I am using the following motor
I am using it as a bipolar stepper and the A4983 driver, calibrated at 70% rated current.
I find that at less than 15rpm, the motor starts fine and gives me the desired rpm.(Verified with an encoder)
But when i start at 50 rpm, with the same load as before, i notice that the motor shaft doesn’t even rotate. If i give it a substantial push, it sometimes picks up speed to 50rpm.
When repeated at 100rpm, it doesn’t continuously rotate even for a substantial push.
What could be wrong.
My load doesn’t seem, to be that high, as i can easily move it even with my finger.
What am i doing wrong?