8-6
Front-Panel Interface
Date Code 20020129
SEL-387E Instruction Manual
The up/down arrow keys are then used to manually scroll through the diagnostic fields, showing
the analog channel offsets, power supply voltages, internal temperature, RAM (OK/FAIL), etc.
The display remains in this scroll sequence until either
<CANCEL>
or
<EXIT>
is pushed.
OTHER
The
<OTHER>
button is used to access several miscellaneous functions; it mimics the
corresponding serial port commands for these functions. Pushing
<OTHER>
provides a menu
that prompts the user to select
DATE
,
TIME
,
TAR
get,
BKR
( breaker),
RESET51
, or
LCD
.
These perform the same functions as the serial port commands
DAT
,
TIM
,
TAR
,
BRE
, and
RES
. Use any arrow key and
<SELECT>
to choose the function. These OTHER subfunctions
are discussed below in alphabetical order.
BKR
This function displays the breaker monitor accumulator values for internal and external trips, the
accumulated interrupted currents by pole, the percent contact wear, and the time/date of last
reset, for the selected breaker.
When BKR is selected, a second menu appears to prompt the user to select Bk1, Bk2, or Bk3.
Use the right/left arrow keys and
<SELECT>
to choose. Another menu appears, asking whether
DISPLAY
or
RESET
is desired. Use the right/left arrow keys and
<SELECT>
to choose.
If DISPLAY is selected, the display scrolls automatically, showing the internal and external trip
counters for the breaker chosen, the phase currents accumulated for each type of trip, and the
percent contact wear, by breaker pole. The first two-line display shows P1, the second P2, and
the third P3. The fourth display shows
“% wear”
for each of the three poles, in integer values
of 100 or less. The fifth display shows
“Last Reset From”
and the date/time of last reset.
Pushing
<SELECT>
will toggle between stop-scroll and resume-scroll to facilitate hand
recording of data values.
Push
<CANCEL>
to return to the OTHER main menu. Push
<EXIT>
to return to the default
display.
Figure 8.9, at the end of this section, shows the full OTHER/BKR menu and display structure.
DATE
The DATE function is used to change the date stored in the relay. It is identical to the serial port
DATE
command.
When selected, a two-line display appears, with the current date on the first line and a prompt to
Set
or
Cancel
on the second. Use the right/left arrows and
<SELECT>
to choose. The date
display will follow whichever format was selected by the DATE_F setting, either MDY or
YMD. If
Set
is selected, a second display prompts the user to change the date. Because this is a
Level 1 command, it is not password protected from the front panel. Use the right/left arrows to
move between the MM/DD/YY fields and the up/down arrows to scroll to the number selected
for the field. When the date is shown correctly, push
<SELECT>
to enter it. Push
<CANCEL>
to return to the OTHER main menu. Push
<EXIT>
to return to the default display.
Содержание SEL-387E
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