I've attached the app node pdf from Practical Micro Design for their PMDX-126.
My system is set up as in Figure 1 and at the time it seemed like a really good idea. The trouble is a fault from any of the drives into the PMDX-125 or 126 effectively removes the ChargePump which results in all outputs stopping and relays off. And so yes, motion of the other axis is stopped. But so is power and any position information. I like that the ESTOP is coupled into the board and results in the board disabling the Enable output and shutting off all relays. Once the ESTOP is reset regardless of the CNC software, the relays remain off so the spindle or coolant doesn't come back on with the untwisting of the ESTOP switch. But I want power off with mechanical ESTOP but not with faults. So it looks like the fault signal has to disable everything but can't cause power to go away. The ultimate goal is to be able to reset the system so that the remaining axis can function while the one that faulted is disabled. That allows some motion on the other axis to be able to get at the machine if needed. Make sense? John
AN125-1_MachinePower_02.pdf
Description: Adobe PDF document
_______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
