ABB 4890024-LF YXO 124 Overload Monitor

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ABB 4890024-LF (YXO124) Overload Monitor

1. Product Overview & Specifications

• Model / Part Number: 4890024-LF, YXO124

• Type / Function: Overload Monitor Module

• Main Purpose: Monitors motor or system load to detect overload or fault and issue alarm or protection signal

• Rated Supply Voltage: 24 V DC (typical for industrial control)

• Output Type: Digital output / relay contact alarm

• Alarm Conditions: Overload condition (threshold configurable per system)

• Response Time: Fast response (typically few milliseconds)

• Isolation: Input-to-output electrical isolation for safety and interference rejection

• Operating Temperature: 0°C to +55°C

• Mounting: DIN rail or cabinet installation

• System Compatibility: Designed for integration with ABB drives, PLCs, and automation systems for load protection

2. Advantages & Key Features

1. Real-Time Overload Monitoring
   Quickly detects overload conditions in motors or loads and helps prevent damage.

2. High Safety
   Relay output plus electrical isolation reduces risk of false trips and increases system safety.

3. Strong Noise Immunity
   Isolation and design help resist electromagnetic interference in industrial environments.

4. Compact and Install-Friendly
   DIN rail or panel mounting offers flexibility for integration and maintenance.

5. Seamless ABB Integration
   Works smoothly with ABB drives and PLCs for unified load monitoring.

6. Clear Status Indication
   Provides alarm indication via relay and/or status LED, allowing quick fault recognition.

3. Typical Application Areas

• Motor drive systems (pumps, fans, compressors)

• Automation production line load monitoring

• Process industries (chemical, pharmaceutical, water treatment) for motor protection

• Control cabinet load and power management

• Robotics and material handling systems for overload protection

4. Precautions & Usage Notes

1. Set Alarm Threshold Properly
   Configure overload trip point based on motor or system rated load.

2. Maintain Stable Power Supply
   Use a clean 24V DC supply; avoid voltage fluctuations that may cause false alarms.

3. Observe Installation Conditions
   Avoid installing in high humidity, high temperature, or high vibration areas; ensure proper ventilation.

4. Correct Wiring
   Ensure correct input and output wiring to prevent misconnection or false alarm.

5. Periodic Testing & Maintenance
   Regularly test the monitor’s response and alarm functionality to ensure protection remains effective.

The structure and details of the product：

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