3.11
Date Code 20171006 Instruction Manual SEL-400 Series Relays
Basic Relay Operations
Checking Relay Status
Step 5. Before you can change to a new password, the relay prompts you to
first confirm the existing password. Enter the existing password and
press <Enter>.
Step 6. The relay prompts you for the new password, and a confirmation of
the new password, as follows:
Notice that the new password is not displayed. After the
confirmation, the new password is in effect. The relay will issue a
weak password warning if the new password does not include at least
one special character, number, lowercase letter, and uppercase letter.
Step 7. Set new passwords for each access level.
In a similar manner as the previous step, create new strong passwords
for each access level.
Step 8. Commit these passwords to memory, permanently record your new
passwords, and store this permanent record in a secure location.
To eliminate password verification for an access level, enter DISABLE in place
of the new password. This action will disable the password of that level; there-
fore, the relay does not check for a password upon entering that access level.
If you forget a password or encounter difficulty changing the default passwords,
you can temporarily disable password verification. See Section 2: Installation in
the product specific instruction manual for information on the password disable
jumper.
Checking Relay Status
With continual self-testing, the relay monitors the internal operation of all cir-
cuits to verify optimal performance of relay functions. If an internal circuit, pro-
tection algorithm, or automation algorithm enters an out-of-tolerance operating
range, the relay reports a status warning. In the unlikely event that an internal
failure occurs, the relay reports a status failure. For more information on relay
status, see Relay Self-Tests on page 10.15.
You can check relay status through a communications port by using a terminal,
terminal emulation computer program, or QuickSet. In addition, you can use the
relay front panel to view status information.
Old Password: ?**** <Enter>
New Password: ?**** <Enter>
Confirm New Password: ?**** <Enter>
Password Changed
CAUTION: This password can be strengthened. Strong Pass-
words do not include a name, date, acronym or word. They
consist of the maximum allowable characters, with at least
one special character, number, lower-case letter, and
upper-case letter. A change in password is recommended.
To Next Page
Loading...
