Mitsubishi MR-J4-100B-RJ Servo Amplifier

Series#: Mitsubishi

Product Details

Mitsubishi MELSERVO-J4 MR-J4-100B-RJ – High-performance 1kW servo amplifier for precision motion control.
Sine-wave PWM control with advanced current control for smooth, accurate torque and speed regulation.
Built-in dynamic brake for reliable stopping in standard models, with external option for larger sizes.
Supports SSCNET III/H communication cycles as low as 0.222 ms for ultra-fast synchronized multi-axis systems.
Compatible with fully closed-loop control and load-side encoder interface via Mitsubishi high-speed serial communication.
Integrated STO functional safety (IEC/EN 61800-5-2) and comprehensive protective functions for robust operation.
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Specification

The Mitsubishi MELSERVO-J4 Series MR-J4-100B-RJ servo amplifier is a 1kW powerhouse designed for demanding industrial automation applications. This unit delivers exceptional performance with a rated output voltage of 3-phase 170 V AC and a rated current of 6 A, ensuring precise motor control for high-speed and high-torque tasks. It operates on a 3-phase or 1-phase 200 V AC to 240 V AC input (50/60 Hz), with a permissible voltage fluctuation range of 170 V AC to 264 V AC. The control circuit power supply requires 1-phase 200 V AC to 240 V AC, consuming just 30 W. With a control method based on sine-wave PWM and current control, this amplifier supports SSCNET III/H communication cycles of 0.222 ms, 0.444 ms, or 0.888 ms, enabling seamless integration into synchronized multi-axis systems. It also features built-in dynamic brake for reliable deceleration, fully closed-loop control compatibility, and a load-side encoder interface using Mitsubishi high-speed serial communication. The unit includes two analog monitor channels, encoder output pulses (A/B/Z-phase), and a USB interface for MR Configurator2 setup. Protective functions cover overcurrent, regenerative overvoltage, overload, servo motor overheat, encoder errors, undervoltage, instantaneous power failure, overspeed, and more. Functional safety is ensured with STO (IEC/EN 61800-5-2). Below is the detailed specification table for the MR-J4-100B-RJ and related models.

Parameter	MR-J4-10B-RJ	MR-J4-20B-RJ	MR-J4-60B-RJ	MR-J4-70B-RJ	MR-J4-100B-RJ	MR-J4-200B-RJ	MR-J4-350B-RJ	MR-J4-500B-RJ	MR-J4-700B-RJ	MR-J4-11KB-RJ	MR-J4-15KB-RJ	MR-J4-22KB-RJ
Output Rated Voltage	3-phase 170 V AC
Rated Current [A]	1.1	1.5	3.2	5.8	6	11	17	28	37	68	87	126
Voltage/Frequency (AC Input)	3-phase or 1-phase 200 V AC to 240 V AC, 50/60 Hz	3-phase or 1-phase 200 V AC to 240 V AC, 50/60 Hz (Note 13)	3-phase 200 V AC to 240 V AC, 50/60 Hz
Voltage/Frequency (DC Input, Note 16)	283 V DC to 340 V DC
Rated Current [A] (Note 11)	0.9	1.5	3.2 (Note 6)	3.8	5	10.5	16	21.7	28.9	46	64	95
Permissible Voltage Fluctuation (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 (Note 13)	3-phase 170 V AC to 264 V AC
Permissible Voltage Fluctuation (DC Input, Note 16)	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
Control Circuit Power Supply (AC Input) Voltage/Frequency	1-phase 200 V AC to 240 V AC, 50/60 Hz
Control Circuit Power Supply (DC Input, Note 16)	283 V DC to 340 V DC
Control Circuit Rated Current [A]	0.2	0.3
Control Circuit Permissible Frequency Fluctuation	Within ±5%
Control Circuit Power Consumption [W]	30	45
Control Circuit Inrush Current [A]	Refer to section 10.5
Voltage (Control Circuit)	24 V DC ± 10%
Current Capacity [A] (including CN8 connector signals, Note 1)	0.3
Control Method	Sine-wave PWM control, current control method
Dynamic Brake	Built-in	External option (Notes 9, 12)
SSCNET III/H Communication Cycle (Note 8)	0.222 ms, 0.444 ms, 0.888 ms
Fully Closed Loop Control	Compatible (Note 7)
Scale Measurement Function	Compatible (Note 10)
Load-side Encoder Interface (Note 5)	Mitsubishi Electric high-speed serial communication
Communication Function	USB: connection to PC or others (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)