Integrating the 106-M304T Module with Mitsubishi Servo Brake Control
- The 106-M304T control module does not directly control brake functions; it only provides an interface to connect to the servo drive
106-M304T:
The brake signal is connected to terminal 10 (BRK+) on CN2/4 and CN3/5 of the 104-T304 module - To enable brake control, customers must configure servo drive parameters. Below is an example using Mitsubishi servo drives
106-M304T Mitsubishi J4 Servo Brake Control - Connection Diagram

104-T304 Mitsubishi J4 Servo Brake Control
- Module terminal board brake wiring

106-M304T Mitsubishi J4 servo brake control - Steps
- The brake terminal on the 104-T304-DUM terminal board is directly connected to the brake function terminal of the drive
Definition of brake connection points for servos from four different brands
Machine model | BRK+ | BRK- | |
(DB26-9) | (DB26-14) | ||
Corresponding pins on SCSI-50 | Delta A2 | 3 | 2 |
Mitsubishi J4 | 23 | N/A | |
Panasonic A5 | 11 | 10 | |
Yaskawa Sigma 5 | 27 | 28 |


- The brake signal is controlled by the Mitsubishi J4 drive. The drive does not have the brake function controlled by Servo ON by default. It needs to be manually configured
- The 106-M304T serves as a brake signal transmitter, and it receives the brake signal on SCSI-50 Pin 23. Please follow the steps below to configure it
Configuring 104-T304 with Mitsubishi J4 Servo Brake Control
- To enable the brake function to be released or locked in accordance with the Servo-ON/OFF, you must change the setting parameter PD24(DO2) at CN1-pin23 in the drive to MBR
- Once the modification is completed, you can use the drive’s Servo-ON/OFF to control the brake signal
MR-J4-_A Server Amplifier Instruction Manual, P.5-41
