Operation Manual

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A7 MIG Welder© Kemppi Oy 2018 1824
OPERATING MANUAL
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 conguration 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,
“Conguring 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 sys-
tems where the latency between the sensing and the de-
tection status reception is an issue. The normal latency is
around 10 milliseconds through the eldbus. The response
time of the fast output is about 1.5 milliseconds.
See the A7 Welder Integration guide for connecting and
conguring 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 Volt-
age 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 sen-
sor 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.