CHAPTER 6: SETPOINTS
S4 CONTROLS
350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
6–131
Breaker control
The Breaker Control menu is designed to trip and close the breaker from the relay either
remotely (LOCAL MODE setting set to "OFF," or the selected contact input deselected) or
locally (the input from the LOCAL MODE setpoint asserted). While in LOCAL MODE, the
REMOTE OPEN and CLOSE setpoints are not active.
The following path is available using the keypad. For instructions on how to use the
keypad, please refer to
Chapter 3 - Working with the Keypad
.
PATH
:
SETPOINTS > S4 CONTROLS > BREAKER CONTROL
LOCAL MODE
Range: Off, Contact Input 1 to 10, Virtual Input 1 to 32, Remote Input 1 to 32, Logic
Elements1 to 16, CT Fail Alarm PKP, CT Fail Alarm OP, 2nd Harmonic Alarm, 2nd Harmonic
Default: Off
The LOCAL MODE setting places the relay in local mode. The relay is in Remote Mode, if
not forced into Local Mode by this setpoint (i.e. LOCAL MODE set to "OFF," or the selected
input de-asserted).
RESET
Range: Off, Contact Input 1 to 10, Virtual Input 1 to 32, Remote Input 1 to 32, Logic
Elements1 to 16, CT Fail Alarm PKP, CT Fail Alarm OP, 2nd Harmonic Alarm, 2nd Harmonic
Default: Off
The RESET setting resets the latched alarm or Trip LEDs, and the latched relays.
REMOTE OPEN
Range: Off, Contact Input 1 to 10, Virtual Input 1 to 32, Remote Input 1 to 32, Logic
Elements1 to 16, CT Fail Alarm PKP, CT Fail Alarm OP, 2nd Harmonic Alarm, 2nd Harmonic
Default: Off
This setting specifies the input which when asserted, initiates a trip (output relay #1 TRIP
energized) and opens the breaker.
REMOTE CLOSE
Range: Off, Contact Input 1 to 10, Virtual Input 1 to 32, Remote Input 1 to 32, Logic
Elements 1 to 16, CT Fail Alarm PKP, CT Fail Alarm OP, 2nd Harmonic Alarm, 2nd Harmonic
Default: Off
This setting specifies the input which when asserted initiates a close (output relay #2
CLOSE energized) and closes the breaker.
KEYPAD BKR OPEN
Range: Yes, No
Default: No
This setting provides flexibility to the user to open the breaker from the keypad.
Selecting “Yes” will introduce a pulse of 100ms to the "trip" output relay. The setting is
active, when the selected input under LOCAL MODE setpoint is asserted
KEYPAD BKR CLOSE
Range: Yes, No
Default: No
This setting provides flexibility to the user to close the breaker from the keypad.
Selecting “Yes” will introduce a pulse of 100ms to the "close" output relay. The setting is
active, when the selected input under LOCAL MODE setpoint is asserted
By default, the breaker control mode is set to "Remote" ( LOCAL MODE set to "OFF"). In this
mode, only the REMOTE OPEN and REMOTE CLOSE setpoints are active. The rest of the
setpoints with exception of the RESET setpoint are deactivated, regardless of the status of
their selected inputs.
