I have a question about towing your robot when it is offline. I will have two wheels permanently attached to DC motors, which in turn are attached to the 30 amp motor controllers. When everything is off (let’s say batteries removed from the robot) is it then safe to manually tow or push it around?
As far as I understand DC motors, they will act as generators when manually turned, sending back current to the controllers. Can these handle such currents when they are switched off (not powered)? Or is it safer to put a (high current) switch between the controller and one of the two motor wires to physically detach it when I want to do some pushing or towing? Will this then not destroy or hurt the motor, since the current has nowhere to go?
And what when the power is on, and I push the robot around?
Sorry for this maybe strange question, but better safe than sorry for my first bot