ABB QIFA-502 Low-Pass Filter Board

• • 1. Overview

    The ABB QIFA-502 Low-Pass Filter Board is an industrial-grade filtering module designed for use in control systems, drive units, motor controllers, and robotic signal interfaces. Its primary function is to remove high-frequency noise and interference, ensuring high-quality and stable analog signal transmission. It is commonly integrated into servo systems, PLC I/O channels, and feedback circuits to enhance system performance and reliability.

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    2. Key Technical Specifications (Typical Values)

    • Type: Low-Pass Filter Board

    • Filter Type: First-order or second-order active/passive LPF

    • Cutoff Frequency (Fc): Typically 1 kHz to 10 kHz

    • Input Voltage Range: 0–10 V or ±10 V

    • Output Voltage: Same amplitude as input, with smoothing

    • Signal Interface: Terminal block or slot-type connector

    • Power Supply: 24 VDC (typical)

    • Noise Attenuation: ≥ 40 dB at high-frequency band

    • Operating Temperature: –20 °C to +55 °C

    • Storage Temperature: –40 °C to +70 °C

    • Mounting: Rack / cabinet card installation

    • Compatibility: Supports ABB control systems, servo drives, and automation platforms

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    3. Advantages & Features

    1. Excellent Noise Reduction

    Efficiently removes high-frequency interference, spikes, and electrical noise.

    2. Improved System Stability

    Enhances signal quality, reduces controller errors, and improves performance.

    3. Industrial-grade Reliability

    Designed with robust components suitable for harsh industrial environments.

    4. Wide Compatibility

    Easily integrates with robots, servo drives, PLCs, and automation equipment.

    5. Easy Installation & Maintenance

    Standardized design for fast field replacement and minimal downtime.

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    4. Application Areas

    • Industrial robots (sensor filtering, feedback smoothing)

    • Servo drive control systems

    • Motor control and inverter systems

    • PLC analog I/O signal conditioning

    • Automation machinery control loops

    • Test and measurement systems

    • Power electronics and signal conditioning circuits

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    5. Notes and Precautions

    • Ensure proper wiring of input, output, ground, and power supply.

    • Do not exceed rated input voltage levels.

    • Keep wiring away from high-power noise sources.

    • Maintain cabinet ventilation for heat dissipation.

    • Periodically check terminal tightness.

    • Always use compatible original power and connectors.

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