B-18 SEL-300 Series Relays Firmware Upgrade Instructions Date Code 20080110
SEL-387E Instruction Manual
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>.
The relay can take as long as two minutes to restore default settings. The relay then
reinitializes, and the EN LED illuminates.
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).
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 corresponding passwords to reenter
Access Level 2.
Step 6. Restore the original settings:
a. If you have SEL-5010 Relay Assistant software or
AC
SEL
ERATOR
, 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
AC
SEL
ERATOR
,
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 relay passwords.
For example, type PAS 1 <Enter> to set the Access Level 1 password.
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-7).
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-17).
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