Design and function
Shielding gas supply (shielding gas cylinder for welding machine)
099-000159-EW501
16.08.2016
39
5.10.8.3 Latched mode
Figure 5-22
1
st
cycle
• Press torch trigger 1; gas pre-flow time
elapses.
• HF ignition pulses jump from the electrode to the workpiece. The arc ignites.
• Welding current flows and immediately assumes the set ignition current
(search arc at minimum
setting). HF switches off.
2
nd
cycle
• Release torch trigger 1.
• The welding current ramps up to the main current
(AMP) in the selected up-slope time
.
Switching from the main current AMP to secondary current
(
AMP%
)
:
• Press torch trigger 2 or
• Tap torch trigger 1 (torch modes 1–4).
3
rd
cycle
• Press torch trigger 1.
• The main current decreases to the end-crater current
within the set down-slope time
.
4
th
cycle
• Release torch trigger 1; arc is extinguished.
• Set gas post-flow time
runs.
Ending the welding process immediately without a down-slope or end-crater current:
• Press the 1
st
torch trigger briefly > 3
rd
and 4
th
cycles (torch modes 11–14).
Current drops to zero and the gas post-flow time begins.
When the foot-operated remote control RTF is connected, the machine switches automatically to
non-latched operation.
The up- and down-slopes are switched off.
A double-digit torch mode (11-x) needs to be set at the welding machine control to use the
alternative welding start (tapping start). The number of torch modes available depends on the
machine type.
Содержание Tetrix 230 AC/DC Comfort 8P TM
Страница 63: ...Design and function MMA welding 099 000159 EW501 16 08 2016 63 EXIT 3s 2s Figure 5 51 ...
Страница 67: ...Design and function Machine configuration menu 099 000159 EW501 16 08 2016 67 l 0 3s 3s 3s Figure 5 53 ...
Страница 82: ...Appendix B Overview of EWM branches 82 099 000159 EW501 16 08 2016 11 Appendix B 11 1 Overview of EWM branches ...