Date Code 990215
Factory-Set Logic
1-53
SEL-351P Manual Técnico
The active setting group designation is non-volatile (retained if the SEL-351P is powered down
and then powered up again, i.e., returns to the same active setting group).
AJUSTES ALTERNATIVOS
operator control pushbutton
(pulsed output - see Figure
1.33)
BLOQUEIO operator
control OFF (see
Figure 1.44)
Setting Group 1 is the
active setting group
"Select
Setting
Group"
SEL
OGIC
Settings
SS1
(go to Setting Group 1
- main setting group)
DWG: MP351P033
Relay
Word
Bits
PB4
LT4
SG1
AJUSTES
ALTERNATIVOS
operator control
LED setting
LED4 = !SG1
= NOT (SG1)
SS2
(go to Setting Group 2
-alternate setting group)
Figure SECTION 1: .43:
AJUSTES ALTERNATIVOS Operator Control LED and
Logic Application
BLOQUEIO Operator Control
Figure SECTION 1: .44 describes the logic driven by the BLOQUEIO operator control
pushbutton (pulsed output PB5) and operation of the corresponding LED. Relay Word bit PB5
propagates to latch LT4.
Latch LT4 is set up as a flip-flop:
•
Press the BLOQUEIO operator control pushbutton (for 3 seconds, as described in
Figure SECTION 1: .34) and LT4 sets to logical 1.
•
Press the BLOQUEIO operator control pushbutton again (for 3 seconds, as described in
Figure SECTION 1: .34) and LT4 resets to logical 0.
All latches (LT1 through LT8) are non-volatile (retain their state if the SEL-351P is powered
down and then powered up again). The latch output (Relay Word bit LT4) propagates to the
following logic:
•
Drives the corresponding BLOQUEIO operator control LED [SEL
OGIC
setting LED5 =
!LT4 = NOT(LT4)] to indicate that is BLOQUEIO ON (LED is illuminated; LT4 =
logical 0) or OFF (LED is extinguished; LT4 = logical 1).
•
Supervises most of the other operator controls as listed at the bottom of Figure
SECTION 1: .44.
Содержание SEL-351P
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