Factory Settings Examples; View Local Control (With Factory Settings) - Schweitzer Engineering Laboratories SEL-387E Instruction Manual

Table 8.2: Correspondence Between Local Control Switch Types
Local Switch Type
ON/OFF
OFF/MOMENTARY
ON/OFF/MOMENTARY
Disable local control switches by "nulling out" all the label settings for that switch. The local bit
associated with this disabled local control switch is then fixed at logical 0.

Factory Settings Examples

Local bits LB3 and LB4 are used in a few of the factory SEL
manual trip and close functions. Their corresponding local control switch position labels are set
to configure the switches as OFF/MOMENTARY switches:
Local Bit
LB3
LB4

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).
Date Code 20020129
and Required Label Settings
Label NLBn
X
X
X
Label Settings
NLB3 = MANUAL TRIP 1
CLB3 = RETURN
SLB3 =
PLB3 = TRIP
NLB4 = MANUAL CLOSE 1
CLB4 = RETURN
SLB4 =
PLB3 = CLOSE
Press CNTRL for
Local Control
Front-Panel Interface
SEL-387E Instruction Manual
Label CLBn Label SLBn
X
X
X
control equation settings for
OGIC
Function
trips breaker and drives reclosing relay to
lockout
OFF position ("return" from MOMENTARY
position)
ON position – not used (left "blank")
MOMENTARY position
closes breaker, separate from automatic
reclosing
OFF position ("return" from MOMENTARY
position)
ON position – not used (left "blank")
MOMENTARY position
Label PLBn
X
X
X X
8-13