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4.9.
50BF Function. Circuit Breaker opening fault
The settings of this function are as follows:
Function
Description
Minimum
Maximum
Pitch
Unit
Default
50BF
Circuit breaker opening fault (*)
Permission
-
-
Yes/No
-
No
Opening fault time
0,02
1,00
0,01
s
0,2
(*) Optional depending on model
The following automaton describes the open fault function:
When the “50BF Init” state is activated, a switch is made to the "50BF init” and time is counted. If,
following the adjusted open fault time, the switch is not detected to have open, the function trips. The
function is reset when the circuit breaker is detected to have opened, and the “50BF Init” state has
been reset.
To monitor the circuit breaker opening the current measurement via the three phases is used. When
the current via the three phases is less than 8% of the rated current, the circuit breaker is considered
to be open.
The “50BF Start” state is an adjustable logic output. The default configuration is shown below:
•
Opening fault input activation (50BF init)
•
Circuit breaker opening from an HMI/local modbus
•
Circuit breaker opening from a remote modbus
•
General trip
Summary of Contents for SIA-F
Page 7: ...www fanox com Rev 17 7 119 2 DIMENSIONS AND CONNECTION DIAGRAMS 2 1 Frontal view...
Page 8: ...www fanox com Rev 17 8 119 2 2 Case dimensions The dimensions are in mm CUT OUT PATTERN...
Page 9: ...www fanox com Rev 17 9 119 2 3 Connection diagram 3 Phase CT and neutral CT Connection...
Page 10: ...www fanox com Rev 17 10 119 3 Phase CT and residual neutral Connection...
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Page 118: ...www fanox com Rev 17 118 119 NOTES...
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