On Wed, 2011-09-21 at 07:29 +1000, Frank Tkalcevic wrote: > I have a Hitachi SJ200 VFD that I will be hooking up to EMC. I'm just > wondering what the best combination of signals I should use to control, and > monitor it.
I'm using two digital pins and a DAC to run my SJ200. So far, so good. Adding a Modbus link would provide more features. http://www.wallacecompany.com/cnc_lathe/HNC/00024-1a.jpg http://www.wallacecompany.com/cnc_lathe/HNC/ > What it seems to lack, compared to my servo amplifiers, is an Enable line, > something that stops it from doing anything unless the Enable is asserted. > It has Trip input, but that can only be deactivated by using a reset input. > I plan to use the RS485 connection to control the speed. It has a alarm > output that I can use to detect a fault. If I have an e-stop, the mains relay will trip, and someday, the magnetic brake will stop the spindle. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
