Mitsubishi MR-J3-70B Servo Drive

Series#: Mitsubishi

Product Details

Model: MITSUBISHI SERVO DRIVE MR-J3-70B – A high-performance 750W servo amplifier from the renowned MR-J3 series, designed for precision motion control in industrial automation.
Advanced Sine-wave PWM Control – Ensures smooth, efficient motor operation with minimal torque ripple and high accuracy.
Built-in Dynamic Brake – Provides reliable emergency stopping and safe deceleration for enhanced system safety.
Wide Input Voltage Range – Operates on 3-phase or 1-phase 200 to 230VAC, with permissible fluctuation from 170 to 253VAC for robust performance.
High-Resolution Feedback – Supports up to 262,144 pulses per revolution via encoder, enabling precise positioning and speed control.
Comprehensive Safety Features – Includes overcurrent, overvoltage, overload, and encoder fault protection for reliable operation in demanding environments.
Guaranteed 100% Original factory condition, offering fast and secure worldwide delivery.

Specification

The MITSUBISHI SERVO DRIVE MR-J3-70B is a cutting-edge servo amplifier engineered for demanding automation applications requiring 750W output. Part of the industry-standard MR-J3 series, this model delivers exceptional performance with sine-wave PWM control, offering smooth torque and speed regulation across position, speed, and torque control modes. Its robust design supports both 3-phase and single-phase power inputs, making it versatile for global installations. The drive features a built-in dynamic brake for safe stops, a high-resolution encoder interface for precise feedback, and advanced protective functions to ensure longevity. Ideal for machine tools, packaging equipment, and robotics, the MR-J3-70B combines reliability with advanced motion control capabilities.

Specification	MR-J3-70B (750W)
Control System	Sine-wave PWM control / current control system
Power Supply (Main Circuit)	3-phase 200 to 230VAC 50/60Hz or 1-phase 200 to 230VAC 50/60Hz
Permissible Voltage Fluctuation	3-phase: 170 to 253VAC; 1-phase: 170 to 253VAC
Permissible Frequency Fluctuation	±5% maximum
Control Power Supply	1-phase 200 to 230VAC 50/60Hz
Interface Power Supply	24VDC ±10% (required current capacity: 300mA)
Power Consumption	45W
Built-in Regenerative Resistor	20Ω
External Regenerative Resistor (Standard Accessory)	Not supplied (built-in sufficient for typical loads)
Dynamic Brake	Built-in
Safety Features	Overcurrent, regeneration overvoltage, overload (electronic thermal), motor overheat, encoder fault, undervoltage, overspeed, excess error protection
Maximum Input Pulse Frequency	1Mpps (differential receiver), 200kpps (open collector)
Positioning Feedback Pulse	262,144 p/rev (encoder resolution per motor rotation)
Command Pulse Multiple (Electronic Gear)	A: 1 to 1,048,576; B: 1 to 1,048,576; 1/10 < A/B < 2000
Positioning Complete Width Setting	0 to ±10,000 pulses (command pulse unit)
Excess Error	±3 rotations
Torque Limit	Set by parameters or external analog input (0 to +10VDC/maximum torque)
Speed Control Range	Analog: 1:2000; Internal: 1:5000
Analog Speed Command Input	0 to ±10VDC/rated speed
Speed Fluctuation Rate	±0.01% max (load 0-100%), 0% (power ±10%), ±0.2% max (ambient temp 25°C±10°C)
Analog Torque Command Input	0 to ±8VDC/maximum torque (input impedance 10-12kΩ)
Speed Limit (Torque Mode)	Set by parameters or external analog input (0 to ±10VDC/rated speed)
Structure	Fan cooling open (IP00)
Ambient Temperature	0 to 55°C (32 to 131°F) operation; -20 to 65°C (-4 to 149°F) storage
Ambient Humidity	90% RH max (non-condensing) operation and storage
Atmosphere	Indoors, no direct sunlight; free from corrosive gas, oil mist, or dust
Elevation	1000m or less above sea level
Vibration	5.9m/s² maximum
Weight	1.4 kg (3.1 lb)