44
A7 MIG Welder
© Kemppi Oy 2017
1735
OPERA
TING M
ANU
AL
4.5.2 Touch tool
Two alternative touch tools can be used for touch sensing
(see
Figure 4.21, “Welding wire used as touch tool”
and
Figure 4.22, “Gas nozzle used as touch tool”
). The regular
tool is the welding wire (welding plus). Sometimes the
welding wire is not accurate enough. The tip of the welding
wire can bend resulting in incorrect position information.
In that case the gas nozzle can be used instead. Using the
gas nozzle requires extra wiring from wire feeder’s 10-pole
peripheral connector (pin F) to the gas nozzle.
The touch tool can be forced by the configuration in both
the web user interface and the setup panel, or the selection
can be allowed to be managed by the robot controller by
using the digital robot interface. See
Subsection 4.5.6,
“Configuring touch tool”
for more information on these
alternatives.
Figure 4.21 Welding wire used as touching tool
Figure 4.22 Gas nozzle used as touching tool
4.5.3 Fast status output
The fast status output is a direct hardware output for
systems where the latency between the sensing and the
detection status reception is an issue. The normal latency
is around 10 milliseconds through the fieldbus. The
response time of the fast output is about 1.5 milliseconds.
See the
A7 Welder Integration guide
for connecting and
configuring the fast output.
4.5.4 Selecting output voltage
The output voltage of the touch sensor power source can
be selected by using either the web user interface or the
setup panel. Setting the voltage requires
administrator
privileges
.
Setup panel
Go to the
Main menu > Robot menu > Touch sensor
menu
and specify the desired output voltage value to the
Voltage
parameter by turning the control knob. Press the
Save
button to save the settings.
Web user interface
Go to the
Welding settings > System settings > Touch
sensor settings
and select the desired output voltage
from the
Output voltage
drop-down list. A pop-up bar
with
Save
and
Reset changes
buttons will appear at the
bottom. Press the Save button in the dialog to save the
settings.
