User Manual

Diagrams
Connection cable with ferrules (color coded and labeled):
Wiring coding
Wiring labeling Wire color Terminal code Meaning
1 Brown (BR) G System potential AC 24 V
2 White (WT) G0 System zero AC 24 V
8 Green (GR) UC/YC Communications signal
(G0)
(YC)
5851G01
G, G0 Operating voltage AC 24 V
YC Communications signal
Internal diagram
With VAV c
ompact controller as of
series B
With VAV compact controller as of
series A
G
G0
A
C 24
V
N
(U)
(Y2) (Y1) (YC)
U
(G0)
(YC)
(G0)
X
G
G0
A
C 24 V
N
(UC)
(Y2) (Y1) (Y)
U
(G0)
(YC)
(G0)
X
N VAV compact controller
U Handheld tool AST10
X Terminal strip, e.g. in the panel
Conn
ection diagrams
Example with connecting
cable 74 424 0125 0
5 / 6
Siemens Handheld tool for VAV compact controller CM1N5851en
Building Technologies 07.10.2011