Stepping motor running at 9375 rpm

It's not a jet engine but a stepping motor accelerating smoothly from 0 to 9375 rpm. Digital resonance damping eliminates all resonances from whole speed range. In this test motor operates in open-loop and attached encoder is not in use.

The drive is Granite Devices VSD-E operating at 65VDC.

Category:

Science & Technology

Tags:

• stepper
• motor
• servo drive

[stanley6602]

Hi,What's the driver IC at power stage you used?

[granitedevices]

It is our own controller chip with advanced stepper control functions.

We start selling the controller chip when development is fully finished.

[n00448198]

with 25600 steps/rev, that means you have 25600/200 different duty cycles... which is 128. So do you have a 128 different clock sources or are you using just one PWM... Thats some amazing speed. Love the video

[granitedevices]

@n00448198 Yes the drive uses sinusoidal waveform with 512 points. That generates 25600 steps/rev.

[pilleyuppo23]

Nice... How does it work? Back EMF detection?

[granitedevices]

@pilleyuppo23 No Back EMF detection, just very fast current control of coils to rotate the motor.

[logycam10]

Wow... i did not know that was possible, nice wind up sound though.

[reptile202]

@granitedevices Care if I ask a question?

[hameeds01]

at 9375RPM what torque this motor has??

[hameeds01]

Woow thatz really cool a Stepper Motor with encoder attached

[baddog777]

step motor! imposibla..

[Petardo238]

WOW ! ! !

[matt9741399]

That's one big encoder on the back there! What's the coil inductance and chopper input voltage?

[redtop91]

My first thought when seeing how awesome this was, was to post "Touch it!" as my comment. Once I got to 0:18 I realized that great minds think alike hahaha