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Product Lineup


Key Specifications

Model Dimensions(mm) Weight Resolution Motor
H54P-200-S500-R 54 x 126 x 54 855g 1,003,846 BLDC (Maxon)
H54P-100-S500-R 54 x 108 x 54 740g 1,003,846 BLDC (Maxon)
H42P-020-S300-R 42 x 84 x 42 340g 607,500 Coreless (Maxon)

Communication Circuitry

Connection to UART

To control Dynamixel pro with a personally made Main Controller, the signal of Main Controller UART should be converted into RS485 type signal. The following is a recommended circuit diagram.

MAX485 Datasheet

The power of Dynamixel is supplied via Pin1(-), Pin2(+). (The above circuit is built into Dynamixel-only controller)

In the above circuit diagram, the direction of data signal of TxD and RxD in the TTL Level is determined according to the level of DIRECTION 485 as follows:

Pin Arrangement

Connector pin arrangement is shown below. Dynamixel PRO has two 4-pin connectors arranged in pin-2-pin configuration. In this arrangement it does not matter the order of connection and Dynamixel PRO can be driven like the MX-series. Additionally there is a 2-pin connector dedicated for power input for high-current operations.

WARNING : When wiring please pay attention to the wire arrangement. Incorrectly connected Dynamixel may be damaged severely.

Confirmation of Connection

The LED of Dynamixel pro flickers once if the power is supplied to Dynamixel pro properly via wiring.


The output horn has been redesigned. Please refer to below comparisons between PRO and PRO+.

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