I recently bought a Tic T500 step controller and decide to test it with this step motor:
I followed the instructions on the relative page on the Pololu website and tried to used the USB software on my PC. I set the motor current to 1.5A and microstep to fullstep. I’ve connected a 10A 24V power supply to the controller. By using the controller I noticed some strange things:
The first time I energize the whole thing (first switch ON power supply, then energize motor from TIC software), I hear a buzzing noise coming from the motor. This noise disappears in 15-20 seconds. If I try to command the motor during this time, it does not move (blocking noise) or it moves “randomly”. If I wait 15-20 seconds without commanding and then try to command, the motor responds good at high pulse rate (>500pulses/s). At low pulse rate (<500 pulses/s) it goes like 90% of the steps forward and 10% backward.
I’ve tried to use the controller with another stepper motor from the same company (not the same stepper but similar characteristics) and I had the same behavior. I tried to lower the current to 600mA but the behavior remains (the buzzing noise from the motor disappears).
As a last thing, I tried to command these motor with a A4988 driver with STEP-DIRECTION signals given by a microntroller and I had no issues at 1.5A even by applying the step signal after a small amount of time after ENABLE signal (less than 100ms).
Does anybody any idea on which is problem I’m experiencing? Is it the motor type? Do I have a faulty TIC Driver?
I have to say that I have checked the wiring of the motor and of the TIC and it does not seem to be related to it.
Thank you in advance.