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All Journal JTEV (Jurnal Teknik Elektro dan Vokasional ELKHA : Jurnal Teknik Elektro Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Jurnal Penelitian Pendidikan IPA (JPPIPA) Indonesian Journal of Artificial Intelligence and Data Mining KACANEGARA Jurnal Pengabdian pada Masyarakat Mimbar Ilmu Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ JETL (Journal Of Education, Teaching and Learning) Logista: Jurnal Ilmiah Pengabdian Kepada Masyarakat Journal of Vocational Education Studies (JOVES) MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering Journal of Computer Science, Information Technology and Telecommunication Engineering (JCoSITTE) JPTE: Jurnal Pendidikan Teknik Elektro JTEIN: Jurnal Teknik Elektro Indonesia Indonesian Journal Of Educational Research and Review Journal of Industrial Automation and Electrical Engineering
Risfendra, Risfendra
Universitas Negeri Padang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics Social Sciences Transportation Other

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Praktikalitas Training Kits HMI Berbasis Outseal PLC pada Pembelajaran Sistem Kontrol Terprogram Yoga Maulana Putra; Risfendra Risfendra
Jurnal Pendidikan Teknik Elektro Vol 4 No 2 (2023): Jurnal Pendidikan Teknik Elektro
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jpte.v4i2.288

Abstract

The research was carried out with the aim of knowing the practical value of learning media training kits Human Machine Interface (HMI) based on Outseal PLC on programmed control system subjects at SMK Negeri 2 Payakumbuh. The implementation of the research to obtain practicality data comes from assessments conducted by 3 programmed control system subject teachers and 26 class XII Industrial Automation Engineering students. The valuation data collection technique is used by filling out practicality instruments that have previously been validated. The practicality instrument consists of 30 statement items using 5 rating scales. The results of data collection from teachers and students will then be tabulated and a descriptive analysis will be carried out to draw practicality assessment conclusions. The results research conducted revealed that the teacher's assessment of the level of practicality of training kits learning media was in the very practical category. While the results of the assessment conducted by the training kits students have a very practical level of effectiveness. So that it can be concluded that the learning media for HMI training kits based on Outseal PLC are very practical to use in learning programmed control systems for class XII at SMK Negeri 2 Payakumbuh.
Effectiveness of E-Learning-Based Learning in the Era of Digital Transformation: A Meta-Analysis Setyawan, Herlin; Sukardi; Risfendra; Jalinus, Nizwardi; Mardizal, Jonni; Ananda, Gheri Febri
Indonesian Journal of Educational Research and Review Vol. 7 No. 2 (2024): July 2024
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/ijerr.v7i2.76166

Abstract

Amid digital transformation in the 21st century, the use of digital technology, such as e-learning, in the learning process has become urgent to develop vocational school students' knowledge and skills. However, some studies show that online learning is ineffective in improving vocational school students' knowledge and skills. Online learning cannot improve students' vocational skills because the online learning process cannot conduct actual practicum. Therefore, this study aims to analyze the effectiveness of online learning to improve vocational students' knowledge and skills. The research method used was random effect model meta-analysis with Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) article analysis technique. A total of 25 articles from the Scopus, Google Scholar, and Wiley databases were obtained and analyzed in this study. The articles analyzed were free from publication bias, as indicated by the funnel plot, Egger's, and Fail-safe N test results. Based on the meta-analysis results, it is known that the effect size value obtained is 0.703 (medium category). Thus, implementing online learning in vocational schools has a moderate impact on improving vocational students' knowledge and skills. The findings of this study indicate that the implementation of online learning in vocational schools can support the effectiveness of learning in vocational schools and encourage students to develop the knowledge and skills they will master. This research is expected to be the basis for teachers and vocational schools to integrate online learning into the learning process.
Kendali Pid Menggunakan Metode Tuning Zieghler-Nichols I untuk Mengendalikan Kecepatan Motor Berbasis PLC Yefriani, Fitri; Risfendra, Risfendra
Jurnal Teknik Elektro Indonesia Vol 4 No 2 (2023): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v4i2.555

