I'm installing a used robot and planning on controlling it from a hardwired PLC. Since the IMSTP, SFSPD, and Enable signals all turn on and off together; is it bad practice to use a single PLC output to control all three and jumper them together at the robot input card?
Can IMSTP, SFSPD, and Enable be tied together?
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TitusLepic -
April 8, 2021 at 4:41 PM -
Thread is Unresolved
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That's how I would do it. In my mind it is separate from your safety signals so doesn't really matter.
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Sometimes I do it, it works without any problems. But mind that there are differences in robot's behaviour according to those signals. If it's not a problem for you, feel free.
Do you have a modular (physical ) I/O? Configure it as the same signal (rack ,slot, start = the same for all of them) and then you save two more ins for other purpose. Sometime I also do it even with Profibus, Profinet, DvNet, etc., because I'm lazy
When needed I also "cross" 4 signals: IMSTP, Hold, SFSPD, Enable - they also could work together.