Just wire the relay to the AC line. Connect the resistor to the COM & NC contacts. Relay connects bleeder resistors when AC line is removed. No need to get fancy.
Stephen On Wed, Oct 2, 2013 at 2:43 PM, Dave Cole <linuxcncro...@gmail.com> wrote: > That could work as well. > > I thought this was part of your safety circuit to bring the power supply > voltage down to zero ASAP. As in "the motor is running away and I need > to kill the drive". > > Dave > > > > On 10/2/2013 1:11 PM, andy pugh wrote: > > On 2 October 2013 17:33, Dave Cole <linuxcncro...@gmail.com> wrote: > > > >> When the power drops out the contactor drops out and will > >> not pull back in when the power recovers unless you push the "power on" > >> button. > > I think I am happy to trust this to HAL. I may add an input to HAL > > from the contactor "discharging mode active" and interlock that to the > > DC bus voltage so that I can't re-energise the PSU until the caps are > > down below a few volts. > > > > (There is a separate LinuxCNC-controlled contactor that powers up all > > the AC loads, servo PSU, VFD, Ikea LED lights…) > > > > > ------------------------------------------------------------------------------ > October Webinars: Code for Performance > Free Intel webinars can help you accelerate application performance. > Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most > from > the latest Intel processors and coprocessors. See abstracts and register > > http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
