10-20 Serial Port Communications and Commands Date Code 990215
SEL-351P Manual Técnico
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, or if the fault locator is disabled (enable setting
EFLOC = N), $$$$$$$ is shown in the LOCAT column. In either case, 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 SEL
OGIC
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 displays the front panel LED status during the event in binary format.
The top row of LEDs are shown first and the bottom row of LEDs are shown next under the
TARGETS column. A “1” means the LED was illuminated during the event and a “0” means the
LED was deasserted.
For example, 11001010 00001100 under the TARGETS column would be interpreted as follows
(first three digits):
1 Æ Control Enabled LED illuminated
1 Æ AC Supply LED illuminated
0 Æ Battery Problem LED not illuminated
etc...
For more information on front-panel target LEDs, see Front-Panel Status and Trip Target LEDs
in Section 1: Factory-Set Logic. For more information on event reports, see Section 12:
Standard Event Reports and SER.
IRI Command (Synchronize to IRIG-B Time Code)
IRI forces the SEL-351P to read the demodulated IRIG-B time code at the serial port input to
force the control to synchronize to IRIG-B. Enter the following command:
=>IRI <ENTER>
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