as far as the welding current and
the welding current as far as the final current
I
Welding-current phase: uniform thermal input into the base material, whose temperat-
ure is raised by the advancing heat
I-E
Crater-fill phase: to prevent any local overheating of the base material due to heat
build-up towards the end of welding. This eliminates any risk of weld seam drop-
through.
GPo
Gas post-flow time
97
EN
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