B-4 Firmware Upgrade Instructions Date Code 20001006
SEL-351 Instruction Manual
Self-test failure: IO_BRD
a. Issue the Initialize (INI) command to reinitialize the I/O board(s). If this
command is not available, go to Step 12e.
b. Answer Y <ENTER> to the question: “Are the new I/O board(s) correct (Y/N)”
After about one minute, the EN LED will illuminate. The original relay settings
have been retained, but should be checked for accuracy.
c. Enter Access Level 2 by issuing the ACC and 2AC commands. Go to Step 13.
Self-test failure: CR_RAM, EEPROM, and IO_BRD
d. Set your communications software settings to 2400 baud, 8 data bits, 1 stop bit.
Now enter Access Level 2 by issuing the ACC and 2AC commands, (the
factory default passwords will be in effect: OTTER for level 1, TAIL for level
2).
e. Issue the Restore Settings (R_S) command to restore the factory default settings
in the relay. This takes about two minutes, then the EN LED will illuminate.
Note: If the relay asks for a part number to be entered, use the number from the
label on the firmware diskette, or from the new part number sticker (if supplied).
f. Enter Access Level 2 by issuing the ACC and 2AC commands, (the factory
default passwords will be in effect: OTTER for level 1, TAIL for level 2)
g. Restore the original settings as necessary with each of the following commands:
SET G, SET 1, SET L 1, SET 2, SET L 2, SET 3, SET L 3, SET 4, SET L
4, SET 5, SET L 5, SET 6, SET L 6, SET P 1, SET P 2, SET P 3, SET P F,
SET R.
h. Set the original relay passwords saved in Step 3 via the PAS command.
For example, PAS 1:APPLE <ENTER> sets the level 1 password to APPLE.
Use a similar format for PAS B and PAS 2. The PAS command is case-
sensitive, so the lower and upper-case letters are treated differently.
If there are still any FAIL codes on the Relay LCD, see Section 13: Testing and
Troubleshooting.
13. Verify the calibration settings by issuing the SHO C command. If the settings do not
match the settings recorded in Step 3, reissue the settings with the SET C command.
14. Issue the Version command (VER <ENTER>) and check the part number from the label
on the firmware diskette against the part number on the screen. If they match, go to Step
15; otherwise, type PAR <ENTER> and type the number from the diskette label and
press <ENTER>. If the relay re-initializes after saving the changes, go to Access Level 2.
Courtesy of NationalSwitchgear.com
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