ROBOTIS Dynamixel MX-28T
3 Pin TTL Servo Robot Actuator

Overview:

The MX-28T Dynamixel Robot Servo Actuator is the newest generation of Robotis Dynamixel actuator; equipped with an onboard 32bit 72mhz Cortex M3, a contact-less magnetic encoder with 4x the resolution over the AX/RX series, and up to 3mpbs using the new TTL 2.0 bus. Each servo has the ability to track its speed, temperature, shaft position, voltage, and load. As if this weren't enough, the newly implemented PID control algorithm used to maintain shaft position can be adjusted individually for each servo, allowing you to control the speed and strength of the motor's response. All MX Series servos use 12v nominal voltage, so AX & MX Dynamixels can be mixed without having to worry about separate power supplies. All of the sensor management and position control is handled by the servo's built-in microcontroller. This distributed approach leaves your main controller free to perform other functions.

Dynamixel is a robot exclusive smart actuator with fully integrated DC Motor + Reduction Gearhead + Controller + Driver + Network in one DC servo module.

• Advanced durability, degree of precision, and wider control zone were achieved thanks to the newly applied contactless absolute encoder
• 360 degrees position control without dead zone
• 4,096 precise resolution by 0.088 degrees
• Speed control at endless turn mode
• Reliability and accuracy were advanced in the position control through PID control
• High baud rate up to 4.5Mbps

The MX-series is a new type of DYNAMIXEL with numerous advanced functions, such as precise speed control, 360 degrees of accurate positioning, PID control, and high speed communication.

Precise speed is controlled through serial data and has a resolution of 10 bits to accurately adjust the high speed movements into 1023 increments of speed control.

Actuator status, commands, and sensor information are easily provided through readable memory and made available as a serial bit stream through TTL communication with a baud rate of up to 4.5 Mbps (4,500,000 bits per second).

Flexible Construction And Modular Structures

Package Components

• MX-28R
• HN07-N101
• Thrust Washer (for horn)
• 3P Cable 200mm
• 16 x Wrench Bolt WB M2.5x6
• 1 x Wrench Bolt WB M2.5x8
• 10 x Wrench Bolt WB M2x3
• 18 x Nut M2.5

Compatible Products

• Controller: CM-5, CM-510, CM530, CM-700, OpenCM9.04(+ OpenCM485 Expansion Board), OpenCR
• Interface: USB2Dynamixel, U2D2

Factory Default Settings

• ID: 1
• Baud Rate: 57600bps

(User can change various settings including ID and baud rate according to environment)