Siemens SIPROTEC 4 7SD80

Bu1 Push-button “Switching off the differential protection commissioning mode”
BU2 Push-button “Switching on the differential protection commissioning mode”
[logik-ibs-modus-ext-schalter, 1, en_US]
Figure 2-23 External switch wiring for controlling the differential protection commissioning mode
S Switch “Switching the differential protection commissioning mode on/off”
1) Binary input as make contact
2) Binary input as break contact
Functions
2.2 Phase Comparison Protection and Ground Differential Protection
68 SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018