# Press Z- or Z+for a long time(about 3~4s),the Z axis will always go down/up;Press the short time is noraml

**URL:** <https://forum.cloudray.com/t/press-z-or-z-for-a-long-time-about-3-4s-the-z-axis-will-always-go-down-up-press-the-short-time-is-noraml/179>\
**Category:** FAQ\
**Created:** [April 1, 2021, 3:29am UTC](https://forum.cloudray.com/t/press-z-or-z-for-a-long-time-about-3-4s-the-z-axis-will-always-go-down-up-press-the-short-time-is-noraml/179 "2021-04-01T03:29:37Z")\
**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:** [April 1, 2021, 3:29am UTC](https://forum.cloudray.com/t/press-z-or-z-for-a-long-time-about-3-4s-the-z-axis-will-always-go-down-up-press-the-short-time-is-noraml/179/1 "2021-04-01T03:29:37Z")

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1.Possible cause analysis of failure:Reaction delay,see if the Z axis parameters are correct.  
2.Solution:In the manufacturer’s settings,check the Z axis parameters,mainly the maximum speed,take-off speed,accleration,and emergency stop acceleration is not adjusted.Reset these parameters.

 ![1](https://us1.discourse-cdn.com/flex020/uploads/cloudray/original/1X/d87dbfc5a1a4f22c2b829816f3c4e369c42f411c.jpeg)