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Unread 20-02-2012, 17:19
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Re: Runaway CIM motors

Quote:
Originally Posted by Al Skierkiewicz View Post
Did a limit switch jumper on the Jaguar fall out? It is possible that the Jag is trying to get back from a limit condition.
I've never used a Jaguar with limit switches, but I'm confused how this could happen. The switches are supposed to be wired normally-closed, so if a jumper came out the Jaguar would act as if the switch had been pressed. The Jaguar datasheet specifically says that the motor stops when a switch is pressed. Am I missing something?

Quote:
Originally Posted by Jaguar datasheet
Two limit switch inputs provide a method for immediate shut-down of the motor. The inputs expect typically-closed contacts - one for each direction of rotation.
http://www.ti.com/litv/pdf/spmu064c
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