Mitsubishi MR-J4-500A Servo Amplifier

Series#: Mitsubishi

Product Details

High-performance MITSUBISHI MR-J4-500A Servo Amplifier, rated for 5kW output in the MELSERVO-J4 Series.
Supports 3-phase 200-240V AC input, delivering a rated current of 28A for demanding industrial applications.
Built-in dynamic brake for enhanced safety and reliable stopping in servo motor control systems.
Fully closed-loop control compatible, enabling high-precision positioning with load-side encoder feedback.
Integrated USB and RS-422/485 communication for easy PC configuration and multi-axis networking.
Guaranteed 100% Original factory condition, offering fast and secure worldwide delivery.

Specification

The MITSUBISHI MR-J4-500A is a 5kW servo amplifier from the advanced MELSERVO-J4 Series, engineered for precision motion control in automation systems. This model features a robust power stage with sine-wave PWM control, supporting both AC and DC input configurations. It is designed for 3-phase 200-240V AC operation, delivering a rated current of 28A, with a permissible voltage fluctuation of 170-264V AC. The amplifier includes a built-in dynamic brake for standard models, while higher-capacity units may require an external option. Fully closed-loop control is supported via Mitsubishi Electric’s high-speed serial communication interface for load-side encoders, enabling sub-micron positioning accuracy. Communication functions include USB for direct PC connection via MR Configurator2 and RS-422/485 for up to 32-axis networking. The interface power supply is 24V DC ±10% with a current capacity of 0.5A. Analog monitoring is available on two channels, and encoder output pulses (A/B/Z-phase) are supported for feedback integration.

Specification	MR-J4-500A (5kW)
Rated Voltage	3-phase 170 V AC
Rated Current [A]	28 A
Voltage/Frequency (AC Input)	3-phase 200 V AC to 240 V AC, 50/60 Hz
Voltage/Frequency (DC Input)	283 V DC to 340 V DC
Rated Current at AC Input [A] (Note 11)	21.7 A
Permissible Voltage Fluctuation (AC Input)	3-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
Inrush Current [A]	Refer to section 10.5
Interface Power Supply Voltage	24 V DC ± 10%
Interface Power Supply Current Capacity [A]	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 (up to 32 axes)
Encoder Output Pulses	Compatible (A/B/Z-phase pulse)
Analog Monitor	Two channels