Mitsubishi MR-J3-200AN: Robust 2kW Servo Amplifier with Dynamic Brake

Power mid-range industrial axes with reliable control. The Mitsubishi MR-J3-200AN is a 2-kilowatt servo amplifier. It provides precise motor control using advanced sine-wave PWM technology. This drive includes a built-in dynamic braking unit for controlled stopping, making it ideal for applications requiring frequent deceleration.

Detailed Technical Specifications

• Product Model: Mitsubishi MR-J3-200AN (MELSERVO J3 Series).
• Power Rating: 2 kW rated active output power, 11 Amperes current.
• Power Supply: 3-phase, 200-230V AC (170-253V AC permissible range).
• Control Method: Sine-wave Pulse Width Modulation (PWM) with current control.
• Braking: Built-in dynamic brake unit for regenerative energy management.
• Control Power: 24V DC interface supply (0.3A capacity) for peripheral devices.
• Cooling: Forced ventilation cooling.
• Protection Rating: IP00 (open chassis); requires protective enclosure.
• Operating Environment: 0°C to 55°C, up to 1000m (3280 ft) altitude.

Installation & System Integration

• Mounting: Must be installed inside an electrical control cabinet (IP00).
• Vibration Resistance: Suitable for mounting on machinery with moderate vibration, such as packaging machines or conveyors.
• Heat Management: Ensure adequate clearance around the unit and proper cabinet ventilation to support the forced cooling system.
• Motor Compatibility: Designed to operate with Mitsubishi HC-SF, HC-RF, and HC-UF series 200V class servo motors of corresponding power.
• Regenerative Handling: The built-in dynamic brake is sufficient for occasional stopping. For high-duty-cycle braking, an external regenerative resistor may be required.

Packaging & Support Details

• The servo amplifier is shipped as a single unit, weighing 4.25 lbs (1.93 kg).
• This industrial drive is covered by our standard warranty terms.
• Global shipping is available via FedEx, UPS, and DHL.

Expert FAQs

• How does the built-in dynamic brake work?
  When decelerating, the motor acts as a generator. The drive's internal brake transistor switches this regenerative energy to a resistor (which may be internal or external), converting it to heat and allowing for controlled, rapid stopping.
• When would I need to add an external regenerative resistor?
  If your application involves very frequent start/stop cycles or is stopping high-inertia loads, the regenerative energy may exceed the heat dissipation capacity of the built-in circuit. An external resistor provides higher power handling.
• What is the 24V DC interface power used for?
  It powers the drive's internal control circuits and can also supply external devices like an external regenerative resistor unit, a cooling fan for the resistor, or peripheral switches and sensors, up to its 0.3A limit.
• Can this drive operate on single-phase 220V power?
  No. The MR-J3-200AN requires a 3-phase 200-230V AC input. Applying single-phase power can damage the unit and will not provide the necessary capacity for the motor.
• What does the vibration resistance specification mean for installation?
  The drive can withstand continuous vibration of 5.9 m/s² (approximately 0.6 G) in any direction. This means it can be mounted directly on many types of industrial machinery without requiring special vibration-isolation mounts.

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