Paton STANDARDTIG-160, User Manual, Page: 90 / 115

PATON StandardTIG DC MMA/TIG/MIG/MAG
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3.6 SHORT-ARC WELDING FUNCTION
This function is especially relevant when welding overhead joints, when you need to
keep the arc from stretching too far. To do this, you can turn the "Short Arc" function 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, 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 shape and quality of the weld formation depends on
the correct setting, which reduces the likelihood of the appearance of pores and reduces the
grain structure, and thus increasing the strength of the weld.
To implement this function in the unit, you need to set three parameters: pulsation
power, pulsation frequency and pulse/pause ratio (or "duty cycle") [dut]. By default, pulsation
power as a key parameter is set to OFF, i.e., the function is turned off, and pulsation
frequency and "duty cycle" at the most common values of 5.0 Hz and 50%, respectively. To
enable the function, simply set the pulsation power above zero. This parameter is set as a
percentage of the used main welding current set.
Example: welding with Ø3mm electrode, the set main value of the welding current
is 60A, and the pulsation power is 40%, while the pulsation frequency is 5.0Hz and the duty
cycle is 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. Changing
this parameter introduces an asymmetry between the current pulse time and the current
"pause" time:
default "duty cycle" = 20% "duty cycle" = 70%