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Connection and operation
Wire inching forward/return
When idling, wire inching can be activated by pressing
one of the keys or activated at the robot interface, if the
RWF 32/33 unit is used in a robot setup.
IGC (Intelligent Gas Control)
The RWF 32/33 can be supplied with IGC, a function for
dynamic flow rate adjustment according to welding job.
The gas flow must be set, so a pressure of 2-6 bar is kept
during welding.
Calibrate the IGC flow at the remote control unit (see user
guide for detailed description).
Gas test
The gas flow test function can be activated at the robot
interface or by pressing the gas test key on the remote
control unit (see user guide for detailed description).
Status indicator (12)
• LED off: RWF is not active. Use robot interface or
connected torch to activate the RWF unit.
• Flashing LED: RWF is active but not CAN-connected
to the power source. Check the CAN-mains cable and
mains plug.
• LED on: RWF is active.
AIR Clean (3+10) (not all models)
If the RWF unit is used along with an integrated robot
interface, it is possible to connect a compressor unit for
cleaning the gas nozzle. Set the compressed air and use the
robot interface for control.
Collision protection for robot controller (5)
The collision protection function enables connection of a
mechanical fuse to the robot torch. This prevents the torch
from getting out of calibration in case of collision with a
workpiece.
TOUCH Sensing (1)
For welded seam localization; this function is applicable if
the RWF unit is used in an integrated robot interface setup
and uses welding wire or a contact tip to create electrical
contact. The robot automatically adjusts the welded seam
position prior to arc ignition.
For exact positioning of the welding torch, it is possible to
use the Touch Sensing signal. This option is available when
using Fieldbus communication only
When the welding wire has contact to the work piece, the
robot/controller is told so by changing the status of an
output bit. Touch sensing can also be connected to the gas
nozzle.
Note: Gas nozzle sensing is automatically enabled through a relay
when activating touch sensing. The relay will, for safety reasons,
disconnect the gas nozzle sense signal during welding.
Activate Touch sensing by enabling the Touch sensing input bit.
E.x. For Sigma Select this is input Bit # 123. See Fieldbus configuration
file for more details.
Read the Touch sensing status output bit.
When the welding wire (or optional the gas nozzle) has contact to
work piece, while not welding:
E.x. For Sigma Select output Bit # 147 is ON when there is contact, and
OFF when no contact. See Fieldbus configuration file for more
details.
REAR
To robot controller
To collision sensor &
Male
0V
1
24V
2
Collision signal
3
Torch gas
nozzle sense
relay
Welding +
from power source
9
c
ollision protection signal and
touch sense to torch
P
1: 0V
in
to collision sensor
P
2: +24V
in
to collision sensor
P
3: c
in
ollision signal from collision sensor
P
7: t
in
ouch sense connection to gas nozzle
c
ollision protection signal to robot controller
P
1: 0V
in
from robot controller
P
2: +24V
in
from robot controller
P
3: c
in
ollision signal to robot controller
FRONT
To RWF collision sensor
touch sensor
a
BINZEL
ABICOR
Female
wiring
1
b
a = green
2
7
b = white
c = brown
3
1KΩ 50W
Male
1
Torch
ZA
Collision
sensor
& touch sensor
Male
1
2
7
c
3
3
2
Torch
gas nozzle
sense signal
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