AMCI 3102 Stepper Controller + Micrologix 1200 + Anaheim Automation Stepper Driver

[mike64b]

Hi, I've got a micrologix 1200 and I've written a stepper application following the sample application included with the AMCI 3102 stepper controller ( http://amci.com/plc-modules/plcmodules-1762-micrologix-stepper-servo-controller.asp ).

I will be connecting the AMCI module to a 3 axis stepper driver (I'm only using 2 axis though) from Anaheim Automation: http://www.anaheimautomation.com/ma... DPF72002, DPF72003, DPF72004 Users Guide.pdf

I've taken a picture of the AMCI module pinout: http://imageshack.us/photo/my-images/42/screenhunter02dec060833.gif/

I'm a bit confused on how the hookup between the AMCI and Anaheim automation driver would go...

According to the Anaheim Automation manual, the driver has Clock, Dir (1=CW, 0 = CCW) and Motor On/Off for each axis that must be connected.

My thoughts would be that the output of the AMCI must be connected to the clock inputs direction inputs using AMCI outputs #33-36 in an open collector configuration as shown in the AMCI manual on page 32. ( http://amci.com/pdfs/plc-modules/3102-micrologix-motion-module.pdf )(There is also a differential configuration but I don't think my driver supports that.)

Can someone verify if my thinking is correct? I'd appreciate it.. Thanks!

 

[kolyur]

I don't have any firsthand experience with your setup but I do have an application coming up that may require an AMCI 3102 so I have a vested interest in what you're doing.

I believe you need to follow the AMCI diagram on page 33, with the pullup resistors. Your power supply will need to be 5v, not 12-24v as shown in the diagram, since the Anaheim manual lists logic high voltage as 3.5-5v. The connections will then be:

33/34 to 6 (pullup to 5v)
35/36 to 5 (pullup to 5V)
39 to 7 (also to DC common)

You may have to experiment with resistor values. Start high and work your way down. Values in the range of 1K-10K usually work for these kinds of things.

EDIT: You may not need the pullups at all. After reading the Anaheim manual more closely, I see that "the clock inputs are internally...pulled up to +5Vdc through a 10KU resistor for negative going Clock inputs." I'd suggest making the connections above without pullups and see what happens. Be sure to set the jumpers correctly. :nodi: