Abstract
Power losses are one of many factors affecting the energy effectiveness of production processes, however despite this, commonly investigated ranges of power losses do not explain how they change in the stages being different from a typical driving mode. This investigation focuses on low working conditions of a robot electric motor and the properties of power losses changes while going from a driving mode into a .stand-still mode of electric motor work Apart from determined values of power maps components, this work shows how to manage with technical limitations in performing measurements of industrial robot electrical states at the industrial conditions, like high disturbances, noise and limited range of robot axis angle position.

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