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General Mach Discussion / Re: Weird behaviour on limit switches
« on: February 16, 2018, 10:38:14 PM »
Hi,
No. Commonly a limit event will Estop Mach. Even if you remove the offending limit signal Mach will still have to be reset manually. If you don't have "Overide Limits'
then you will not be able to jog off the limit switch.
I suspect this is a result of Mach being disabled. The sequence of events is that the limit switch triggers and Mach disables. Your description suggests to me that Mach
is not responding to new inputs until it has been re-enabled.
Craig
Quote
Removing the signal from the input is not enough to be able to reset the system?
No. Commonly a limit event will Estop Mach. Even if you remove the offending limit signal Mach will still have to be reset manually. If you don't have "Overide Limits'
then you will not be able to jog off the limit switch.
Quote
If I power down the limit switch circuit, the X++ and X-- lights still stay lit, even though the ESS input has returned to a high level and there is no longer a limit input.
I suspect this is a result of Mach being disabled. The sequence of events is that the limit switch triggers and Mach disables. Your description suggests to me that Mach
is not responding to new inputs until it has been re-enabled.
Craig