Control method for a door drive and door drive
AssigneeMarantec Antriebs-und Steuerungstechnik GmbH & Co. KG
InventorMICHAEL HÖRMANN
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Abstract
The invention relates to a method of controlling a door drive having a plurality of components which are communicatively connected to one another via a digital bus system, wherein at least one component is a safety component which reports the occurrence of a safety-relevant event over the data bus, and wherein the bus protocol reserves a cyclic safety phase for reporting a safety-relevant event and at least one component recognizes an undefined data transmission during the safety phase as a report of a safety-relevant event.
Claims11
A method for controlling a door drive having a plurality of components which are communicatively connected to one another over a digital bus system, wherein at least one component is a safety component which reports the occurrence of a safety-relevant event over the data bus,
- characterized in that
- the bus protocol reserves a cyclic safety phase for reporting a safety-relevant event and at least one component recognizes each data transmission over the bus system during the safety phase as a report of a safety-relevant event.
A method in accordance with any one of the preceding claims, characterized in that each component checks whether a data transmission is already taking place over the bus during the safety phase before the transmission during the safety phase and optionally discards and/or interrupts its own transmission process and/or postpones it to a later time.
A method in accordance with any one of the preceding claims, characterized in that at least one safety component transmits a safety telegram during the safety phase which preferably includes sender information, in particular information with respect to the device type of the transmitting safety component, after occurrence of at least one safety-relevant event.
A method in accordance with any one of the preceding claims, characterized in that at least one component, in particular the bus master, determines the sender of the transmitted data during the safety phase after the recognition of the report of a safety-relevant event, in particular by evaluation of the safety telegram, with optionally a suitable response of the door drive being defined on the basis of the sender information.
A method in accordance with any one of the preceding claims, characterized in that the communication possibility over the data bus is maintained after the report of a safety-relevant event, i.e. a data transmission during the safety phase.
A method in accordance with any one of the preceding claims, characterized in that the motor of the door drive is stopped and/or reversed on recognition of a safety-relevant event.
A method in accordance with any one of the preceding claims, characterized in that the transmission process of a safety component transmitting during the safety phase is repeated for so long until the safety component is addressed by the bus master.
A control system for a door drive having a plurality of components which are communicatively connected to one another via a digital bus system for carrying out the method in accordance with one of the preceding claims.
Dependencies are inferred from the claim text.