Latched Automatic - EWM tigSpeed continuous drive 45 hotwire Operating Instructions Manual

5.13.1.5 Latched automatic

The welding machine has to be set to a latched operating mode.
1. cycle (current)
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Press torch trigger 1 (BRT 1), the gas pre-flow time elapses.
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HF ignition pulses jump from the tungsten electrode to the workpiece. The arc ignites.
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Welding current flows.
2. cycle (current)
Release BRT 1.
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The welding current ramps up to the main current AMP in the selected up-slope time.
1. cycle (wire)
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The wire electrode is fed once the delay time (t-start) has elapsed.
3. cycle (current)
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Press BRT 1.
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The main current is reduced in the selected down-slope time.
2. cycle (wire)
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Wire electrode feeding is stopped, wire electrode is returned by the set wire return value.
4. cycle (current)
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Release BRT 1, the arc extinguishes.
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Shielding gas continues to flow in the selected gas post-flow time.
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By tapping you can switch to the reduced wire feeding.
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By pressing and releasing (tapping) BRT 1 again, wire feeding will stop. (It is not necessary to keep
the torch trigger pressed. This is especially helpful with long welding seams.)
Stopping the welding process:
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Keep BRT 1 pressed for a period longer than the set tapping time.
099-000236-EW501
21.10.2015
Configuring the welding machine for mechanical arc fusion welding
Figure 5-21
Design and function
49