Schweitzer Engineering SEL-351P, Quick Start Manual

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1-44 Factory-Set Logic Date Code 990215
SEL-351P Manual Técnico
Corresponding
Relay Word Bit
Output
PB1
TERRA HABILITADO
operator control
pushbutton
Pressed momentarily for
random lengths of time
Figures 1.31 and 1.32 list other operator control pushbuttons that operate similarly to the
above detailed TERRA HABILITADO operator control pushbutton and corresponding Relay
Word bit PB1.
Pulses to logical 1
for one processing
interval (1/4 cycle)
DWG: MP351P023
Figure SECTION 1: .33: TERRA HABILITADO Operator Control Pushbutton
Output
Other operator control pushbutton outputs operate similarly to TERRA HABILITADO
The following operator control pushbutton outputs operate similarly to the TERRA
HABILITADO operator control pushbutton output described in Figure SECTION 1: .33
(corresponding Relay Word bits PB2, PB3, PB4, PB6, and PB7 assert to logical 1 immediately
for one processing interval when the operator control pushbutton is pressed momentarily):
RELIGAMENTO HABILITADO (PB2) SEF HABILITADO (PB6)
REMOTO HABILITADO (PB3) PROTEÇÃO BLOQUEADA (PB7)
AJUSTES ALTERNATIVOS (PB4)
BLOQUEIO Operator Control Pushbutton Output
Figure SECTION 1: .34 describes the output of the unique BLOQUEIO operator control
pushbutton. Note the need to press the BLOQUEIO operator control pushbutton continually for
three seconds until Relay Word bit PB5 asserts to logical 1 for one processing interval.
The corresponding BLOQUEIO LED (controlled by SEL
OGIC
setting LED5) is independent of
the BLOQUEIO operator control pushbutton, unless the BLOQUEIO operator control
pushbutton is pressed for the three seconds (and the LED flashes), as described in
Figure SECTION 1: .34.