-
07-08-2017 #21
-
07-08-2017 #22
Last edited by Agathon; 07-08-2017 at 06:16 PM.
-
07-08-2017 #23
-
07-08-2017 #24
This is what the manual says in the introduction:
Control Functions:
Any one of the following 4 control modes can be selected in the parameter settings.
S Position Control (Factory Setting)
Controls the position and speed of the Servomotor very precisely with pulse-train input signals. Any one of the following 3 pulse trains can be selected: forward/reverse pulses, feed pulses/ directional signals, or 90 degree differential phase (A/B phases) signals.
-
07-08-2017 #25
I'm going to ask a simple question, you have compared the full model number on the drive to the manual?
It's not got any additional codes that could signify it's a slightly different model?
I've just searched for Omron R88D-U Analog, and it's thrown up a link to an analogue input version of the drive...Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
-
07-08-2017 #26
-
07-08-2017 #27
At least you know what the problem is now!
Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
-
08-08-2017 #28
Well, it's not all negative. It's a steep learning curve, but I'm pretty sure the 200W servos will drive the Fehlmann table without too much trouble. There seem to be plenty of Omron/Yaskawa drivers about and I'll think hard about a use for the three analogue drivers I have - they'd make an excellent power feed for a small mill.
It is a lesson in there not being any free lunches and if something is a bargain price then there's a reason. I shall embark on the next purchase with the question of analogue and digital firmly planted in my consciousness!
-
08-08-2017 #29
I know I'm going to regret asking this as I'm sure it will be more complex and expensive than just shoving these drives back on fleabay, but...
A brief and desperate search leads me to believe that it is possible to control analogue servo drives for position by converting step and direction to analogue signals. Anyone have any knowledge/experience?
This chap appears to be doing the very thing:
-
08-08-2017 #30
if you have a suitable spare galil lying around, then its a very valid option, but galil boards are not that cheap.
I've seen step/dir to +/-10v interfaces mentioned, but can't remember ever seeing one that's commercially available.
If you did want to run analogue servos, a CS-Lab Csmio/ip-a, Dynomotion Kflop+Kanalog, or whatever the Mesa analogue output board is, would be far better options.Avoiding the rubbish customer service from AluminiumWarehouse since July '13.
Thread Information
Users Browsing this Thread
There are currently 2 users browsing this thread. (0 members and 2 guests)
Similar Threads
-
Breakout board to Telemechanique Altivar 18 wiring (Mach3)
By Agathon in forum Motor Drivers & ControllersReplies: 14Last Post: 08-07-2017, 07:12 PM -
which breakout board?
By johngoodrich in forum General ElectronicsReplies: 4Last Post: 12-03-2017, 01:54 AM -
FOR SALE: 3 Axis CNC USB Motion Card Mach3 200KHz Breakout Board For Stepper/Servo Driver
By dudz in forum Items For SaleReplies: 0Last Post: 03-01-2015, 03:40 PM -
eBay: UIM2901-5A Mach3 breakout board with spindle speed control
By Fivetide in forum Items On eBay UKReplies: 0Last Post: 05-02-2013, 07:25 PM -
Breakout Board
By croy in forum Electronic Project BuildingReplies: 10Last Post: 18-08-2011, 07:50 AM
Bookmarks