Guess you want to use a common brushed DC motor. And you do not need reversing direction.
Then use a plain MOSFET power transistor AND a flyback diode for the motor. Do also add an EMI filter for the motor. PWM control from pico or RPi will drive this.
To avoid ground problems, add an optocoupler between RPi and the mosfet.
If this is rocket science for you, then have a look here to select a driver board: https://www.pololu.com/category/11/brus ... or-drivers
This is a bit of rocket science for me Image may be NSFW.
Clik here to view.
Looking over the manual for the motor control that is currently being used, there’s a simple drawing for use of a single pole switch to change between 2 different pot inputs. Would there be an easy way to utilize something like this to have the Pi control a pot, then I would still retain the original pot on the control panel for manual control?
Someone had mentioned in the past, using a stepper motor to actuate a pot. Would this just be overcomplicating things?
If I can utilize the motor control that we currently have for this 90vdc motor I would prefer to go that route. The control is proven reliable, so why change what ain’t broke. I had originally though of going back to the old 30v motor but the more I think of it, that’s probably not the best option
Statistics: Posted by Ykdave — Sat Aug 31, 2024 5:38 pm
