Siemens Building Technologies
CM1N4573E / 06.2001
Landis & Staefa Division
7/8
Connection terminals
SQS65….
G
Y
R
M
U
G0
45
73
G
0
3
G, G0
Operating voltage AC 24 V
G
System potential (SP) corresponds to LS on SQS65.2
G0 System neutral (SN) corresponds to NS on SQS65.2
Signal inputs
Y
SQS65, SQS65.5
DC 0...10 V
SQS65.2
DC 2...10 V
RSQS65, SQS65.2, SQS65.50 ...1000 ohms
M
Measuring neutral
USignal output
SQS65, SQS65.2, SQS65.5
DC 0...10 V
All connection options are illustrated in the connection diagrams. How many and which
of these are used, depends on the system.
If a device is connected to terminal R, the factory-fitted bridge across R – M on the
printed circuit board must be cut through.
SP
SN
Y
(1,2,3)
R
M
M
R
G0
Y
G
Y(Y')
R
M
U
GO
AC
2
4
V
N1
R1
F1
K1
P1
Y1
45
73
A
0
1
G
SP
SN
LS
NS
Y (1,3)
R
M
G
Y
G0
R
M
M
R
U
G0
Y
G
45
73
A
0
2
AC
2
4
V
N1
R1
F1
P1
K1
Y1
Equipment
F1
Frost detector
K1
On/off switch
N1
CLASSIC controller
P1
Position indicator
R1
Position transmitter
K1
On/off switch
N1CLASSIC controller
P1Position indicator
R1Position transmitter
Y1Actuator
Connection
diagrams
Note
SQS65, SQS65.5
(AC 24 V, DC 0 ...10 V)
SQS65.2
(AC 24 V, DC 2 ...10 V)
