Mitsubishi MR-J3-20A1 200W Servo Drive

The Mitsubishi MR-J3-20A1 is a versatile AC servo drive designed for reliable operation in diverse industrial environments. This 200W unit handles variable power conditions with ease, making it a flexible choice for precision motion control. It is part of the trusted MELSERVO MR-J3 series from Mitsubishi Electric.

Electrical Specifications & Ratings

• Manufacturer & Model: Mitsubishi MR-J3-20A1 AC Servo Drive.
• Rated Output: 200W (0.2kW) with a rated output current of 1.5A.
• Main Power Input: Single-phase 100-120V AC, 50/60Hz (5.0A).
• Motor Output: Delivers up to 170V AC with a frequency range of 0 to 360 Hz.
• Control Circuit: Powered by 24VDC with a required capacity of 0.3A.
• Permissible Fluctuation: Handles input voltage variations from 323 to 528V AC.

Control & Functional Features

• Communication & Input: RS-422 interface with max pulse frequency of 1Mpps (differential).
• Built-in Safety: Includes a dynamic brake and regenerative resistor for system protection.
• Motion Control: Supports position smoothing and S-pattern acceleration/deceleration.
• Error Protection: Features excessive error protection with a revolution limit.
• Operating Environment: Rated for reliable performance from 0 to 55°C ambient temperature.
• Physical Data: Compact and lightweight at 2.13 lbs (0.96 kg) for easy integration.

Packaging & Global Shipping

• One Mitsubishi MR-J3-20A1 Servo Drive unit.
• Comprehensive installation and operation manual.
• Standard mounting hardware and connection accessories.
• International shipping via FedEx, UPS, and DHL for prompt delivery worldwide.

Professional FAQ

• What is the main advantage of the wide voltage input range on this drive?

The ability to handle 100-120V AC input with high permissible fluctuation makes the MR-J3-20A1 exceptionally robust in areas with unstable power grids or varying factory voltage conditions.

• When would I need to add an optional external regenerative unit?

If your application involves frequent, rapid deceleration of high-inertia loads, the built-in resistor may be insufficient. An external regenerative option is needed to handle the excess regenerative energy safely.

• How does the "S-pattern" acceleration/deceleration benefit my machine?

This feature creates a smooth, S-curve speed profile instead of a trapezoidal one. It reduces mechanical shock and vibration, leading to less wear on gears and belts and higher product quality.

• Can this 100V-class drive be used with higher voltage motors?

No, the MR-J3-20A1 is designed for the 100V motor class. Its output is rated for 170V AC. Always match the drive voltage class with the compatible servo motor as specified by Mitsubishi.

• What does the "excessive error protection, 3 revs" function mean?

This is a safety feature. If the positional error between the command and the actual motor position exceeds a set limit for more than 3 motor revolutions, the drive will trigger a fault to prevent potential damage.

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