Introduction

Combined with U2D2, it can supply various kinds of external power supply to supply stable power to DYNAMIXEL.

Specifications

Item	Details
Operating Voltage	3.5V ~ 24.0V
Maximum Current	10.0A

danger

DANGER
(Ignoring these warnings may cause serious injury or death)

• Never place items containing water, flammables/open flames, or solvents near the product.
• Never place fingers, arms, toes, and other body parts near product during operation.
• Cease operation and remove power from the product if the product begins to emit strange odors, noises, or smoke.
• Keep product out of reach of children.
• Check input polarity before installing or energizing wiring or cables.

warning

CAUTION
(Ignoring these warnings may cause mild injury or damage to the product)

• Do not insert blades or other sharp objects during product operation.

warning

ATTENTION
(Ignoring these warnings may cause minor injury or damage to the product)

• Do not disassemble or modify the product.
• Do not drop the product or apply strong impacts.
• Do not connect or disconnect DYNAMIXEL cables while power is being supplied.

Layout

Description

1. DYNAMIXEL Connectors: 3 and 4-pins JST connectors are installed for communication. See Connector Information for more details.

2. TTL/RS485 Test Points: TTL data line, RS485 D +, D-line signals can be easily identified via the test points

3. Power Connectors: U2D2 PHB provides three different types of power connectors to supply a diverse voltage and current to DYNAMIXEL.

   • SMPS DC Connector (2.5mm ID / 5.5mm OD, Center Positive)
   • MOLEX Power connector (See Connector Information for more details)
   • PCB Screw Terminal Block Connector
     • Left: -
     • Right: +

warning

CAUTION:

• Be sure to check the polarity of the terminal block connector when using an external power supply, to enhance the user safety.
• Some pins stick out on the bottom of the board, which are prone to touch the floor. To prevent from touching a floor, assemble the board with the supplied supporters following How to Assemble instruction.

How to Assemble

1. Assemble four(4) plastic supporters at each corner of the U2D2 Power Hub Board as shown below.

   

2. Use plastic rivets to mount U2D2 on the U2D2 Power Hub Board.

   

3. Connect U2D2 and U2D2 Power Hub Board with 3P or 4P cables (Both 3P and 4P cables can be connected at the same time).

   

4. Connect additional cables that will connect U2D2 and DYNAMIXEL (Depending on DYNAMIXEL model, converting cables may be required).

   

5. Connect the other side of the cable to DYNAMIXEL (Depending on DYNAMIXEL model, converting cables may be required).

   

6. Connect power to U2D2 Power Hub Board.

danger

DANGER : Do NOT use multiple power inputs at the same time. Select ONLY one of the power source to connect.

warning

WARNING : Check the Recommended Voltage for DYNAMIXEL before supplying the power.

7. Turn the power switch on U2D2 Power Hub Board to supply power to DYNAMIXEL

   

Connector Information

Item	TTL	RS-485	Power
Pinout	1 GND 2 VDD 3 DATA	1 GND 2 VDD 3 DATA+ 4 DATA-	1 GND 2 VDD
Diagram
Housing	JST EHR-03	JST EHR-04	MOLEX 39-01-2020
PCB Header	JST B3B-EH-A	JST B4B-EH-A	MOLEX 39-28-1023
Crimp Terminal	JST SEH-001T-P0.6	JST SEH-001T-P0.6	MOLEX 39-00-0038
Wire Gauge for DYNAMIXEL	21 AWG	21 AWG	20 AWG