[aztec]

thank you yo those who give time to read this

here is my problem:

I have a set of yaskawa ac servo driver and motor -yaskawa sdg-as . it need an analog signal. a battery will make the motor run forward and with battery in reverse polarity will make the motor turn in reverse also.

i'm thinking if a stepper bipolar driver output to___ an H-bridge to___ servo driver analog input. will this work, have anyone tried this before? or maybe a DAC or digital to analog converter?

I am desperate to make this ac servo system running or it will be a dead investment. I am ready to listen to you please share your knowledge.

checkout this out https://www.youtube.com/watch?v=xi2KYqW3Ulk.
he made the driver running with the stepper motor connect with a coupling to a dc motor that produce dc voltage to make the ac servo system running.

this is the H-bridge link: L9110S Dual DC motor Driver Controller Board H bridge Stepper for Arduino Free Shipping-in Integrated Circuits from Electronic Components & Supplies on Aliexpress.com | Alibaba Group

[jfong]

You will need something like this to make it work

Step2Linear, ViperServo

[aztec]

thank you Sir