ABB UNS2980c-ZV4 excitation control unit module

ABB UNS2980C-ZV4 Excitation Control Unit Module – Product Information

1. Product Overview

The ABB UNS2980C-ZV4 is a high-performance excitation control unit module designed for large power equipment and generator excitation systems.
It precisely controls the excitation current to regulate generator voltage, ensure stable operation, and provide protection functions. Its redundancy and intelligent control features ensure high reliability and safety in critical industrial applications.

2. Technical Specifications

• Model: UNS2980C-ZV4

• Type: Excitation Control Unit Module

• Series: Synchrotact 4

• Supply Voltage: 24 V DC

• Output Current: Max 15 A

• Power Consumption: Approx. 7 W

• Communication Interface: Modbus RTU

• Processing Capability: High-speed microprocessor control

• Operating Temperature: -20 ℃ to +70 ℃

• Storage Temperature: -30 ℃ to +80 ℃

• Dimensions: 130 × 160 × 25 mm

• Weight: Approx. 1.3 kg

• Certifications: CE, RoHS

3. Features and Advantages

1. Precise Excitation Control – Intelligently adjusts excitation current according to load and system status.

2. Multiple Excitation Modes – Supports constant, adaptive, and customized excitation modes to meet diverse industrial requirements.

3. Real-Time Monitoring & Diagnostics – Monitors voltage, current, and system status with automatic fault diagnostics.

4. Redundancy & Safety Design – High-reliability design ensures safe operation in critical situations.

5. High Compatibility – Compatible with ABB and third-party controllers; supports Modbus RTU communication.

6. Comprehensive Protection – Includes overheat and overcurrent protection and automatic adjustment for extended equipment life.

4. Application Areas

• Large synchronous generator excitation control

• High-power inverters and drive systems

• Heavy industrial equipment control (metallurgy, mining, power systems)

• Energy management and feedback systems

• Power infrastructure and grid stability control

5. Precautions

1. Ensure the module is compatible with the system and connected equipment before installation.

2. Provide a stable 24 V DC power supply to avoid voltage fluctuations.

3. Avoid use in high humidity, corrosive, or high electromagnetic interference environments.

4. Regularly check module operation and output signals to ensure normal system function.

5. Installation and maintenance must be performed by trained professionals; do not disassemble or modify the module.

The structure and details of the product：

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