Use this vision type when part recognition is not possible using any other vision type. In the shape data, set the vision type to 170, specify a setting for [Lead Brightness] and specify the check area and select either 1 or 2 for the p_pattern in the element information. Based on this data, if it is determined that the part has been picked, then the part is placed without performing any correction based on vision. The part is positioned mechanically.
When vision processing is performed, the average greyscale of the area specified in the element data is determined. This average is compared to the lead brightness setting and based on the p_pattern setting it is determined whether or not the part is present.
If the p_pattern setting is 1 (dark) and the average greyscale value is higher than the lead brightness setting, it is determined that the part is present. If the average grayscale is lower than the lead brightness setting, then it is determined that the part is not present.
If the p_pattern setting is 2 (light) and the average greyscale value is lower than the lead brightness setting, it is determined that the part is present. If the average grayscale is higher than the lead brightness setting, then it is determined that the part is not present.
Note: Use a chuck with four claws when using this vision type.