OPD101
21
8.1.5 Switching threshold
2
1
90
%
100
%
Fig. 8: Switching threshold
1:
matching value
2:
switching threshold
u
In the next step, the switching threshold for the switching output is set. The standard setting is
90%.
w
The sensor continually detects new height profiles and compares them to the taught reference
profile.
w
The matching value is shown in the display.
If matching value > switching threshold (standard = 90 %): measured value display is green →
good part.
If matching value < switching threshold (standard = 90 %): measured value display is red → bad
part.
Natural fluctuations (noise, drift) affect the measured matching value. As a rule, these
measurement fluctuations cause the matching value to be < 100 %, even if the taught object is
measured again. Fluctuation of the matching value (
w
The options [Adjust threshold], [Save settings] and [Back] are displayed.
u
Make a selection using [▲] / [▼] and press [●].
•
[Save settings]:
– The settings are saved.
•
[Adjust threshold]:
– Set the value for the new threshold using [▲] / [▼] and press [●].
By testing several good parts / bad parts with different switching thresholds, the setting can be
optimised for the application. The good part / bad part assessment is indicated in the display.
Use the extended functions to individually adjust the colour assignments.
Standard: green value
Ò
good part / red value
Ò
bad part
8.1.6 Saving the reference profile
u
In the next step, the taught reference profile, including all settings made, is to be stored in one of
the 10 available memory locations.
The free / occupied memory locations are marked as follows:
Free memory
Occupied memory
○
●
•
[Select the memory location for the current profile]:
u
Press [▲] / [▼] to change the storage location and [●] to confirm.
u
[Overwrite profile X?]:
Only appears if the selected memory location is already occupied.
w
The display shows [No] / [Yes].
u
Make a selection using [▲] / [▼] and press [●] to confirm.
GB
