C11- MULTIFUNCTION CNC BOARD Rev. 9.3 - Stepper Motor ...
C11- MULTIFUNCTION CNC BOARD Rev. 9.3 - Stepper Motor ...
C11- MULTIFUNCTION CNC BOARD Rev. 9.3 - Stepper Motor ...
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<strong>C11</strong> (<strong>Rev</strong>. <strong>9.3</strong>) User ManualFig. 10 Wiring diagram to connect NPN proximity sensors with internal pull up resistor.Some NPN proximity sensor has a pull-up resistor (R1) internally. It is necessaryto know its value in order to connect safely the sensor with the BOB. Follow thisrecommendation:Connecting NPN open collector proximity sensor with the <strong>C11</strong>(R1+R2) Value (12V)Aprox. 10KΩ(R1+R2) Value (24V)Aprox. 25KΩ<strong>Rev</strong>ision: 01/27/2010 http://cnc4pc.com/TechDocs/<strong>C11</strong>R9_3_User_Manual.pdf 10/22