B.2
SEL-400 Series Relays Instruction Manual Date Code 20171006
Firmware Upgrade Instructions
Required Equipment
You will need the following items before beginning the firmware upgrade process:
➤ Personal computer (PC)
➤ Terminal emulation software that supports Xmodem/CRC protocol
➤ SEL-C234A cable, SEL-C662 USB to EIA-232, or equivalent
➤ Disc containing the firmware upgrade file(s)
➢ .z19 or .s19 firmware upgrade file (.z19 requires SELBOOT R205
or newer)
➢ SELBOOT firmware upgrade file (if necessary; based on the existing
SEL
BOOT revision of the relay)
➢ EtherCAT communications board firmware file (SEL-ECB-
Rxxx-Vx-Zxxxxxx-Dxxxxxxxx.zds)
➢ Remote SEL Axion firmware file (SEL-2245-42-Rxxx-Vx-
Zxxxxxx-Dxxxxxxxx.zds)
➤ Relay Firmware Upgrade Instructions
➤ SD Card with Time-Domain Link (TiDL) interface firmware if
upgrading a relay that uses remote data acquisition through TiDL
technology.
Optional Equipment
These items help you manage relay settings and understand procedures in the
relay upgrade process:
➤ ACSELERATOR QuickSet SEL-5030 Software (contains a firmware
upload tool that helps to automate this process)
➤ ACSELERATOR Architect SEL-5032 Software (manages IEC 61850
GOOSE, MMS, and SV CID files)
➤ Appropriate SEL-400 series relay manual
Important Considerations
If upgrading an SEL-451-5, SEL-421-4, or SEL-421-5 relay from firmware revi-
sion R309 or earlier to firmware revision R312 and later, make sure you save all
relay settings (including IEC 61850 CID configurations, if applicable) prior to
the firmware upgrade, as indicated in Save Settings and Other Data on page B.4
and Save Settings and Other Data on page B.9. Upon completion of the upgrade
process, the relay settings will reset to default values and the IEC 61850 CID file
may be removed. These files will need to be reloaded.
If you are upgrading an SEL-451-5, SEL-421-4, or SEL-421-5 relay from firm-
ware revision R309 or earlier to firmware revision R311, you must first upgrade
the relay firmware to R310 before upgrading to R311. This requirement is only
needed if upgrading specifically to R311. Failure to do so will result in the reset
of all relay MAC address settings back to factory defaults.
In some unusual cases, such as loss of relay power during the firmware file trans-
fer process, it is possible for data, including relay settings and the IEC 61850
CID file to be lost. Before beginning the firmware upgrade process, save relay
settings and, if applicable, the IEC 68150 CID file that has been configured for
the relay.
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