Our Techno router has started exhibiting an issue that has defeated
several days of diagnostics; it's time to yell for help.
We are running LCNC version 2.5.0 through a Pico PPMC interface chassis
to the original servo amps. It has run in this configuration for over a
year.
For the last several days, the machine will randomly go to e-stop state.
Although we see the behavior more frequently during heavy cuts, it can
occur during g0 traverses or even while idling.
Of course, my initial thought was an intermittent open problem in the
physical e-stop chain, so I 'hot-wired' the system ( a jumper between
the two e-stop pins on the PPMC DIO card) to eliminate that potential
source; the problem continued.
This suggested that we could be getting spurious signals from the DIO
card, so my next attempt was to eliminate the e-stop signal via
modifying the hal configuration:
(from PPMC sample config)
newsig ppmcEstop bit
linksp ppmcEstop ppmc.0.din.estop.in
linksp ppmcEstop and2.0.in0
newsig EstopOkIn bit
linksp EstopOkIn estop-latch.0.fault-in
linksp EstopOkIn and2.0.out
newsig EstopOkOut bit
linksp EstopOkOut ppmc.0.dout.07.out
linksp EstopOkOut ppmc.0.dout.Estop.out
#just force e-stop to be OK
##linksp EstopOkOut iocontrol.0.emc-enable-in
setp iocontrol.0.emc-enable-in true
linksp EstopOkOut estop-latch.0.ok-out
linksp EstopOkOut and2.0.in1
newsig emc-estop-out bit
linksp emc-estop-out iocontrol.0.user-enable-out
linksp emc-estop-out estop-latch.0.ok-in
newsig emc-estop-reset bit
linksp emc-estop-reset iocontrol.0.user-request-enable
linksp emc-estop-reset estop-latch.0.reset
As expected, this forced LCNC to wake up out of e-stop, but I could not
then go to active state; something else evidently needs to be set.
For now, I've got 2 regular questions and 1 meta-question:
1: Besides the digital IO input, what else can force LCNC into e-stop?
2: What else needs to be changed in the config files to force LCNC to
ignore the e-stop input from the digital IO?
3: Any other ideas?
Thanks in advance
lloyd
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