Festo Checkbox Compact CHB-C-X, Руководство пользователя

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A. Technical appendix
A−13
Festo P.BE−CB−COMP−en en 0503c
Example Ascertaining the band width for the feature Length" of a con
veyed part with a set tolerance of 5 %.
Conveyed part lengths [mm] ascertained during the Teach
procedure for 5 sample parts: 60 60 61 65 60
This results in:
A = 61.2 mm
C
max
= 65 mm
C
min
= 60 mm
T = 5 %
Average value of the length
Length, maximum
Length, minimum
Tolerance
B
+
C
max
*
C
min
)
2 T A
100
B
+
(65
*
60)
)
2 5 61.2
100
B
+
11.12
1 2
68.06
65.00
61.20
60.00
56.94
C
max tol
C
max
A
C
min
C
min tol
B
1
Band width of the conveyed part length
2
Band width at 5 % tolerance
Result: All conveyed parts with a length of 57...68 mm are
classified as good parts. The Checkbox ascertains appropri
ate value ranges for each feature.