Propeller's motors not working_Holybro X500_Pixhawk4

PX4 Autopilot
1

Hi,
I bought a Holybro X500 kit with Pixhawk4. I assembled all according to the guide https://docs.px4.io/master/en/config/, but the motors do not work. I tested the motors with direct wiring with Radiolink receiver R9DS and they properly run, but when I connect the ESC input to the board PM07 there are not responses.
I verified that all the wire connection are correct, I connected Radiolink R9DS to Pixhawk4 in S.BUS mode.
Moreover also in QGC there are a couple of inconsistencies:

  1. When try to run the motor test nothing happens, there are no error messages but still the motor not work;
  2. When the Holybro is armed the QGC reports flying even if the motors are not working.

Thank you for helping.

2

hello can you send picture of the installation…did you connect the esc signal wire at aux or at the power board esc signal point ???
Picture of the wiring connection for esc to pixhawk power board

3
  1. When try to run the motor test nothing happens, there are no error messages but still the motor not work;
    1.1 This because you connect the esc signal wire at wrong point
  2. When the Holybro is armed the QGC reports flying even if the motors are not working.
    2.2 It report flying because its armed but your esc signal wire is at wrong terminal

Send the picture of your esc signal wire connection…

Thank you for helping.

4

I connected according to the picture belove that is reported on the guide Redirecting to latest version of document (main).

image
image967×729 190 KB

I tried to connect the ESC signal (yellow wire) to the 4 I/O PWM OUTS, as in the picture below, and the motors work. Is it necessary to connect also the ground of the ESC to the PM07 board?

image
image1600×1200 385 KB

Thank you for the answer.

5

hello please connect the esc signal yellow color wire at the M1/M2/M3/M4 please refer to the picture attached

PM07
PM07803×640 651 KB

6

Hello once you connect it as the picture the motor will work 100%

7

X500 连线图
X500 连线图3243×1273 727 KB

I biught the same kit from Holybro, screwed up connection of ESC to power PM07, then contacted Holybro and got this enclosed image. This will help you.

Bindu Rao

8

I don’t think that is necessary,
Bindu

9

Can yours arm the motor without doing any extra setting???..what is the diffirent of connecting at PM07 cable to I/O PWM input terminal to pixhawk 4 I/O output terminal than connect the esc signal wire to PM07 I/O output terminal …it looks like you are new kids here !!! :joy:

10

Thanks to all for the help

11

hello did u get the motor spin and which way method u use??

12

hi
got exact same problem Changed ESC and everything got fine. I think there’s manufacture troubles on some ESC

13

Hi,
the motors work using either method.