step driver 5A and step motor 6.4A

**gorantec** · 01-27-2009, 05:52 AM

Please advice i have scheme for 5A step driver but my motor is 6.4A will work in 5A driver and what will lost only torque or ?

**johnmac** · 01-28-2009, 08:24 AM

Thats the way I understand it. My motors have a slightly higher amp rating than the drivers and it doesn't seem to cause any problems.

John

**ger21** · 01-28-2009, 11:22 AM

You'll lose about 22% of the torque running the motors at 5amps.

**Clement95** · 02-10-2009, 05:25 PM

Hi gorantec,
I am interested for building a 5A driver bard for bipolar stepper. Do yuo have scheme available?
Clement

**gorantec** · 02-11-2009, 03:28 AM

Originally Posted by Clement95

Hi gorantec,
I am interested for building a 5A driver bard for bipolar stepper. Do yuo have scheme available?
Clement

the scheme i found here : http://www.todopic.com.ar/foros/index.php?topic=23274.0 but not yet tested since i have decide to build unipolar driver for my 6.4 A motors .Please let me know if you try what will happen .

**contactirfu** · 02-13-2009, 07:20 AM

that uses L297 and I don't think it has pretty micro stepping like that of a gecko.

Thread: step driver 5A and step motor 6.4A