DOI: https://doi.org/10.19184/berkalafstpt.v2i1.895

Keywords: Current, FFT, turnout motor T84M, gear, voltage

ABSTRACT

The point machine is very important for changes in the direction of the train, which affects the service and safety of the train. Checking the T84M point machine manually is time consuming and human error prone. Maintenance includes checking gears, current, and motor voltage. Gear damage and currents and voltages exceeding tolerance limits cause performance problems in point machines. This study aims to create an innovative prototype for early fault detection and easier maintenance. Gear vibration data processed using the ADXL345 sensor with the FFT method shows a significant difference. Normal gears have amplitude <1066 m/s², wear ≥1066 m/s², broken gears have ≥1960 m/s². Testing of the PZEM-004T sensor was satisfactory, with a current error of 0.01% and a voltage error of 0.004%. This sensor is suitable for monitoring the motor output current and voltage. Sensor readings during monitoring of motor current and voltage reveal patterns during operation.