Functions
6-157
7SJ63 Manual
C53000-G1140-C120-1
checked 500 times before an annunciation is sent. A condition check takes place
about every 600 ms, so trip circuit monitoring is only activated during an actual mal-
function of the trip circuit (after 300 s). After the malfunction in the trip circuit is cleared,
the failure annunciation is reset automatically.
Figure 6-67
Logic Diagram for Trip Circuit Monitoring with One Binary Input
Figure 6-68 shows the logic diagram for the message that can be generated by the trip
circuit monitor, depending on the control settings and binary inputs.
Figure 6-68
Message Logic for the Trip Circuit Monitor
6.17.6 Programming Settings for Trip Circuit Monitor
Trip circuit monitoring is only in effect and accessible if address
was set to either
%LQDU\,QSXWV
or to
%LQDU\,QSXW
, and the appropriate number of binary
inputs have been masked for this purpose. Trip circuit monitoring can be turned
21
and
2))
at address
)&77&
. If the masking of the required binary inputs
does not match the selected monitoring type, then a message to this effect is gener-
ated. If the trip circuit monitor is not to be used at all, then address
should be set
to
'LVDEOHG
. Further settings are not needed. The message of a trip circuit interrup-
&
>74 TC trip rel.
52a Contact
FAIL: Trip cir.
n
n.. .....Number of Condition Checks (= 500)
>
(Measurement Repetition Occurs every 600 ms)
)
)
7ULS&W6XSY
74 TC ProgFail
74 TC OFF
74 TC BLOCKED
“1“
)&77&
„1“
or
>74 TC trip rel.
&
&
&
&
S Q
R
>BLOCK 74 TC
>74 TC brk rel.
&
FAIL: Trip cir.
74 TC ACTIVE
Function
Configured
Configured
)
)
)
)
)
)
)
)
2))
21
'LVDEOHG
ZLWK%LQDU\,QSXWV
ZLWK%LQDU\,QSXW
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