On 21 May 2012 09:26, Jeshua Lacock <jes...@3dtopo.com> wrote: > Can you tell me what exactly is the goal? Do I want the P as high was > possible while keeping it stable?
The goal is the best achievable stable servo response. The PID terms need to be whatever achieves this, but the target is very much in terms of machine behaviour, not any targets in the tuning numbers. If D isn't helping, then don't use it. But you can try negative numbers too. The systems I work on frequently have a simple P or PI controller, and many of the PID controls have D set to zero. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto ------------------------------------------------------------------------------ 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
