Omron FQ2-S Series User Manual page 188

Edge Not Found
The measured edge width will be 0. Perform the following.
• If a color was specified, make sure the color of the measurement object has not changed from the specified
color.
• Set the color again if necessary.
• If there is an edge and it cannot be detected, make sure the [Edge level] parameter on the [Details] Tab Page
is correct.
Edge level: p. 176
186
Inspecting with the Edge Width Inspection Item FQ2-S/CH User's Manual