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Industrial PCMitsubishi MR-J4W2-77B MELSERVO-J4 2-Axis AC Servo Amplifier 750W
- Genuine Mitsubishi Electric MR-J4W2-77B servo amplifier
- Part of the high-performance MELSERVO-J4 series
- Integrated 2-axis servo amplifier
- Provides 750 W output for each A and B axis
- Supports 200–240 V AC single-phase or three-phase main-circuit input
- SSCNET III/H compatible high-speed servo communication
- Built-in dynamic brake
- Built-in STO safety function
- High-speed servo-control architecture
- Suitable for rotary, linear and direct-drive motor applications
- Compact multi-axis design helps reduce control-panel space
- Suitable for coordinated multi-axis machine control
- Ideal for CNC, packaging, assembly, machine tools and precision automation
- Suitable for replacement and maintenance of Mitsubishi MELSERVO-J4 systems
| Brand | Mitsubishi |
|---|---|
| Category | SERVO AC DRIVE |
The Mitsubishi MR-J4W2-77B is a high-performance 2-axis digital AC servo amplifier from the Mitsubishi Electric MELSERVO-J4 series. It is designed to control two servo motors from a single amplifier, with a rated capacity of 750 W for each axis.
The servo amplifier supports 200–240 V AC main-circuit power and can operate with either single-phase or three-phase input. Each axis provides a rated output current of 5.8 A, while the main circuit rated current is 7.5 A.
The MR-J4W2-77B uses SSCNET III/H as its servo command interface, providing high-speed communication between the motion controller and servo amplifier. Mitsubishi specifies high-speed bidirectional communication of up to 150 Mbps.
The MELSERVO-J4 architecture delivers high-speed servo control and supports high-resolution encoder technology. The MR-J4W2-77B also incorporates a built-in dynamic brake and STO safety function, making it suitable for demanding industrial motion-control applications.
Its two-axis configuration helps reduce installation space compared with using separate single-axis amplifiers. The unit can be used with compatible Mitsubishi servo motors and is suitable for machine tools, CNC equipment, packaging machines, assembly systems, robotics, semiconductor equipment and precision positioning machinery.
Manufacturer: Mitsubishi Electric
Part Number: MR-J4W2-77B
Product Family: MELSERVO-J4
Servo Type: Digital AC Servo Amplifier
Number of Axes: 2
Rated Capacity: 0.75 kW × 2 axes
Voltage Class: 200 V
Main Supply: 200–240 V AC
Input: 1-Phase / 3-Phase
Rated Input Current: 7.5 A
Output: 3-Phase 170 V AC
Rated Output Current: 5.8 A per axis
Command Interface: SSCNET III/H
Safety Function: STO
Dynamic Brake: Built-in
Protection: IP20
Mounting: Panel Mount
Dimensions: 85 × 168 × 195 mm
Approx. Weight: 2 kg
Operating Temperature: 0–55°C
Application: Multi-Axis Motion Control
Condition: New / Used / Refurbished depending on available stock
