The Mitsubishi MR-J2S-500B-PY135 is a500A high-power, general-purpose AC servo amplifier from the legacy MR-J2S series. It is designed to drive and control Mitsubishi HC-SFS, HC-RFS, and HC-UFS series servo motors with a capacity of 5.0 kW. This driver features a sophisticated control system that provides high-precision positioning, speed, and torque control. The "-PY135" suffix indicates it is a special model, often signifying a specific firmware version, communication protocol, or a bundled package (e.g., including a specific option like a regenerative brake resistor). It is engineered for robust performance in industrial automation applications requiring high torque and dynamic response, such as large-scale machinery, printing presses, and material handling systems.
MR-J2S-500B-PY135 Features
•High-Response Positioning: Equipped with a high-performance 22-bit encoder interface, enabling ultra-fine resolution for precise motor control and smooth operation even at low speeds.
•High Torque & Overload Capacity: Delivers a continuous output current of 500A, with a high overload capability (350% for several seconds) to handle peak demands during acceleration and sudden load changes.
•Easy Setup and Tuning: Features auto-tuning functionality that automatically adjusts servo gains to match the mechanical system, reducing setup time and optimizing performance.
•Strong Regenerative Braking: Includes a powerful built-in regenerative brake circuit. For high-duty cycles, an external regenerative brake resistor (often required for this model) can be connected to efficiently dissipate energy.
•Multiple Control Modes: Supports various control modes including Torque Control, Speed Control, and Position Control (using pulse train input from a PLC or motion controller).
•Comprehensive Protection Functions: Incorporates multiple safety features such as overcurrent, overload, overvoltage, and overspeed protection to ensure the safety of the driver, motor, and machinery.
MR-J2S-500B-PY135 Material & Typical Applications
•Material:
•Chassis: Metal (e.g., aluminum alloy) for structural strength and heat dissipation.
•Internal Components: Printed Circuit Boards (PCBs) with electronic components (ICs, capacitors, power transistors), heat sinks, and cooling fans.
•Primary Uses:
•Industrial Machinery: Large injection molding machines, metal forming presses, large CNC machine tools.
•Material Handling: High-speed, high-load conveyor systems, automated storage/retrieval systems (AS/RS), large robotic arms.
•Printing and Paper Converting: Drive systems for printing presses, cutters, and winders requiring precise synchronization.
•Textile Machinery: Large looms and spinning machines.
MR-J2S-500B-PY135 Important Parameters
The following table summarizes the key specifications of the Mitsubishi Servo Amplifier, Model MR-J2S-500B.
Parameter
Specification
Notes / Conditions
Model
MR-J2S-500B-PY135
Servo Amplifier (Drive Unit)
Series
MR-J2S (Super Legacy Series)
Note: This is an older generation product.
Compatible Motor Series
HC-SFS, HC-RFS, HC-UFS
5.0 kW capacity motors
Rated Output Current
50.0 A
-
Maximum Output Current
500 A
Corresponds to high overload capacity
Rated Output Power
5.0 kW
-
Main Circuit Power Supply
3-phase, 200V to 230V AC, 50/60 Hz
-
Control Input Power Supply
1-phase, 200V to 230V AC, 50/60 Hz
-
Control Method
I-P (P.I.) Control, Sine Wave PWM Control
-
Feedback Resolution
22-bit (4,194,304 p/rev)
High-resolution encoder support
Communication Interface
SSCNET (High-Speed Serial Communication)
Mitsubishi's proprietary fiber-optic network
Regenerative Brake
Built-in + External Resistor Connection
An external resistor is typically required.
Protection Class
IP00 (Open Chassis)
Must be installed in a protective control panel.
Main Cooling Method
Forced Air Cooling (Fan)
Good Service in WTL:
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