Paton PRO-160, User Manual

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PATON PRO DC MMA/TIG/MIG/MAG
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3.6 SHORT-ARC WELDING FUNCTION
This function is especially relevant when welding ceiling joints, when you need to make
sure that the welding arc does not stretch too much. To do this, you can put the "Short Arc"
function [Sh.A] to the ON position. By default, it is in the OFF position. See paragraph 6.1
to change the value of any function in the current welding mode
3.7 NO-LOAD VOLTAGE REDUCTION UNIT FUNCTION
When performing welding operations in the containers, tanks, and where an
enhanced electrical safety system is required, the no-load voltage reduction function can
be activated.
When the electrode is detached from the workpiece, after 0.1 seconds, the voltage at
the source terminals decreases to a safe level below 12V.
To do this, you need a no-load voltage reduction unit [BSn], which is available in this
model, but by default, it is in the OFF position, i.e., off, since it is known that turning on any
such function slightly worsens arc striking. See paragraph 6.1 to change the value of any
function in the current welding mode.
3.8 PULSE CURRENT WELDING FUNCTION
This function is designed to facilitate the control of the welding process in spatial
positions other than the lower one, as well as when welding non-ferrous metals. The effect
occurs directly on the mixing of the molten metal of the seam and on the transfer of the
drop into the weld pool, and this, in turn, affects the stability of the seam formation and the
welding process. In other words, this process replaces the welder's hand movements to
some extent, especially in hard-to-reach places. The correct setting determines the shape
and quality of the seam formation, which reduces the likelihood of pores and reduces the
grain structure, and thus increasing the strength of the welded joint.
To implement this function in the device, you need to set three parameters: pulsation
power [Po.P], pulsation frequency [Fr.P] and pulse/pause ratio (or "duty cycle") [dut]. By
default, pulsation power [Po.P] as a key parameter is set to OFF, i.e., the function is turned
off, and pulsation frequency [Fr.P] and "duty cycle" [dut] at the most common values of 5.0
Hz and 50%, respectively. To enable the function, simply set the pulsation power [Po.P]
above zero. This parameter is set as a percentage of the used main welding current set.
Example: welding with Ø 3mm electrode, the set main value of the welding current is
60A, and the pulsation power [Po.P] = 40%, while the pulsation frequency [Fr.P] = 5.0Hz
and the "duty cycle" [dut] = 50% by default.
Result: the current will pulse from 36A to 84A at a frequency of 5 Hz; the pulses will
have an equal shape in amplitude and time. The "duty cycle" parameter is set to 50% by
default. If this parameter is changed from 50%, an asymmetry between the current pulse
time and the current "pause" time is introduced: