Contents

SAFETY PRECAUTIONS
DISPOSAL OF WASTE
EEP-ROM LIFE
STO FUNCTION OF THE SERVO AMPLIFIER
COMPLIANCE WITH GLOBAL STANDARDS
ABOUT THE MANUAL
U.S. CUSTOMARY UNITS
CONTENTS
1 FUNCTIONS AND CONFIGURATION
- 1.1 For proper use of the I/O mode
- 1.2 I/O mode specification list
- 1.3 Function list
- 1.4 Configuration including peripheral equipment
2 POINT TABLE OPERATION
- 2.1 Link device
  - Profile
  - Detailed explanation of the RYn/RXn profile
  - Detailed explanation of the RWwn/RWrn profile
  - Code
  - Data communication timing chart
  - Remote register-based position/speed setting
- 2.2 Switching power on for the first time
- 2.3 Automatic operation mode
  - Command method
  - Automatic operation using point table
- 2.4 Manual operation mode
  - JOG operation
- 2.5 Home position return mode
  - Outline of home position return
  - Method -5 (Home position ignorance (Servo-on position as home position))
  - Automatic positioning to home position function
- 2.6 Point table setting method
  - Setting procedure
  - Detailed setting window
  - Single-step feed
- 2.7 Application of the point table function
  - Infinite feed function (setting degree)
  - Roll feed display function
  - Backlash compensation
- 2.8 Programming example by function
  - System configuration example
  - Reading the servo amplifier status
  - Writing an operation command
  - Reading data
  - Writing data
  - Operation
- 2.9 Program example for continuous operation
3 PARAMETERS
- 3.1 Parameter list
  - Basic setting parameters ([Pr. PA_ _ ])
  - Gain/filter setting parameters ([Pr. PB_ _ ])
  - Extension setting parameters ([Pr. PC_ _ ])
  - I/O setting parameters ([Pr. PD_ _ ])
  - Extension setting 2 parameters ([Pr. PE_ _ ])
  - Extension setting 3 parameters ([Pr. PF_ _ ])
  - Linear servo motor/DD motor setting parameters ([Pr. PL_ _ ])
  - Positioning control parameters ([Pr. PT_ _ ])
  - Network setting parameters ([Pr. PN_ _])
- 3.2 Detailed list of parameters
  - Basic setting parameters ([Pr. PA_ _ ])
  - Extension setting parameters ([Pr. PC_ _ ])
  - I/O setting parameters ([Pr. PD_ _ ])
  - Positioning control parameters ([Pr. PT_ _ ])
  - Network setting parameters ([Pr. PN_ _])
- 3.3 How to set the electronic gear
  - Electronic gear settings in the point table method
  - Electronic gear setting in the indexer method
- 3.4 Stop method at stroke limit detection
- 3.5 Stop method at software limit detection
4 TROUBLESHOOTING
- 4.1 Explanation for the lists
- 4.2 Alarm list
- 4.3 Warning list
- 4.4 Troubleshooting at power on
5 INDEXER OPERATION
- 5.1 Link device
  - Profile
  - Detailed explanation of the RYn/RXn profile
  - Detailed explanation of the RWwn/RWrn profile
  - Code
  - Data communication timing chart
  - Remote register-based position/speed setting
- 5.2 Switching power on for the first time
- 5.3 Automatic operation mode
  - Automatic operation mode
  - Rotation direction specifying indexer
  - Shortest rotating indexer operation
- 5.4 Manual operation mode
  - Station JOG operation
  - JOG operation
- 5.5 Home position return mode
  - Outline of home position return
  - Torque limit changing dog type home position return (front end detection, Z-phase reference)
  - Torque limit changing dog type home position return (rear end detection, Z-phase reference)
  - Torque limit changing data set type
  - Homing method 35, 37 (Homing on current position)
- 5.6 Application of indexer function
  - Backlash compensation
6 SPEED CONTROL OPERATION
- 6.1 Link device
  - Profile
  - Detailed explanation of the RYn/RXn profile
  - Detailed explanation of the RWwn/RWrn profile
  - Code
  - Data communication timing chart
- 6.2 Switching power on for the first time
- 6.3 Speed control mode (point table method)
  - Operating method which does not use the speed command execution demand
  - Operating method which uses the speed command execution demand
7 APPLICATION OF FUNCTIONS
- 7.1 Simple cam function
  - Outline of simple cam function
  - Simple cam function block
  - Simple cam specification list
  - Control of simple cam function
  - Operation in combination with the simple cam
  - Setting list
  - Data to be used with simple cam function
  - Function block diagram for displaying state of simple cam control
  - Operation
  - Cam No. setting method
  - Stop operation of cam control
  - Restart operation of cam control
  - Cam axis position at cam control switching
  - Clutch
  - Cam position compensation target position
  - Cam position compensation time constant
  - Backup restore function
- 7.2 Override
  - Analog override
  - Digital override
- 7.3 Internal torque limit selection
  - Device/parameter
  - Details of internal torque limit selection
REVISIONS
WARRANTY
TRADEMARKS

