Contents
Notes on the use of these operating instructions
299-020200-TWD01
14.07.2017
3
1
Contents
1
Contents .................................................................................................................................................. 3
2
For your safety ....................................................................................................................................... 5
2.1
Notes on the use of these operating instructions .......................................................................... 5
2.2
Explanation of icons ....................................................................................................................... 6
2.3
Part of the complete documentation .............................................................................................. 7
2.4
Safety instructions .......................................................................................................................... 7
2.5
Transport and installation ............................................................................................................ 11
3
Intended use ......................................................................................................................................... 13
3.1
Applications .................................................................................................................................. 13
3.2
Documents which also apply ....................................................................................................... 13
3.2.1
Warranty ....................................................................................................................... 13
3.2.2
Declaration of Conformity ............................................................................................. 13
3.2.3
Welding in environments with increased electrical hazards ......................................... 13
3.2.4
Service documents (spare parts and circuit diagrams) ................................................ 13
3.2.5
Calibration/Validation ................................................................................................... 13
4
Machine description
– quick overview .............................................................................................. 14
4.1
Front view .................................................................................................................................... 14
4.2
Rear view ..................................................................................................................................... 15
4.3
Machine control
– Operating elements ........................................................................................ 16
5
Design and function ............................................................................................................................. 18
5.1
Transport and installation ............................................................................................................ 18
5.1.1
Ambient conditions ....................................................................................................... 18
5.1.1.1
In operation ................................................................................................... 18
5.1.1.2
Transport and storage ................................................................................... 18
5.1.2
Machine cooling ............................................................................................................ 18
5.1.3
Workpiece lead, general ............................................................................................... 19
5.1.4
Adjusting the length of the carrying strap ..................................................................... 19
5.1.5
Welding torch cooling system ....................................................................................... 20
5.1.5.1
Welding torch cooling unit connection .......................................................... 20
5.1.6
Notes on the installation of welding current leads ........................................................ 21
5.1.6.1
Stray welding currents................................................................................... 22
5.1.7
Mains connection .......................................................................................................... 23
5.1.7.1
Mains configuration ....................................................................................... 23
5.2
Welding data display .................................................................................................................... 23
5.3
TIG welding .................................................................................................................................. 24
5.3.1
Welding torch and workpiece line connection .............................................................. 24
5.3.1.1
Connection assignment, welding torch control cable .................................... 25
5.3.2
Shielding gas supply (shielding gas cylinder for welding machine) ............................. 25
5.3.2.1
Connecting the shielding gas supply ............................................................ 25
5.3.3
Welding task selection .................................................................................................. 26
5.3.4
AC welding ................................................................................................................... 27
5.3.4.1
AC balance (optimise cleaning effect and penetration characteristics) ........ 27
5.3.5
Gas test
– setting the shielding gas volume ................................................................. 27
5.3.6
Arc ignition .................................................................................................................... 28
5.3.6.1
HF ignition ..................................................................................................... 28
5.3.6.2
Liftarc ............................................................................................................ 28
5.3.6.3
Automatic cut-out .......................................................................................... 28
5.3.7
Operating modes (functional sequences) .................................................................... 29
5.3.7.1
Explanation of symbols ................................................................................. 29
5.3.7.2
Non-latched mode ......................................................................................... 30
5.3.7.3
Latched mode ............................................................................................... 31
5.3.7.4
Average value pulsing ................................................................................... 32
5.3.8
TIG antistick .................................................................................................................. 32
5.3.9
Welding torch (operating variants) ............................................................................... 33
5.3.9.1
Tapping function (tap torch trigger) ............................................................... 33
5.3.9.2
Welding torch mode ...................................................................................... 33