Siemens SIPROTEC 7SD80 User Manual

Preface
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
8
Besides these, graphical symbols are used according to IEC 60617-12 and IEC 60617-13 or symbols derived
from these standards. Some of the most frequently used are listed below:
■
Analog input variable
AND operation of input variables
OR operation of input variables
Exclusive OR (antivalence): output is active if only one of the inputs is
active
Coincidence: output is active if both inputs are active or inactive at the
same time
Dynamic input signals (edge-triggered) above with positive, below with
negative edge
Formation of one analog output signal from a number of analog input
signals
Threshold element with setting address and parameter names
Timer (pickup delay T adjustable) with setting address and parameter
names
Timer (dropout delay T not adjustable)
Edge-triggered time element with action time T
Static memory (SR flipflop) with setting input (S), resetting input (R),
output (Q) and inverted output (Q
), setting input dominant
Static memory (RS-flipflop) with resetting input (R) setting input (S),
output (Q) and inverted output (Q
), resetting input dominant

Siemens SIPROTEC 7SD80 Specifications

General

Brand	Siemens
Model	SIPROTEC 7SD80
Category	Protection Device
Language	English