GE Industrial Solutions Entellisys System User Manual - Manual (Page 30)

Basic control 30
3
If the close breaker command is successful, the circuit breaker closes and the Current State of
the circuit breaker on the Breaker Control screen changes from Open to Closed. If the circuit
breaker does not close, examine the Sequence of Events. One of the following events may be
present:
• Attention Breaker Close Failed
• Breaker Close Command Rejected Breaker Locked Out
• Note Messngr Arbitrated Command From CPUA (or B)
• Note Messngr Reports CPUA (or B) Command Timed Out
See Table A-2 for more information.
3.5 Trip circuit breaker
To trip a circuit breaker, click TRIP BREAKER on the Breaker Control screen. A dialog box
appears for verification that the circuit breaker should be tripped. Click Yes to trip the circuit
breaker. Once the trip breaker command is verified, the EntelliGuard Messenger uses the Flux
Shifter to actually trip the circuit breaker.
If the trip breaker command is successful, the circuit breaker trips and is locked out, and the
Current State of the circuit breaker on the Breaker Control screen changes from Closed to
Open-tripped. If the circuit breaker does not trip, examine the Sequence of Events. One of the
following events may be present:
• Attention Breaker Trip Failed Flux Shifter
• Note Messngr Reports CPUA (or B) Command Timed Out
See Table A-2 for more information.
3.6 Locator LED
To turn on the locator LED for 10 or 30 seconds, click 10 Seconds or 30 Seconds on the Breaker
Control screen. The locator LED on the particular EntelliGuard Messenger blinks for the
appropriate length, making identification easy.
3.7 Troubleshooting
Breaker Control screen only shows Trip option
• Open and close commands are only available for electrically operated circuit breakers.
Breaker Control screen shows Open, Close and Trip options at the same time
• Circuit breaker contact position is unknown.
Breaker control screen appears grayed out
• User does not have permissions to control circuit breakers.
Breaker does not open when command is issued
• Verify remote racker is not in.