On May 23, 2012, at 1:11 AM, Roland Jollivet wrote: > I'm no expert on this, but I think there should be a secondary limit switch > connected to a relay and a power resistor. If this is activated, it will > connect the motor directly across the resistor. The resistor should be > matched so that the motor will halt in two or three inches from full speed. > This would be a safegaurd outside any electronic control. > > Of course, this would only apply to DC motors, but for AC motors you could > have a similar set-up with a DC power supply.
Hi Roland, Interesting idea. The only downside of something like this is that I would lose 6 inches of machine space, so it would be better if the motor never even ran away in the first place. Jon, can your power switch and braking module (and/or the brake on the Gecko Interface) be used like for something like this? http://pico-systems.com/osc2.5/catalog/product_info.php?cPath=3&products_id=24 Thanks, Jeshua Lacock Founder/Engineer 3DTOPO Incorporated <http://3DTOPO.com> Phone: 208.462.4171 ------------------------------------------------------------------------------ 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
