Motor to esc connection

Hardware Multirotors
1

Hello everybody,

I have encountered a weird behavior during the motor to ESC connection.

I have carried out ESC calibration using a motor and it spins properly, then I have tried another motor with the same calibrated ESC but this motor does not spin properly and it starts heating, so I have decided to swap any two cables and the motor starts spinning as expected.

This image shows exactly the procedure I have followed, first configuration does not work but swapping cables solve the issue.

esc-wiring
esc-wiring785×277 19.1 KB

Any of you can give advice on this issue? I did not expect such behavior, I thought the second motor should work despite the order cables.

Motor used: T-motor MN501-S KV240
Esc used: T - motor AIR 40A

Also when I tight motor to rigid support it seems like it tights itself and the spinning part becomes harder to rotate, is it normal?

Any advice is appreciated best regards.

2

Check for mounting screws protruding too far into the motor and shorting a winding