I plan to use the VF-s11 driver. I actually have it loading successfully in my Hal and Ini setup and connecting to the usb-rs485 device but all that it can do so far is count transmission errors. My problem is, if I understand it correctly, that the Toshiba protocol a) uses a higher voltage than any of the standard protocols, b) is inverted—though I’m not sure what the implications are of that —, and c) is single-ended instead of differential. I hope to fix this with a few resistors and inverters.
Thaddeus Waldner ________________________________ From: Kirk Wallace <kwall...@wallacecompany.com> Sent: Sunday, March 3, 2019 1:14 PM To: emc-users@lists.sourceforge.net Subject: Re: [Emc-users] VFS-11 modbus driver On 1/28/19 1:57 PM, Thaddeus Waldner wrote: > Hi, > > I have a small machine with spindle motor driven by a Toshiba VFS-11 > vfd. I currently have a forward and reverse signal controlling the > drive but I need to be able to control the speed. From what I’ve > seen, this drive connects digitally via the modus protocol, and > someone actually wrote a driver for this drive for LinuxCNC. Can > someone direct me to a list of instructions on how to get it set up > that way? Here is a link in case you haven't seen this yet: > http://linuxcnc.org/docs/html/drivers/vfs11.html also maybe: > https://libmodbus.org/docs/v3.1.4/ > http://modbus.org/tech.php This seems to work with the least fuss: > https://www.ebay.com/itm/122229951008 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
