Created Date: March 13,2011

Created by: rrc1962

I notice that the Click output Y1 go to a high resopnse circuit, and the on off, off on speed is 5 micro second.

Can this be used to provide a pulse to a stepper motor control.

I could be way off on this, but I believe the STP-DRV-4850 stepper drive has an analog input option and the analog CLICK had analog outputs. I don't know if the STP-DRV-4850 can operate only on an analog signal.

Looks like the same drive can also accept serial commands, so that another option. Both should eliminate the need for HSIO.

Created Date: March 14,2011

Created by: Adisharr

I notice that the Click output Y1 go to a high resopnse circuit, and the on off, off on speed is 5 micro second.

Can this be used to provide a pulse to a stepper motor control.

Don't bother trying to drive a stepper with the CLICK's I/O. It's too slow to get any meaningful results. A serially controlled stepper drive is a much better option. Serial strings out to the drive to start a move and use the drive's I/O to indicate when the drive has finished.

Created Date: March 15,2011

Created by: rrc1962

Don't bother trying to drive a stepper with the CLICK's I/O. It's too slow to get any meaningful results. A serially controlled stepper drive is a much better option. Serial strings out to the drive to start a move and use the drive's I/O to indicate when the drive has finished.

I'd agree when it comes to step pulses, but direction pulses with analog speed control should work. Direction pulse frequency should be far less than step pulse frequency.

Created Date: March 15,2011

Created by: bgirouard

I agree with Adisharr, and I have used the serial commands with a Click and STP-DRV-4850 in two similar appications (the second of which I'm still working on). Do a search for my posts, and you will find at least one example on what I 've done. I did most of my programming based on AD's SCL example for the Click. It was helpful, but you can bypass converting values to text and have the values punched directly within the send command.

One detail that you should know: AD does NOT support receiving any data from the STP-DRV-4850 with any of their PLC's, only sending information out, so you cannot get current positional data from the drive (Although I haven't tried, you may be able to do this with a coprocessor on a DL unit). I had to work around this limitation (again search my posts), but I was able to get my stepper motor accurately positioned in my application.

Good Luck!