Title:
電力消費機器のフェイルセーフに断路するための装置
Document Type and Number:
Japanese Patent JP6917394
Kind Code:
B2
Abstract:
A safety switching device for the fail-safe disconnection of an external consumer has an internal consumer and switching elements for connecting in parallel the internal consumer with the external consumer. Read-back taps are arranged between the switching elements, a first and second pole of the external consumer, and the internal consumer. A signal processing unit includes a testing device and a memory, in which a first error pattern set is stored. The testing device is coupled to the read-back taps and executes a switching test having a minimum of three temporally-separated test intervals. In each test interval, the testing device receives a read-back signal from each read-back tap in order to generate a first test pattern. To identify a fault, the testing device matches the first test pattern with the first error pattern set.
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Inventors:
Mlavev, Dmitry
Dannenmann, Klaus Jörg
Dannenmann, Klaus Jörg
Application Number:
JP2018562349A
Publication Date:
August 11, 2021
Filing Date:
May 24, 2017
Export Citation:
Assignee:
Pilz Game GmbH and Co. Kahge
International Classes:
H02H3/05; G05B9/02; H01H47/00
Domestic Patent References:
| JP2005501200A | ||||
| JP2016513444A |
Foreign References:
| US20100259862 |
Attorney, Agent or Firm:
Patent Business Corporation Ai Patent Office