Mitsubishi MR-J3-700B4RJ006 Servo Amplifier: Reliable Power for Precise Motion

This is the Mitsubishi MR-J3-700B4RJ006, a robust servo amplifier from the MELSERVO MR-J3 series. The MR-J3-700B4RJ006 delivers smooth and accurate control for industrial servo motors. Its force-cooled design ensures stable performance in demanding automation applications.

Why Choose This Amplifier?

• Advanced Control: Features sine-wave PWM and current control for smooth, precise motor operation.
• Enhanced Safety: Includes a built-in dynamic brake for reliable and safe motor stopping.
• Robust Design: Open, force-cooled (IP00) structure ensures good heat dissipation.
• Industrial Power: Compatible with standard 3-phase 200-230VAC power supplies.
• Easy Integration: Provides 24VDC interface power for connecting to PLCs and controllers.

Complete Technical Specifications

• Brand & Series: Mitsubishi Electric, MELSERVO MR-J3.
• Model Number: MR-J3-700B4RJ006 Servo Amplifier.
• Rated Output: 7.0 kW.
• Main Power Input: 3-phase, 200-230VAC, 50/60Hz.
• Control Circuit Power: 1-phase, 200-230VAC, 50/60Hz, 45W.
• Interface Power: 24VDC, 150mA.
• Control Method: Sine-wave PWM control with IGBT.
• Protection Functions: Overcurrent, overload, overvoltage, overheating.
• Communication: Compatible with SSCNET III high-speed network (optional module required).
• Operating Temperature: 0°C to +55°C (non-freezing).
• Storage Temperature: -20°C to +65°C.
• Vibration Resistance: 5.9 m/s².
• Weight: Approximately 6.2 kg.
• Compatible Motors: Works with Mitsubishi HF-KP, HF-MP, and other MR-J3 series servo motors.

Warranty Information

Your purchase is protected. This product comes with a reliable 12-month warranty against defects in materials and craftsmanship under normal operating conditions.

Global Shipping Options

We ship internationally using major express carriers: FedEx, UPS, and DHL. You will receive tracking details once your order is dispatched.

Frequently Asked Questions (FAQ)

Which servo motors are compatible with this amplifier?

This 7.0 kW amplifier is designed to drive servo motors of a similar power rating from the Mitsubishi MR-J3 compatible series. For best performance, refer to the official motor compatibility guide to ensure a perfect match.

How do I connect this to a motion controller?

For basic control, use the digital I/O powered by the 24VDC interface. For advanced, high-speed multi-axis systems, connect it via the SSCNET III fiber optic network to a compatible Mitsubishi motion controller or PLC.

Is it safe to use in a dirty workshop?

No. The amplifier has an IP00 open structure. It must be installed inside a sealed electrical enclosure (control panel) to protect it from dust, chips, and liquids, while ensuring adequate cooling airflow.

What is a key parameter to set correctly during setup?

Accurately setting the load inertia ratio is critical. An incorrect value can lead to poor tuning, mechanical vibration, or unstable operation. Always calculate or measure your system's inertia for optimal performance.

The amplifier shows an overload alarm. What are the first steps?

First, check if the connected mechanical load is jammed or too heavy. Then, verify the amplifier's installation environment temperature is within the 0-55°C range. Also, ensure the cooling fan is working and the heatsinks are not blocked by dust.

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