ABB 3ASU21C110 LU6278 DCU30/7 Digital Output Module

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• • • 1. Product Overview

      The ABB 3ASU21C110 LU6278 DCU30/7 is a high-reliability digital output module designed for ABB Distributed Control Systems (DCS) or PLC systems. It drives relays, contactors, indicator lights, alarms, and other devices, offering high interference immunity and fast response, suitable for various automation control applications.

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      2. Technical Specifications

      • Model: 3ASU21C110 LU6278 DCU30/7

      • Type: Digital Output Module

      • Output Type: Discrete digital output

      • Number of Channels: 16 channels

      • Output Load Capacity: Maximum 0.5 A per channel (may vary depending on load type)

      • Output Voltage: 24 V DC

      • Response Time: ≤ 5 ms

      • Isolation: Module isolated from control system for enhanced interference immunity

      • Operating Voltage: 24 V DC

      • Power Consumption: ≤ 4 W

      • Operating Temperature: 0°C ~ +60°C

      • Storage Temperature: -40°C ~ +85°C

      • Protection Class: IP20

      • Mounting: DIN rail or control panel

      • Status Indicators: LED indication for each channel output and module operation

      • Dimensions (H×W×D): ~120 × 45 × 100 mm

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      3. Features & Advantages

      1. High reliability — Industrial-grade design ensures stable long-term operation.

      2. Fast response — Output response time ≤ 5 ms for high-frequency control.

      3. Multiple channel output — 16 digital output channels to drive various actuators.

      4. Visual status — LED indicators for each channel and module status facilitate monitoring and maintenance.

      5. Easy integration — Seamlessly integrates with ABB DCS/PLC systems for automated control and remote monitoring.

      6. Safe isolation design — Output circuits isolated from control system circuits for improved safety and stability.

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      4. Typical Applications

      • Industrial automation control systems

      • Digital output for PLC and DCS systems

      • Driving relays, contactors, and alarms

      • Power, petrochemical, metallurgical, and pharmaceutical equipment control

      • Automated production line control and remote monitoring

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      5. Precautions

       

      • Ensure output load and module voltage match before installation to avoid overload.

      • Avoid high temperature, humidity, and corrosive environments.

      • Disconnect power during wiring and commissioning for safety.

      • Regularly check terminal connections and LED indicators for long-term reliability.

      • Avoid strong electromagnetic interference; shielding or grounding may be required.

      • Follow ABB DCS/PLC wiring and configuration guidelines to ensure system stability.

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