I have seen in the manual that by activating either Aux 1 or Aux2 in the Outputs section they become active, but how to do control the PWM characteristics?
I’m looking into whether I can run a 12v cooling pump utilising the following motor controller
If I understand the controller controls, I can send a ‘Low’ to the DIR pin, a ground to the ground pin and then send the ADU PWM output to the PWM pin.
This should be all that is needed to run the pump.
Is it a case of creating a table? if so, can somebody please provide an example of how this could be set up for PWM? I would like to run the pump based on engine coolant temperature, speeding it up and slowing it down dependant on temperature. Any help here would be greatly appreciated too
in this example the Aux1 enable channel is set to ‘one’ so it will always be active.
The instructions linked are pretty good, the one note states that output frequency will match input frequency. You’ll have to play around with this for whatever motor and application you’re using and different motors like different frequencies and the heat generated can change.
Typically PWM inputs are 5% to 95% as above and below those ranges become unstable or unpredictable but you may find with this controller that 0-100 works just fine.
