What are the major points for choosing a lathe spindle encoder resolution? My controller has a count limit of 300k counts per second. Currently, my encoder has 10k pulses per revolution, so I will have an RPM limit of 1800 RPM. So, obviously there is an upper limit. Is there a lower limit too?
I get the impression that for threading, the index pulse is used, so the resolution is not important here. For Constant Surface Speed, the higher the resolution, the finer the granularity in the feedback signal. But I don't think accuracy is a big issue with CSS. The only time I would think high resolution would be needed would be for live tooling milling operations, where the spindle location is very important. I would like to have an RPM limit of 3k RPM. So, should I reduce the current encoder resolution by one half, or not worry about it because the encoder is only used at lower RPM? Any help with this would be appreciated. Kirk Wallace ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
