4.15
Date Code 20171006 Instruction Manual SEL-400 Series Relays
Front-Panel Operations
Front-Panel Menus and Screens
Password
The relay uses passwords to control access to settings and control menus. The
relay has six access-level passwords. See Access Levels and Passwords on
page 3.7 for more information on access levels and setting passwords. The relay
front panel is at Access Level 1 upon initial power-up and after front-panel time
out.
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 pass-
word may allow unauthorized access.
SEL shall not be responsible for any
damage resulting from unauthorized
access.
Password validation occurs only when you request a menu function that is at a
higher access level than the presently authorized level. At this point, the relay dis-
plays a password entry screen, shown in Figure 4.15. This screen has a blank
password field and an area containing alphabetic, numeric, and special password
characters with a movable highlight box.
Enter the password by pressing the navigation pushbuttons to move the highlight
box through the alphanumeric field. When at the desired character, press ENT. The
relay enters the selected character in the password field and moves the dark box
cursor one space to the right. You can backspace at any time by highlighting the
BACKSPACE character and then pressing ENT. When finished, enter the password by
highlighting the
ACCEPT option and then pressing ENT.
If you entered a valid password for an access level greater than or equal to the
required access level, the relay authorizes front-panel access to the combination
of access levels (new level and all lower levels) for which the password is valid.
The relay replaces the password screen with the menu screen that was active
before the password validation routine. When you enter Access Levels B, P, A,
O, and 2, the Relay Word bit SALARM pulses for one second.
If you did not enter a valid password, the relay displays the error screen shown in
Figure 4.16. Entering a valid password for an access level below the required
access level also causes the relay to generate the error screen. In both password
failure cases, the relay does not change the front-panel access level (it does not
reset to Access Level 1 if at a higher access level). The relay displays the
PASSWORD INVALID screen for five seconds. If you do not want to wait for the
relay to remove the message, press any of the six navigational pushbuttons during
the five-second error message to return to the previous screen in which you were
working.
Figure 4.15 Enter Password Screen
A B C D E F G H
I J K L M N O P
Q R S T U V W X
Y Z a b c d e f
g h i j k l m n
o p q r s t u v
w x y z 0 1 2 3
4 5 6 7 8 9
_
.
ACCEPT BACKSPACE
Password Required
Password
Field
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