Abstract

Proses penalaan tuning PID seringkali dilakukan dengan cara uji coba akibatnya hasil tuning tidak akurat dan proses penalaannya memakan waktu yang cukup lama. Penelitian ini bertujuan untuk menerapkan metode Zieghler-Nichols I atau metode kurva reaksi yang mampu menghasilkan nilai tuning dengan praktis serta nilai hasil parameter tuning yang baik. Pada penelitian ini menggunakan PLC Siemens S7-300 sebagai pusat kontrol dan HMI Siemens TP-700 Comfort sebagai interface sistem serta menggunakan MS150 Modular Servo sebagai media kendali PID. Penelitian ini dilakukan dengan dua cara. Pertama, pengujian pembacaan tegangan pada sensor tachogenerator. Kedua, pengujian respon sistem dari kendali PID. Pada pengujian pertama didapatkan hasil dengan nilai error tertinggi pada nilai 0.029%. Pengujian kedua didapatkan performa dari respon sistem Kp=1.125, Ti=2.667, dan Td=0 dengan hasil terbaik pada setpoint 3000 rpm, waktu rise time 3 detik, delay time 1 detik, settling time 7 detik serta tanpa adanya overshoot pada sistem. Dapat disimpulkan bahwa nilai tuning dengan menggunakan metode Zieghler-Nichols I lebih praktis dan menghasilkan respon sistem cukup stabil dengan performa yang baik.
Cycle Time Analysis Of AS/RS (Automated Storage & Retrieval System) Using SCADA Fahreza, Dadang Suriana; Risfendra, Risfendra
Jurnal Teknik Elektro Indonesia Vol 5 No 1 (2024): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v5i1.647

Abstract

AS/RS is not just a replacement for conventional warehouses, but has become a key element in modern manufacturing systems. However, in its use there are still problems and shortcomings, including the unavailability of a system that can control, supervise, and acquire data from AS/RS and the cycle time when AS/RS performs data storage and retrieval tasks is still below industry standards. To overcome this, a system that is generally called SCADA (Supervisory, Control, and Data Acquisition) is needed. This research uses Arduino Mega 2560 as an AS/RS controller, while the VTSCADA application is used to build a SCADA system on AS/RS. This research uses two approaches. First, calculating the AS/RS cycle time when performing storage and retrieval tasks. Second, comparing the cycle time of the storage system and the retrieval system. The first test results show that the fastest cycle time in the storage system occurs at storage rack point 1 with a time of 3.17 seconds, while the fastest cycle time in the retrieval system occurs at retrieval point 1 with a time of 12.74 seconds. The second test resulted in a difference in cycle time between the storage and retrieval systems, namely 0.42 seconds at storage point 1, 0.38 seconds at storage point 2, 0.51 seconds at storage point 3, 0.31 seconds at storage point 4, and 0.43 seconds at storage point 5. It can be concluded that the application of SCADA to AS/RS is able to increase the cycle time of AS/RS.
Improving the Accuracy of Manual Control of an Automatic Guided Vehicle (AGV) Robot by Applying the Proportional Integral Derivative (PID) Algorithm Apsada, Satria; Risfendra, Risfendra
Jurnal Teknik Elektro Indonesia Vol 5 No 2 (2024): JTEIN: Jurnal Teknik Elektro Indonesia
Publisher : Departemen Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jtein.v5i2.676

