Mitsubishi MR-J3-10ARJ070 Servo Amplifier: Compact Precision for Small-Scale Automation

This is the Mitsubishi MR-J3-10ARJ070, a compact and efficient servo amplifier from the versatile MELSERVO MR-J3 series. The MR-J3-10ARJ070 delivers a 0.1kW output, making it the perfect choice for controlling small servo motors in precise applications like laboratory equipment, small pick-and-place units, or valve actuators.

Ideal for Simple, Precise Control

• Compact Power: Provides a 0.1 kW output for small, precise servo motors.
• Simple Power Connection: Operates on standard single-phase 200VAC, easy to integrate.
• Basic Communication: Features an RS-422 serial interface for straightforward setup and control.
• Essential Safety: Includes a built-in dynamic brake and core protection features.
• Space-Saving Design: Compact form factor ideal for control panels with limited space.

Complete Technical Specifications

• Brand & Series: Mitsubishi Electric, MELSERVO MR-J3 Series.
• Model: MR-J3-10ARJ070 Servo Amplifier.
• Rated Output: 0.1 kW (100 W).
• Rated Current: 0.2 A.
• Main Power Supply: 1-phase, 200VAC, 50/60Hz.
• Control Power Supply: 1-phase, 200VAC, 50/60Hz (shared with main power).
• Power Consumption: 50 W.
• Communication Interface: RS-422 (serial communication).
• Control Method: Sine-wave PWM control.
• Brake Unit: Built-in dynamic brake.
• Protection Functions: Overcurrent, undervoltage, and overheating protection.
• Regenerative Braking: Typically uses an internal regenerative resistor for this low power.
• Enclosure Rating: IP00 (Open chassis, requires protective panel).
• Operating Temperature: 0°C to +55°C.
• Typical Dimensions: Compact size (specific dimensions to be confirmed from official manual).
• Compatible Motors: Mitsubishi HF-KP, HC-KFS, and other small 100W class MR-J3 servo motors.

Warranty Assurance

We stand behind every product. This amplifier is covered by a full 12-month warranty against manufacturing defects.

Fast and Reliable Shipping

We ship worldwide using express carriers: FedEx, UPS, and DHL. Tracking information is provided for your order.

Frequently Asked Questions (FAQ)

What are typical applications for a small 0.1kW servo amplifier?

The MR-J3-10ARJ070 is ideal for small, precision mechanisms. Common uses include semiconductor manufacturing equipment, laboratory automation devices, precision dispensing valves, small rotary stages, and camera focusing systems in machine vision.

How does RS-422 control differ from pulse train or network control?

RS-422 provides serial communication for sending commands and parameters. It offers more flexibility than simple pulse/direction signals but is slower than real-time networks like EtherCAT. It's well-suited for standalone applications or simple point-to-point control from a PLC.

Does the single-phase power input limit performance?

For a 0.1kW motor, single-phase power is sufficient and simplifies wiring. The limitation is in the available regenerative energy absorption. For applications with high cycle rates or large inertial loads, ensure the internal regenerative resistor can handle the heat.

What should I check if the amplifier shows an undervoltage fault?

First, measure the incoming AC line voltage to ensure it is within the 180-220VAC range (±10% of 200V). Check all power connections are tight. If the voltage is correct, the fault may be internal, possibly related to the DC bus capacitor.

Can I use this to upgrade an old analog servo system?

Yes, the MR-J3-10ARJ070 can be an excellent upgrade. It offers digital control, better performance, and easier tuning than older analog drives. You will need to ensure compatibility with your existing motor's encoder type and modify the control signals from your controller to use RS-422.

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