JUSP-RA12 YASKAWA

JUSP-RA12 YASKAWA Power Board

Product  Description：

Yaskawa Power Boards are high-performance electronic assemblies engineered to manage and distribute electrical energy within industrial automation systems, primarily for AC drives (inverters), servo amplifiers, and machine controllers. These boards act as the power stage of the equipment, integrating high-voltage power semiconductors, gate drive circuitry, and filtering components. They are responsible for rectifying incoming AC power, maintaining the DC bus voltage, and converting it into controlled output power to drive high-precision motors.

Product Parameters

The technical specifications of Yaskawa Power Boards are designed to meet the demands of high-torque and high-speed motion control:

• Input Voltage Range: Supports standard industrial ratings including 200V-240V AC (three-phase) and 380V-480V AC, with some specialized boards for high-voltage 600V systems.

• DC Bus Voltage Management: Designed to handle peak DC voltages often exceeding 800V DC for 400V class systems, featuring integrated capacitor discharge circuits.

• Current Carrying Capacity: Rated for continuous output current ranging from 5A for small servo units to several hundred Amperes for large-scale industrial inverters.

• Switching Frequency: Optimized for high-frequency PWM (Pulse Width Modulation) switching, typically operating between 2kHz and 15kHz to ensure smooth motor rotation.

• Isolation Rating: Features high-voltage galvanic isolation between the power traces and the low-voltage control signals, often rated at AC 2500V or higher.

• Operating Temperature: Rated for industrial environments, typically maintaining full performance from -10°C up to 60°C with appropriate cooling.

Product Advantages

Yaskawa Power Boards are distinguished by their reliability and efficient energy management:

• Optimized Thermal Efficiency: Utilizes advanced copper trace layering and direct-bond copper (DBC) technology on ceramic substrates to maximize heat dissipation from power modules.

• Integrated Protective Circuits: Features onboard hardware-level protection for overcurrent, overvoltage, and thermal overload, which acts faster than software-based safety limits.

• Low Noise Emission: Incorporates advanced EMI/EMC filtering components directly onto the board to reduce electrical noise, which protects sensitive control signals and improves overall system stability.

• Compact Integration: By combining the gate driver, charging circuit, and sensing components into a single multi-layer board, Yaskawa significantly reduces the physical footprint of the inverter or servo drive.

• Long-Life Components: Selection of high-grade electrolytic capacitors and power resistors ensures a long service life, often rated for 10 years or more under continuous industrial operation.

Product Applications

These boards are the energy core of various critical industrial technologies:

• Servo Drive Systems: Driving Sigma series servo motors in high-speed robotic arms, pick-and-place machines, and CNC spindles.

• Variable Frequency Drives (VFDs): Powering large AC motors used in water pumps, ventilation fans, and heavy-duty conveyor systems.

• Renewable Energy Inverters: Managing power conversion in solar and wind energy storage systems where high efficiency is paramount.

• Elevator and Hoist Systems: Providing the robust power required for vertical transportation, ensuring smooth acceleration and regenerative braking.

• Electric Vehicle (EV) Infrastructure: Used in specialized industrial vehicle charging and motor control modules for warehouse AGVs (Automated Guided Vehicles).

Important Precautions

Due to the high-voltage nature of power boards, the following precautions are essential for safety and equipment longevity:

• Residual Voltage Hazard: The large capacitors on the power board can store lethal charges for several minutes after the main power is disconnected. Always use a multimeter to verify that the DC bus voltage is below 50V before touching the board.

• Proper Cooling: Ensure the board's heatsink is correctly seated and that the thermal paste is applied evenly. Obstructed airflow or a failing cooling fan will lead to immediate thermal degradation of the power components.

• Terminal Torque: When connecting high-voltage cables to the board terminals, ensure they are tightened to the exact torque specification. Loose connections can cause localized heating and fire hazards.

• Static Electricity Handling: Even though these are power boards, the integrated gate drive circuitry is highly sensitive to Electrostatic Discharge (ESD). Always wear an ESD wrist strap during installation or maintenance.

• Moisture and Contamination: Never operate the board in an environment with conductive dust or moisture. Use an IP54 or higher rated enclosure if the machine is located in a harsh environment to prevent electrical arcing across high-voltage traces.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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