Sel 551 - Command Summary

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SEL-551 Relay Instruction Manual Date Code 20110408
SEL-551 Command Summary
TAR n k Display Relay Word row n status (n = 1–15) on remapped front-panel LED targets. Enter number k to scroll
Relay Word row n status k times on screen.
TAR n X Relay Word row n status (n = 1–15) is sent to the serial port/computer screen, but the front-panel LED targets
remain unchanged.
TIM Show or set time (24-hour time). Show time presently in the relay by entering just TIM. Example time 22:47:36
is entered with command TIM 22:47:36.
TRI Trigger an event report.
Access Level 2
Commands
The Access Level 2 commands primarily allow the user to change settings or operate relay
parameters and output contacts. All Access Level 1 commands can also be executed from
Access Level 2. The screen prompt is: =>>
CAL Enter Access Level C. If the main board Access jumper is not in place, the relay prompts for the entry of the
Access Level C password. Access Level C is reserved for SEL use only.
CLO Assert the CLOSE Relay Word bit. If CLOSE is assigned to an output contact (e.g., OUT2 = CLOSE), then the
output contact will assert if command CLO is executed and the circuit breaker is open.
CON n Control Relay Word bit RBn (Remote Bit n; n = 1–8). Execute CON n and the relay responds:
CONTROL RBn.
Then reply with one of the following:
SRB n set Remote Bit n (assert RBn)
CRB n clear Remote Bit n (deassert RBn)
PRB n pulse Remote Bit n [assert RBn for one processing interval (1/8 cycle)].
OPE Assert the TRIP Relay Word bit. If TRIP is assigned to an output contact (e.g., OUT1 = TRIP), then the output
contact will assert if command OPE is executed.
PAS 1 Change Access Level 1 password.
PAS 2 Change Access Level 2 password.
PAS C Change Access Level C password.
PUL n k Pulse output contact n (n = OUT1, OUT2, OUT3, OUT4, and ALARM). Enter number k to pulse for k seconds [k = 1 to
30 (seconds)], otherwise pulse time is 1 second.
SET n Change relay settings (overcurrent, reclosing, timers, etc.).
SET L n Change SEL
OGIC control equations settings.
SET P n Change port settings
SET R n Change Sequential Events Recorder (SER) settings.
SET T n Change text label settings.
For the SET commands, jump to parameter n to begin setting editing. If parameter n is not entered, setting edit-
ing starts at the first setting.
VER Show relay configuration and firmware version.
Access Level 1
Command
The Access Level 1 commands primarily allow the user to look at information
(e.g., settings, metering, etc.), not change it. The screen prompt is: =>