Schweitzer Engineering SEL-351P, Quick Start Manual

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7-38 Inputs, Outputs, Timers, and Other Control Logic Date Code 990215
SEL-351P Manual Técnico
This results in the display of corresponding text setting DP2_1 on the front-panel display:
BREAKER CLOSED
Circuit Breaker Open
In Figure SECTION 7: .28, optoisolated input IN101 is deenergized when the 52a circuit breaker
auxiliary contact is open, resulting in:
DP2 = IN101 = logical 0
This results in the display of corresponding text setting DP2_0 on the front-panel display:
BREAKER OPEN
Additional Settings Examples
Display Only One Message
To display just one screen, but not its complement, set only one of the text settings. For
example, to display just the “breaker closed” condition, but not the “breaker open” condition,
make the following settings:
DP2 = IN101 (52a circuit breaker auxiliary contact connected to
input IN101 – see Figure SECTION 7: .28)
DP2_1 = BREAKER CLOSED (displays when DP2 = logical 1)
DP2_0 = (blank)
Circuit Breaker Closed
In Figure SECTION 7: .28, optoisolated input IN101 is energized when the 52a circuit breaker
auxiliary contact is closed, resulting in:
DP2 = IN101 = logical 1
This results in the display of corresponding text setting DP2_1 on the front-panel display:
BREAKER CLOSED
Circuit Breaker Open
In Figure SECTION 7: .28, optoisolated input IN101 is deenergized when the 52a circuit breaker
auxiliary contact is open, resulting in:
DP2 = IN101 = logical 0