Trifonov T, Hadzhiivanov H. SOLVING A SPECIFIC PROBLEM WHEN COMMISSIONING AN AUTOMATIC PRESSURE CONTROL SYSTEM USING SIEMENS SINAMICS V20 FREQUENCY CONVERTER: SOLVING A SPECIFIC PROBLEM WHEN COMMISSIONING AN AUTOMATIC PRESSURE CONTROL SYSTEM USING SIEMENS SINAMICS V20 FREQUENCY CONVERTER. JSAR [Internet]. 2025 Nov. 14 [cited 2025 Dec. 6];28(1):252-7. Available from: https://jsar.ftn.shu.bg/ojs-3.3.0-7/index.php/jsar/article/view/443