Re: [CAD_CAM_EDM_DRO] LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?
Posted by
Taslim Hyatali
on 2012-11-08 18:53:28 UTC
Pico-Systems
________________________________
From: Alan <writetoalan@...>
To: CAD_CAM_EDM_DRO@yahoogroups.com
Sent: Wednesday, November 7, 2012 1:14 PM
Subject: [CAD_CAM_EDM_DRO] LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?
I have a few basic questions that I'd thought I'd solicit thoughts on... Before I state these, let me define the project. It is the conversion of a Hurco KMB-1 mill. I will be using the original Electro-Craft brushed servos, LinuxCNC, and Granite Devices servo amps.
Now for the questions:
1. The Granite Devices amps can work in either step or analog mode. I plan on using a Mesa Electronics FPGA board so a step generator should yield good results. With that in mind, which way is best, analog or step/direction? Encoders will be used in either case; with step/direction the drive will monitor for stall and with analog the encoders will be used for feedback to both the drive and the control.
2. Question #1 helps drive which Mesa interface board to use, but I thought I'd ask what people have as their favorite Mesa setups, and why.
3. Is there a product *other* than Mesa's that people might recommend, and why.
Thanks!
[Non-text portions of this message have been removed]
________________________________
From: Alan <writetoalan@...>
To: CAD_CAM_EDM_DRO@yahoogroups.com
Sent: Wednesday, November 7, 2012 1:14 PM
Subject: [CAD_CAM_EDM_DRO] LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?
I have a few basic questions that I'd thought I'd solicit thoughts on... Before I state these, let me define the project. It is the conversion of a Hurco KMB-1 mill. I will be using the original Electro-Craft brushed servos, LinuxCNC, and Granite Devices servo amps.
Now for the questions:
1. The Granite Devices amps can work in either step or analog mode. I plan on using a Mesa Electronics FPGA board so a step generator should yield good results. With that in mind, which way is best, analog or step/direction? Encoders will be used in either case; with step/direction the drive will monitor for stall and with analog the encoders will be used for feedback to both the drive and the control.
2. Question #1 helps drive which Mesa interface board to use, but I thought I'd ask what people have as their favorite Mesa setups, and why.
3. Is there a product *other* than Mesa's that people might recommend, and why.
Thanks!
[Non-text portions of this message have been removed]
Discussion Thread
Alan
2012-11-07 10:14:07 UTC
LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?
jeremy youngs
2012-11-07 17:02:47 UTC
Re: [CAD_CAM_EDM_DRO] LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?
Jon Elson
2012-11-07 17:57:35 UTC
Re: [CAD_CAM_EDM_DRO] LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?
jeremy youngs
2012-11-07 18:05:37 UTC
Re: [CAD_CAM_EDM_DRO] LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?
Les Newell
2012-11-08 00:00:59 UTC
Re: [CAD_CAM_EDM_DRO] LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?
Jon Elson
2012-11-08 07:54:08 UTC
Re: [CAD_CAM_EDM_DRO] LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?
jeremy youngs
2012-11-08 07:59:13 UTC
Re: [CAD_CAM_EDM_DRO] LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?
Taslim Hyatali
2012-11-08 18:53:28 UTC
Re: [CAD_CAM_EDM_DRO] LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?
Alan
2012-11-11 08:09:12 UTC
Re: LinuxCNC: if I can choose step/dir or analog on my amps, which should I use?