[johnd]

Hello
I have application where I need to control and drive a stepper motor. This is for a repeating indexing operation using a stored program that would be initiated
by a PLC. I don't need a cnc system such as a PC with Mach3 controlling a driver and stepper. What I am looking for is a stand alone
Unit that can be programmed by a lap top and then disconnected and placed in service. I was waiting for Gecko 215 drive to come out.
Unfortunately I am running out of time.
Anyone have any product recommendation ?

[mactec54]

johnd

Dmm have a simple 4 Axes stand alone indexer, can be programmed by a computer then unplugged, or by a SD card, it's not on there web site, send them an email, they had it at the IMTS show running 4 of there servo motors, the price was good also

[vegipete]

Anything useful in this rather lengthy thread about a rotary table indexer? It's not a ready to buy and install device but it might provide some ideas.

[Christian Knüll]

Hi,

stand alone motion controllers exist but I don't know names and prices.

However I'd consider 2 alternatives:

The PLC itself - if it is just an indexing task you should be able to do this with the PLC and a regular stepper drive alone.
If speed is not an issue it just boils down to a timer generating a fixed number of step pulses and an output to control direction.
If speed is an issue you'd also need to program a ramp - a bit more work but still no big deal.

Stand alone automation stuff is usually expensive - I'd also reconsider a regular computer - they are cheap, especially if you also use e.g. LinuxCNC.

Christian

[CroCole]

Hello
Dont know for stepper drives...
But for other see bosch/rexroth (before it was indramat) ecodrive series (3.1) or ecodrive cs ( i think that basic model of ecodrive cs is enough for ur project)... Also u can find many others have that kind of intelegent drives / motors (samsung, mitsubishi, parker ) There u can define in drive to be an indexing axis (make scaling parameters of whole mechanism with backslash compensation ) that u can control via inputs (many many options ) and get output done signal.. (Even some have integrated plc in them so u can make simple logic axis motion via inputs ) It may be expensive but it is very precise... U can even get them in position control and define pulses per revolution so they can be used like steppers but with much much more precision and power...

[LGSM3]

Teknic Clearpath MC. Very cost effective too



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[James Newton]

This is the sort of thing you can do with the Linistepper, but only if you are willing / able to code in C or ASM. For example, some people have modified the Linistepper to track stars.
Stepper Motors

[mactec54]

johnd

Here is a video of the Dmm stand a lone Indexer Board, it can do up to 4 axes, simple text programing


https://www.youtube.com/watch?v=dMim...Jko1jCpoUj6f4Q

[ger21]

Check out the Cubloc.