RMS Technologies IMDE17 INTEGRATED MOTOR + DRIVER + ENCODER - Manual (Page 13)

RMS Technologies Page 13 Version 1.04
IMD17/IMDE17 10/1/2007
8. TROUBLESHOOTING
The Motor is in Holding Position, but does not rotate.
This means that Power is being supplied to the driver and motor, so the power supply is
OK. However, the signal generator might be causing the problem. Try changing the
signal to TTL. If this doesn't help, is the external +5 VDC Power connected? Is Pin 4
(disable) touching Pin 7 (logic ground)? This will disable the driver from running.
The Microstepping does not always change to the correct step resolution.
Changing the microstepping "on the fly" might ruin the driver. It is recommended to
disable the motor from running (either turn power off, or use the disable pin), then
change the step resolution.