JRMSI-MB70 YASKAWA

JRMSI-MB70 YASKAWA Circuit Board

Product  Description：

Yaskawa circuit boards encompass a wide array of specialized printed circuit assemblies used primarily within their Sigma series servo drives, AC inverters (V1000, GA700), and MP series machine controllers. These boards act as the foundational hardware for power conversion, signal processing, and high-speed communication. Whether they are control boards (logic-side) or power boards (gate-drive side), Yaskawa’s circuit boards are engineered to facilitate precision motion and energy-efficient motor control.

Product Parameters

The technical specifications of Yaskawa circuit boards vary depending on whether they serve control or power functions:

• Logic Voltage Levels: Typically operates on 5V DC and 24V DC for internal processing and I/O interfacing.

• Component Density: High-density surface-mount technology (SMT) allows for multi-layer designs that minimize the physical footprint of servo and inverter units.

• Switching Frequency Compatibility: Power-related boards are designed to handle high-speed PWM (Pulse Width Modulation) switching, often up to 15kHz or 20kHz, with minimal thermal loss.

• Thermal Conductivity: Utilizes specialized substrates and heavy copper traces in power sections to manage the heat generated by IGBT modules.

• Communication Interface Support: Integrated circuitry for MECHATROLINK-III/4, Ethernet/IP, and high-speed encoder feedback processing.

• Isolation Rating: Opto-isolation and magnetic isolation are standard between the high-voltage power circuits and the low-voltage control logic, often exceeding 2kV.

Product Advantages

Yaskawa circuit boards are characterized by their extreme durability and advanced signal integrity:

• Proprietary ASIC Integration: Yaskawa often uses custom Application-Specific Integrated Circuits (ASICs) on their boards, which allows for faster motor control calculations than general-purpose processors.

• Vibration Resistance: The soldering and mounting techniques used on these boards meet strict industrial standards (JIS/IEC), ensuring they remain functional in high-vibration machinery environments.

• Superior Noise Immunity: Multi-layer PCB designs include dedicated ground planes and advanced shielding techniques to prevent electromagnetic interference (EMI) from affecting sensitive control signals.

• Longevity and Quality Control: Manufactured in-house under rigorous standards, these boards are known for an exceptionally low failure rate and a service life that often extends beyond a decade.

• Environmental Protection: Many boards come with standard or optional conformal coating to protect against conductive dust, humidity, and chemical exposure.

Product Applications

These circuit boards are the internal "organs" of various critical industrial components:

• Servo Drive Control: Functioning as the main logic board in Sigma-7 and Sigma-10 drives to manage position, speed, and torque loops.

• Inverter Power Stages: Acting as the gate drive board in GA700 and A1000 inverters to accurately switch high-power IGBTs for AC motor control.

• Robot Controllers: Serving as the specialized CPU and I/O boards within Yaskawa Motoman robot cabinets to coordinate multi-axis robotic movement.

• Encoder Signal Converters: Processing high-resolution feedback signals from absolute encoders to ensure sub-micron positioning accuracy.

• Regenerative Converters: Managing the return of braking energy to the power grid in large-scale elevator and crane systems.

Important Precautions

To prevent damage and ensure the safety of the hardware, the following precautions are essential:

• Electrostatic Discharge (ESD): These boards contain highly sensitive CMOS components. Always use an anti-static wrist strap and an ESD-safe mat when handling or replacing a board.

• Capacitor Discharge Time: Before removing a circuit board from an inverter or servo drive, wait at least 5 to 10 minutes after disconnecting power. High-voltage capacitors can retain lethal charges even when the unit is unplugged.

• Correct Fastening: When installing a board, ensure all screws are tightened to the correct torque. Loose screws can lead to poor grounding, which results in intermittent faults or "noise" alarms.

• Terminal Integrity: Inspect the pin connectors and ribbon cable headers for any bent pins before mating. Forcing a connection can permanently damage the board's interface.

• Environmental Sealing: If a board is removed for inspection, ensure the cabinet is sealed properly upon reinstallation. Exposure to oil mist or metallic dust can cause short circuits across the fine traces of the PCB.

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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