Sel 551 - Page 154

6.8
SEL-551 Relay Instruction Manual Date Code 20110408
Front-Panel Interface
Functions Unique to the Front-Panel Interface
View Local Control
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):
The
RECLOSER: ENABLE/DISABLE switch is an ON/OFF switch.
Press the right arrow pushbutton, and scroll to the next set local control
switch:
and to the next local control switch:
The
MANUAL TRIP: RETURN/TRIP and MANUAL CLOSE: RETURN/CLOSE switches
are both OFF/MOMENTARY switches.
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:
This front-panel function provides the same function as the serial port PULSE
command (see Figure 6.3).
Press CNTRL for
Local Control
RECLOSER ←→
Position:DISABLE
Logical 1
LB1
DISABLE
(Logical 0)
ENABLE
Relay
Word
Bit
RECLOSER
MANUAL TRIP ←→
Position: RETURN
Logical 1
LB3
RETURN
(Logical 0)
TRIP
Relay
Word
Bit
MANUAL TRIP
MANUAL CLOSE ←→
Position: RETURN
Logical 1
LB4
RETURN
(Logical 0)
CLOSE
Relay
Word
Bit
MANUAL CLOSE
Output Contact ←→
Testing