Unable to Rotate AX-12A motor

[SONA324]

1. I'm using Arduino UNO with Dynamixelshield to control the motor.
2. Through Arduino I'm trying to run the example code pos_mode. After code got uploaded also motor is not moving.
3. I'm Using windows 11, Arduino 18.8
4. Which USB serial converter do you use?
   -with U2D2 I'm able to run the motor through Dynamixel wizard 2.0
5. Which DYNAMIXEL do you use?
   AX-12A
6. I've searched the issue but I didn't get any solution. code seems to be okay.
7. Please describe the issue in detail
   I want to control AX-12A motor through Arduino, for that I setup did like I'm using
   1. arduino with dynamixelshield
   2. 12V 1.5A Power adaptor
   3. AX-12A Servo
      after connecting all things I started to upload the code but after successfully upload also motor not moving. also I'm not getting
      any thing printing on serial monitor. for serial monitor reading i have connected ddynamixel shield serial (7,8) pins to another
      arduino UNO. After that also I'm not getting any reading.