Description
The Mitsubishi MR-J2S-40B is a compact 400W AC servo amplifier from the reliable MELSERVO J2-Super (MR-J2S) series. Designed for precise motion control in industrial automation, it supports position, speed, and torque control modes. The “-B” suffix indicates compatibility with SSCNET high-speed serial communication, allowing seamless integration with Mitsubishi CNC and motion controllers. It drives 200V class servo motors (such as HC-KFS, HC-MFS, or HC-SFS series) and features built-in dynamic braking for safe, rapid stopping.
Key Features
- Series: MELSERVO J2-Super (MR-J2S)
- Rated Output: 0.4 kW (400 W)
- Input Voltage: 200–230 V AC (Single or Three-Phase)
- Communication: SSCNET High-Speed Serial Bus
- Control Modes: Position, Speed, Torque
- Encoder Support: 17-bit resolution (131,072 p/rev)
- Safety: Built-in dynamic brake and comprehensive protection
- Cooling: Forced air cooling (internal fan)
Technical Specifications
- Model: MR-J2S-40B
- Power Supply: 200–230 V AC ±10%, 50/60 Hz
- Rated Current: Approx. 2.6–2.9 A (Output)
- Peak Current: Approx. 7.8 A
- Control Method: Sinusoidal PWM, Current Control
- Protection Functions: Overcurrent, Overvoltage, Undervoltage, Overload, Regeneration Error, Encoder Fault
- Operating Temperature: 0°C to +55°C (non-freezing)
- Storage Temperature: -20°C to +65°C
- Dimensions: Approx. 95 mm × 130 mm × 130 mm
- Weight: Approx. 0.9–1.1 kg
- Standards: CE, UL, RoHS compliant
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty
- Technical support for parameter setup and SSCNET configuration
- Compatibility verification with existing servo motors
- Commissioning and diagnostics support available
Delivery Time
- Standard delivery: 3-5 working days
- Express shipping available upon request
Why Choose Our Store
- Genuine Mitsubishi Electric components
- Global supply network with competitive pricing
- Expertise in servo drive systems and CNC integration
- Comprehensive technical documentation (Manuals, Datasheets)
- Responsive customer service and support
Applications
- CNC machine tools (mills, lathes)
- Packaging and labeling machinery
- Conveyor systems and material handling
- Robotics and automated assembly
- Printing and textile machinery





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