Cloos NexT 452 AC, Operating Instructions Manual

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4. MAIN - process
4.1 Electrode
All commercially available stick electrodes can be welded in conjunction
with the "Electrode" process. If the "Electrode" process is selected, "Aset"
appears in the display. The displays for wire diameter and material thick-
ness are masked out. You can now select the required welding current by
means of rotary knob 1. Press rotary knob 1 to switch on the open circuit
voltage. The blue LED "ARC on" lights up, see Figure 8. Press rotary knob 1
again or change to another process to switch off the open circuit voltage. If
the internal characteristic curve is missing or defective, the process name
is displayed in red.
4.2 TIG
The "TIG" function provides a TIG welding process (direct current).
For this purpose a special adapter is required. This process is provided with
a Lift Start ignition.
In program mode, you can adjust the times for gas pre-flow and post-flow
as absolute values in seconds (0…99.9). Use rotary knob 1 to select the
welding current. The displays for wire diameter and material thickness are
masked out.
4.3 Speed Weld
The MIG/MAG "Speed Weld" welding process is a U/I-controlled pulsed
arc. The welding settings are chosen in such a way that a hard and stable
pulsed arc arises. The welding current depends on the distance between
torch and workpiece.
Arc seam tracking is possible in connection with the QIROX robot controller.
This does not apply to QINEO NexT Master welding power sources.
The MIG/MAG welding process "Speed Weld" is especially suitable for high
welding speeds and is ideal for joining sheet metal parts from 0.1 … 5 mm.
4.4 Vari Weld
The MIG/MAG "Vari Weld" welding process is an I/I-controlled pulsed arc. The
welding settings are selected so that an extremely low spatter pulsed arc is
created without further fine adjustment (arc length and dynamics). The weld-
ing current does not depend on the distance between torch and workpiece.
Arc seam tracking was not possible at the time this document was pub-
lished. The "Vari Weld" MIG/MAG welding process is suitable for sheet
metal thicknesses greater than 1 mm.
4.5 Control Weld
This is a pulse-free MIG/MAG welding process with synergy function. It
offers a stable metal transfer from short arc to spray arc.
4.6 Syn off
In this process, you set the parameters wire speed (rotary knob 1) and
welding voltage (rotary knob 2) manually. All other basic data and second-
ary parameters are provided by the synergy characteristic curve.