Cloos NexT 452 AC, Operating Instructions Manual

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3. Description of the additional functions
The following additional functions are available in the selection menu for
the basic and secondary parameters.
Function Condition
DuoPulse
only if the selected characteristic curve offers this func-
tion
CleanStart
only if the selected characteristic curve offers this func-
tion
QWD
only if more than one wire drive unit is connected and
operating mode "External" is active
3.1 DuoPulse
A second weld parameter set is generated from the set basic value by
means of the DuoPulse (Aluplus) function. This can be greater or less than
the basic value. By means of a defined frequency there is a switch-over
between the two parameter sets. The appearance of the weld seam surface
is formed by the defined change of parameters. During root welding,
defined cool-down times are reached depending on the setting.
If the "DuoPulse" function is activated, the following additional changes
are available in the menu secondary parameters.
Parameters Value range
"DuoPulse modulation" Correction value (+/- 99)
"DuoPulse frequency" Correction value (+/- 99)
3.2 CleanStart
Clean Start is a special ignition routine which ensures a reliable and low
spatter arc ignition. The complete ignition routine runs in the millisecond
range.
3.3 QWD
This menu item is only displayed if the requirements are met. If more than
one QWD is connected to the welding power source, the active QWD is
defined here. This adjustment is applied when saving a job.
A defined active QWD is shown in the main display.
Menu
button
Figure 103. Selection menu for basic and secondary parameters