| 摘要 |
An electrically operated installation and method has a plurality of electrical loads, in which the event of a failure of a basic supply voltage the electrical loads are supplied by a backup voltage, wherein a power supply unit exchanges data with several loads via a field bus, the loads each have a software module for communication via the field bus, a software module of a load is configured as a master and the software modules of the other loads are configured as slaves, the power supply unit as a communication partner of the master controls a regulated shutdown procedure of the loads, in the event of a failure of the basic supply voltage the power supply unit reports this to the master via the field bus, and the master and the software modules of the loads perform the shutdown procedure in configurable synchronization stages. |
| 主权项 |
1. A method for operating an electrical installation having a plurality of electrical loads which are connected to a basic supply voltage and, in an event of the basic supply voltage failing, are connected to a backup voltage, in order to safeguard the supply to the electrical loads for a duration of a backup phase, the backup voltage being provided via an uninterruptible power supply unit, the method comprising:
connecting the power supply unit to the plurality of electrical loads via a field bus to exchange data; providing each of the plurality of electrical loads with a software module which is integrated into communication via the field bus; appointing the software module of at least one load of the plurality of electrical loads as a master and other software modules of other loads of the plurality of electrical loads as slaves within a context of master-slave communication; establishing a master in the power supply unit as a communication partner for performance of a regulated shutdown procedure of the plurality of electrical loads; providing, in an event of a failure of the basic supply voltage a notification from the power supply unit to the master of said failure via the field bus and launching a regulated shutdown procedure as a result of the failure, the shutdown procedure occurring in configurable synchronization stages; storing, by a relevant software module for each load of the plurality of loads, whether the load should maintain or change its energy state for each of the configurable synchronization stages and, if several energy state changes are possible and provided for, to which energy state the load should change; signaling, by the master, each of the synchronization stages consecutively to the plurality of loads; executing the energy state changes of the plurality of loads stored in the software modules for the respective synchronization stage; and reporting, by a corresponding software module, after each execution to the master. |
