Can you use an extra pole on your physical estop to set a logic signal and use this to flag the estop as being pushed in? Because, ideally, you'd _want_ a signal to the operator that indicates when the estop is in. In that case, you could suppress those error messages if that bit is set or else alert that something else may be wrong with the spindle.
On the matter of wiring. This is how to correctly wire a bidirectional e-stop without damaging your VFD. You need 5 contactors/relays to do it properly in all-metal. You should wire a spindle enable and a brake contactor in parallel. These connect to a 4P2T DIR relay (or a relay controlling contactors if you want to change direction on the fly regularly) that is wired as a flip-flop. Between that and the actual spindle will be a FWD contactor and a REV contactor. Both the spindle enable contactor and brake contactor should connect the VFD to the spindle through which-either directional contactor is set by the flip-flop. The stop contactor should be self-latching through a signal amplifier that charges the latch capacitor from the spindle tach or encoder signal so that when the spindle is successfully plug-stopped, the stop contactor opens. *The Estop should latch the "stop" contactor, pulse the DIR flip-flop and open the spindle enable contactor.* This will plug-stop the spindle and allow the VFD to absorb the electrical energy with correct polarity. That is how you wire an estop in relay-logic without the risk of damaging your VFD. Your should _never_ cut power to the VFD while the spindle is in motion or the inertia of the still spinning spindle will back-drive the VFD and blow any polarized capacitors in its output. *Ryan McIntosh* PEBKAC.ca Technology Solutions (204)770-3682 r...@pebkac.ca On Sun, Nov 20, 2022 at 10:02 AM John Figie <zephyr9...@gmail.com> wrote: > John Figie <zephyr9...@gmail.com> > 9:59 AM (1 minute ago) > to emc-users > I continue to make progress on the Clausing NC. I have the Huangyang GT > drive successfully communicating with the hy_gt_vfd comp. The only issue I > see is that this component does not have a way to stop communications like > the similar hy_vfd comp does. So If I start linuxcnc before the Huangyang > drive is powered on then I get a stream of error messages in the window > from which linuxcnc was invoked. So maybe I need to rethink how my e-stop > logic is wired. I have a contactor to cut the Huangyang power when the > e-stop is pressedI have an external physical e-stop button as well as the > one in the axis GUI. The axis GUI starts up with the e-stop pushed in, so > until the drive is initialized I get all of these errors. Maybe this is not > a big deal but I don't really like it. > > The Clausing has 3 speed gearbox and provisions for a spindle encoder, > which I will be installing soon. The gearbox has switch contacts to > indicate which gear it is in. I see there is a component called "spindle" > which includes provisions for gearboxes. Should I use this component > instead of the "motion spindle" component? If so will I lose some important > functionality like spindle synchronized motion for multi start threading or > G65 constant surface speed? > > Just asking before I waste time going down the wrong path. > > Thanks in advance > John Figie > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
