# The panel does not indicate the hard limit protection when the Z axis reaches the hard limit switch

**URL:** https://forum.cloudray.com/t/the-panel-does-not-indicate-the-hard-limit-protection-when-the-z-axis-reaches-the-hard-limit-switch/144
**Category:** FAQ
**Created:** [March 23, 2021, 5:26am UTC](https://forum.cloudray.com/t/the-panel-does-not-indicate-the-hard-limit-protection-when-the-z-axis-reaches-the-hard-limit-switch/144 "2021-03-23T05:26:45Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Technician](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.cloudray.com/technician/32/15_2.png) [@Technician](https://forum.cloudray.com/u/Technician)
#### Post date: [March 23, 2021, 5:26am UTC](https://forum.cloudray.com/t/the-panel-does-not-indicate-the-hard-limit-protection-when-the-z-axis-reaches-the-hard-limit-switch/144/1 "2021-03-23T05:26:46Z")

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1.Possible cause analysis of failure:  
In the manufacturer parameter,the maximum speed should be grater than the take-off speed.

2.Solution:reset the parameter.