The Mitsubishi MR-J4-10A is a high-performance servo amplifier from the MELSERVO-J4 Series, designed for 100W AC servo motors. This unit delivers exceptional torque and speed control with sine-wave PWM and current control methods, ensuring smooth motion in demanding industrial environments. The MR-J4-10A features a built-in dynamic brake for safe deceleration and supports fully closed-loop control for position accuracy. It operates on a main circuit power supply of 3-phase 170V AC or 1-phase 200-240V AC, with a rated current of 1.1A. The interface power supply requires 24V DC ±10% at 0.5A. Communication is enabled via USB (for MR Configurator2) and RS-422/RS-485 for multi-axis networking (up to 32 axes). Encoder output pulses (A/B/Z-phase) and two analog monitor channels are included. The permissible voltage fluctuation is 170V AC to 264V AC, with frequency tolerance within ±5%. For AC input models, the inrush current and power supply capacity are detailed in the technical manual. The load-side encoder interface uses Mitsubishi Electric high-speed serial communication. This unit is compatible with standard AC models and is ideal for applications like CNC, robotics, and packaging machinery.
| Parameter |
Specification (MR-J4-10A) |
| Rated Voltage (Main Circuit) |
3-phase 170 V AC |
| Rated Current (Main Circuit) |
1.1 A |
| Voltage/Frequency (AC Input) |
3-phase or 1-phase 200 V AC to 240 V AC, 50/60 Hz |
| Voltage (DC Input) |
283 V DC to 340 V DC |
| Rated Current (AC Input) |
0.9 A |
| Permissible Voltage Fluctuation (AC Input) |
3-phase or 1-phase 170 V AC to 264 V AC |
| Permissible Voltage Fluctuation (DC Input) |
241 V DC to 374 V DC |
| Permissible Frequency Fluctuation |
Within ±5% |
| Power Supply Capacity |
Refer to section 10.2 |
| Inrush Current |
Refer to section 10.5 |
| Interface Power Supply Voltage |
24 V DC ± 10% |
| Interface Power Supply Current Capacity |
0.5 A (including CN8 connector signals) |
| Control Method |
Sine-wave PWM control, current control method |
| Dynamic Brake |
Built-in |
| Fully Closed Loop Control |
Compatible (Note 9) |
| Load-side Encoder Interface |
Mitsubishi Electric high-speed serial communication |
| Communication Function |
USB (MR Configurator2-compatible), RS-422/RS-485 (1:n, up to 32 axes) |
| Encoder Output Pulses |
Compatible (A/B/Z-phase pulse) |
| Analog Monitor |
Two channels |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22