Siemens siprotec 7SA522 User Manual page 407

Command Output
and Switching
Relays
7SA522 Manual
C53000-G1176-C119-2
The "plus" appearing in a feedback information confirms that the command was suc-
cessful, the command was as expected, in other words positive. The "minus" is a neg-
ative confirmation and means that the command was not fulfilled as expected.
The command types needed for tripping and closing of the switchgear or for raising
and lowering of transformer taps are described in Section 5.2 and Subsection 5.2.1.
Functions
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