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350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
S1 RELAY SETUP
CHAPTER 6: SETPOINTS
Front panel with non-programmable LEDs
The user can send a message to the display, that will override any normal message by
sending text through Modbus. Refer to the
3 Series Communications Guide
for register
details.
PATH
:
SETPOINTS > S1 RELAY SETUP > FRONT PANEL
FLASH MESSAGE TIME
Range: 1 s to 65535 s
Default: 5 s
Flash messages are status, warning, error, or information messages displayed for
several seconds in response to certain key presses during setting programming. These
messages override any normal messages. The duration of a flash message on the
display can be changed to accommodate different reading rates.
MESSAGE TIMEOUT
Range: 1 s to 65535 s
Default: 30 s
If the keypad is inactive for a period of time, the relay automatically reverts to a default
message. The inactivity time is modified via this setting to ensure messages remain on
the screen long enough during programming or reading of actual values.
SCREEN SAVER
Range: Off, 1 min to 10000 min
Default: Off
The life of the LCD backlight can be prolonged by enabling the Screen Saver mode.
If the keypad is inactive for the selected period of time, the relay automatically shuts off
the LCD screen. Any activity (keypress, alarm, trip, or target message) will restore screen
messages.
LED BKR OPEN COLOR
Range: Red, Green, Orange, Off
Default: Green
Allows the user to select the color of the LED indicator under Breaker Open conditions.
LED BKR CLSD COLOR
Range: Red, Green, Orange, Off
Default: Green
Allows the user to select the color of the LED indicator under Breaker Closed conditions.
Front panel with programmable LEDs
The front panel ordered with programmable LEDs (option L) provides 4 non-programmable
and 8 programmable LEDs. The first column of four LEDs (on the left) are non-
programmable LEDs. The next two columns of LEDs are programmable; they can be
triggered by a selected operand from a list of logic operands, and can be programmed to
be either Self-Reset or Latched. The LED color for LED5 to LED8 can also be programmed.
By default the programmable LEDs are all Off, with no source selected.
The LEDs on the relay front panel are ordered as shown: