Wiring PWM / XDHP cable

Introduction

The MR-CANHUBK344 sends PWM signals to the Motor controller and also to the Servo. These are standard RC Model type PWM connections. In order to facilitate keeping the signals in the correct order they are routed and consolidated onto a single cable and small "XDHP" connector board. It is still quite important to get the XDHP connector positioned correctly on the PWM header of the MR-CANHUBK344

Technical note: The steering servo gets +5V power from the PDB

Thw PWM/XDHP wire connection should look like as depicted in the following picture:

Connection PDB XHDP connector to MR-CANHUBK344

PWM signals wiring to MR-CANHUBK344

The cable carrying PWM signals between the MR-CANHUBK344 board, and the Power Distribution Board should look like as shown in picture below. It is a seven wire interface which carries multiple PWM signals and has a VCC line and a ground.

XDHP Cable and small adapter board

There is a small "XDHP" adapter board to fit on the PWM pin-header of the MR-CANHUBK344 board. This is provided in the kit and show in the image above

XDHP Adapter board

Please be extra careful that the XDHP adapter board is connected and aligned correctly. Damage to the board could result from incorrect connection.

Connection from CANHUB to PDB using black PWM cable

XDHP connection on PDB side

The one end of the PWM cable is connected on the XHDP pins on the PDB:

The other end of the cables having the xHDP adapter on it is mounted on the first three columns(Three pairs of three pins) of PWM pins which represents PWM0, PWM1 and PWM2 positions of the MR-CANHUBK344 respectively:

XDHP (PWM) connection on MR-CANHUBK344 side

Installation of the XDHP adapter board and cable is most easily done when the cable and connector are conected together first. Then gently bend the wires at a 90 degree angle. Push the XDHP adapter onto the CANHUBK344 pin headers. The images show XHDP adapter is mounted on the first three columns (Three pairs of three pins) of PWM pins. This corresponds to PWM0, PWM1 and PWM2 positions of the MR-CANHUBK344 respectively.

The XDHP aligned toward the PWM header CLOSEST to the side of the board with the CAN connectors.