Siemens 7SJ85 - Cycle Control with Operating Mode 2: with Pickup;With Action Time

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Figure 6-301
Cycle Control with Operating Mode: With Tripping/With Action Time
Cycle Control with Operating Mode 2: With Pickup/With Action Time
The cycle control checks the readiness for each automatic reclosing cycle and controls the process of the
action time(s). In Figure 6-302, the cycle control is illustrated.
Cycle Availability
The cycle availability is influenced through the parameterization of the dead time and through a binary input.
In this way, setting the parameter Dead time aft.1ph. pickup to invalid avoids an automatic
reclosing after 3-pole tripping due to 1-phase short circuits. This also applies to Dead time aft.2ph.
pickup and Dead time aft.3ph. pickup. If all 3 dead times are set to invalid, the respective
reclosing cycle will be completely blocked. With the binary input
>Block 79 cycle , you can block the asso-
ciated automatic reclosing cycle.
6.45.4.7
Protection and Automation Functions
6.45 Automatic Reclosing Function
896 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017