# X20SL8000 fail

**URL:** <https://community.br-automation.com/t/x20sl8000-fail/7171>\
**Category:** Controls & Vision\
**Tags:** integrated-safety\
**Created:** [June 3, 2025, 1:18pm UTC](https://community.br-automation.com/t/x20sl8000-fail/7171 "2025-06-03T13:18:53Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Kittibodee](https://avatars.discourse-cdn.com/v4/letter/k/FF8800/32.png) [@Kittibodee](https://community.br-automation.com/u/Kittibodee)\
**Post date:** [June 3, 2025, 1:18pm UTC](https://community.br-automation.com/t/x20sl8000-fail/7171/1 "2025-06-03T13:18:53Z")

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How can we slove this problem?Safety processor X20SL8000 has LED red light on letter “F”, “I” and “L” which are brightly than letter “A”

 ![Screenshot_20250603_201758](https://europe1.discourse-cdn.com/brcommunity/original/2X/2/22e06a8169cdea7dbac4d58949e68d5051f75c21.jpeg)

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**Author:** ![kovarj](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/kovarj/32/537_2.png) [@kovarj](https://community.br-automation.com/u/kovarj)\
**Post date:** [June 3, 2025, 1:46pm UTC](https://community.br-automation.com/t/x20sl8000-fail/7171/2 "2025-06-03T13:46:39Z")

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Unlisted on June 3, 2025, 1:46pm UTC



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**Author:** ![kovarj](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/kovarj/32/537_2.png) [@kovarj](https://community.br-automation.com/u/kovarj)\
**Post date:** [June 3, 2025, 4:59pm UTC](https://community.br-automation.com/t/x20sl8000-fail/7171/4 "2025-06-03T16:59:22Z")

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Listed on June 3, 2025, 4:59pm UTC



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**Author:** ![kovarj](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/kovarj/32/537_2.png) [@kovarj](https://community.br-automation.com/u/kovarj)\
**Post date:** [June 3, 2025, 5:05pm UTC](https://community.br-automation.com/t/x20sl8000-fail/7171/5 "2025-06-03T17:05:19Z")

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Here you have link to documentation [B&R Online Help](https://help.br-automation.com/#/en/4/hardware/x20sl80xx/status_leds_des_sicherheitsprozessors.html), so from LEDS you can identify state of safety controller.

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**Author:** ![Zwi](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/zwi/32/103_2.png) [@Zwi](https://community.br-automation.com/u/Zwi)\
**Post date:** [June 4, 2025, 5:42am UTC](https://community.br-automation.com/t/x20sl8000-fail/7171/6 "2025-06-04T05:42:36Z")

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You may need more information than only the state of the LEDs.  
I’d expect some useful information in the logger.

See also this post which might be helpful: [Troubleshooting Steps for Connecting to SL or SLX Safety Controllers](https://community.br-automation.com/t/troubleshooting-steps-for-connecting-to-sl-or-slx-safety-controllers/354/1)