The Mitsubishi MELSERVO-J4 Series Servo Amplifier MR-J4-100A delivers 1 kW of continuous power, engineered for demanding industrial automation applications requiring precise torque, speed, and position control. This amplifier leverages advanced sine-wave PWM control and current control methodology to minimize torque ripple and acoustic noise, ensuring exceptional performance in machine tools, packaging lines, and robotics. With a rated current of 6 A at AC input and 5 A at DC input, the MR-J4-100A supports a wide permissible voltage fluctuation of 170–264 V AC (3-phase or 1-phase) and 283–340 V DC, making it adaptable to global power grids. The unit includes a built-in dynamic brake for standard models and is fully compatible with fully closed loop control via Mitsubishi Electric high-speed serial communication. Communication versatility is provided through USB and RS-422/RS-485 interfaces, enabling easy configuration and multi-axis networking. Analog monitor outputs (two channels) and encoder pulse output (A/B/Z-phase) facilitate external monitoring and integration. The interface power supply requires 24 V DC ±10% with a current capacity of 0.5 A (including CN8 signals). This amplifier is an ideal choice for upgrading existing J3 systems or building new high-performance servo axes.
| Parameter |
MR-J4-100A Specification |
| Rated Voltage (AC Input) |
3-phase 170 V AC |
| Rated Current (AC Input) |
6 A |
| Voltage/Frequency (AC Input) |
3-phase or 1-phase 200 V AC to 240 V AC, 50 Hz/60 Hz |
| DC Input Voltage |
283 V DC to 340 V DC |
| Rated Current (DC Input) |
5 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 (kVA) |
Refer to section 10.2 of manual |
| Inrush Current (A) |
Refer to section 10.5 of manual |
| 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 1 |
USB: Connection to PC (MR Configurator2-compatible) |
| Communication Function 2 |
RS-422/RS-485: 1:n communication (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