User manual OMRON ZX-E

[. . . ] Z166-E1-02A Smart Sensors: Inductive Displacement Type ZX-E Series OMRON Corporation Industrial Automation Company Sensing Devices Division H. Q. Application Sensors Division Shiokoji Horikawa, Shimogyo-ku, Kyoto, 600-8530 Japan Tel: (81)75-344-7068/Fax: (81)75-344-7107 Regional Headquarters OMRON EUROPE B. V. 4, D-71154 Nufringen, Germany Tel: (49)7032-811-0/Fax: (49)7032-811-199 OMRON ELECTRONICS LLC 1 East Commerce Drive, Schaumburg, IL 60173 U. S. A. 83 Clemenceau Avenue, #11-01, UE Square, 239920 Singapore Tel: (65)6835-3011/Fax: (65)6835-2711 OMRON (CHINA) CO. , LTD. [. . . ] There are three judgement outputs: HIGH, PASS, and LOW. HIGH threshold value Measured value LOW threshold value (ON when measured value > HIGH threshold value) Output (ON when LOW threshold value Measured value HIGH threshold (ON when measured value < LOW threshold value) Section 5 Entering Threshold Values The following table outlines the three methods for setting the threshold values. Method Direct input Details Sets threshold values by direct numerical value input. Direct input is useful when you know the dimensions for an OK judgement or when you want to fine-tune threshold values after teaching. Performs measurement and uses the measurement results to set threshold values. Position teaching is useful when threshold samples, i. e. , with the upper and lower limits, can be obtained beforehand. Performs measurement continuously while the keys are held down and sets the maximum and minimum measurements during that period as the threshold values. Automatic teaching is useful when you want to set threshold values by starting the device and obtaining real measurements. Position teaching Automatic teaching Hysteresis (hysteresis width) can also be set for threshold values. Set hysteresis when judgements are unstable to prevent chattering. p. 102 When making settings while still connected to an external device, set the Amplifier Unit judgement's output hold input to ON so that the output to the external device remains unchanged. The judgement outputs in T mode will be the same as in RUN mode, i. e. , HIGH, PASS, and LOW. ZX-E Operation Manual 97 Section 5 DETAILED SETTINGS Inputting Threshold Values Directly The threshold values can be set by directly inputting the numeric values. Direct input is useful when the dimensions for an OK judgement are known beforehand or when fine-tuning threshold values after teaching. Moving to T Mode 1. Move the threshold switch to either H or L, i. e. , the threshold to be set. The current measured value is shown on the main display and the threshold being set (value for the threshold switch selection) will be displayed on the sub-display. Section 5 Entering Threshold Values 3. Press one of the Cursor Keys. The leftmost digit of the threshold value will flash on the sub-display. 4. Use the Cursor Keys to set the threshold value. Move between digits. Increment and decrement the numeric value. 5. Press the ENT Key to confirm the settings. The threshold values will be registered. Countermeasures for Setting Errors One of the following two errors has occurred if the display reads ERRLH or ERRHL. HIGH threshold value < LOW threshold value HIGH threshold value - LOW threshold value < hysteresis width Hysteresis Setting, p. 102 If an error is displayed, the threshold value has not been updated. Set the threshold values again. 98 ZX-E Operation Manual Section 5 DETAILED SETTINGS Position Teaching When teaching is executed, measurement is performed and the measured values are set as the threshold values. Position teaching is useful when threshold samples, i. e. , with the upper and lower limits, can be obtained beforehand. Sensor Head Sensor Head Threshold sample (upper limit) Teaching value = LOW threshold value Threshold sample (lower limit) Teaching value = HIGH threshold value Hold, trigger mode, and scaling settings that have been made before teaching are reflected in the teaching measurements. Section 5 Entering Threshold Values Moving to T Mode 1. Move the threshold switch to either H or L, i. e. , the threshold to be set. The current measured value is shown on the main display and the threshold being set (the value for the threshold switch selection) will be displayed on the sub-display. 3. Place the threshold sample in position. The main display value changes. 4. Press the ENT Key for at least one second and then release. The measured value at the point that the ENT Key is released will be set as the threshold value. [. . . ] 90 Output data settings for non-measurement RUN or T mode/Resetting input Mutual interference prevention/No. of Units Hold/Sample hold Scaling setting The meaning of this display item depends on the main display. : Displays output-related functions from special menu : Linearity adjustment Special menu Displays scaling, monitor focus, and other special functions. Linearity adjustment/Sensing object material/Stainless steel (SUS340) Mutual interference prevention setting Timer time The meaning of this display item depends on the sub- display. [. . . ]