Abstract

Robot Automated Guided Vehicle (AGV) pada umumnya dapat bergerak secara autonomous dan manual. Kendali manual robot Automated Guided Vehicle (AGV) dibutuhkan ketika kendali autonomous sedang tidak digunakan. Kebutuhan untuk kontrol manual pada AGV dapat disebabkan oleh kegagalan sistem otomatis atau untuk situasi di mana operator perlu intervensi langsung untuk keamanan atau tugas yang memerlukan keputusan manusia. Tetapi dalam pengendalian manual robot memiliki nilai deviasi terhadap gerak lurusnya, sehingga mempengaruhi kinerja robot dan menjadikannya semakin sulit dikendalikan. Tujuan penelitian ini untuk meningkatkan performa sistem kontrol manual robot Automated Guided Vehicle (AGV) dengan menggunakan algoritma PID (Proportional Integral Derivative) metode Ziegler Nichlos I atau metode kurva reaksi yang mampu menghasilkan nilai tuning dengan praktis sehingga robot AGV dapat melakukan gerak lurus dengan akurasi yang lebih baik. Penelitian ini terdiri dari tahapan analisis, pengodean dan pengujian robot. Pada penelitian ini menggunakan sensor rotary encoder dengan motor DC PG45 dan dikendalikan mikrokontroler Arduino Atmega 2560 serta kontroler joystick wireless. Penggunaan kendali manual digabungkan dengan Algoritma PID metode Ziegler-Nichols I dengan nilai Kp=0,45; Ki=0,3 dan Kd=0 untuk Motor 1 dan Motor 2 dengan nilai Kp=0,5; Ki=0,15 dan Kd=0 yang dikombinasikan dengan sensor rotary encoder. Hasil pengujian menunjukkan peningkatan kinerja kendali robot AGV dengan nilai ketepatan jarak tempuh dari 3(tiga) meter menjadi 12(dua belas) meter gerak dapat mendekati lintasan lurus.
The Effectiveness of Outseal Programmable Logic Controller-based Training Kit to Improve Vocational High School Students' Control System Skills Setyawan, Herlin; Sukardi; Risfendra; Effendi, Hansi; Syahril
Mimbar Ilmu Vol. 29 No. 2 (2024): August
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/mi.v29i2.76065

Abstract

The problem in this study is that many students still have not mastered the skills of PLC-based control systems in accordance with the learning objectives. This is because the learning media is only a simulation using buttons and pilot lights without using the original components. The aims of this study is to examine and reveal the effectiveness of the outseal PLC-based PLC training kit in improving students' practical skills in PLC-based control systems. Pre-experiment one group pre-test and post-test is the research methodology used in this study, with a research sample of 32 students from the electrical power installation engineering department vocational school. The research data were collected using a skill assessment questionnaire and analyzed using paired sample t-test analysis technique and effect size test. The results revealed that the t-value obtained was 7.915 with a significance of 0.000 and a value of d = 1.701. These results show differences in students' skills after and before using the training kit that is applied and proven to improve student skills significantly. Thus, it is proven that this training kit effectively improves vocational students' skills. Based on these results, vocational high schools are expected to apply this training kit to facilitate learning and improve students' PLC-based control system skills.
Enhanced Fashion-MNIST Classification Using a Hybrid VGG-16-DenseNet121 Architecture Ananda, Gheri Febri; Risfendra, Risfendra; Wahyudi, Eko
Indonesian Journal of Artificial Intelligence and Data Mining Vol 8, No 1 (2025): March 2025
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ijaidm.v8i1.32225

Abstract

This study aims to explore the effectiveness of a hybrid model combining the VGG16 and DenseNet121 architectures for image classification tasks on the Fashion MNIST dataset. This model is designed to leverage the advantages of both architectures to produce richer feature representations. In this study, the performance of the hybrid model is compared with several other architectures, including LeNet-5, VGG-16, ResNet-20, ResNet-50, EfficientNet-B0, and DenseNet-121, using various optimizers such as Adam, RMSProp, AdaDelta, AdaGrad and SGD. The test results indicate that the Adam and SGD optimizers deliver excellent results. The VGG16 + DenseNet121 hybrid model achieved perfect training accuracy 100%,  the highest validation accuracy 94.65%,  and excellent test accuracy 94.16%. Confusion matrix analysis confirms that this model is capable of correctly classifying the majority of images, although there is some confusion between classes with visual similarities. These findings affirm that a hybrid approach and the appropriate selection of optimizers can significantly enhance model performance in image classification tasks.
Peningkatan Kompetensi Otomasi Mesin Industri menggunakan Human Machine Interface (HMI) untuk Guru Vokasi Sardi, Juli; Habibullah, Habibullah; Eliza, Fivia; Risfendra, Risfendra; Hendra, Ayu; Setyawan, Herlin
Jurnal Pendidikan Teknik Elektro Vol 6 No 1 (2025): Jurnal Pendidikan Teknik Elektro
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jpte.v6i1.530

