Torch Connection Options And Pin Assignments; Connection For Workpiece Lead; Shielding Gas Supply (Shielding Gas Cylinder For Welding Machine); Connection - EWM TETRIX 351 AC/DC COMFORT activArc Operating Instructions Manual

• Insert the welding current plug on the welding torch into the welding current connection socket and
lock by turning to the right.
• Screw welding torch shielding gas connection tightly onto the G¼" connection nipple, welding current
"-".
• Insert the welding torch control lead plug into the connection socket for the welding torch control lead
(5-pole with standard torch, 8-pole with up/down or potentiometer torch and 12-pole with up/down
torch with LED display) and tighten.
• Lock connecting nipples of the cooling water tubes into the corresponding rapid-action closure
couplings:
Return line red to rapid-action coupling red (coolant return line) and supply line blue to rapid-action
coupling blue (coolant supply line).
6.8.2

Torch connection options and pin assignments

5
4
3
2
1
5-pole control lead
6.8.3

Connection for workpiece lead

• Insert the cable plug on the work piece lead into the "+" welding current connection socket and lock by
turning to the right.
6.8.4

Shielding gas supply (shielding gas cylinder for welding machine)

Faults in the shielding gas supply.
An unhindered shielding gas supply from the shielding gas cylinder to the welding torch
is a fundamental requirement for optimum welding results. In addition, a blocked
shielding gas supply may result in the welding torch being destroyed.
• Always re-fit the yellow protective cap when not using the shielding gas connection.
• All shielding gas connections must be gas tight.
6.8.4.1

Connection

Incorrect handling of shielding gas cylinders!
Incorrect handling of shielding gas cylinders can result in serious and even fatal injury.
• Observe the instructions from the gas manufacturer and in any relevant regulations
concerning the use of compressed air!
• Place shielding gas cylinders in the holders provided for them and secure with fixing
devices.
• Avoid heating the shielding gas cylinder!
Item No.: 099-000108-EWM01
Uref 10V Uref 10V
Poti UD/ein Poti UD/ein
I1
I2
BT
BT1 BT2
BT1 A
+
BT2 B
C
0V
D
Down Up
E
F
IH-Down +
Up
G
H
8-pole control lead
Figure 6-4
CAUTION
WARNING
Commissioning
-
-
12-pole control lead
TIG welding
75