8.9
Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay
Front-Panel Interface
Pushbuttons
The next menus to appear are to allow the user to enter a specific section of the
GROUP settings, rather than having to scroll through all GROUP settings. The
sections are
CONFIG. SETTINGS, GENERAL DATA, DIFF ELEMS, RESTRICTED
EARTH
, WINDING n ELEMS, COMBINED ELEMS, and MISC. TIMERS. Four
additional section titles appear after
MISC. TIMERS. These are TRIP LOGIC,
CLOSE LOGIC, EVENT TRIGGER, and OUTPUT CONTACT Logic. These sections are
entirely SEL
OGIC control equations, and cannot be viewed or changed from
the front panel. Use an arrow key to scroll past these latter sections. Use any
arrow key to move to the desired section, then push {SELECT} to enter that
section.
For example, selecting
CONFIG. SETTINGS, causes the first setting E87W1=Y to
appear in the second line of the display. If you do not recognize this setting,
push the {TARGET RESET} pushbutton and the following description will scroll
across the first line:
Enable Wdg1 in Differential Element (Y, N).
In the
Show mode, we can only observe the value. The {SELECT} pushbutton
acts like a down arrow to move to the next setting. The up/down arrows
themselves can be used to move within the list of settings.
In the
Set mode, we can choose to change the value by pushing {SELECT}. An
underscore will appear under the first character of the value. If it has discrete
values, like E87W1, the up/down arrows can be used to scroll through the
available choices. If it is a numerical variable, the digits are changed one at a
time, using the right/left arrows to move to the digit and the up/down arrows to
select the number to insert. When the setting is displayed at its new value,
push {SELECT} to enter the change.
When the complete list of settings has been shown or set, the display returns to
the menu level of selection of which section to
Set or Show. {CANCEL} can also
be used to move to this level from within the section of settings. {EXIT}, in the
Set mode, brings the display to a Save Changes? Y/N selection point. In the
Show mode it returns to the default display.
PASSWORD
This device is shipped with default
passwords. Default passwords should
be changed to private passwords at
installation. Failure to change each
default password to a private
password may allow unauthorized
access. SEL shall not be responsible
for any damage resulting from
unauthorized access.
!
WARNING
This command is like the password setting feature of the PAS serial port
command. You cannot view the list of passwords from the front panel; you can
only enter existing passwords where required or change them to some other
value with this front-panel command.
If
PASSWORD is selected, the first display requires you to enter the existing
Level 2 password, if password protection is in force.
The next display asks the level of access for which you are changing the
password. These are ACC, BAC, and 2AC, corresponding to the Level 1,
Level B, and Level 2 serial port access request commands. Use the right/left
arrow keys and {SELECT} to choose.
The third display permits setting of the new password for the level selected.
This is done in the same manner as for normal entering of the password. To set
it, Push {SELECT} when the new password is displayed fully.
{CANCEL} can be used to return to an earlier menu. {EXIT} will abort the
PASSWORD command and return to the default display.
PORT
This command is roughly equivalent to the SET P and SHO P serial port
commands. When
PORT is selected, a menu appears for selecting which of the
four port setting groups to
Show or Set. Use the right/left arrow keys and
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