YXO124 4890024-LF Overload Monitor

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	YXO124 4890024-LF
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Description

The ABB YXO124 4890024-LF is a high-precision overload monitor for the TYRAK 8A drive system, designed for real-time monitoring of under-voltage, over-voltage, and phase loss. It ensures the protection of high-power thyristor converters in critical industrial applications.

Applications

Thermal power plants: Monitor the bus voltage status of generator excitation systems or high-voltage substations to ensure stable power conversion.

Large manufacturing plants: Provide voltage safety interlocks for precision CNC machining units or robot clusters to prevent damage to electronic components from grid fluctuations.

Steel smelting plants: Deployed in high-dust, strong magnetic interference environments to provide highly reliable voltage monitoring for large rolling mill drive systems.

Oil refineries: Perform critical loop monitoring in complex distributed control systems (DCS) to ensure power supply safety for equipment in explosion-proof areas.

Rail transit manufacturing plants: Integrated into vehicle traction control or substation monitoring systems to process high-frequency voltage detection data.

Troubleshooting and Maintenance

Troubleshooting:
False Alarms: Check 0–100% calibration. If load is normal, inspect sampling signal for interference (shunt/CT).

Relay Failure: Verify stable 220V supply; check IP54 enclosure for condensation or dust causing contact sticking.

Maintenance Recommendations:
Simulation Test: During overhaul, simulate >100% overload to verify relay and interlock response.

Sealing & Temperature: Ensure operation ≤55°C and maintain IP54 sealing to prevent moisture or corrosive gas intrusion.

FAQ

Q: How to set overload threshold for YXO124 4890024-LF?
A: Set via panel potentiometer or TYRAK software within the 0–100% range.

Q: What current can the relay output of YXO124 4890024-LF handle?
A: For control-level use only; use an intermediate relay for high-power AC contactors.

Q: Does voltage deviation affect YXO124 4890024-LF accuracy?
A: Small deviation is tolerated, but long-term instability may impact internal reference accuracy.

Q: Can YXO124 4890024-LF be installed outdoors with IP54?
A: IP54 is splash/dust resistant only; outdoor use requires an additional protective enclosure.

Q: Why is YXO124 4890024-LF critical in TYRAK 8A systems?
A: It improves detection of transient overloads and distinguishes motor start surges from faults.