Schweitzer Engineering SEL-387-0, Instruction Manual

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8.7
Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay
Front-Panel Interface
Pushbuttons
RESET51
This command exactly equates to the RES serial port command.
RESET51
clears all time accumulators of all the inverse-time overcurrent elements, both
for separate windings and for the combined overcurrent elements.
RESET51
may be useful for saving time in testing the relay overcurrent elements but is
not likely to be used while the relay actually is in service.
If
RESET51
is selected, a password screen will appear if password protection is
in force. Next, a
Reset 51? Yes No
screen appears. Use the right/left arrows
to underscore
Yes
or
No
, then push
{SELECT}
.
Yes
will reset the accumulators
and exit the command.
No
will abort the command and return to the
OTHER
main menu; or, simply push {CANCEL} to return to the
OTHER
main menu. Push
{EXIT}
to return to the default display.
TAR
This command is roughly equivalent to the TAR F serial port command.
When
TAR
is selected in the
OTHER
main menu, the display shows
TAR 0
, the
first row of the Relay Word bits, with
EN
shown in the second row (relay
enabled). The up/down arrow keys can be used to scroll through the remaining
rows of the Relay Word bits. For these rows, the asserted Relay Word bit
names will be listed in the second row of the display, and the corresponding
LED positions will be lit in the target area above the display. If more bits are
asserted than will fit in the display, the right/left arrow keys can be used to see
the off-screen names.
Push {CANCEL} to return to the
OTHER
main menu. Push {EXIT} to return to the
default display.
TIME
This command works like the
DATE
command above and is equivalent to the
TIME serial port command.
When selected, a two-line display appears, with the current time on the first
line and a prompt to
Set
or
Cancel
on the second. Use the right/left arrows
and
{SELECT}
to choose. Since this is a Level 1 command, it is not password
protected from the front panel. If
Set
is selected, a second display appears
prompting the user to change the time. Use the right/left arrows to move
between the HH:MM:SS fields and the up/down arrows to scroll to the
number selected for the field. When the time 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.
SET
The SET function has the most elaborate menu and display structure of all the
pushbutton functions. Only numeric value settings or settings having fixed
Character string values can be displayed or changed on the display. Settings
that are
SEL
OGIC
control equations cannot be displayed or changed.
To show or set relay settings, press the
{SET}
button. There are four set/show
options:
GROUP
,
GLOBAL
,
PORT
, and
PASS
. Use the right/left arrow keys and
{SELECT} to choose. These will be discussed in alphabetical order.
DATE TIME TAR
BKR RESET51 LCD
NOTE:
After setting the time, allow
at least 60 seconds before powering
down the relay or the new setting may
be lost.