Contents

Safety Instructions
DISPOSAL OF WASTE
STO function of the servo amplifier
Compliance with global standards
About the manual
Cables used for wiring
CONTENTS
1. FUNCTIONS AND CONFIGURATION
- 1.1 Summary
- 1.2 Function block diagram
- 1.3 Standard specifications
- 1.4 Combinations of servo amplifiers and servo motors
- 1.5 Combinations of converter units, drive units and servo motors
- 1.6 Function list
- 1.7 Model designation
2. SIGNALS AND WIRING
- 2.1 Input power supply circuit
- 2.2 I/O signal connection example
  - 2.2.1 For sink I/O interface
  - 2.2.2 For source I/O interface
- 2.3 Connectors and pin assignment
- 2.4 Signal (device) explanations
  - 2.4.1 Input device
  - 2.4.2 Output device
  - 2.4.3 Input signal
  - 2.4.4 Output signal
  - 2.4.5 Power supply
- 2.5 Interfaces
  - 2.5.1 Internal connection diagram
  - 2.5.2 Detailed explanation of interfaces
  - 2.5.3 Source I/O interfaces
3. PARAMETERS
- 3.1 Parameter list
  - 3.1.1 Basic setting parameters ([Pr. PA_ _ ])
  - 3.1.2 Gain/filter setting parameters ([Pr. PB_ _ ])
  - 3.1.3 Extension setting parameters ([Pr. PC_ _ ])
  - 3.1.4 I/O setting parameters ([Pr. PD_ _ ])
  - 3.1.5 Extension setting 2 parameters ([Pr. PE_ _ ])
  - 3.1.6 Extension setting 3 parameters ([Pr. PF_ _ ])
  - 3.1.7 Linear servo motor/DD motor setting parameters ([Pr. PL_ _ ])
  - 3.1.8 Pressure control parameters ([Pr. PT_ _ ])
- 3.2 Detailed list of parameters
  - 3.2.1 Basic setting parameters ([Pr. PA_ _ ])
  - 3.2.2 Gain/filter setting parameters ([Pr. PB_ _ ])
  - 3.2.3 Extension setting parameters ([Pr. PC_ _ ])
  - 3.2.4 I/O setting parameters ([Pr. PD_ _ ])
  - 3.2.5 Extension setting 2 parameters ([Pr. PE_ _ ])
  - 3.2.6 Extension setting 3 parameters ([Pr. PF_ _ ])
  - 3.2.7 Linear servo motor/DD motor setting parameters ([Pr. PL_ _ ])
  - 3.2.8 Pressure control parameters ([Pr. PT_ _ ])
4. PRESSURE LOOP GAIN ADJUSTMENT
- 4.1 Summary
- 4.2 Pressure control adjustment flowchart
- 4.3 Setting of pressure control system
- 4.4 Setting of pressure feedback
- 4.5 Adjustment of pressure loop gain
- 4.6 Checking of adjustment result
5. TROUBLESHOOTING
- 5.1 Explanations of the lists
- 5.2 Alarm list
- 5.3 Warning list
- 5.4 Remedies for alarms
- 5.5 Remedies for warnings
6. OPTIONS AND PERIPHERAL EQUIPMENT
- 6.1 MR Configurator2
  - 6.1.1 Specifications
APPENDIX
- App. 1 Optional data monitor function
REVISIONS
Country/Region
Warranty

Mitsubishi Electric MRJ4BLL Instruction Manual

Mitsubishi Electric MRJ4BLL manual cover

Pages 86

Year 2016

Language(s)

of 86

Mitsubishi Electric MRJ4BLL Specification

The Mitsubishi Electric MRJ4BLL is a compact and advanced servo amplifier designed for precise motion control in automation systems. It is characterized by its high-performance capabilities and efficient energy use, making it suitable for a wide range of industrial applications. The MRJ4BLL features a high-speed, high-precision servo control with a frequency response of 2 kHz, which enhances machine performance by enabling rapid and accurate movements. This servo amplifier supports a power supply range of 200-240V AC and is compatible with various motor types, including rotary and linear servo motors, providing flexibility in system design.

