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All Journal Indonesian Journal of Electrical Engineering and Renewable Energy (IJEERE)
Son, Putut
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Environmental Science

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Algoritma Pemrograman Berbasis MCS-51 Untuk Simplifikasi Rangkaian Driver Alphanumeric-Liquid Crystal Display(LCD): Programming Algorithm on MCS-51 for Alphanumeric Liquid Crystal Display(LCD) Simplified Driver Circuit Son, Putut; Susianti, Elva
Indonesian Journal of Electrical Engineering and Renewable Energy (IJEERE) Vol 2 No 1 (2022): IJEERE Juni 2022
Publisher : Institut Riset dan Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (362.315 KB) | DOI: 10.57152/ijeere.v2i1.205

Abstract

Wiring between microcomputer(minimum system either microcontroller) and alphanumeric LCD on 8 bit standart mode requires 11 pins. Assignment on large number of I/O pins designated for LCD interfacing is inefficient and unsuitable when applied for compact microcontroller AT89C2051 which has only 15 I/O pins. Interfacing to LCD can be simplified using I2C LCD KIT with additional cost and reconfiguring the functionality of I/O as consequences. The availability of library as a driver program on IDE compiler is uncertain since there are many brands compete on microcomputer as their product. This research exhibits serial to parallel method to simplify and save I/O resources utilizing a digital 74595 functional logic into a script of program to drive and communicate with LCD. The algorithm was tested on VSM Proteus application program and result shows a good agreement between design and visualization.This study has shown that the wiring technique and algorithm works well yielding 72.2% more efficient compared to standard wiring.
Valuation and Action Recommendations on the Control Panel of PT Bukaka Teknik Utama Duri's Pumping Unit Using Failure Mode and Effect Analysis (FMEA) : Valuasi dan Rekomendasi Tindakan Pada Panel Kontrol Pumping Unit PT Bukaka Teknik Utama Site Duri Menggunakan Failure Mode and Effect Analysis(FMEA) Son, Putut; Miratul Ansyari, Alif; Susianti, Elva
Indonesian Journal of Electrical Engineering and Renewable Energy (IJEERE) Vol 5 No 2 (2025): JEERE June 2025
Publisher : Institut Riset dan Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57152/ijeere.v5i2.2459

Abstract

PT Bukaka Teknik Utama Site Duri is a company engaged in the oil and gas equipment sector and collaborates with PT Chevron Pacific Indonesia in managing sucker rod pump type pumping units for crude oil extraction processes. The pumping units are powered by 75 HP electric motors that are controlled and monitored through a control panel. The control panel plays an important role in maintaining operational reliability and safety as it is equipped with various protection components, such as overload, over voltage, over current, and thermal protection. However, based on operational data, there are still control panel malfunctions that cause pump operations to stop and daily oil production targets to not be achieved, as well as increasing the risk of damage to the drive motor. This study aims to conduct a risk assessment and provide recommendations for improvements to the pumping unit control panel using the Failure Mode and Effect Analysis (FMEA) method. The FMEA analysis results show that the contactor and overvoltage components have the highest risk levels, while the fuse and MCB have the lowest risk levels. The recommended actions include replacing components with higher specifications and implementing preventive measures such as repairing the grounding system and adding protection against moisture and dust. The implementation of these recommendations is expected to reduce the failure rate and improve the reliability of the control panel in the next operational period.
Co-Authors Miratul Ansyari, Alif Susianti, Elva