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PATON
®
VDI PROFESSIONAL SERIES DC MMA/TIG/MIG/MAG
The procedure for changing the values of the operational parameters of the welding unit for the current
welding process is described in Section 6.1.
3.5 PROTECTION AGAINST ELECTRODE STICKING
At the stage of arc starting, the electrode can stick to the workpiece and, as a result, the electrode
can be damaged due to overheating. If the electrode has stuck to the workpiece, the welding current
decreases within 0.6 … 0.8 s after the sticking. The temporary reduction in the welding current
makes it easier for the welder to peel off the stuck electrode. After separating the electrode from the
product, the welding process can be resumed without any problems.
3.6 SETTING THE SLOPE OF THE VOLT –AMPERE CHARACTERISTICK
OF THE WELDING UNIT
This function is designed to facilitate welding with electrodes with diverse coatings. By default, the
slope of the volt-ampere characteristic
[VOLT-AMPER CHARAKTERISTIC]
of the welding unit is 1.4
V/A. This value is optimal for the most common electrodes and with rutile coating (ANO-21). In
order to facilitate welding with electrodes with standard coating, (UONI-13/45) it is recommended
to set the slope of the volt-ampere characteristic
[VOLT-AMPER CHARAKTERISTIC]
equal to 1.0
V/A. If electrodes with cellulose coating (CC-1, VSC-4A) are used, the slope of the volt-ampere
characteristic should be 0.2 … 0.6 V/A. In this case, it is sometimes required to increase the
threshold
[TRESHHOLD ARC FORCE]
value for the reduced-voltage welding function to 18 V.
The procedure for changing the values of the operational parameters of the welding unit for the current
welding process is described in Section 6.1.
3.7. SHORT ARC WELDING MODE
This short arc welding mode should be used in overhead position welding, when it is required to
prevent arc stretching. For this purpose, activate
(ON)
the short arc welding function
[SHORT ARC
MODE]
of the welding unit. By default, the function is deactivated
(OFF).
The procedure for changing the values of the operational parameters of the welding unit for the current
welding process is described in Section 6.1.
Summary of Contents for VDI 160 PRO
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