Fronius MagicWave 1700 Job, Operating Instructions Manual

Page: 59 / 148

59
EN
TIG modes
Safety
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 "The Setup menu" section for information on the settings, setting range and units
of measurement of the available welding parameters.
Symbols and
their explanations
Pull back and hold the torch trig -
ger
Release the torch trigger Briefly pull back the torch trigger
(< 0.5 s)
Push forward and hold the torch
trigger Release the torch trigger
GPr
Gas pre-flow time
SPt
Spot welding time
I
S
Starting-current phase: the temperature is
raised gently at low welding current, so
that the filler metal can be positioned cor -
rectly
I
E
Final current 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.
t
S
Starting current time
t
E
Final current time
t
up
Upslope phase: the starting current is con -
tinuously increased until it reaches the
main current (welding current) I
1
t
down
Downslope phase: the welding current is
continuously lowered until it reaches the
end-crater current.