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Functions
2.39.2 Setting Hints
Monitoring with
One Binary Input
258
0182
Trip Cir. Sup.
Disabled
with 2 Bin. Inp.
"1"
with 1 Bin. Inp.
FNo.
06852
>TripC trip rel
FNo.
06853
>TripC brk rel.
8201 TRIP Cir. SUP.
OFF
"1"
ON
FNo.
06851
>BLOCK TripC
Figure 2-126 Message Logic for the Trip Circuit Monitor
The function is only effective and accessible if it has been enabled during the
configuration of the protective functions at address 0182 Trip Cir. Sup. (Section
2.2) by setting one of the alternatives with 2 Binary Inputs or with 1 Binary
Input and provided that the required number of binary inputs is allocated to it and
that the function has been set at address 8201 TRIP Cir. SUP. = ON. If the
configuration of the binary inputs needed for this does not match the selected
monitoring type, then a message to this effect ("TripC ProgFail") is sent. If the trip
circuit monitor is not to be used at all, address 0182 should be set to Disabled.
Further settings are not needed. The message of a trip circuit interruption is delayed
by a fixed amount of time. For two binary inputs, the delay is about 2 seconds, and for
one binary input, the delay is about 300 ms. This ensures that the trip circuit monitor
waits until the longest possible duration of a trip signal has elapsed, and generates an
alarm only if there is a real malfunction in the trip circuit.
Note: When using only one binary input (BI) for the trip circuit monitor, some
malfunctions, such as interruption of the trip circuit or loss of battery voltage, can
indeed be detected, but malfunctions with closed trip contacts cannot. Therefore, the
measurement must take place over a period of time that bridges the longest possible
duration of a closed trip contact. This is ensured by the fixed number of measurement
repetitions and the time between the condition checks.
When using only one binary input, a resistor R is inserted into the circuit on the system
side, instead of the missing second binary input. Through appropriate sizing of the
resistor and depending on the system relationship, a lower control voltage can often
be sufficient. The resistor R is inserted into the circuit of the circuit breaker auxiliary
OR
&
&
Configured
&
Configured
S
Q
R
FNo.
TripC ProgFail
FNo.
TripC OFF
FNo.
Function
&
FAIL: Trip cir.
FNo.
TripC ACTIVE
FNo.
TripC BLOCKED
C53000-G1176-C149-3
06864
06861
06865
06863
06862
7UM62 Manual
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