S.p.A.
ITEM TE550
Instruction manual
Example:
After a number of welding tests, the ensuing life of the electrodes resulted to be 4000 welding
spots and the following current values are required during the different moments of the
electrodes' life.
SPOTS PERFORMED
REQUIRED CURRENT
0 (initial electrodes diameter)
15 kA
700 17.8
kA
1800 19.5
kA
3000 20.2
kA
4000 (end electrodes diameter)
20.7 kA
Therefore calculate the duration (in number of welding spots) and the percent increment of
each segment.
Keep in mind that the percent increment must always be calculated in relation to the
beginning of the segment being examined.
spots
700
=
0
-
700
=
1
segment
of
Duration
spots
1100
=
700
-
1800
=
2
segment
of
Duration
spots
1200
=
1800
-
3000
=
3
segment
of
Duration
spots
1000
=
3000
-
4000
=
4
segment
of
Duration
%
19
100
15
15
8
.
17
100
1
%
rent
initialcur
rent
initialcur
endcurrent
segment
Change
%
10
100
8
.
17
8
.
17
5
.
19
100
2
%
rent
initialcur
rent
initialcur
endcurrent
segment
Change
%
4
100
5
.
19
5
.
19
2
.
20
100
3
%
rent
initialcur
rent
initialcur
endcurrent
segment
Change
%
3
100
2
.
20
2
.
20
8
.
20
100
4
%
rent
initialcur
rent
initialcur
enecurrent
segment
Change
The following parameters are consequently set in the
STEPPER MENU
:
PARAMETER PARAMETER
DESCRIPTION
VALUE
TOTAL STEPS
Number of segments per stepper function
4
SPOTS 1
Number of spots of the first segment
700
INCREMENT1
Increment percent of first segment
19
SPOTS 2
Number of spots of the second segment
1100
INCREMENT2 Increment
percent of second segment
10
SPOTS 3
Number of spots of the third segment
1200
INCREMENT3 Increment
percent of third segment
4
SPOTS 4
Number of spots of the fourth segment
1000
INCREMENT4 Increment
percent of fourth segment
3
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