B.14
SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601
SEL-300 Series Relays Firmware Upgrade Instructions
Upgrade Procedure
IO_BRD Fail Status Message
Perform this procedure only if you have only an IO_BRD Fail Status message;
for additional fail messages, proceed to CR_RAM, EEPROM, and IO_BRD
Fail Status Messages on page B.14.
Step 1. From Access Level 2, type INI <Enter> to reinitialize the I/O
board(s). If this command is unavailable, go to CR_RAM,
EEPROM, and IO_BRD Fail Status Messages on page B.14.
The relay asks the following:
Are the new I/O board(s) correct (Y/N)?
a. Type Y <Enter>.
b. After a brief interval (as long as a minute), the EN LED
will illuminate.
If the EN LED does not illuminate and you see a
SEL
boot !> prompt, type EXI <Enter> to exit
SEL
BOOT. After a brief interval the EN LED will
illuminate. Check for Access Level 0
= prompt.
c. Use the ACC and 2AC commands and type the
corresponding passwords to reenter Access Level 2.
d. Enter the PAS and SHO n commands to view relay
settings and verify that these match the settings you
saved (see Backup Relay Settings on page B.6).
Step 2. If the settings do not match, reenter the settings you saved
earlier.
a. If you have SEL-5010 Relay Assistant software or
ACSELERATOR, restore the original settings by
following the instructions for the respective software.
b. If you do not have the SEL-5010 Relay Assistant
software or
ACSELERATOR, restore the original settings
by issuing the necessary SET n commands, where n
can be 1–6, G, P, L, T, R, X, or Y (depending upon the
settings classes in the relay).
Step 3. Use the PAS command to set the original relay passwords.
For example, type PAS 1: Ot3579 <Enter> to set the Access
Level 1 password to Ot3579.
Use a similar format for other password levels. SEL relay
passwords are case sensitive, so the relay treats lowercase and
uppercase letters as different letters.
Step 4. Go to H. Verify Settings, Calibration, Status, Breaker Wear, and
Metering on page B.15.
CR_RAM, EEPROM, and IO_BRD Fail Status Messages
Step 1. Use the ACC and 2AC commands with the associated
passwords to enter Access Level 2.
The factory default passwords are in effect; use the default
relay passwords listed in the PAS command description in the
relay instruction manual.
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