HC-KFS73

Overview of Mitsubishi MR-JN-40A AC Servo Amplifier

The Mitsubishi MR-JN-40A is an AC servo amplifier belonging to the MELSERVO JN series, designed to control servo motors with rated power up to 0.4 kW. It supports a single-phase 200-230 V AC power supply and features built-in dynamic brake and regenerative resistor for enhanced motor braking and energy regeneration. The amplifier provides reliable and precise position control, supporting encoder resolutions up to 131,072 pulses per revolution.

Key Features of Mitsubishi MR-JN-40A

• Rated Output Power: 0.4 kW (400 W)
• Input Voltage: Single-phase 200-230 V AC, 50/60 Hz
• Rated Current: 2.8 A
• Control System: Sine-wave PWM and current control
• Built-in Features: Dynamic brake and regenerative resistor
• Encoder Support: Incremental encoder up to 131,072 pulses/rev
• Protection Functions: Overcurrent, regeneration overvoltage, overload, motor overheat, encoder fault, undervoltage/sudden power outage, overspeed, excess error
• Cooling Method: Natural cooling, open frame (IP20 rated)
• Ambient Temperature Range: 0 to 55 °C
• Dimensions (WxHxD): Approximately 135 x 130 x 80 mm
• Weight: Approx. 1.5 kg
• Safety Certification: CE, UL
• Simple Servo Tuning: One-touch tuning for easy setup

Technical Specifications of MR-JN-40A

Applications / Use Case

The MR-JN-40A is ideal for compact industrial automation requiring smooth, precise control of small servo motors. Its integrated braking and regenerative features make it suitable for uses such as machine tooling, packaging, and assembly processes requiring efficient and reliable servo control.

Manufactured by Mitsubishi Electric, the MR-JN-40A offers an efficient, compact, and easy-to-use servo amplifier solution for low power servo systems.