TITLE
DEVELOPMENT OF AN EXPERIMENTAL TEST BENCH FOR INVESTIGATION AND ADJUSTMENT OF THE OPERATING MODES OF THE VACON® 20 FREQUENCY CONVERTER IN VARIOUS
APPLICATIONS
AUTHOR(S)
Denis Petkov Petkov*, Prodan Ivanov Prodanov
ABSTRACT
This paper presents a laboratory investigation of the VACON® 20 variable frequency drive (VFD) on a dedicat-ed test stand. The stand employs a cone‑rotor asynchronous motor (asynchronous cone motor) with a disc brake to provide adjustable mechanical load, a VACON 20 (1.1 kW) inverter, an external I/O control panel with selec-tor switches and status lamps, and a USB adapter for VACON Live software. The methodology covers motor nameplate parameterization, communication setup, and three operating modes: AI1 analog reference (0–10 V
potentiometer), preset fixed speeds via digital inputs, and motorized potentiometer (UP/DOWN). Results show reproducible frequency/current responses under no‑load and loaded conditions with safe ramp dynamics. The study offers a structured workflow for education and commissioning of VFD‑driven cone‑rotor asynchronous motor systems.
DOI
DOWNLOAD
https://unitech.tugab.bg/images/2025/dokladi/2-Electronics%20and%20Sensors/p249_s2_u23_id467.pdf
How to cite this article:
Denis Petkov Petkov*, Prodan Ivanov Prodanov, DEVELOPMENT OF AN EXPERIMENTAL TEST BENCH FOR INVESTIGATION AND ADJUSTMENT OF THE OPERATING MODES
OF THE VACON® 20 FREQUENCY CONVERTER IN VARIOUS APPLICATIONS, UNITECH – SELECTED PAPERS - 2025