I'll hook up a scope to it and check the phase on them I've looked at one at a time so fare and there pretty clean on my 20mhz scope I'll get the 2 channel out and check both and the same time and phase
-----Original Message----- From: Jon Elson [mailto:el...@pico-systems.com] Sent: Sunday, July 15, 2012 12:13 PM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Spindle hooked to dc servo amp andy pugh wrote: > Yes, that is normal. Encoder counters count every transition, so a 512 > slot encoder is 2048ppr. But if you turn the spindle slowly you should > see them count up in ones. > How accurate is the 90 degree shift? Halscope might be able to tell > you at a slow steady speed (if the individual pins show up in > Halscope) > They don't, when using the encoder counters of a Pico Systems board. Kasey could temporarily hook them to general digital inputs on the board to check this, if he doesn't have a hardware scope. Actually, though, if you turn the spindle at a slow enough, but steady rate, the appearance of the counts should show up in the encoder.x.velocity hal pin as a series of spikes, and should be regularly spaced. That is probably good enough to check the phasing. Jon ---------------------------------------------------------------------------- -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
