CM1N4573E / 06.2001
Siemens Building Technologies
2/8
Landis & Staefa Division
Connector S1 (under the cover, on the printed circuit board) can be repositioned to
change the flow characteristic of valves with a 5.5 mm stroke from “equal percentage” to
“linear”; in all cases the flow characteristic relates to the through-port of the valve.
•
Connecting S1 to pins A and C produces an equal percentage flow characteristic
(factory setting), primarily for heating applications
•
Connecting S1 to pins B and C produces a linear flow characteristic,
primarily for cooling applications
•
For automatic operation, S1 must be connected either to pins A and C, or B and C,
depending on the required flow characteristic.
S1 connected to: A and C
(equal-percentage flow characteristic)
S1 connected to: C and B
(linear flow characteristic)
A C B
V
UY
V
UY
01161
R - M
A C B
S1
U
M
R
Y
G
G0
0...10V-
max.0,5mA
0..-1kW
0...10V-
0...1mA
24V~
A C
A C B
V
UY
V
UY
01162
R - M
A C B
S1
U
M
R
Y
G
G0
0...10V-
max.0,5mA
0..-1kW
0...10V-
0...1mA
24V~
C B
Relationship between the DC 0…10 V
or DC 2…10 V control signal and the
volumetric flow rate
Control signals:
Y
=
DC 0 ...10 V or DC 2...10V
R
=
0...1000
Ω
Flow characteristic
log
=
Equal-percentage valve characteristic
(factory setting)
lin
=
Linear valve characteristic
Flow range
k
V100
=
Volumetric flow 100%
k
V0
=
Volumetric flow 0 %
Volumetric flow rate
lin
lo
g
45
73
D
0
1
k
V100
k
V0
0 V
2 V
10 V
10 V
Control-
signal
Type
Operating
voltage
Type of control
(Control signal)
Run-time
[s]
Spring-
return
function
Spring-
return time
[s]
SQS35.00
150
No
---
SQS35.03
AC 230 V
3-position
35
SQS35.50
150
Yes
8
SQS35.53
35
SQS65.5
DC 0...10 V
Yes
8
SQS65
35
SQS65.2
AC 24 V
DC 2...10 V
No
---
SQS85.00
3-position
150
SQS85.03
35
Name
Type
For actuators
Space for
Auxiliary switch
ASC9.6
SQS35.00, SQS35.03
SQS85.00, SQS85.03
1 x ASC9.6
When ordering, please specify the quantity, product name, type, and any accessories
required.
Example: 1 actuator, type SQS35.00 and 1 auxiliary switch type ASC9.6
The actuator, valve and accessories are packed separately and not assembled prior to
delivery.
SQS65...
Selecting the flow
characteristic
Position of S1
Flow characteristic
Types
Accessories
Ordering
Delivery
