What Is SCADA? Supervisory Control Without Replacing the PLC
SCADA sits above PLCs and RTUs: it acquires field data, alarms operators, and issues supervisory commands across plants and remote assets—without replacing local deterministic control.

Engineered for high-performance motion control, the MR-J2S-200A is a digital AC servo drive module from the Melservo J2-Super series. This unit delivers precise control of speed, position, and torque across various industrial automation systems. By utilizing a sinusoidal PWM control and current control system, the drive ensures stable current delivery and optimal torque output throughout the operating range.
The MR-J2S-200A features multiple operational modes, supporting direct analog inputs for speed and torque command configuration, alongside high-speed pulse train interfaces for precise positioning tasks. Integration with a 131072 pulse-per-revolution encoder offers high-resolution feedback, minimizing positioning errors. A built-in dynamic brake is included to guarantee rapid, controlled deceleration and safe stop performance during emergency conditions or power failure events.
| Manufacturer | Mitsubishi Electric |
| Part Number / Model | MR-J2S-200A |
| Series | MR-J2S (Melservo J2-Super) |
| Power Supply (Voltage/Frequency) | 3-phase 200-230VAC, 50/60Hz |
| Permissible Voltage Fluctuation | 3-phase 170-253VAC |
| Permissible Frequency Fluctuation | +/-5% |
| Control System | Sinusoidal PWM control / current control system |
| Speed Frequency Response | 550 Hz or more |
| Maximum Input Pulse Frequency (Position Control) | 500 kpps (differential receiver), 200 kpps (open collector) |
| Analog Speed Command Input | 0 to +/-10VDC / rated speed |
| Torque Command Input | 0 to +/-8VDC / maximum torque (input impedance 10 to 12 kOhms) |
| Cooling Method | Fan-cooled |
| Enclosure Protection Rating | Open (IP00) |
| Weight | 3.1 kg |
For correct heat dissipation, mount the servo amplifier vertically on a flat panel using the designated mounting holes. Ensure a minimum clearance of 10 mm on both sides and 40 mm above and below the unit to allow unrestricted airflow from the internal cooling fan. Avoid installation environments subject to high humidity, conductive dust, or corrosive gases. Ground the amplifier securely to the main protective earth (PE) busbar to minimize electromagnetic interference (EMI) and prevent electrical shock hazards.
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| Country of origin |
United States
|