Commissioning
TIG welding
68
Item No.: 099-004877-EWM01
6.7
TIG welding
6.7.1
Welding torch connection
We can only guarantee the perfect functioning of our machines when used with our range of
welding torches.
The welding torches being used must meet the following conditions (see also the operating
instructions for the torch):
• The torch trigger control lead must not be shielded.
• Only torches with an insulated crown nut on the gas connection lead may be used.
There is an open circuit voltage or welding voltage on the G1/4” connecting nipple for shielding
gas (front of the machine). If welding is carried out alternately using TIG and MMA welding and if a
welding torch and an electrode holder are connected to the machine, the open-circuit or welding
voltage is applied simultaneously to both. The torch and the electrode holder should therefore
always be placed on an insulated surface before starting work and during breaks.
Figure 6-1
Item Symbol Description
0
1
Connection socket, 5-pole
Standard TIG torch control lead
2
Connection socket, 8-pole / 12-pole
8-pole:
TIG Up/Down or potentiometer torch control lead
12-pole: Control lead for TIG up/down torch with LED display (option)
3
Connection socket, welding current “+” (with DC- polarity)
Connection for workpiece lead
4
Connection socket, welding current “-” (with DC- polarity)
connection TIG welding torch
5
G¼“ connecting nipple, welding current "-" (with DC- polarity)
Shielding gas connection (with yellow insulating cap) for TIG welding torch
