Method for operating an adjusting driving mechanism for controlling armatures has a frequency transformer feeding an electric motor to adjust an armature with a preset torque by using an irreversible gearbox.

摘要

An adjusting driving mechanism (1) has a frequency transformer feeding an electric motor (11) to adjust an armature (16) with a preset torque by using an irreversible gearbox (12). To protect the adjusting driving mechanism from unacceptable, destructive heating during operation in an installation at excessive temperatures, its running temperature is measured and its RPMs are reduced under a regular torque by relying on the measured temperature.