Siemens SQN72 Series - Circuit Diagrams and Control Sequences (LFL;LGK16;LAL;LOK16); LFL;LGK16;LAL;LOK16 2-Stage;Modulating Operation

16/20
Smart Infrastructure CC1N7802en
8/11/2021
Circuit diagrams (examples)
No. C  LFL / LGK16 / LAL / LOK16
2-stage or modulating operation  prepurging at high-fire position (NL)
X1
Plug
-
in space, 4
-
pole
X2
Plug
-
in space, 5
-
pole
I
II
III
IV
red
blue
orange
black
Program sequence diagram
shows modulating operation.