Welding Torch; Mounting; Push-Pull Torches; Wire Inch Button - Kemppi A7 350 Integration Manual

3.6 Welding torch

3.6.1 Mounting

Fasten the welding torch securely to the robot arm, using
a robot mount (T1, T2, or T3). See the detailed mounting
instructions in the delivery packages for the welding torch
and robot mount.
For the welding torch, the wire feeder is equipped with a
Euro MIG torch connector. Push the torch connector into
the Euro connector on the wire feeder, and tighten the
collar.
If you are using a water-cooled torch, connect the red-
and-blue marked cooling hoses to the corresponding
hoses coming from the cooling unit in the interconnection
cable set. For details, see Subsection 3.8.5, "Cooling

3.6.2 Push-pull torches

If using a push-pull torch, you need to connect the torch
motor and any tachometer to the 10-pin peripheral
connector. For the connector pinout see
"Wire feeder". The motor is connected to pins A and B (see
Figure 3.4, "Push-pull motor connection"). The tachometer
is connected to pins G, I, and J (see Figure 3.5, "Push-pull
motor with tachometer").
In order to operate properly, the push-pull torch must
be configured for use. The configuration is described in
Subsection 5.1.4, "General robot settings".
A
M
B
Figure 3.4: Push-pull motor connection
A
hoses".
M
B
Figure 3.5: Push-pull motor with tachometer
Section 3.5,

3.6.3 Wire inch button

If the welding torch is equipped with a wire inch button,
connect it to pins D and H of the peripheral connector (see
Figure 3.6, "Wire inch button
D
H
Figure 3.6: Wire inch button connection
© Kemppi Oy 2020

3.6.4 Torch-cleaning with compressed air

The wire feeder is equipped with a compressed-air valve
for torch-cleaning. The wire feeder has appropriate fast
connectors for 6 mm nylon hose at the rear (inlet) and
front (outlet).
If you are using a torch with air-cleaning capability,
connect the compressed-air hose of the torch to the front
connector, and connect a hose from an air compressor to
the rear connector.
Do not modify the wire feeder. Use adapters if needed.
G
In automated operation, the torch-cleaning function is
controlled by a robot by using the digital robot interface.
To test the function manually:
S J
I
connection").
9
A7 MIG Welder
• Press the air blow button on the wire feeder, or
• Use the air blow test function in either the setup
panel or the web user interface, or
• Control the air blow by means of the robot teach
pendant
2002