3–6
350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
FRONT CONTROL PANEL INTERFACE
CHAPTER 3: INTERFACES
LED status indicators - Front panel with non-programmable LEDs
•
IN SERVICE: Green
This LED will be continuously “ON”, when the relay is set to “Ready” under
S1 RELAY
SETUP > INSTALLATION > RELAY STATUS
, and no major self-test errors have been
detected.
•
TROUBLE: Orange
This LED will turn “ON”, when the relay is in the not programmed (Not Ready) state
under
S1 RELAY SETUP > INSTALLATION > RELAY STATUS
, or upon detection of a major
self-test error. The relay will turn back to “IN-SERVICE” if no major self-test error is
present.
•
SETPOINT GROUP 1, 2: Green
These LEDs indicate the group of active protection elements. If setpoint group 1 is lit
green, only the protection elements under group 1 will be active. The protection
elements from group 2 will be inactive. The settings for each protection element can
be edited and displayed regardless of the active group.
•
TRIP: Red
This indicator turns on when the relay detects a fault and sends a trip command to
the trip output relay. The LED will reset by initiating a reset command from either the
RESET pushbutton Breaker Control, or communications; in all cases after the fault
condition has cleared.
•
ALARM: Orange
This LED will flash upon detection of an alarm condition, with element functions
selected as “alarm”. The LED will automatically turn off if the alarm condition clears.
The LED will remain steady “ON”, if the function of the operated protection was
selected as "latched alarm".
•
PICKUP: Orange
This indicator will light ON upon pickup condition generated by any of the relay
features. The indicator will turn off if no pickup condition is detected.
•
BREAKER OPEN: Red/Green/Orange/Off – programmable color, default Green
When the breaker is open, this indicator will be on continuously.
•
BREAKER CLOSED: Red/Green/Orange/Off – programmable color, default Green
When the breaker is closed, this indicator will be on continuously.
•
MAINTENANCE: Orange
This LED may indicate both breaker or relay maintenance depending on the
programmed maintenance elements. The LED will turn on upon operation of a
maintenance element.
NOTE
NOTE:
Refer to M7 Testing for information on testing LED status indicators.
898866A1.CDR
OR
AN
D
LED: TRIP
RESET (comand)
TRIP (from any el;ement set tp TRIP)