Operating Voltage of Stepper Motors

Projects General Guidance
1

Hello guys,

I am going to buy a stepper motor for my project. This one.

Here are the specifications:

E21H4U-2.5-900
Linear Aktuator Hybrid
External linear, bipolar,
Voltage: 2.5VDC
Resolution: 0.0015mm/step
Screw Length: 101.6mm

So...

The voltage is defined as 2.5 VDC. I am using the DRV8825 Pololu Stepper Driver, this one.

My question: will my motor work with this driver?

In the datasheet of the Driver I read this:

General specifications
Minimum operating voltage: 8.2 V
Maximum operating voltage: 45 V
Continuous current per phase: 1.5 A2
Maximum current per phase: 2.2 A3
Minimum logic voltage: 2.5 V4
Maximum logic voltage: 5.25 V4

Thank you,

Joao.

2

So...

The voltage is defined as 2.5 VDC.

No the voltage in the data sheet is not the voltage you use, it is the voltage where the maximum current will be reached so it is the minimum voltage. The important parameter for that motor is 0.49 A per phase, that is what you have to supply. The other thing is that it is horrendously expensive for what it is.

Yes it will work with that driver, the higher voltage you can supply the faster you can make it go. You just set that driver to delever half an amp.

3

These links may be of interest.
Stepper Motor Basics
Simple Stepper Code

...R