The MITSUBISHI MELSERVO-J4 SERIES SERVO AMPLIFIER 200W MR-J4-20A represents the pinnacle of advanced servo drive technology, engineered for demanding applications where precision, reliability, and efficiency are paramount. This model leverages sine-wave PWM control and current control methods to deliver exceptional torque and speed regulation, making it ideal for robotics, CNC machining, packaging, and assembly lines. With its robust design, the MR-J4-20A integrates seamlessly into existing MELSERVO-J4 systems, offering a compact yet powerful solution for 200W servo motor control. It supports both AC and DC power inputs, ensuring versatility across global installations, while its built-in dynamic brake enhances safety and reduces external component needs. The amplifier’s fully closed-loop compatibility and high-speed serial communication with Mitsubishi Electric encoders guarantee real-time accuracy, critical for high-precision tasks. Whether in single-axis or multi-axis configurations, the MR-J4-20A delivers consistent performance, backed by a 24 V DC interface power supply and comprehensive communication options including USB for MR Configurator2 and RS-422/RS-485 for networked control.
| Parameter |
MR-J4-20A |
Other Models (10A to 22KA) |
| Rated Voltage |
3-phase 170 V AC |
3-phase or 1-phase 170 V AC to 264 V AC (varies by model) |
| Rated Current [A] |
1.5 |
1.1 (10A) to 126 (22KA) |
| Voltage/Frequency at AC Input |
3-phase or 1-phase 200 V AC to 240 V AC, 50 Hz/60 Hz |
3-phase or 1-phase 200 V AC to 240 V AC, 50 Hz/60 Hz (varies by model) |
| Voltage at DC Input |
283 V DC to 340 V DC |
283 V DC to 340 V DC |
| Rated Current at AC Input [A] |
1.5 (Note 11) |
0.9 (10A) to 95 (22KA) |
| Permissible Voltage Fluctuation at AC Input |
3-phase or 1-phase 170 V AC to 264 V AC |
3-phase or 1-phase 170 V AC to 264 V AC (varies by model) |
| Permissible Voltage Fluctuation at DC Input |
241 V DC to 374 V DC |
241 V DC to 374 V DC |
| Permissible Frequency Fluctuation |
Within ±5% |
Within ±5% |
| Power Supply Capacity [kVA] |
Refer to section 10.2 |
Refer to section 10.2 |
| Inrush Current [A] |
Refer to section 10.5 |
Refer to section 10.5 |
| Interface Power Supply Voltage |
24 V DC ± 10% |
24 V DC ± 10% |
| Interface Power Supply Current Capacity [A] |
0.5 (including CN8 connector signals, Note 1) |
0.5 (including CN8 connector signals, Note 1) |
| Control Method |
Sine-wave PWM control, current control method |
Sine-wave PWM control, current control method |
| Dynamic Brake |
Built-in |
Built-in (up to 200A); External option for models 350A and above (Note 8, 12) |
| Fully Closed Loop Control |
Compatible (Note 9) |
Compatible (Note 9) |
| Load-Side Encoder Interface |
Mitsubishi Electric high-speed serial communication |
Mitsubishi Electric high-speed serial communication |
| Communication Function |
USB: MR Configurator2-compatible; RS-422/RS-485: 1:n communication (up to 32 axes, Note 7, 13) |
USB: MR Configurator2-compatible; RS-422/RS-485: 1:n communication (up to 32 axes, Note 7, 13) |
| Encoder Output Pulses |
Compatible (A/B/Z-phase pulse) |
Compatible (A/B/Z-phase pulse) |
| Analog Monitor |
Two channels |
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