7.38
SEL-387-0, -5, -6 Relay Instruction Manual Date Code 20170601
Serial Port Communications and Commands
SEL ASCII Protocol Details
=>>TRI <Enter>
Triggered
=>>
XFMR 1 Date: 03/13/97 Time: 18:49:21.586
STATION A
Event: TRIG
Targets:
Winding 1 Currents (A Sec), ABC: 0.0 0.0 0.0
Winding 2 Currents (A Sec), ABC: 0.0 0.0 0.0
Winding 3 Currents (A Sec), ABC: 0.0 0.0 0.0
Winding 4 Currents (A Sec), ABC: 0.0 0.0 0.0
=>>
Alarm Conditions
The SEL-387 asserts the ALARM output during power up until all self-tests pass
and whenever a diagnostic test fails. In addition to these, the ALARM output
pulses for one second with the commands and conditions shown in Ta ble 7.10.
Main Board Jumpers
Installing and removing certain main board jumpers affects execution of some
commands. Table 7.11 lists all jumpers you should be concerned with and
their effects.
Table 7.10 Commands With Alarm Conditions
Command Condition
2AC Entering Access Level 2 or
Three wrong password attempts into Access Level 2
ACC Three wrong password attempts into Access Level 1
BAC Entering Breaker Access Level or
Three wrong password attempts into Breaker Access Level
COP m n Copying a setting group to the active setting group
GRO n Changing the active setting group
PAS n Any password is changed
SET commands Changing the SET G settings, the SET R settings,
or the active group SET settings (SET P does not alarm)
Table 7.11 Main Board Jumpers
Jumper Comment
JMP6A Disables password protection when installed
JMP6B Enables CLO, OPE, and PUL commands when installed
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