TECNA TE 500, Руководство пользователя

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In the aforesaid work method, a linear welding current increment is used during the whole life span of
the electrodes. In actual fact the increase of the contact section of the electrode on the sheet is not
linear but has a pattern that is similar to the one shown in the graph below.
COMPLETE USE (NON-LINEAR INCREMENT CURVE)
As such the use of the linear increment is an approximation which nonetheless permits to achieve good
results in most applications. However when the user wishes to achieve utmost constancy during work
conditions, a non-linear increment curve can be set that is described by defining a certain number of
segments.
This type of adjustment requires an adequate knowledge on how electrodes wear and on the
parameters required during their life. Consequently many welding spot tests are necessary for
assessing the work conditions in different moments of the electrodes' life.
The increment curve is set by assessing a certain number of linear segments. The number of welding
spots and the desired increment are assessed for each segment.
The STEPS INCREM parameter determines the number of segments to be inserted in the increment
curve. Enter the number of welding spots that make up the segment in the “SPOTS n” parameters.
Enter the corresponding percent increment to be achieved in the “INCREMENT n” parameter.
The programming procedure is outlined in the "
Stepper
" menu paragraph.
IDEAL PATTERN
REAL PATTERN
WITH SET INCREMENT
CURVE
CUR
RE
N
T
NUMBER OF WELDING SPOTS
IDEL PATTERN
REAL PATTERN
WITH LINEAR INCREMENT
CU
R
R
EN
T
NUMBER OF WELDING SPOTS