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B.15
Date Code 20050919
Instruction Manual
SEL-387-0, -5, -6 Relay
SEL-300 Series Relays Firmware Upgrade Instructions
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.
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
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 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.
Содержание SEL-387-0
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