ESAB Aristotig 405 AC/DC, Service Manual

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5.2 INSTRUCTION TYPES SELECTION (2)
Electrode welding (MMA)
Welding with coated electrode.
HF unit and Lift arc function are switched off, Soft-Hot-Start function is activated.
Spot welding TIG (Up-Slope and Down-Slope active)
Welding with defined period (from 0,1 to 10 s adjustable).
By pressing the torch button:
• Arc is ignited.
• Current increases to the preset welding current rate.
• Spot time begins to count down.
• Welding current rate drops to the preset drop-off current .
• Arc extinguishes and preset gas post-flow runs off.
• Pressing of the torch key again allows the welding process to be repeated.
Four-stroke-mode
Continuous welding
• The ignition current 1 (Soft-Hot-Start) starts to flow when pressing the torch button.
• The main current I2 is activated (Up-Slope active) by releasing the torch button.
• The down ramp is started by pressing and maintaining the torch.
• The welding is finished by releasing the torch button.
Two-stroke-mode
Short tack weldings
• By pressing the torch button, the arc is ignited (Up-Slope active).
• By releasing the torch button the down ramp is activated, after reaching the final current I3
the welding is finished.
5.3 WELDING CURRENT SELECTION SWITCH (22)
Direct current (DC) with lift arc ignition
• Place the electrode on the workpiece at the position where the start of the weld is desired.
• Press the torch button.
• Lift up the torch to ignite the arc.
• Welding current rises at the preset rate.
To finish the weld, release the torch button.
Weld current drops to the preset final current.