The MRJ4BLL incorporates advanced algorithms for vibration suppression and autotuning, which help to mitigate machine resonance and simplify setup, ensuring smooth operation even in complex environments. It boasts a built-in positioning function, which eliminates the need for an external positioning module and reduces overall system costs. The amplifier is equipped with safety features such as Safe Torque Off (STO), ensuring compliance with international safety standards.

Connectivity and integration are facilitated by its support for multiple communication protocols, including Ethernet/IP, CC-Link IE Field, and SSCNET III/H, allowing seamless integration into existing networks. The compact design of the MRJ4BLL allows for space-saving installations in control panels. Additionally, its energy-saving functions, such as regenerative braking and power consumption monitoring, contribute to lower operational costs.

The MRJ4BLL's user-friendly interface, combined with Mitsubishi Electric's MR Configurator2 software, simplifies parameter setting and monitoring, providing a versatile and efficient solution for modern automation requirements. Its robust construction and reliable performance make it an ideal choice for industries seeking enhanced productivity and precision.

Mitsubishi Electric MRJ4BLL F.A.Q.

How do I initialize the Mitsubishi Electric MRJ4BLL servo drive?

To initialize the MRJ4BLL servo drive, ensure that all connections are secure, apply power to the system, and use the Mitsubishi Electric software to perform an initial setup. Follow the manufacturer's manual for detailed steps on parameter configuration.

What is the procedure to troubleshoot an overcurrent alarm on the MRJ4BLL?

To troubleshoot an overcurrent alarm, check for mechanical binding in the system, verify motor and encoder connections, and ensure that the motor parameters are set correctly in the drive's configuration. Inspect the load conditions and reduce if necessary.

How can I perform regular maintenance on the MRJ4BLL servo drive?

Regular maintenance should include checking for loose connections, inspecting for signs of wear or damage, cleaning the unit to prevent dust accumulation, and verifying that the cooling system is operational. Follow the maintenance schedule provided in the manual.

What steps should be taken if the MRJ4BLL is not communicating with the controller?

Check the communication cables and ensure they are connected properly. Verify the communication settings in the drive and controller match, such as baud rate and protocol. Test the ports with a known good device to isolate the issue.

How do I update the firmware on the MRJ4BLL servo drive?

To update the firmware, download the latest firmware version from the Mitsubishi Electric website. Connect the drive to a computer using the recommended interface, and use the Mitsubishi Electric configuration software to upload the new firmware.

What could cause the MRJ4BLL to experience excessive vibration during operation?

Excessive vibration can be caused by misalignment of the motor, imbalance in the load, or worn bearings. Check and correct alignment, balance the load, and inspect bearings for wear. Additionally, verify that the drive's tuning parameters are correctly configured.

How can I optimize the performance of the MRJ4BLL servo drive for energy efficiency?

Optimize performance by ensuring the drive is properly tuned, reducing unnecessary loads, and using energy-saving modes provided by the drive. Keep the drive and motor well-maintained to prevent energy losses due to friction or other inefficiencies.

What should I do if the MRJ4BLL drive's temperature exceeds the recommended limits?

If the temperature exceeds recommended limits, check the cooling system for blockages or failures. Ensure the ambient temperature is within the specified range and that the drive is not overloaded. Consider installing additional cooling if necessary.

How do I reset the MRJ4BLL servo drive to factory settings?

To reset the drive to factory settings, access the parameter settings through the Mitsubishi Electric software or front panel, and choose the reset option. Be aware that this will erase all custom configurations and should be done with caution.

What are the recommended storage conditions for the MRJ4BLL when not in use?

When storing the MRJ4BLL, keep it in a clean, dry environment with a stable temperature. Avoid exposure to direct sunlight, high humidity, or corrosive substances. Store in original packaging if possible to protect from dust and physical damage.