On Oct 15, 2011, at 7:29 PM, "Peter C. Wallace" <p...@mesanet.com> wrote:
> On Sat, 15 Oct 2011, Tom Easterday wrote: > >> Date: Sat, 15 Oct 2011 15:28:19 -0400 >> From: Tom Easterday <tom-...@bgp.nu> >> Reply-To: "Enhanced Machine Controller (EMC)" >> <emc-users@lists.sourceforge.net> >> To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> >> Subject: Re: [Emc-users] config without encoders >> >> >> On Oct 15, 2011, at 12:48 PM, Dave wrote: >> >>> Tom, >>> >>> I'm running a couple of stepgens via a 5i20 card on one machine and it >>> is running much faster than what you are and I am not seeing overshoot >>> problems. >>> >>> I suspect your Max_accel below is lower than the accel values you have >>> set in the INI file so you are telling the stepgen to go faster than >>> what you have limited it to below. >>> >>> Try entering some large values below directly for max accel and max >>> velocity and see if your problem doesn't go away. That way the stepgen >>> will not attempt to limit the velocity of accel. >>> >> >> The values below just reference the ini. For max accel and max vel the ini >> values are: >> >> MAX_VELOCITY = 39 >> MAX_ACCELERATION = 120 >> >> Though we have also tried much lower values like 80 and 50 for acceleration. >> >> -Tom >> >>> Dave > > > Whats is the stepgen max velocity set for? This needs the 10% overhead abouve > your actual maximum speed I don't think we have stepgen max velocity set. I do think we have stepgen max accel set to a number at least 10% above max accel. Is this the 10% you are referring to in your last message? Or was it for steplen and stepspace? Tom ------------------------------------------------------------------------------ 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-d2d-oct _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
