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Lockout Reset
After lockout the CB can be closed by control close input, CB close button or remote CB close
command or by manual CB Close. The inhibit timer starts counting after CB close (52A input
activates). When the timer elapsed, lockout condition reset.
Block Autoreclose Input
If this input activate during reclose cycle , recloser locks out.
If activate when recloser not running, next tripping is definitive trip.
Other Notes
- During reclose cycle, Close CB button, control close by input and remote CB close command is
disabled. Open CB button and remote tripping command will lock the recloser.
- Maintenance mode will stop the reclose cycle without any locking. Power down the relay also
stops the reclose cycle.
- If the relay receives an order to change setting group, the order will only be executed after the
reclose cycle has elapsed.
5.7 Open CB & Close CB Control
Open CB : To manually open circuit breaker
Close CB : To manually close circuit breaker
The Open CB and Close CB button allows circuit breaker (CB) to be opened and closed from the
relay front panel. Password is required for this operation. The control is available in the default
display. The control will work with or without CB Status 52A input. Open CB control is using
Output Relay 1 (Trip) for the signal.
For Open CB control, ‘Remote’ is assigned to output relay R1 or any other output relay with trip
function. Otherwise the display shows “Remote Trip output not found”
For Close CB control, one of the output relay function should be start/other and ‘CB Close’ is
assigned. Otherwise “CB close output not found” warning will be shown.
To Open CB
To open CB, press Open CB button once, password is required if not yet entered, then the display
shows “Press again to open CB…”, press Open CB button again to open the CB. Output relay 1
energize until CB Status 52A input deactivates. If CB Status 52A input is unavailable, Output relay
1 will energize for 2 seconds. The display shows “CB Opened” when CB opens successfully.
If Open CB button press but CB already opened (CB Status 52A input deactivates), the display
shows “CB is open” and ends.
To Close CB
To close CB, press Close CB button once, password is required if not yet entered. The display
shows “Press again to close CB…”, press Close CB button again to close the CB. Output relay for
CB Close energize until CB Status 52A input activates. If CB Status 52A input is unavailable,
Output relay will energize for 2 seconds. The display shows “CB Closed” when CB closes
successfully.
If Close CB button press but CB already closed (CB Status 52A input energizes), the display shows
“CB is close” and ends.
CB Fail Alarm
If CB Status 52A input is available and CB does not open or close after 2 seconds, CB Fail alarm
generated.
