Date Code 990215
Additional Front-Panel Interface Details
11-5
SEL-351P Manual Técnico
The MANUAL TRIP: RETURN/TRIP and MANUAL CLOSE: RETURN/CLOSE switches are
both OFF/MOMENTARY switches (see Figure SECTION 11: .2).
There are no more local control switches in the example settings. Press the right arrow
pushbutton, and scroll to the “output contact testing” function:
Output Contact
←→
Testing
This front-panel function provides the same function as the serial port PUL command.
Operate Extra Local Control (example settings)
Press the right arrow pushbutton, and scroll back to the first set local control switch in the
example settings:
MANUAL TRIP
←→
Position: RETURN
Press the SELECT pushbutton, and the operate option for the displayed local control switch
displays:
MANUAL TRIP
TRIP ? Yes No
←→
Scroll left with the left arrow button and then select “Yes”. The display then shows the new
local control switch position:
MANUAL TRIP
Position: TRIP
Because this is an OFF/MOMENTARY type switch, the MANUAL TRIP switch returns to the
RETURN position after momentarily being in the TRIP position. Technically, the MANUAL
TRIP switch (being an OFF/MOMENTARY type switch) is in the:
TRIP position for one processing interval (1/4 cycle; long enough to assert the correspond-
ing local bit LB3 to logical 1).
and then returns to the:
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