Mitsubishi MR-J3-350A Servo Amplifier: High-Power Precision

Demand high performance. The Mitsubishi MR-J3-350A is a robust 3.5kW servo drive designed for industrial automation. It delivers precise control for demanding applications with advanced feedback and safety features.

Core Product Benefits

• High Power: 3.5 kW (3500W) output for heavy-duty motion control tasks.
• Ultra-Precise: 262,144 pulses/rev feedback for exceptional positioning accuracy.
• Robust Design: Built for 3-phase industrial power (200-230V AC) with fan cooling.
• Safety Integrated: Includes a built-in dynamic brake for reliable emergency stopping.
• Advanced Control: Uses sine-wave PWM and current control for smooth, efficient motor operation.

Complete Technical Specifications

Brand & Model: Mitsubishi MR-J3-350A
Product Line: MELSERVO-J3 Series Servo Amplifier
Rated Output Power: 3.5 kW (3500 Watts)
Rated Current: 17 A
Motor Output Power: 30 W (for control circuit reference)
Main Power Supply: 200-230V AC, 3-Phase, 50/60 Hz (±5% frequency tolerance)
Interface Power: 24V DC (±10%), 300 mA
Control System: Sine-wave PWM Control, Current Control System
Position Feedback: 262,144 pulses per revolution (p/rev)
Positioning Width Setting: 0 to ±10,000 pulses
Excess Error: ±3 rotations
Brake System: Built-in Dynamic Brake and Regenerative Resistor
Communication: RS-422 Interface
Cooling Method: Fan-Cooled
Enclosure Type: Open (IP00)
Operating Temperature: 0°C to +55°C
Weight: 2.24 kg (4.94 lbs)

Installation Guidelines

Install the MR-J3-350A in a well-ventilated electrical cabinet to allow for fan cooling. Ensure a stable 3-phase 200-230V AC power supply. The environment must be clean, dry, and within the 0°C to 55°C range. Connect using the RS-422 communication cable. Note: The IP00 open enclosure offers no protection against dust or water ingress.

Professional FAQs

What makes the positioning feedback of 262,144 p/rev special?
This ultra-high resolution allows for extremely precise motor shaft positioning, which is critical in applications like CNC machining or precise assembly.

Can this drive handle rapid start-stop cycles?
Yes. The built-in dynamic brake and regenerative resistor are designed to manage energy from frequent deceleration, protecting the drive.

What does "fan-cooled" mean for installation?
You must provide adequate space around the amplifier for airflow. Do not block the fan intake or exhaust, as this prevents overheating.

Is single-phase power an option for this model?
No. The MR-J3-350A requires a three-phase 200-230V AC power input to operate correctly.

How is the positioning width setting used?
This parameter allows you to define the acceptable error window for positioning completion, useful for fine-tuning machine tolerance.

Package & Warranty Information

Box Contents:
1 x MR-J3-350A Servo Amplifier Unit
1 x Set of Documentation

Warranty Coverage: This product is protected by a 12-month warranty against defects in materials and workmanship.

Shipping Services: We deliver using trusted global carriers: FedEx, UPS, and DHL.

© 2025 Ubest Automation Limited. All rights reserved.
Original Source: https://www.ubestplc.com/
Contact: sales@ubestplc.com | Tel: +86 180 3000 5825