Schweitzer Engineering SEL-351P, Quick Start Manual

Page: 143 / 674

Date Code 990215 Factory-Set Logic 1-47
SEL-351P Manual Técnico
Time delay PB9D
Corresponding
Relay Word Bit
Output
PB9
ABRIR
operator control
pushbutton
Pressed momentarily
for random length of
time
The corresponding RELIGADOR ABERTO LED flashes during the timing of time delay
PB9D. This flashing indicates a pending pulsing of Relay Word Bit PB9, regardless of the
setting of corresponding SEL
OGIC
Control Equation setting LED9.
If the ABRIR operator control pushbutton is pressed again (or the FECHAR operator control
pushbutton is pressed) while PB9D is timing, the RELIGADOR ABERTO LED stops flashing,
PB9D stops timing, and Relay Word Bit PB9 is not pulsed. The pending trip operation is
aborted. The RELIGADOR ABERTO LED returns to its regular operation, per SEL
OGIC
Control Equation setting LED9 (see Figure 1.32).
It time delay setting PB9D is set PB9D=0 (no time delay), then Relay Word Bit PB9 functions
in a manner similar to Figure 1.33.
Pulses to logical 1
for one processing
interval (1/4 cycle)
DWG: MP351P026
Figure SECTION 1: .36 : ABRIR Operator Control Pushbutton Output
Corresponding Operator Control LEDs and Logic Applications
Figure SECTION 1: .31 and Figure SECTION 1: .32 list corresponding figures that detail
operator control LED operation and logic applications. Note that the pushbutton output
corresponds number-wise to the LED setting – for example:
TERRA HABILITADO operator control pushbutton output: PB1
TERRA HABILITADO LED SEL
OGIC
Control Equations setting: LED1