# How to Wire AS to IRC5? automatic stop.

**URL:** <https://tech-community.robotics.abb.com/t/how-to-wire-as-to-irc5-automatic-stop/10881>\
**Category:** IRC5\
**Created:** [September 23, 2022, 7:11am UTC](https://tech-community.robotics.abb.com/t/how-to-wire-as-to-irc5-automatic-stop/10881 "2022-09-23T07:11:36Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![HossamElaarag](https://avatars.discourse-cdn.com/v4/letter/h/858c86/32.png) [@HossamElaarag](https://tech-community.robotics.abb.com/u/HossamElaarag)\
**Post date:** [September 23, 2022, 7:11am UTC](https://tech-community.robotics.abb.com/t/how-to-wire-as-to-irc5-automatic-stop/10881/1 "2022-09-23T07:11:36Z")

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I would like to know how to wire AS to IRC5? As from (a door interlock or light curtains)

I know it is in connector X5 and it is in positions (12,7) and (6,1). But I am not sure how excatly should I wire them.

and can I only wire one chanel or I have to wire both chanel?

I also have a question, Can I use only safety relay or I should use safety relay plus a contactor?  
Thank you in adavnce

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**Author:** ![revans](https://avatars.discourse-cdn.com/v4/letter/r/f4b2a3/32.png) [@revans](https://tech-community.robotics.abb.com/u/revans)\
**Post date:** [April 12, 2023, 2:53pm UTC](https://tech-community.robotics.abb.com/t/how-to-wire-as-to-irc5-automatic-stop/10881/2 "2023-04-12T14:53:41Z")

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You must wire both channels, it is a dual channel safety. Most safety rated devices require dual channel. If it is something like a door interlock that utilizes a physical contact, then you may not need a safety relay at all. A safety relay is the way to go for hooking something like that up.