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Connection and operation
Connection of electrode holder for MMA
The electrode holder and return current cable
are connected to plus tap and minus tap. Observe
the instructions from the electrode supplier when
selecting polarity.
CWF Multi (option)
It is possible to connect to the PI ROBO with up to 8
CWF Multi units via dedicated CAN BUS connector
placed on the rear side of machine (option). In order
to permit this control capability, enter the USER Menu
and select "Fdr" (feeder), then access "Act" (Active
devices) and set the parameter to 1. (see USER MENU)
Now the PI is ready to control the CWF directly from
the box: for each TIG welding program it is possible
to select what CWF unit must be activated and the
relative CWF program in the range 1 to 20.
Depending from the settings on the CWF, if the
unit is in OFF mode the error message "Fdr" can
be displayed on PI and the welding procediment
stopped. This is to inform the user the CWF is not
responding to start signal from PI.
Connection of remote control
PI can be controlled via a remote control or a welding
robot. The remote control socket (11) has terminals
for the following functions:
A:
Input signal for welding current,
0 – +10V input impedance:
1Mohm
B:
Signal ground
C:
Arc detect – contact of relay
(max. 1Amp), fully insulated
D:
N.C.
E:
Arc detect – contact of relay (max. 1Amp), fully
insulated
F:
N.C.
G:
Supply +24VDC. Short circuit protected with PTC
resistor (max. 50mA)
H:
Supply ground
+15V
20 K
A
100 nF
B
C
D
E
F
G
+
PTC 70
H
G
F
A
H
E
B
D
C
1 M
100 nF
24 VDC
Switch on, press, weld
Welding program setting
•
Switch on the welding machine on the main switch
(2)
•
Select process
See Quickguide
•
Adjust the welding current and secondary
parameters. Please read your quickguide
•
The machine is now ready to weld
WARNING
When you activate the torch trigger,
there is voltage applied to the
welding wire and electrode.
12
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