Table of Contents
Advertisement
CHAPTER 6: SETPOINTS
339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
LOCAL MODE
Range: Off, Contact Input 1 to 10, Virtual Input 1 to 32, Remote Input 1 to 32, Logic
Elements 1 to 16
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).
REMOTE OPEN
Range: Off, Contact Input 1 to 10, Virtual Input 1 to 32, Remote Input 1 to 32, Logic
Elements 1 to 16
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
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.
Local Mode is set if the input for the LOCAL MODE setpoint is asserted. In this mode, the
REMOTE OPEN and REMOTE CLOSE setpoints are deactivated, regardless of the status of
their selected inputs. Breaker Open and Breaker Close commands from the KEYPAD BKR
OPEN and KEYPAD BKR CLOSE setpoints will be active, if the breaker operation is set to
Local Mode (i.e. the selected input under the LOCAL MODE setpoint asserted).
S4 CONTROL
6–149
Advertisement
Table of Contents
