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Safety Questions

Question Asked:

I am finding nothing to solve my issue on any site or publication, maybe you can help. I have a screw running on a stepper motor and am trying to determine the distance for the Light Curtain or does it matter when using a Stepper motor as the stop is instantaneous? There is no 90 deg stop time like on a cam run machine or gear driven. I am writing up a Guarding program for my company and want to include this information. Any ideas?

1 Answers

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Lee Burk - Manager, Training & Standards
Pilz Automation Safety L.P.
l [dot] burk [at] pilzusa.com
(734) 354-0272

The safety distance will depend on the overall response time of the sensing device and control system including any communication delays for remote I/O as well as the mechanical stopping time of your screw, however small that may be.

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