Paton ProMIG-200, User Manual

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PATON ProMIG DC MMA/TIG/MIG/MAG
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See paragraph 6.1 for the procedure for switching the value of any function
For this mode, you will need to purchase a separate non-contact arc striking unit
(oscillator). The procedure for preparing the unit for operation with an external oscillator unit
is individual and is described in the operation instructions for the oscillator unit. The source
switch control connector is located on the rear panel of the source, the connection diagram
is the same as for TIG-2T, see paragraph 4.1.3.
After assembly:
- turn on the non-contact arc striking unit (oscillator);
- put the automatic switch 12 on the rear panel of the source to the ON position;
- use button 4 to set the TIG welding mode (the modes are switched in a circle);
- set the function of the TIG-4T torch button. To do this, hold button 3 until the "Torch
button" [But] appears on the indicator; the current position of this function will also be
indicated next to it. Using buttons
2 , set "4T". If you do not take any action for a long time,
the unit will exit the mode. You can return in the same way, and if you omitted the required
mode of the button, press button
3 again: the functions are switched in a circle;
- use buttons 2 to set the current main parameter – the welding current;
- if necessary, you can adjust additional functions of the welding process (see paragraph 6.1
for the order of switching).
Caution! The TIG torch must be a push- button type, with a Ø13 mm bayonet
connector. Choose the maximum torch current according to your operating requirements.
4.1.6 TIG-4T TORCH BUTTON FUNCTION
This function of the control button is used only if there is an external, independent
non-contact arc striking unit (oscillator), with a built-in gas valve. The torch button wire
connects directly to the oscillator unit. The procedure for pressing the control button on the
torch is similar to the TIG-2T (see paragraph 4.1.4), but with some differences: 1). At the start
of welding, while the button is held down, during the first press, after gas pre-purge
t1 of the
welding zone and high-voltage striking at the source output will be at a constant pre-current
t2 (pilot arc); only after the button is released, the process of current build-up will begin and
the source will reach the operating current, i.e., the button does not need to be held when
the operating current is fed; the hand will strain less during a long welding process. 2). At the
end of welding (after the second press of the control button on the torch), the current begins
to drop to the level of the crater filling current, and while the button is pressed
t3 , the current
is at this level. After the second release of the button, the source is turned off and the
oscillator unit triggers its function of gas post-purge
t4 of the welding zone (the gas valve is
turned off with a delay).
ATTENTION! The oscillator unit MUST have a circuit to protect the output of the
inverter from breakdown by a high-voltage discharge, which it creates at the time of arc
striking. Before use, the protection circuit must be activated.