EWM Tetrix 350 - Page 4

Contents
Notes on the use of these operating instructions
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099-004854-EW501
19.02.2014
5.8 TIG welding .................................................................................................................................. 40
5.8.1 Welding torch and workpiece line connection .............................................................. 40
5.8.2 Shielding gas supply (shielding gas cylinder for welding machine).............................. 41
5.8.2.1 Connecting the shielding gas supply ............................................................. 42
5.8.2.2 Setting the shielding gas quantity ................................................................. 43
5.8.2.3 Gas test ......................................................................................................... 43
5.8.2.4 “Purge hose package” function ..................................................................... 43
5.9 TIG Synergic operating principle .................................................................................................. 44
5.9.1 Synergic parameter setting in the functional sequence ................................................ 45
5.9.2 Conventional parameter setting in the functional sequence ......................................... 45
5.9.3 Set the operating principle (conventional/synergic) ...................................................... 46
5.9.4 Select welding task ....................................................................................................... 47
5.9.5 Select welding current .................................................................................................. 47
5.9.6 Welding data display ..................................................................................................... 48
5.9.6.1 Welding parameter setting ............................................................................ 48
5.9.7 Arc ignition .................................................................................................................... 49
5.9.7.1 HF ignition ..................................................................................................... 49
5.9.7.2 Liftarc ignition ................................................................................................ 49
5.9.8 TIG automatic cut-out ................................................................................................... 49
5.9.9 Optimising the ignition characteristics for pure tungsten electrodes ............................ 50
5.9.10 Optimal and fast spherical cup formation ..................................................................... 50
5.9.11 Function sequences/operating modes .......................................................................... 51
5.9.11.1 Explanation of symbols ................................................................................. 51
5.9.11.2 Non-latched mode ......................................................................................... 52
5.9.11.3 Latched mode ................................................................................................ 53
5.9.11.4 TIG spotArc ................................................................................................... 54
5.9.11.5 Spotmatic ...................................................................................................... 56
5.9.11.6 Non-latched operation, version C .................................................................. 58
5.9.12 Pulses, function sequences .......................................................................................... 59
5.9.12.1 TIG pulses – non-latched operation .............................................................. 59
5.9.12.2 TIG pulses - latched operation ...................................................................... 59
5.9.13 Pulse variants ............................................................................................................... 60
5.9.13.1 Pulses (thermal pulses) ................................................................................. 60
5.9.13.2 KHz pulses (metallurgic pulses) .................................................................... 61
5.9.13.3 Automated pulses .......................................................................................... 61
5.9.13.4 AC pulses ...................................................................................................... 62
5.9.13.5 AC special ..................................................................................................... 62
5.9.14 TIG activArc welding ..................................................................................................... 63
5.9.15 Welding torch (operating variants) ................................................................................ 64
5.9.15.1 Tap torch trigger (tapping function) ............................................................... 64
5.9.16 Torch mode and up/down speed setting ...................................................................... 65
5.9.16.1 Standard TIG torch (5-pole) .......................................................................... 66
5.9.17 Setting the first increment ............................................................................................. 68
5.10 MMA welding ................................................................................................................................ 69
5.10.1 Connecting the electrode holder and workpiece lead .................................................. 69
5.10.2 Selection and adjustment ............................................................................................. 71
5.10.3 Welding current polarity reversal (polarity reversal) ..................................................... 71
5.10.3.1 Selection and adjustment .............................................................................. 71
5.10.4 Frequency and balance setting..................................................................................... 72
5.10.5 Hotstart ......................................................................................................................... 72
5.10.5.1 Hotstart current .............................................................................................. 72
5.10.5.2 Hotstart time .................................................................................................. 73
5.10.6 Arcforce ......................................................................................................................... 73
5.10.7 Antistick ......................................................................................................................... 73