CBF will be enabled by a positive edge of the input signal and disabled by a
negative edge. If only the parameter CBF_1: Disable EXT has been assigned
to a binary signal input, then a signal at this input will have no effect.
64Z1101A
U x1
U x2
U x3
U xx
038 042
CBF_1:
Enable EXT
[ 038 041 ]
CBF_1:
Disable EXT
[ 038 042 ]
038 041
INP:
Fct. assignm. U xxx
[ xxx xxx ]
CBF_1:
General enable USER
[ 022 080 ]
0
0: No
1
CBF_1:
Enable USER
[ 003 016 ]
0: don't execute
CBF_1:
Disable USER
[ 003 015 ]
0: don't execute
0
1
0
1
CBF_1:
Ext./user enabled
[ 038 040 ]
CBF_1:
Enabled
[ 040 055 ]
1: Yes
Address
Address
1: execute
1: execute
Fig. 3-159: Enabling or disabling circuit breaker failure protection, illustrated for CBF_1
3.31.5 Readiness of Circuit Breaker Protection
Circuit breaker failure protection will not be available should one of the following
conditions be met:
●
The CBF function is not activated.
●
Circuit breaker protection is being blocked by an appropriately configured
binary signal input.
●
All CBF timer stages have been set to “Blocked”.
3 Operation
P634
P634/EN M/R-42-A // P634‑311‑653 3-205
To Next Page
Loading...
