7.36
SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601
Serial Port Communications and Commands
SEL ASCII Protocol Details
Refer to Section 4: Control Logic for a list of the Relay Word and the
corresponding rows.
TAR R (Reset Targets)
Access Levels 1, B, 2
The TARGET R command resets the default row for the TAR and TAR F
commands to 0, and remaps the second row of front-panel LEDs to display
Row 1, which is the standard target display. It also resets any tripping front-
panel targets.
Use the TAR R command to return the front-panel LEDs to the standard
targets when you are done using the TAR or TAR F command for testing.
TFE (Through-Fault Event Report) (SEL-387-5 and SEL-387-6 Relays Only)
The TFE command displays the following data for each individually recorded
through-fault event:
➤ Date and time of the through fault
➤ Duration (seconds) of the through fault
➤ Maximum current (Amps primary) for each monitored current
input
The following cumulative values (updated for each new through-fault event)
are also displayed:
➤ Through-fault count
➤ Simple I
2
t calculation for each monitored current input
There are various choices for the TFE command, listed briefly below. Refer to
Section 5: Metering and Monitoring for a complete description of the
through-fault event reports:
THE (Thermal Report) (SEL-387-6 Relay only)
Access Levels 1, B, 2
The THERM command displays temperature inputs, thermal event reports,
hourly profile data or daily profile data, depending on the command statement.
There are several choices for the THE command, listed briefly below. Refer to
Section 5: Metering and Monitoring for a complete description of the thermal
monitoring reports.
Table 7.8 TFE Command Choices
TFE
Displays cumulative and individual through-fault event data.
The twenty (20) most recent individual events are displayed.
TFE A
Displays cumulative and individual through-fault event data.
All the most recent individual events are displayed, up to 1200.
TFE C
Clears/resets cumulative and individual through-fault event data.
TFE
n
Displays cumulative and individual through-fault event data. The n
most recent individual events are displayed, where n = 1 to 1200.
TFE P
Preloads cumulative through-fault event data.
TFE R
Clears/resets cumulative and individual through-fault event data.
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