Control method to limit the driving force of a drive, in particular for a door or a swinging wing and associated security circuit
In order to create an improved control method for limiting the drive force of a drive, especially of a door drive or rotary wing drive, and to create an associated safety circuit which, with a very much higher level of safety, precludes the production of excessively high drive forces and moments, a...
Gespeichert in:
1. Verfasser: | |
---|---|
Format: | Patent |
Sprache: | eng ; fre ; ger |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | In order to create an improved control method for limiting the drive force of a drive, especially of a door drive or rotary wing drive, and to create an associated safety circuit which, with a very much higher level of safety, precludes the production of excessively high drive forces and moments, a redundant safety circuit is provided for calculating the torque of an electric motor. The torque is in this case normally calculated once for the electrical DC motor, from the current intensity. The torque is determined independently of this from the electric motor set of characteristics, using the rotation speed and the setting for full-load operation or partial-load operation of the electric motor. In the event of a discrepancy between the values, a suitable current-limiting circuit or interruption circuit can be activated. |
---|