V01284
CB2 I^ Maint
CB2 I^ Maint
Alarm Enabled
&
CB2 I^ Maint
&
1 CB2 Monitor Alm
R
Q
S
CB2 I^ Lockout
&
CB2 I^ Lockout
Alarm Enabled
CB2 I^ Lockout
No.CB2 Ops Maint
Alarm Enabled
&
No.CB2 Ops Maint
&
R
Q
S
No.CB2 Ops Maint
No.CB2 Ops Lock
&
No.CB2 Ops Lock
Alarm Enabled
No.CB2 Ops Lock
-1
&
CB2FltFreqLock
Alarm Enabled
&
CB2FltFreqCount
R
Q
S
CB2FaultFreqLock
-1
&
1 CB2 Pre-Lockout
CB2 Time Maint
CB2 Time Maint
Alarm Enabled
&
CB2 Time Maint
&
R
Q
S
CB2 Time Lockout
&
CB2 Time Lockout
Alarm Enabled
CB2 Time Lockout
1 CB2 Mon LO Alarm
Reset CB2 Data
Yes 1
Rst CB2 Data
1
Control CB2 Unhealthy
CB2 Control no Check Synch
CB2 failed to trip
CB2 failed to close
Reset CB2 Lockout Alarm
R
Q
S
CB2 LO Alarm
Clear Alarms
Greatest broken current total
Max no. of CB operations
Fault frequency count
Greatest CB operate time
Figure 232: CB2 Condition Monitoring logic diagram
5.7
RESET CIRCUIT BREAKER LOCKOUT
Lockout conditions caused by the circuit breaker condition monitoring functions can be reset according to the
condition of the Rst CB mon LO by setting found in the CB CONTROL column. There are two options; CB Close
and User interface.
If set to CB Close, a timer setting, CB mon LO RstDly, becomes visible. When the circuit breaker closes, the CB
mon LO RstDly time starts. The lockout is reset when the timer expires.
If set to User Interface then a command, CB mon LO reset, becomes visible. This command can be used to
reset the lockout from a user interface.
An Autoreclose lockout generates an Autoreclose lockout alarm. Autoreclose lockout conditions can be reset by
various commands and setting options found under the CB CONTROL column.
P446SV Chapter 16 - Monitoring and Control
P446SV-TM-EN-1 423
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