Cloos GLW 322, Operating Instructions And Spare Parts

Page: 18 / 39

GLW 322
Cod.006.0001.1861
01/09/2014 v2.0
ENGLISH
17/38
4 WELDING SETTINGS
4.1 TORCH TRIGGER PROCEDURE
2 STROKE LIFT-ARC WELDING (2T)
1. Touch the workpiece with the torch electrode.
2. Press (1T) and keep the torch trigger pressed.
3. Slowly lift the torch to strike the arc.
The welding current reaches the preset value, by way of a up slope time, if programmed.
4. Release (2T) the trigger to start the weld completion procedure.
The current reaches the end current value in the time set in the down slope time parameter.
The arc is extinguished.
Gas delivery continues for the time set in the post gas parameter.
2 STROKE WELDING WITH HIGH FREQUENCY ARC STRIKE (2T HF)
1. Bring the torch up to the work until the electrode tip is approximately 2 or 3 mm away.
2. Press (1T) and keep the torch trigger pressed.
The arc strikes without contact with the workpiece and the voltage discharges (HF) cease automatically.
The welding current reaches the preset value, by way of a up slope time, if programmed.
3. Release (2T) the trigger to start the weld completion procedure.
The current reaches the end current value in the time set in the down slope time parameter.
The arc is extinguished.
Gas delivery continues for the time set in the post gas parameter.
4 STROKE LIFT-ARC WELDING (4T)
1. Touch the workpiece with the torch electrode.
2. Press (1T) and release (2T) the torch trigger.
3. Slowly lift the torch to strike the arc.
The welding current reaches the preset value, by way of a up slope time, if programmed.
4. Press (3T) the trigger and keep it pressed to start the weld completion procedure.
The current reaches the end current value in the time set in the down slope time parameter.
The arc continues and the current output will be the value set in the end current parameter.
In these conditions the weld pool can be closed (crater filler current).
5. Release (4T) the trigger to extinguish the arc.
Gas delivery continues for the time set in the post gas parameter.
4 STROKE WELDING WITH HIGH FREQUENCY ARC STRIKE (4T HF)
1. Bring the torch up to the work until the electrode tip is approximately 2 or 3 mm away.
2. Press (1T) and release (2T) the torch trigger.
The arc strikes without contact with the workpiece and the voltage discharges (HF) cease automatically.
The welding current reaches the preset value, by way of a up slope time, if programmed.
3. Press (3T) the trigger and keep it pressed to start the weld completion procedure.
The current reaches the end current value in the time set in the down slope time parameter.
The arc continues and the current output will be the value set in the end current parameter.
In these conditions the weld pool can be closed (crater filler current).
4. Release (4T) the trigger to extinguish the arc.
Gas delivery continues for the time set in the post gas parameter.
4 STROKE B-LEVEL WELDING (4T B-L)
1. Touch the workpiece with the torch electrode.
2. Press (1T) and release (2T) the torch trigger.
3. Slowly lift the torch to strike the arc.
The welding current reaches the preset value, by way of a up slope time, if programmed.
3. Press and immediately release the torch trigger to switch to the second welding current.
The trigger must not be pressed for more than 0.3 seconds; otherwise, the weld completion stage will start.
When the trigger is pressed and released immediately, the system returns to the welding current.
4. Press (3T) the trigger and keep it pressed to start the weld completion procedure.
The current reaches the end current value in the time set in the down slope time parameter.
The arc continues and the current output will be the value set in the end current parameter.
In these conditions the weld pool can be closed (crater filler current).
5. Release (4T) the trigger to extinguish the arc.
Gas delivery continues for the time set in the post gas parameter.