Mitsubishi MR-J4-GF Instruction Manual

Mitsubishi MR-J4-GF Servo Amplifier manual cover

Pages 306

Year 2020

Language(s)

of 306

Mitsubishi MR-J4-GF Servo Amplifier Specification

The Mitsubishi MR-J4-GF Servo Amplifier is a high-performance drive solution designed to enhance precision and efficiency in industrial automation applications. This servo amplifier is part of the MR-J4 series, renowned for its advanced features and robust performance. It supports a wide range of motors and offers seamless integration with various control systems. The MR-J4-GF model is particularly notable for its compatibility with SSCNET III/H, enabling high-speed and high-precision serial communication for real-time control.

With a power range that accommodates various applications, the MR-J4-GF ensures optimal motor performance through its advanced tuning functions, such as the one-touch auto-tuning and vibration suppression features. The amplifier is equipped with a built-in absolute position encoder, offering a resolution of over 4 million pulses per revolution, which significantly enhances positioning accuracy.

Safety and reliability are prioritized through integrated safety functions, including Safe Torque Off (STO), which complies with international safety standards. The servo amplifier also features a compact design, reducing space requirements in control panels and facilitating easier installation and maintenance.

Additionally, the MR-J4-GF offers advanced diagnostics and monitoring capabilities, accessible through its user-friendly interface. This allows for real-time monitoring of system status and quick troubleshooting, thereby minimizing downtime. Its energy-saving features, such as regenerative energy management, further contribute to reduced operational costs.

Overall, the Mitsubishi MR-J4-GF Servo Amplifier stands out for its precision, flexibility, and efficiency, making it an ideal choice for a wide array of demanding industrial applications.

Mitsubishi MR-J4-GF Servo Amplifier F.A.Q.

How do I connect the MR-J4-GF Servo Amplifier to a PLC?

To connect the MR-J4-GF Servo Amplifier to a PLC, use the appropriate communication cables and ensure that the amplifier's communication settings match those of the PLC. Reference the user manual for specific configuration settings.

What are the steps for initial setup and configuration of the MR-J4-GF Servo Amplifier?

Initial setup involves mounting the amplifier, connecting power and motor cables, setting the necessary parameters through the MR Configurator2 software, and performing a test run to verify operation.

What should I do if the MR-J4-GF Servo Amplifier is not powering on?

Check for correct power supply voltage, inspect for blown fuses, ensure all connections are secure, and verify that the emergency stop is not engaged.

How can I troubleshoot an alarm or fault code on the MR-J4-GF Servo Amplifier?

Refer to the alarm code list in the manual, which provides detailed descriptions and corrective actions for each code. Use the MR Configurator2 software to diagnose issues.

What maintenance is required for the MR-J4-GF Servo Amplifier?

Regular maintenance includes checking for dust accumulation, ensuring ventilation is unobstructed, inspecting electrical connections, and verifying proper operation periodically.

How can I update the firmware of the MR-J4-GF Servo Amplifier?

Download the latest firmware from the Mitsubishi Electric website and use the MR Configurator2 software to perform the update, following the provided instructions carefully.

Can the MR-J4-GF Servo Amplifier be used with third-party motors?

While it is optimized for Mitsubishi motors, the amplifier can work with third-party motors if the motor's specifications are compatible. Consult the manual and perform a test to ensure proper operation.

What is the procedure for replacing a faulty MR-J4-GF Servo Amplifier?

Power down the system, disconnect all cables, remove the amplifier from its mounting, and install the new unit. Reconnect cables and configure the new amplifier using the previous settings.

How can I optimize the performance of the MR-J4-GF Servo Amplifier?

Optimize performance by tuning parameters using the MR Configurator2 software, adjusting gain settings, and ensuring the mechanical setup is free from misalignments or obstructions.

What safety precautions should be followed when working with the MR-J4-GF Servo Amplifier?

Always follow lockout/tagout procedures, wear appropriate personal protective equipment, and ensure the system is powered down before performing maintenance or adjustments.