ABB FDD-UDD EX144 Simulator Unit

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1. Product Overview

The ABB FDD-UDD EX144 is a high-performance Simulator Unit designed for testing, validating, and simulating digital and analog signals in industrial control systems. It can simulate various input and output conditions, providing a reliable tool for control system commissioning, functional verification, and maintenance. The EX144 is compact, easy to operate, supports high-speed data processing, and multi-channel signal simulation, widely used in power, chemical, automation production lines, and research laboratory environments.

2. Technical Specifications

• Model: FDD-UDD EX144

• Product Type: Simulator Unit

• Input/Output Type: Digital signals, Analog signals

• Signal Channels: 16 digital I/O, 8 analog I/O

• Signal Levels: TTL / 24 V DC (digital), 0–10 V / 4–20 mA (analog)

• Response Time: ≤ 1 ms (digital signals)

• Communication Interfaces: RS485, Ethernet (optional)

• Supply Voltage: 24 V DC

• Operating Temperature: -20 ℃ to +60 ℃

• Degree of Protection: IP20

• Mounting: Panel or DIN rail mount

• Dimensions (Approx.): H 120 mm × W 100 mm × D 50 mm

• Certifications: CE, IEC 61131-2

3. Advantages & Features

1. High-Precision Simulation
   Supports digital and analog signal simulation for comprehensive control system testing.

2. Fast Response
   Digital signal response time ≤ 1 ms, ensuring real-time commissioning and verification.

3. Multi-Channel Design
   Simultaneous multi-channel I/O simulation improves testing efficiency.

4. Industrial Reliability
   Designed to withstand industrial temperature, humidity, and vibration conditions for long-term stable operation.

5. Easy Integration
   Supports RS485 and Ethernet communication interfaces for connection to existing control systems.

6. User-Friendly Operation
   Modular design allows convenient installation, commissioning, and maintenance.

4. Application Areas

The ABB FDD-UDD EX144 Simulator Unit is widely used in:

• Industrial automation control system testing

• DCS/PLC system functional verification and commissioning

• Power system monitoring and protection device simulation

• Chemical and petrochemical process control system testing

• Production line equipment maintenance and fault simulation

• University and research laboratory control system studies

5. Notes & Precautions

1. Ensure power is disconnected before installation to avoid electrical hazards.

2. Simulation signal voltage must be within rated range to prevent damage.

3. Install in a dry, ventilated environment, avoiding dust, moisture, and corrosive gases.

4. Regularly inspect interfaces and communication lines to ensure stable simulation signals.

5. Commissioning and maintenance should be performed by qualified electrical engineers.

6. Avoid long-term operation in strong electromagnetic interference environments; shielding may be required.