# Motor stopped spinning

**URL:** <https://discuss.px4.io/t/motor-stopped-spinning/35855>\
**Category:** PX4 Autopilot\
**Created:** [December 12, 2023, 1:01pm UTC](https://discuss.px4.io/t/motor-stopped-spinning/35855 "2023-12-12T13:01:18Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Dhruvil](https://discuss.px4.io/letter_avatar_proxy/v4/letter/d/839c29/32.png) [@Dhruvil](https://discuss.px4.io/u/Dhruvil)\
**Post date:** [December 12, 2023, 1:01pm UTC](https://discuss.px4.io/t/motor-stopped-spinning/35855/1 "2023-12-12T13:01:18Z")

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@JulianOes Pixhawk 6C, V1.14

Tilt Rotor

standard config:  
3 (FL) 1 (FR)  
2 (RL) 4 (RR)

The drone was on ground all the time, as we were checking the correct reaction from drone according to pilot command.

log file: [https://review.px4.io/plot\_app?log=582994c6-17cf-451b-9234-42a5acea119b](https://review.px4.io/plot_app?log=582994c6-17cf-451b-9234-42a5acea119b)

**as can be seen in log file, during 1:45 to 1:53 there is pitch command and at that point two motors i.e 2 and 4 stopped completely.**  
**Motor 4 stayed off even after removing pitch.**

The drone weights around 10 kg and 4 12s motors with 16 inch prop can produce 7.5 kg so there is enough room. The ESC calibration and other required calibrations were also performed before flight.

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**Author:** ![JulianOes](https://discuss.px4.io/user_avatar/discuss.px4.io/julianoes/32/30_2.png) [@JulianOes](https://discuss.px4.io/u/JulianOes)\
**Post date:** [December 13, 2023, 12:37am UTC](https://discuss.px4.io/t/motor-stopped-spinning/35855/2 "2023-12-13T00:37:52Z")

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So, at idle throttle, right after arming, are all props spinning at a minimum (but not zero) speed?

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**Author:** ![Dhruvil](https://discuss.px4.io/letter_avatar_proxy/v4/letter/d/839c29/32.png) [@Dhruvil](https://discuss.px4.io/u/Dhruvil)\
**Post date:** [December 13, 2023, 7:15am UTC](https://discuss.px4.io/t/motor-stopped-spinning/35855/3 "2023-12-13T07:15:42Z")

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No, at arming there are not turning with minimum speed. The min PWM values for motors were 1000, they did not turn. I increased the min PWM to 1100, still they were not turning.

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**Author:** ![Dhruvil](https://discuss.px4.io/letter_avatar_proxy/v4/letter/d/839c29/32.png) [@Dhruvil](https://discuss.px4.io/u/Dhruvil)\
**Post date:** [December 13, 2023, 7:36am UTC](https://discuss.px4.io/t/motor-stopped-spinning/35855/4 "2023-12-13T07:36:41Z")

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log: [https://review.px4.io/plot\_app?log=54d43c09-e4fc-4880-9937-05b351327d0d](https://review.px4.io/plot_app?log=54d43c09-e4fc-4880-9937-05b351327d0d)

I did testing again yesterday. I recalibrate the ESC. and tested everything. As you can see, the respected motors gets zero output and they stopped turning when i give pitch, roll or yaw.

PWM 1000-2000 and disarmed 800.

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**Author:** ![Dhruvil](https://discuss.px4.io/letter_avatar_proxy/v4/letter/d/839c29/32.png) [@Dhruvil](https://discuss.px4.io/u/Dhruvil)\
**Post date:** [December 16, 2023, 2:12pm UTC](https://discuss.px4.io/t/motor-stopped-spinning/35855/5 "2023-12-16T14:12:41Z")

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@JulianOes help would be amazing, as we are stagnated here. Not able to perform further flight test.

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**Author:** ![JulianOes](https://discuss.px4.io/user_avatar/discuss.px4.io/julianoes/32/30_2.png) [@JulianOes](https://discuss.px4.io/u/JulianOes)\
**Post date:** [December 16, 2023, 7:21pm UTC](https://discuss.px4.io/t/motor-stopped-spinning/35855/6 "2023-12-16T19:21:26Z")

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Have a look at this:

> **[PX4-Autopilot v1.14 Release Notes | PX4 User Guide (v1.14)](https://docs.px4.io/v1.14/en/releases/1.14.html#upgrade-guide)**
>
> PX4 is the Professional Autopilot. Developed by world-class developers from industry and academia, and supported by an active world wide community, it powers all kinds of vehicles from racing and cargo drones through to ground vehicles and...
