Circuit arrangement for switching inverter devices
AssigneeFronius International GmbH
InventorsFlorian Gerstlacher, Franz Fischereder, Stefan Breuer, Thomas Grabner
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Abstract
Circuit arrangement 1 for securely switching inverter devices 2 of a system by a common emergency switch 3 which is connected to a switching signal input 4 of one of the inverter devices 2 which is configured as a master of the system and comprises a switching signal output 5, other inverter devices 2 of the system configured as a slave being connected to the one inverter device via switching signal lines 6, wherein the inverter devices 2 configured as a slave together with the inverter device 2 configured as a master form a switching chain which is automatically switched upon actuation of the emergency switch 3.
Claims15
A circuit arrangement for securely switching a plurality of inverter devices of a system by a common emergency switch which is connected to a switching signal input of a first one of the plurality of inverter devices which is configured as a master of the system by means of a configuration switch provided on the first one of the plurality of inverter device and which comprises a switching signal output, other inverter devices of the plurality of inverter devices configured as a slave by means of configuration switches being connected downstream of the first one of the plurality of inverter devices in a chain-like manner via switching signal lines, wherein the other inverter devices configured as a slave together with the first one of the plurality of inverter devices configured as a master form a switching chain which is automatically switched via the switching signal lines in a cascade-like manner upon actuation of the emergency switch.
An inverter device for a system having an emergency switch and a plurality of such inverter devices, wherein each inverter device comprises:
- a switching signal input configured for connecting to either the emergency switch of the system or a switching signal output of another of the plurality of inverter devices of the system;
- a switching signal output configured for connecting to a switching signal input of another of the plurality of inverter devices of the system;
- and
- configuration switch configured and operable to configure a first one of the plurality of inverter devices as a master of a switching chain of the system upon connection of the emergency switch to said switching signal input of the first one of the plurality of inverter devices, which chain comprises the inverter device configured as a master and all of the other inverter devices of the plurality of inverter devices connected downstream thereof in a chain-like manner at the switching signal output of each of the plurality of inverter devices via switching signal lines, the configuration switch further configured and operable to configure each of the other inverter devices as a slave, wherein the entire switching chain, upon actuation of the emergency switch connected to the switching signal input of the inverter device configured as a master, is automatically switched in a cascade-like manner via the switching signal lines.
Dependencies are inferred from the claim text.