Quote:
|
However, I was tought to when I designed a system using a DC motor, to always design it so the it uses half the maximum power (1/4 the stall torque). For the Drill motors, this is at barely above 30 amps, and for the CIMs it is barely under 30 amps. Thus, with my designs, I feel somewhat safe using the 30 amps.
|
I dont understand this statement at all - when your motors are not moving and you throttle up, the motors start at the stall torque and will draw the stall current, no matter how your system is designed
and if the motors cant get up to the speed at which they draw less than the rated value of your breaker, for any reason, the breakers will trip - I suppose you could have your bot geared down low enough that the wheels will spin without stalling, keeping the motors at a high RPM rate, but I dont see how you can guarentee that will always be the case, that wheels will never 'hook up' on you, or that you wont be pushed backwards, or have something else trying to stop your wheels from turning.
I cant think of any reason to limit your drive motors to 30 amps when you are allowed to use 40.