Schweitzer Engineering SEL-387-0 - Page 342

8.12
SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601
Front-Panel Interface
Pushbuttons
Factory Settings Examples: Local bits LB3 and LB4 are used in a few
of the factory SEL
OGIC control equation settings for manual trip and close
functions. Their corresponding local control switch position labels are set to
configure the switches as OFF/MOMENTARY switches:
View Local Control (With Factory Settings)
Access local control via the {CNTRL} pushbutton. If local control switches exist
(i.e., corresponding switch position label settings were made), the following
message displays with the rotating default display messages.
Press the {CNTRL} pushbutton, and the first set local control switch displays
(shown here with factory default settings).
Press the right arrow pushbutton, and scroll to the next set local control
switch.
The
MANUAL TRIP 1: RETURN/TRIP and MANUAL CLOSE 1: RETURN/CLOSE
switches are both OFF/MOMENTARY switches (see Figure 8.4).
There are no more local control switches in the factory default settings. Press
the right arrow pushbutton and scroll to the
Output Contact Testing
function.
Local Bit Label Settings Function
LB3 NLB3 = MANUAL TRIP 1 trips breaker and
drives reclosing relay to lockout
CLB3 = RETURN OFF position (“return”
from MOMENTARY position)
SLB3 = ON position–not used (left “blank”)
PLB3 = TRIP MOMENTARY position
LB4 NLB4 = MANUAL CLOSE 1 closes breaker,
separate from automatic reclosing
CLB4 = RETURN OFF position
(“return” from MOMENTARY position)
SLB4 = ON position–not used (left “blank”)
PLB3 = CLOSE MOMENTARY position
Press CNTRL for
Local Control
MANUAL TRIP 1←→
Position: RETURN
Lo
g
ical
1
LB3
Relay
Word
Bit
RETURN
(logical 0)
MANUAL TRIP
TRIP
MANUAL CLOSE 1←→
Position: RETURN
Lo
g
ical
1
LB4
Relay
Word
Bit
RETURN
(logical 0)
MANUAL CLOSE
CLOSE