Homing & limit switches - NC? NO?

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22 Jan 2024 20:14 #291366 by poesel
Homing & limit switches - NC? NO? was created by poesel
Hi,

how is the logic with the limit & homing switches? Normally open (NO), normally closed (NC)? Is this configurable?

Thanks

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22 Jan 2024 22:28 #291374 by PCW
Replied by PCW on topic Homing & limit switches - NC? NO?
You can use either NO or NC switched by changing the input polarity in hal

Note that NC switches are usually preferred for limit and home switches
since a broken switch wire will result in a fault rather than a mechanical crash.

( a stuck closed NC switch will cause a crash however as will a stuck open NO switch)
 
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