Quote:
Originally Posted by bmammen
We were wondering if it’s an acceptable practice to have a second normally closed limit switch wired in line with a motor and sitting just a little longer in the throw, past the electrically monitored limit switch as a safety precaution?
The reason that I ask is that last season we had two instances where our software controlled limit switch either didn’t work or was physically knocked off center causing a very strong bag motor with planetary gearbox to bend and break our launching mechanism as it didn’t shutoff the motor at the end of the throw.
Any suggestions?
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FRC legality aside, a few technical questions:
What motor controller were you using?
About the software you were using to detect the switch state: Was this an interrupt service routine or a polled task? If polled, at what frequency?
About the software you were using to
react to the limit switch state: Was this an interrupt service routine or a polled task? If polled, at what frequency?
About the limit switch actuating lever: did you add a flexible extension to prevent permanent bending of the lever?
and finally:
What's the current rating on the limit switch you plan to put in the power line going to the motor?