User manual OMRON ZFX-C

[. . . ] Z264-E1-06A Smart Sensor ZFX-C Vision Sensor with built-in LCD monitor USERS MANUAL Introduction Thank you for purchasing the ZFX-C. This manual provides information regarding functions, performance and operating methods that are required for using the ZFX-C. When using the ZFX-C, be sure to observe the following: · The ZFX-C must be operated by personnel knowledgeable in electrical engineering. · To ensure correct use, please read this manual thoroughly to deepen your understanding of the product. [. . . ] · Detection interval Determine the detection interval roughly according to the size of the defect and the detection size. The larger the detection interval that is set, the shorter the processing time becomes. When the detection area is greater than the defect, set a smaller detection interval. When the defect is greater than the detection area, set a slightly larger detection interval. When a small detection interval is set, elements overlapping the edge of the defect also are included in the comparison, and so the defect value decreases, which results in less stable detection of the defect. Possible output results The following values can be output when expressions are set. Item Judgment result Defect Maximum density Minimum density Number of defects Defect position Reference position Position difference Description The judgment result is output. (0 to 255) Message Judge (JG) Defect (F) The maximum density value inside the measurement region is output. density (GH) (0 to 255) The minimum density value inside the measurement region is output. density (GL) (0 to 255) The number of defects having an extent of defects at or exceeding the Number of defects judgment condition is output. (0 to 255) (N) The X, Y coordinates of the defect position are output. (-9999. 999 to 9999. 999) Position X, Y (X, Y) The X, Y coordinates of the defect position when the measurement Reference X, Y region is drawn are output. (-9999. 999 to 9999. 999) (SX, SY) The difference obtained by "measurement position - reference position" is output. X, Y (DX, DY) For details on reference position, position difference p. 50 98 Setting Measurement Items ZFX-C User's Manual Image Adjustment This section describes the functions for apply filters, etc. to process images captured from the camera so that they can be easier-to-measure. Items that can be set differ according to the measurement item and type of camera. Only available items are displayed. Select Camera Select camera 0 or camera 1 as the camera to be used in this measurement item. MENU mode - [Setup] - [Item] - [Img Adj]-[Select camera] Color Filter The contrast of images can be improved by passing images through color filters. This function can be set only when a color camera is connected to the Controller. When a color filter setting is changed, a new image processed by the color filter is displayed on the right side of the monitor. Set the color filter while monitoring the image on screen. Note 3 SETTING THE MEASUREMENT CONDITIONS AUTO Setting When AUTO is set for measurement items that support use of color filters, the optimum color filter is automatically set. Color Filter p. 226 MENU mode - [Setup] - [Item] - [Img Adj] - [Select camera] - [Color filter] Item Select filter Description The color filter can be selected as desired. (Red, Blue, Green, Yellow, Cyan, Magenta, Gray, Custom) When [Custom filter] is selected, any color in the color bar can be set to the filter. Sets whether or not to perform automatic selection of color filter processing when the automatic setting is executed. On: The current image is analyzed to automatically select the optimum color filter each time that the automatic setting is executed. Off: The currently selected color filter is fixed, and is not cleared and held even if the automatic setting is executed. Auto function ZFX-C User's Manual Setting Measurement Items 99 Color Pickup/Binary This function picks up the color to be measured. When a color camera is connected to the Controller MENU mode - [Setup] - [Item] - [Img Adj] - [Select camera] - [Color Pickup] Item Region Pickup Color Description When an area containing a color to be measured is specified, and [AUTO] is selected, up to four colors are automatically picked up in order of the color having the largest area. [. . . ] The image can be adjusted while comparing the picked up color image and original image. 6 Select [Hue/Saturation/Value]. Hue Saturation Brightness Value Set a narrower hue range. Set a narrower saturation range. Set a narrower brightness range. Hue, Saturation and Brightness Value p. 230 7 8 Select [Apply]. Select [Auto function]-[OFF]. The icons of fixed colors are not cleared and are held even if the AUTO button is selected again. 7 APPENDICES 229 How Color Images are Processed ZFX-C User's Manual Hue, Saturation and Brightness Value The parameters hue, saturation and brightness value are used in the measurement values in color inspection. Parameter Hue Saturation Description The name of a color, such as red, yellow or blue, that is perceived subjectively. The higher saturation becomes, the purer the color becomes in proportion to hue. The ratio of light intensity in a color. Brightness value Brightness value 100 (white) 0 (achromatic color) 100 (vivid) Saturation Hue 0 (black) 359 0 Chromaticity diagram 230 How Color Images are Processed ZFX-C User's Manual Version Upgrade Information The following describes the content of the version upgrade. [. . . ]