
Inspecting with the Edge Position Inspection Item
FQ2-S4 User’s Manual
4
Setting Up
Inspect
ions
165
Noise Is Mistaken as an Edge
[Inspect]
−
[Inspection]
−
[Edge Position]
−
[Modify]
−
[Details] Tab Page
−
[Meas. Parameter]
−
[Noise Level]
Screen Display When the Edge Level and Noise Level Are Changing
A bar showing the threshold level moves up and down on the graphic as the edge level/noise level value changes.
A cross-key cursor will also appear at the detected edge position.
Parameter
Setting
Description
Noise level
Sensors with Color Cam-
eras Only
Range: 0 to 422
Default: 5
(Sensors with Mono-
chrome Cameras only)
Range: 0 to 255
Default:128
Sets the density level to be considered as noise.
If the difference between the maximum and minimum color changes in the
region is below the noise level, it will be assumed that there is no edge.
Increase this value if noise is incorrectly detected as an edge.
If you change the noise level, perform teaching again.
Noise threshold
The maximum and minimum color deviations and densities within the edge detection region are determined.
If the difference is less than the noise threshold, it is assumed that there are no edges. Normally there is no
problem with the default value of 10, but if noise is mistakenly detected as an edge, make this value higher.
• Sensors with Color Camera
Within the Region
Max. color change
−
Min. color change < Noise threshold
→
No edge found
→
Measurement result: NG
Max. color change
−
Min. color change
≥
Noise threshold
→
Edge found
→
Perform measurement
• Sensors with Monochrome Cameras
Max. density change
−
Min. density change < Noise threshold
→
No edge found
→
Measurement result:
NG
Max. density change
−
Min. density change
−
Noise threshold
→
Edge found
→
Perform measurement
Important
Note
Judges that there is an edge and performs measurements.
Judges that there is no edge (measurement result is NG).
60
−
15 > 30
25
−
10 < 30
Min. color deviations
and densities: 15
Min. color deviations
and densities: 10
Measurement
region
Measurement
region
Max. color deviations
and densities: 25
Max. color deviations
and densities: 60
Edge level (Blue)
Noise level (Yellow)
Screen display when the edge level are changing.
Summary of Contents for FQ2-S4
Page 1: ...User s Manual Smart Camera FQ2 S4 Cat No Z330 E1 01 ...
Page 58: ...Setting Up Ethernet 56 FQ2 S4 User s Manual MEMO ...
Page 214: ...Calculations and Judgements Using Inspection Item Data 212 FQ2 S4 User s Manual MEMO ...
Page 234: ...Adjusting Judgement Parameters during Operation 232 FQ2 S4 User s Manual MEMO ...
Page 458: ...Basic Troubleshooting 456 FQ2 S4 User s Manual MEMO ...
Page 591: ...Index FQ2 S4 User s Manual 589 Index 12 ...
Page 593: ......