4/2/2016 9:48 AM | |
Posts: 2 Rating: (0) |
I study Mech engineering at Stellenbosch University and would appreciate any advice or help you can offer with programming in the Siemens PLC software. I am familiar with the Siemens software through doing practicals, however all the practicals are set out with very strict instructions and are easy. I now need to figure out how to power a RC servo motor using the PWM on the PLC. What I know: The servo motor needs a certain pulse to set it to a certain position, but I am unsure how to do this through the PWM on the PLC. I need to set it to a clockwise position and an equal anti clockwise position depending on what the user clicks in an intouch program or what table. The servo motor needs only 5V where the PLC we use outputs 24V from the "Q" ports so I think I will have to use a resistor or two to do a voltage divider. What I dont know: How to set the pulses (I attached an image of how I think the pulses should look) and if I need to use two different programming blocks for the two different clock wise or anti clockwise position. What type of PLC we use How to supply 5V to the servo motor and if this "Q" port is what controls the servor motor on or off. The overall circuit setup and operation of the system to program the servo motor. I would greatly appreciate any assistance with any of the above, Regards David Leigh ------------------------------------------------------------------------------------------ |
Last edited by: Min_Moderator at: 4/4/2016 2:56:45 PMNew subject after splitting |
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4/2/2016 10:01 AM | |
Posts: 2 Rating: (0) |
We use a SIMATIC S7-1200 |
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