Siemens 7SJ85 - Application and Setting Notes

Figure 8-80
Overview of the Switching Sequences on the Device Display
Application and Setting Notes
The function block offers similar settings as the Control function block of a circuit breaker or disconnector (see
chapter 8.2.1 General Overview).
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Figure 8-81 Settings of the Switching Sequence Function Block
Parameter: Check switching authority
•
Default setting (_:101) Check switching authority = yes
With the Check switching authority parameter, you can determine whether the switching authority
should be checked before the execution of the switching sequence.
Parameter: Check double activat. blk.
•
Default setting (_:102) Check double activat. blk. = yes
With the Check double activat. blk. parameter, you can determine whether the double activation of
switching devices should be checked. The setting value yes indicates that a switching sequence will be
started only if no switching commands for a circuit breaker and disconnector are activated, provided that
double-activation blocking was activated for those switching devices.
Parameter: Time-out monitoring
With the Time-out monitoring parameter, you can determine whether the feedback from the process
should be evaluated. The feedback is gathered via the inputs
>Successful and >Failed .
Parameter: Monitoring time
•
Default setting (_:104) Monitoring time = 30.00 s
With the Monitoring time parameter, you can determine the duration of the monitoring time.
8.5.3
Control Functions
8.5 Switching Sequences
1172 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017