7-18 Inputs, Outputs, Timers, and Other Control Logic Date Code 990215
SEL-351P Manual Técnico
Another variation to the example application in Figure SECTION 7: .13 and Figure SECTION 7:
.14 that adds more security is a timer with pickup/dropout times set the same (see
Figure SECTION 7: .16 and Figure SECTION 7: .17). Suppose that SV6PU and SV6DO are
both set to 300 cycles. Then the SV6T timer keeps the state of latch bit LT1 from being able to
be changed at a rate faster than once every 300 cycles (5 seconds).
Figure SECTION 7: .16: Latch Control Switch (with Time Delay Feedback)
Controlled by a Single Input to Enable/Disable Reclosing
Figure SECTION 7: .17: Latch Control Switch (with Time Delay Feedback)
Operation Time Line
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