Can not perform motor test!

Hi all
I’m using Pixhawk 6C, PM07 PDB, and little bee cloudphoenix 50A esc blheli32. arduplane frame
I set SERVO5_FUNCTION to motor2 , I also tried with like SERVO11 later.
i’m using PWM breakout connectors
I’m not using radio and receiver yet, just trying to test the motor in mission planner. When I try to force arm I get “mav_cmd_component_arm_disarm failed”.
Tried to set ARMING_CHECK to 0 , ARMING_REQUIRE to Disabled, but nothing changed.
When I plug in the battery the motor gives the only first part of the tune and not the second.
I’m I missing any other parameters !!
the motor test page looks like this

here is my parameters
param1.param (18.3 KB)

any advice plz

I changed to copter and everything works fine, motor test fine. Dont know what’s wrong with plane !

Nothing. That function is not active in Plane.

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