Teach Manual AlphaProx Inductive distance measuring sensors with linear characteristic, teach input and digital output Version: 1.0 General Information This manual applies to AlphaProx sensors featuring the following teach modes (according to the datasheet): 1-point analog Window digital Factory reset The assembly instruction also states the available teach modes (on page 3) and the sensor type (on page 2): Sensors with linear characteristic, teach input and digital output (IRxx.DxxL-xxx.xxME) General procedure: To teach the sensor, the teach wire must be connected to the positive supply voltage of the sensor (+Vs). Depending on the duration of the contact, different teach levels can be selected. A flashing LED indicates that the teach procedure has started. Teach Level 1 (1-Point Teach Analog) The 1-point teach analog is typically used in applications where a short setup time are desired and the installation tolerances shall be compensated. Two situations can be distinguished: 1) Minimum distance: During the teach procedure the target is positioned at the minimum distance relative to the sensor (position “A” in the lower graph). In the application the target moves away from the sensor. In this situation the sensor will be taught to provide an output signal of 0V (or 4mA) at position “A”. 10V/20mA slope 0V/4mA distance A Position target at distance «A» Sd max Connect teach wire to +Vs (2s). When yellow LED starts flashing with 1Hz, cut connection Connect teach wire shortly (>0.2s) to +Vs Wait 4s (yellow LED keeps flashing) Red LED flashes shortly Teach-In finished Teach procedure: 1-point teach analog (the target is close and moves away from sensor) 2) Maximum distance: During the teach procedure the target is positioned at the maximum distance relative to the sensor (position “B” in the lower graph). In the application the target moves towards the sensor. In this situation the sensor will be taught to provide an output signal of 10V (or 20mA) at position “B”. 10V/20mA slope 0V/4mA Position target at distance «B» distanc e B Sd max Connect teach wire to +Vs (2s). When yellow LED starts flashing with 1Hz, cut connection Connect teach wire shortly (>0.2s) to +Vs Within 4s: Connect teach wire shortly (>0.2s) to +Vs (yellow LED keeps flashing) Red LED flashes shortly Teach-In finished Teach procedure: 1-point teach analog (the target is far away and moves towards the sensor) When using the 1-point teach analog the sensor will either never reach the maximum output value (case 1) or the minimum output value (case 2). en_TA_IRxx.Dxxx (analog & digital).docx 23.03.2016 10:47/lop V1.0 ANW_81196567 2/3 Baumer Electric AG Frauenfeld, Switzerland Teach Level 2 (Window Teach Digital) The window teach of the digital output is used to define a valid or invalid range within the measuring distance. Therefor the target has to be placed at position A and B successively. Depending on whether position A or B is closer to sensor the output signal behaves as follows: digital output, if A<B HIGH LOW Position target at distance «A» digital output, if A>B HIGH A LOW B Sd max Connect teach wire to +Vs (4s). When yellow LED starts flashing with 2Hz, cut connection Connect teach wire shortly (>0.2s) to +Vs B Position target at distance «B» A Sd max Connect teach wire shortly (>0.2s) to +Vs Red LED flashes shortly Teach-In finished Teach procedure: Window teach digital Teach level 1 (for the analog output) and teach level 2 (for the digital output) don’t interfere with each other. Both teach levels can be executed one after the other in order to teach both outputs independently. Teach Level 3 (Factory Reset) This will restore the default settings the sensor had when leaving the factory. The default settings are stated in the mounting instructions which are delivered with the sensor. Connect teach wire to +Vs (6s). When yellow LED starts flashing with 4Hz, cut connection Red LED flashes shortly Teach-In finished Teach procedure: Factory reset If the teach wire is connected to +Vs for more than 10s, the teach procedure is aborted and the sensor keeps its previous settings. This is indicated by an LED flashing frequency of 8Hz. en_TA_IRxx.Dxxx (analog & digital).docx 23.03.2016 10:47/lop V1.0 ANW_81196567 3/3 Baumer Electric AG Frauenfeld, Switzerland