Abstract

The enhancement of teachers' competencies in industrial automation technology is urgently needed to address the challenges of Industry 4.0. This study aims to measure the effectiveness of the training program Industrial Machine Automation Using Human Machine Interface (HMI) in improving teachers' competencies at SMK Negeri 5 Solok Selatan. The research employed a One Group Pre-test Post-test Design method, with data analysis conducted using the Paired Sample T-Test. A total of 20 teachers participated in the training, which consisted of theoretical sessions, software simulations, and hands-on practice with HMI hardware. The results indicated a significant improvement in participants' competencies, with the average score increasing from 55 in the pre-test to 83.25 in the post-test (p<0.05). The training effectively strengthened participants' conceptual understanding, programming skills, and troubleshooting abilities. Furthermore, the program was deemed relevant to the technological needs of vocational education, supporting the integration of automation technology into the vocational school curriculum. This study concludes that HMI training can serve as a strategic model for teacher competency development, contributing to improving vocational education quality. Recommendations include conducting advanced training sessions, enhancing collaboration with industry, and developing project-based curricula oriented toward modern technologies.
Peningkatan Produktifitas Teaching Factory Industrial Robotic and Automation sebagai Pusat Inovasi Peralatan Laboratorium Pendidikan Vokasi Risfendra, Risfendra; Sukardi, Sukardi; Sardi, Juli; Habibullah, Habibullah; Hendra, Ayu; Setyawan, Herlin
Jurnal Pendidikan Teknik Elektro Vol 6 No 1 (2025): Jurnal Pendidikan Teknik Elektro
Publisher : Jurusan Teknik Elektro Fakultas Teknik Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jpte.v6i1.531

Abstract

The Teaching Factory Industrial Robotics and Automation ( TEFA IRA) at Universitas Negeri Padang (UNP) represents an innovative vocational education model integrating practice-based learning with real-world production activities. As an innovation hub, TEFA IRA produces laboratory equipment to support vocational learning, trains vocational high school (SMK) teachers, and enhances student competencies to meet the workforce's demands in the Fourth Industrial Revolution era. This study evaluates the productivity of TEFA IRA by analysing operational processes, the impact of teacher training, student learning experiences, product relevance, and collaboration with industry partners. The research employs a mixed-methods approach, combining qualitative and quantitative techniques with data collected through observation, interviews, surveys, and document analysis. The results indicate that TEFA IRA successfully produced 25 units of laboratory equipment with a 92% success rate. Training for SMK teachers improved their technology mastery scores from 3.2 to 4.1 (on a 5-point scale), while 90% of students reported that their learning experiences were relevant to workforce demands. Collaboration with industry partners reached an active involvement rate of 87%, including contributions to technology and technical training. However, TEFA IRA faces challenges, such as limited specialised expertise, the need for updated training modules, and the optimisation of facilities. Support from Universitas Negeri Padang is essential to address these challenges through strategic policies, facility enhancements, and strengthened industry partnerships. Overall, TEFA IRA has successfully established itself as an innovative and relevant Teaching Factory model for vocational education in Indonesia. This program holds significant potential to be further developed as a pioneer in technology-driven vocational education with global competitiveness.
Impact of Using Electro-pneumatic Training Kit on Improving Industrial Control System Skills of Vocational High School Students Setyawan, Herlin; Sukardi, Sukardi; Rahayu, Wiwik; Risfendra, Risfendra; Jalinus, Nizwardi; Mardizal, Jonni
Journal of Vocational Education Studies Vol. 8 No. 1 (2025): Vol 8 No 1
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/joves.v8i1.9449

