Mitsubishi MR-J4-500B Servo Amplifier

Series#: Mitsubishi

Product Details

High-performance Mitsubishi MELSERVO-J4 Series Servo Amplifier MR-J4-500B, rated at 5 kW for demanding industrial motion control.
Advanced sine-wave PWM control with current control method ensures smooth, precise motor operation.
Built-in dynamic brake for enhanced safety and stopping performance in high-inertia applications.
Supports SSCNET III/H communication with cycle times as low as 0.222 ms for ultra-fast synchronization.
Compatible with fully closed loop control and load-side encoder interface for high-accuracy positioning.
Includes comprehensive protective functions and functional safety STO (IEC/EN 61800-5-2) for robust system protection.
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Specification

The Mitsubishi MELSERVO-J4 Series Servo Amplifier MR-J4-500B is a 5 kW powerhouse designed for precision motion control in industrial automation. Engineered to drive high-torque servo motors with exceptional efficiency, this amplifier delivers a rated output voltage of 3-phase 170 V AC and a rated current of 28 A, making it ideal for heavy-duty applications such as machining centers, packaging machinery, and robotics. Its advanced sine-wave PWM control ensures minimal torque ripple and smooth operation, while the built-in dynamic brake provides reliable deceleration. With support for SSCNET III/H high-speed synchronous communication and fully closed loop control, the MR-J4-500B guarantees superior accuracy and real-time responsiveness. The unit also features a USB interface for easy configuration via MR Configurator2, and it is equipped with extensive protective functions including overcurrent, overload, and encoder error protection, along with functional safety STO compliance for operator safety. Whether for new installations or upgrades, this amplifier offers robust performance and long-term reliability.

Parameter	Specification
Product Type	Mitsubishi MELSERVO-J4 Series Servo Amplifier
Model	MR-J4-500B
Output Rated Voltage	3-phase 170 V AC
Rated Current [A]	28
Power Supply Voltage/Frequency (AC Input)	3-phase 200 V AC to 240 V AC, 50 Hz/60 Hz
Power Supply Voltage (DC Input)	283 V DC to 340 V DC
Rated Current at AC Input [A]	21.7
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	Refer to section 10.2
Inrush Current [A]	Refer to section 10.5
Control Circuit Power Supply Input Voltage/Frequency	1-phase 200 V AC to 240 V AC, 50 Hz/60 Hz
Control Circuit Rated Current [A]	0.3
Control Circuit Power Consumption [W]	45
Control Circuit Inrush Current [A]	Refer to section 10.5
Control Circuit Voltage	24 V DC ± 10%
Control Circuit Current Capacity [A]	0.3 (including CN8 connector signals)
Control Method	Sine-wave PWM control, current control method
Dynamic Brake	Built-in
SSCNET III/H Communication Cycle	0.222 ms, 0.444 ms, 0.888 ms
Fully Closed Loop Control	Compatible
Scale Measurement Function	Compatible
Load-Side Encoder Interface	Mitsubishi Electric high-speed serial communication
Communication Function	USB: connection to a personal computer (MR Configurator2-compatible)
Encoder Output Pulses	Compatible (A/B/Z-phase pulse)
Analog Monitor	Two channels
Protective Functions	Overcurrent shut-off, regenerative overvoltage shut-off, overload shut-off (electronic thermal), servo motor overheat protection, encoder error protection, regenerative error protection, undervoltage protection, instantaneous power failure protection, overspeed protection, error excessive protection, magnetic pole detection protection, and linear servo control fault protection
Functional Safety	STO (IEC/EN 61800-5-2)