User manual OMRON ZFX-C10

[. . . ] Z251-E1-02 Smart Sensor ZFX-C10 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. [. . . ] containing white noise White measurement tarSpreads the white component to eliminate the black noise. gets containing black noise Measurement targets con- Softens the unevenness while keeping the image contour taining slightly unevenness intact. Measurement targets containing fuzzy areas (fluctuating lighting, etc. ) Enhances the border lines between light and dark areas in the image. V Edge H Edge All Edge Images that are difficult to Picks up the vertical border lines (contrast) in the image. pick up due to poor contrast Images that are difficult to Picks up the horizontal border lines (contrast) in the image. pick up due to poor contrast Images that are difficult to Picks up all border lines (contrast) in the image. pick up due to poor contrast Note Filter Strength The filter strength can be selected when applying the filtering options to images. Each selection of the [5x5 filter]/ [3x3 filter] in the filtering setup screen toggles the filter strength. 82 Setting Measurement Items ZFX-C User's Manual Background Suppression This function removes unwanted background from the images to exclude them from the measurement target. Setting the BGS level converts images at the lower limit value or below to density 0 and images at the upper limit or above to density 255 so that only an image of density within the range lower limit value to upper limit value is extended and turned into a measurement target having 0 to 255 tones. When you move the cursor, an image of the image at the cursor position is displayed at the cursor position with unwanted background removed. Set the BGS level while monitoring the image on screen. Example: Set the lower limit value to 100 and upper limit value to 220 Image before background is removed 0. Pattern BGS level Image with background removed 3 SETTING THE MEASUREMENT CONDITIONS L[ 060] H[ 200] Lower limit value: 100 Upper limit value: 220 Background density 0 255 Measurement target density · All parts of the image having a density of 100 or less are not treated as the measurement target and are converted to 0. · Only parts of the image within the density value range of 100 to 220 are treated as the measurement target and are extended to tones within the range 0 to 255. MENU mode - [Setup] - [Item] - [Img Adj] - [BGS level] ZFX-C User's Manual Setting Measurement Items 83 Cameras/Lighting Set the camera and lighting operating conditions for capturing images and measuring measurement targets in an optimum state. Shutter Speed Set the shutter speed to match the speed of movement of the measurement target and the lighting environment. The type of camera that is connected is automatically recognized, and only shutter speeds that can be set are displayed. List of Available Functions for Each Camera p. 151 MENU mode - [Setup] - [Cameras] - [Shutter Speed] Setting value 1/170 to 1/20000 s Description Fixes the shutter speed to the desired value. The candidates differ with the camera that is connected and setup conditions. Note Guidelines for setting shutter speed Shutter speed characteristics are as follows. Select the appropriate shutter speed to suit your inspection requirements. Shutter Speed 1/170 s · 1/20000 s Speed of Movement of Measurement Target Slow · Fast Gain Setting The sensor's gain (sensitivity) can be adjusted if bright images cannot be obtained just by the Shutter Speed and Light Control settings. MENU mode - [Setup] - [Cameras] - [Gain] Setting value x 1. 0, x 1. 5, x 2. 0 Description Sets the gain factor. x 2. 0: The gain factor is set to 2. 0X. Note Guidelines for setting gain Increasing the gains results in a brighter image, however, the noise component contained in the image also becomes more conspicuous. Select the appropriate gain factor to suit your inspection requirements. Gain x 1. 0 · x 2. 0 Image Dark Bright Image Quality Good (little noise) Coarse (conspicuous noise) 84 Cameras/Lighting ZFX-C User's Manual Partial Function Settings Set the image capture area. The items that can be selected by this function change according to the camera connected to the Controller and shutter speed conditions. List of Available Functions for Each Camera p. 151 Important When the partial function setting is changed, the size of the input image also changes. When the partial function setting has been changed, set the measurement conditions including the model conditions of measurement items and position shift compensation again. MENU mode - [Setup] - [Cameras] - [Partial Function] 3 Each selection of [Size] switches the image capture area in the following order: None (Full display) 1/2 display 1/4 display SETTING THE MEASUREMENT CONDITIONS Note Adjustment of Image Capture Area When 1/2 display or 1/4 display is displayed, the capture area can be adjusted up and down. The capture area can be moved to any position vertically. ZFX-C User's Manual Cameras/Lighting 85 Image Rate Set the Image Rate mode for capturing images. Setting a faster image rate increases the processing speed, though precision becomes worse. The items that can be selected by this function change according to the camera connected to the Controller and shutter speed conditions. [. . . ] This section describes how color images are processed. Input image Color filter p. 186 Measurement xx search, etc. Color camera Color Pickup p. 188 Area, etc. Color image Hue p. 190 Monochrome camera xx search, etc. Binary Monochrome image Area, etc. 7 APPENDICES 185 How Color Images are Processed ZFX-C User's Manual Color Filter This function improves the contrast of images. This function can be set only when a color camera is connected to the Controller. Example: With regular monochrome image conversion, the result is a lowcontrast image. Color filter processing improves contrast. Setting color filter processing There are three ways of setting custom colors: Red (AUTO) AUTO Yellow (AUTO) Magenta (AUTO) The optimum filter is automatically selected from seven color filters. Custom colors can be set for intermediate colors. Gray (AUTO) Select filter Green (AUTO) Blue (AUTO) This setting allows you to select from six color filters + gray filter to match the color whose contrast is to be improved. Cyan (AUTO) Custom filter This setting allows you to set the color filter to any custom color. You can select the desired color from the color palette. Note For monochrome images, the color of the currently selected filter is displayed as white and complementary colors are displayed as black. "Complementary colors" refers to colors that lie on opposite sides of the white point in a chromaticity diagram. [. . . ]