Re: Too many external ESTOP messages..
- I've managed to "cure" my estop problem. It turns out that my SmoothStepper was set to receive the estop input on port 1 pin 15 which I didn't have connected. It was floating all this time without an issue, until now. Simple fix was to move the input to port 3 pin 1 which has a 4.7K pullup already. No more spurious estop signals.
Thanks goes to Greg at Warp9 for the solution.
--- In SherlineCNC@yahoogroups.com, "kerickson" <kaerickson@...> wrote:
> I've just finished re-building my stepper controller box; bigger box, added DB-9 connectors for limit/home switched and spindle control. The DB-9 connectors are not connected to anything outside of the box - just from the G540 controller to the DB-9 connectors.
> Everything runs OK with the exception of too many "External ESTOP received" messages on MACH-3 control panel. I've gone over everything that I can think of - lose ground connection. I've using the wiring diagram from Homman Designs and that means that my ESTOP switch is wired in parallel from the AC switch to the power supply.
> Before this rework the Sherline 2000 mill was working very well with the exception of the buffer underruns with the SmoothStepper which clears up after running a few minutes.
> I'm open to suggestions as to where to look for this source of the this problem.