Mitsubishi MR-J4W2-77B AC Servo Drive – Reliable Power for Multi-Axis Control

• Manufacturer: Mitsubishi Electric – a trusted name in industrial automation.
• Model & Series: MR-J4W2-77B | MELSERVO MR-J4 family.
• Power output: 750W (0.75kW) suitable for multi-axis systems and compact machines.
• Supply flexibility: accepts single-phase (2P) or three-phase (3P) 200-240 VAC input.
• Rated current: 5.8A output current with 7.5A input current consumption.
• Auxiliary power consumption: only 55W for drive auxiliary components.

Technical Specifications – MR-J4W2-77B AC Servo Drive

• Brand: Mitsubishi Electric
• Product Model: MR-J4W2-77B
• Product Line: MELSERVO MR-J4 series
• Main Function: AC Servo Drive
• Rated Active Power: 750W / 0.75kW
• Rated Current: 5.8A
• Supply Voltage: 200–240 VAC
• Network Type: Single-phase input (2P) or three-phase input (3P)
• Current Consumption: 7.5A input
• Power Consumption (Auxiliary): 55W
• Degree of Protection: IP20
• Operating Temperature: 0 to 55°C
• Storage Temperature: -20 to 65°C
• Weight: 2.72 kg (6.00 lbs)

Frequently Asked Questions (FAQ)

• Q: Can MR-J4W2-77B run on single-phase power only?
  A: Yes, it accepts both single-phase (2P) and three-phase (3P) 200-240 VAC input. Select the appropriate wiring configuration during installation.
• Q: What motors pair with MR-J4W2-77B?
  A: It works with Mitsubishi MELSERVO MR-J4 series servo motors rated for 750W. Compatible motor series include HG-KR and HG-SR.
• Q: Is the drive suitable for outdoor use?
  A: No, the IP20 rating indicates indoor use only. Install inside a protective cabinet for dusty or wet environments.
• Q: What is the ambient temperature limit for operation?
  A: Operate between 0°C and 55°C (32°F to 131°F). Store between -20°C and 65°C (-4°F to 149°F).
• Q: How much power does the drive consume?
  A: Input current consumption is 7.5A. Auxiliary drive power consumption is only 55W, ensuring energy-efficient operation.
• Q: Does MR-J4W2-77B include safety functions?
  A: As part of the MELSERVO MR-J4 series, it supports STO (Safe Torque Off) safety functions. Refer to the manual for specific wiring details.

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