Abstract

Practical learning using simulation applications makes students unable to create natural industrial control systems, so the impact of the immaturity of practical skills that students must master becomes a problem in this study. Using simulation applications, students are only faced with ideal conditions and symbols of each component, so students cannot know the actual components of an industrial control system and how to solve real problems in this system. This study aims to examine the impact of using electro-pneumatic training kits in an industrial control system practicum. The actual experimental research method used in the study consisted of an experimental class with 28 students and a control class of 25 people. Data collection techniques used skill assessment rubrics with data analysis techniques, including independent t-tests and effect sizes. The results revealed a significant difference in the skills of experimental class students with the control class, where experimental class students had better skills. From the results of the effect size test, it is known that the electro-pneumatic training kit significantly improves students' industrial control system skills. Based on these results, the electro-pneumatic training kit proved to be a transformational educational tool, significantly improving students' skills in industrial control systems. The implication of this study is for schools to integrate technology-based training tools such as electro-pneumatic training kits; vocational education can provide practical experience that is more relevant to industry needs, improve students' work readiness, and strengthen technical skills that are urgently needed in today's modern job market and industrial world.
Co-Authors Abdul Hakim Abdullah, MT, Dr. Rijal Achmad Iqbal Adi Gumelar Bagaskara Adrianto, Raihan Nanda Agung Tri Putra Al Amin Aldo Aulia Akbar Alfirdaus Alfirdaus Alham Ali Ali Basrah Pulungan Alphin Stephanus Alvendri, Dio Ambiyar, Ambiyar Anak Agung Gede Sugianthara Ananda, Gheri Febri Apsada, Satria Asfinaldi, Asfinaldi Aslimeri, Aslimeri Danni Maulana Ikhsan Darni , Resmi Dasril Aldo Defri, Defri Doli Hasbi Simanjuntak Dwi Sudarno Putra Eko Solihin EKO WAHYUDI Fadjri Khairul Fahmi Rizal Julianto Fahreza, Dadang Suriana Febrianto, Fauzan Firda Ayu Atma Novita Fivia Eliza Fuji Widia Gheri Febri Ananda Gilang Sandhika Putra Gozy Hermana Habibullah Habibullah Hambali Hambali Hambali Hambali Hansi Effendi Hariyadi Hariyadi Hendra, Ayu Herlin Setyawan Herris Yamashika Ida Ayu Putu Sri Widnyani Irma Husnaini isnawati isnawati Jalal, Rifka Jayasri Iniko Wirefa Juli Sardi Juni Juni Khairunnas Khairunnas M Harun Rosyid M. Giatman Mardizal, Jonni Miftahul Jannah Muhamad Fajri Muhammad Adri Muldi Yuhendri Muskhir, Mukhlidi Niswardi Jalinus Nizwardi Jalinus Nursalam, Rapis Nurwijayanti Oktavia, Vivi Pandu Aldhareva Parmanoan, Durain Prayoga, Noval Purnama, Eko Putri, Meri Yulianti Rafika Silfia Rahmi Okta Tri Putri Rasyid, Hambali Reka Elsa Putra Ricky Maulana Rio Bina Guna Rudi Mulya Setyawan, Herlin Seven Fri Simanullang, Aldi Solly Aryza Sonia Anjeli Sukardi Sukardi Sukardi, Sukardi Syahril Taali, Taali Tari Pujiati Tito Ardi Ardiansyah Tomi Kurniawan Valendi, Ihsan Riga Veithzal Rivai Zainal Vikry Alvi Putra Waradzi Mustakim Wulansari , Rizky Ema Wulansari, Rizky Ema Yefriani, Fitri Yoga Maulana Putra