Machsupport Forum

Third party software and hardware support forums. => dspMC/IP Motion Controller => Topic started by: kvnnos on November 28, 2012, 11:09:21 AM

Title: Servo direction
Post by: kvnnos on November 28, 2012, 11:09:21 AM

Hello,

I have DSPMC V2. How i can give direction to inverter that have two digital inputs, one for each direction? I use Mach3. I know that Mach3 use pulse for step/dir but i have inverter with 2 digital inputs for direction and one analog 0-10V to control the speed of servomotor.

Thank you

Title: Re: Servo direction
Post by: kvnnos on November 30, 2012, 08:31:40 AM

I found this.
http://www.cnc4pc.com/Store/osc/product_info.php?cPath=25&products_id=58

Does anybody used it?

Title: Re: Servo direction
Post by: TOTALLYRC on November 30, 2012, 06:28:51 PM

What is the make and model of the drive/inverter that you are trying to run.
If it is a standard VFD, you use the analog output from the DSPMC to control the speed. You then assign 2 outputs from the DSPMC to give forward and reverse.

Mike

Title: Re: Servo direction
Post by: kvnnos on December 01, 2012, 07:17:49 AM

I use ActiveCube inverter from Bonfiglioli (not step/dir controlled).

DSPMC need encoder for feedback if i use analog output and I don't have. I have closed loop servo - inverter with resolver.

I will try without encoder feedback.