Safety Relay Circuit
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United States of America Patent
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Issued Date -
Jan 15, 2015
app pub date -
Mar 12, 2013
filing date -
Mar 13, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Safety relay circuit, in particular, comprising two series-connected or parallel-connected relay switches (k1, k2) in a load current circuit (LN). The relay switch (k1) is assigned a switch position indicator circuit (A1). An evaluation circuit compares the command input to the relay (k1) with the display of the indicator circuit (A1), so that any fault states that may occur at the relay switches can be detected.
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