PATON
StandardMIG
DC MMA/TIG/MIG/MAG
- 80 -
coating (UONI-13/45, LKZ-70), it is not necessary, but it is recommended to set the slope
[BAH] to 1.0V/A. In their turn, electrodes with cellulose type of coating (CC-1, VCZ-4A) even
require setting the slope of voltage characteristic to 0.2...0.6V/A value and in this case
sometimes it is necessary to raise the operation level of "Arc-Force" function [u.AF] up to
the value of 18V.
To change the value of any function in the current welding mode, see section 6.1.
3.6 SHORT ARC WELDING FUNCTION
This function is especially useful when welding ceiling seams, when it is necessary not
to stretch the welding arc too much. For this purpose, the machine has an option to turn
the "Short-Arc" function to the "ON" position. By default, it is in the "OFF" position.
To change the value of any function in the current welding mode, see section 6.1.
3.7 NO-LOADING VOLTAGE REDUCTION UNIT FUNCT
When welding in tanks, cisterns and places requiring an increased electrical safety
system, the no-load voltage reduction function can be activated.
When the electrode is detached from the piece, after 0.1 second the voltage at the
source terminals is reduced to a safe level below 12V.
This requires the no-load voltage reduction unit, which is present in this model of
equipment, but is in the "OFF" position by default, i.e. turned off, since it is known that
turning on any such function somewhat impairs arc ignition.
To change the value of any function in the current welding mode, see section 6.1.
3.8 PULSED CURRENT WELDING FUNCTION
This function is designed to facilitate the control of the welding process in spatial
positions other than bottom and in the welding of non-ferrous metals. The effect is
directed to the mixing of the molten weld metal and to the drip transfer into the weld pool,
and this in turn affects the stability of the weld formation and the welding process. In other
words, this process to some extent replaces the movements of the welder's hand, which is
especially important in hard-to-reach places. The shape and quality of the weld formation
depends on the correct setting, which reduces the likelihood of pores and reduces the
granularity of the structure, and this increases the strength of the weld.
To implement this function, three parameters must be set in the unit: pulsing power
[Po.P], pulsing frequency [Fr.P] and pulse/pause ratio (or "duty ratio") [dut]. By default, the
pulsing power as a key parameter is in "OFF" position, i.e. the function is disabled, and the
pulsing frequency and "duty ratio" are at the most common values of 5.0Hz and 50%
respectively. To enable the function, it is sufficient to set the pulsing power greater than
zero. This parameter is set as a percentage of the main welding current set.
Example: When welding with
Ф
3 mm electrode, the set main welding current is 60A
and the pulsing power is 40%, with a pulsing frequency of 5.0Hz and a default "duty ratio"
of 50%.
Result: The current will pulse from 36A to 84A with a frequency of 5Hz. The pulses will
have the same shape in amplitude and time. The "duty ratio" parameter is set to 50% by
