3–4
350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
FRONT CONTROL PANEL INTERFACE
CHAPTER 3: INTERFACES
When the display shows
SETPOINTS
, pressing the
MESSAGE
►
key or the
ENTER
key will
display the page headers of programmable parameters (referred to as setpoints in the
manual). When the display shows
ACTUAL VALUES
, pressing the
MESSAGE
►
key or the
ENTER
key displays the page headers of measured parameters (referred to as actual
values in the manual).
Each page is broken down further into logical sub-pages of messages. The
MESSAGE
▲
and
MESSAGE
▼
keys are used to navigate through the sub-pages. A summary of the
setpoints and actual values pages can be found in the Chapters : Setpoints and Actual
Values, respectively.
The
ENTER
key is dual purpose. It is used to enter the sub-pages and to store altered
setpoint values into memory to complete the change. The
MESSAGE
►
key can also be
used to enter sub-pages but not to store altered setpoints.
The
ESCAPE
key is also dual purpose. It is used to exit the sub-pages and to cancel a
setpoint change. The
MESSAGE
◄
key can also be used to exit sub-pages and to cancel
setpoint changes.
The
VALUE
keys are used to scroll through the possible choices of an enumerated setpoint.
They also decrement and increment numerical setpoints.
The
RESET
key resets any latched conditions that are not currently active. This includes
resetting latched output relays, latched Trip LEDs, breaker operation failure, and trip / close
coil failures. The Autoreclose Scheme is also reset with the shot counter being returned to
zero and the lockout condition being cleared.
The
MESSAGE
▲
and
MESSAGE
▼
keys scroll through any active conditions in the relay.
Diagnostic messages are displayed indicating the state of protection and monitoring
elements that are picked up, operating, or latched.
LED status indicators
•
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: Amber
This LED will turn “ON”, when the relay is 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: Amber
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: Amber
