Development of energy consumption monitoring system for machine tools in accordance with ISO14955

This paper presents the development of an energy consumption monitoring program for machine tools, aligning with the international standards of ISO 14955. The program aims to monitor and measure energy usage in real-time, identify energy-intensive components, and ultimately facilitate energy efficiency improvements in the manufacturing industry. The developed system features real-time data integration of energy, pneumatic, ambient temperature and humidity sensor data, along with CNC controller data, allowing for an auto-detection of operating states, providing valuable insights into energy consumption, enabling analysis of energy consumption according to machine behavior. The system was applied to various types of equipment, such as turning centers, milling machines, and automatic lathes. The power consumption ratio for each component was calculated, allowing for the development of targeted energy reduction strategies tailored to each type of equipment. Furthermore, using actual production schedules from a machining company, we calculated the time share in accordance with ISO 14955, enabling accurate monitoring and reporting of energy consumption, and calculating the annual energy consumption based on the time share. Moreover, this study contributes to establishing a benchmark for machine tool energy monitoring in accordance with ISO 14955, thereby encouraging the adoption of similar standards across the industry. A key novelty of this research lies in the comprehensive integration of multiple sensor types (electrical, pneumatic, ambient) with CNC data in real time, strictly adhering to ISO 14955 guidelines by incorporating non-electrical energy sources and automatically detecting operating states. This holistic approach goes beyond common practice in current industrial monitoring systems, providing deeper insights and ensuring standardized energy assessments.