B.15
Date Code 20170601 Instruction Manual SEL-387-0, -5, -6 Relay
SEL-300 Series Relays Firmware Upgrade Instructions
Upgrade Procedure
Step 2. Type R_S <Enter> to restore factory default settings in the
relay (type R_S 1 <Enter> for a 1 A SEL-387 or 1 A SEL-352
relay).
The relay asks whether to restore default settings. If the relay
does not accept the R_S (or R_S 1) command, contact your
customer service representative or the factory for assistance.
Step 3. Type Y <Enter>.
NOTE: If the relay prompts you to
enter a part number, use either the
number from the firmware envelope
label or the number from the new part
number sticker (if supplied).
The relay can take as long as two minutes to restore default
settings. The relay then reinitializes, and the EN LED
illuminates.
Step 4. Press <Enter> to check for the Access Level 0
= prompt
indicating that serial communication is successful.
Step 5. Use the ACC and 2AC commands and type the corresponding
passwords to reenter Access Level 2.
Step 6. Restore the original settings:
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 available in the relay).
Step 7. 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 8. If any failure status messages still appear on the relay display,
see the troubleshooting section in the relay instruction manual
or contact your customer service representative or the factory
for assistance.
H. Verify Settings,
Calibration, Status,
Breaker Wear, and
Metering
Step 1. Use the ACC and 2AC commands with the associated
passwords to enter Access Level 2.
Step 2. Use the SHO command to view the relay settings and verify
that these match the settings you saved earlier (see Backup
Relay Settings on page B.6).
If the settings do not match, reenter the settings you saved
earlier (see Step 6 under CR_RAM, EEPROM, and IO_BRD
Fail Status Messages on page B.14).
Step 3. Type SHO C <Enter> to verify the relay calibration settings.
If the settings do not match the settings contained in the text file
you recorded in C. Save Settings and Other Data on page B.6,
contact your customer service representative or the factory for
assistance.
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