# OSSD safety sensor at Safeguard input

**URL:** <https://forum.universal-robots.com/t/ossd-safety-sensor-at-safeguard-input/6595>\
**Category:** Technical Questions\
**Tags:** electrical, safety-system\
**Created:** [March 7, 2020, 9:58am UTC](https://forum.universal-robots.com/t/ossd-safety-sensor-at-safeguard-input/6595 "2020-03-07T09:58:54Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![mbush](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.universal-robots.com/mbush/32/76_2.png) [@mbush](https://forum.universal-robots.com/u/mbush)\
**Post date:** [March 8, 2020, 9:47am UTC](https://forum.universal-robots.com/t/ossd-safety-sensor-at-safeguard-input/6595/2 "2020-03-08T09:47:59Z")

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What happened when you wired the outputs to SI0 and SI1? We’ve used OSSD before without issue so long as you power the device with the robot power source. Silly question but you removed the factory jumpers correct?

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