Date Code 20001006 Serial Port Communications and Commands 10-19
SEL-351 Instruction Manual
If the fault locator runs successfully, the location is listed in the LOCAT column, and the event
type is listed in the EVENT column:
AG for A-phase to ground faults
BG for B-phase to ground faults
CG for C-phase to ground faults
AB for A-B phase-to-phase faults
BC for B-C phase-to-phase faults
CA for C-A phase-to-phase faults
ABG for A-B phase-to-phase to ground faults
BCG for B-C phase-to-phase to ground faults
CAG for C-A phase-to-phase to ground faults
ABC for three-phase faults
If a trip occurs in the same event report, a “T” is appended to the event type (e.g., AG T).
If the fault locator does not run successfully, $$$$$$$ is listed in the LOCAT column. If the fault
locator is disabled (enable setting EFLOC = N), the LOCAT column is left blank. For either of
these cases where the fault locator does not run, the event type listed in the EVENT column is one
of the following:
TRIP event report generated by assertion of Relay Word bit TRIP
ER event report generated by assertion of SELOGIC Control Equation event report
trigger condition setting ER
PULSE event report generated by execution of the PUL (Pulse) command
TRIG event report generated by execution of the TRI (Trigger) command
The TARGETS column will display any of the following illuminated front-panel target LEDs if the
event report is generated by a trip (assertion of TRIP Relay Word bit):
INST COMM SOTF 50 51 81
For more information on front-panel target LEDs, see Section 5: Trip and Target Logic. For
more information on event reports, see Section 12: Standard Event Reports,
Sag/Swell/Interruption Report, and SER.
IRI Command (Synchronize to IRIG-B Time Code)
IRI directs the relay to read the demodulated IRIG-B time code at the serial port input.
To force the relay to synchronize to IRIG-B, enter the following command:
=>IRI <ENTER>
If the relay successfully synchronizes to IRIG, it sends the following header and access level
prompt:
FEEDER 1 Date: 03/05/97 Time: 10:15:09.609
STATION A
=>
Courtesy of NationalSwitchgear.com
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