A DC motor can easily achieve 5000 RPM in about 2 seconds, too fast to switch off,

But there has been no suggestion of applying full voltage at switch on?
The torque for a stepper motor is constant from 0 RPM to max operating RPM.
Only RPM controlled, not torque.

 

But there has been no suggestion of applying full voltage at switch on?
The torque for a stepper motor is constant from 0 RPM to max operating RPM.
Only RPM controlled, not torque.

Accidents and turn-on transients do happen and while I have no ideas about the cost of the engines the TS is breaking in, I am guessing that they are not cheap. Thus avoiding the possibility is a good path to follow.

 

. I know enough about programming to do this(Not a Expert). I don't believe that can be done with a open loop dc system.

If using a programmed device, a DC motor such as I described could be used by monitoring the RPM and controlling a DC motor in a suitable manner, some kind of feed back seems inevitable where the varying conditions apply from one motor to the next

 

Well I received some new parts. After changing out the first part I found the problem. The Adjustable Signal Generator/Speed Regulator was failing. I replaced that device and all is good. I also connected a RPM device and that is working nice as well. I have not yet attempted the torque measuring device due to the fact I wanted to get the rest of the unit working correctly before inducing any more problems. Thank you for all your help so far.

 

Now I am wondering about the speed and directions used for the break in process, if that is not a trade secret. Also about forward and reversed directions for spinning the engines.
And it will be interesting to discover which torque measurement scheme is selected.

 

Now I am wondering about the speed and directions used for the break in process, if that is not a trade secret. Also about forward and reversed directions for spinning the engines.
And it will be interesting to discover which torque measurement scheme is selected.

If you wanted to take this offline I could get into the details. If you want contact me at <The Email was deleted, please don't show your Email again, it could bring the spambot to you and the forum.>