Siemens SQS35.53 User manual

Siemens Building Technologies CM1N4573E / 06.2001
Landis & Staefa Division 1/8
4573
Electric actuators
for valves with
a 5.5 mm stroke
SQS35...
SQS65...
SQS85...
SQS35.50, SQS35.53 SQS35.00, SQS35.03, SQS65, SQS65.2
SQS65.5 SQS85.00, SQS85.03
with spring return / without manual adjustment without spring return / with manual adjustment
Electric actuators
•SQS35... AC 230 V operating voltage, 3-position control signal
•SQS85...AC 24 V operating voltage, 3-position control signal
•SQS65... AC 24 V operating voltage, DC 0 ...10 V or DC 2 ... 10 V control signal
•Positioning force 400 N
•Stroke 5.5 mm
•For direct mounting on valves, without adjustment
•Optional auxiliary switch for additional functions with SQS35.00, SQS35.03,
SQS85.00 and SQS85.03
•Choice of actuators
with or without spring return function to DIN 32 730
•Non-spring return actuators
with position indication and with manual
adjustment
•Spring return actuators
with position indication and without manual
adjustment
Used to operate 2-port and 3-port valves with a 5.5 mm stroke. For valve types VVG44...,
VVG55..., VVP45..., VMP43..., VMP44..., VMP45..., VXG44..., VXP45..., VVI52...
•Area of application in accordance with IEC 721-3-3 Class 3K5
•Ambient temperatures:−5 ... +50 °C
•Temperature of medium in the connected valve:+2 ...+130 °C
•The use of mounting kit ASK30 enables the following valves with a 4mm or 5.5 mm
stroke to be operated: X3i..., VVG45..., VXG45..., VXG46... and VVI51...
The reversible synchronous motor is driven with a 3-position control signal (SQS35…
and SQS85…) or a proportional DC 0…10 V (SQS65, SQS65.5) or DC 2...10 V
(SQS65.2) control signal. The corresponding stroke is generated via an anti-locking
gear mechanism.
3-position control at terminals Y1 or Y2:
•Voltage at Y1: Valve stem retracts, through-port opens
•Voltage at Y2: Valve stem extends, through-port closes
•No voltage at Y1 or Y2: Valve stem holds current position
Application
Functions
3-position or proportional
control signal

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: AandC
(equal-percentage flow characteristic) S1 connected to: CandB (linear flow characteristic)
ACB
V
UY
V
UY
01161
R-M
ACB
S1 U
M
R
Y
G
G0
0...10V-
max.0,5mA
0..-1kW
0...10V-
0...1mA
24V~
AC
ACB
V
UY
V
UY
01162
R-M
ACB
S1 U
M
R
Y
G
G0
0...10V-
max.0,5mA
0..-1kW
0...10V-
0...1mA
24V~
CB
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
l
in
l
o
g
4573D01
kV100
kV0 0V
2V
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

Siemens Building Technologies CM1N4573E / 06.2001
Landis & Staefa Division 3/8
The following 5.5 mm stroke, threaded two-port and three-port valves can be operated
with electric actuator types SQS35... , SQS65... and SQS85...
Type DN [mm] PN [bar] Data sheet
Two-port valves
VVG44... 15 ... 40 16 N4364
VVP45... 10 ... 20 16 N4845
VMP43...(2) 15, 20 16 N4841
VMP44...(2) 15, 20 16 N4844
VVG55... 15 ... 25 25 N4379
VVI52... 15 25 N4377
Three-port valves
VXG44... 15 ... 40 16 N4464
VXP45... 10 ... 20 16 N4845
VMP43... 15, 20 16 N4841
Three-port valves with bypass "T"
VMP45... 10 ... 20 16 N4845
VMP43...(4) 15, 20 16 N4841
VMP44...(4) 15, 20 16 N4844
The admissible differential pressure values ∆pmax and ∆psfor the complete motorised valve are shown in
the relevant valve data sheets.
•Electric actuator, no maintenance required
•Reversible synchronous motor
•Anti-locking gear mechanism
•SQS35.50, SQS35.53, SQS65.5 have spring return function to DIN 32730
•Load-dependent switch-off in stroke limit positions
•Selectable flow characteristic:equal percentage or linear for SQS65…actuators in
conjunction with valve types VVG44..., VVI52... and VXG44...
•Directly impacting manual adjustment for all non-spring-return actuators: SQS35.00,
SQS35.03, SQS65, SQS65.2, SQS85...
•Position indicator on all SQS35..., SQS65..., SQS85... actuators
•Accommodation for auxiliary switch type ASC9.6 on the SQS35.00, SQS35.03,
SQS85.00 and SQS85.03 actuators. An auxiliary switch (
not the ASC9.6) is built in
as standard in actuator types SQS35.50 and SQS35.53 actuators.
3
1
2
4573Z03
SQS35.00, SQS35.03
SQS65, SQS65.2
SQS85...
1 Manual adjustment
2 Position indication
3 Coupling bolt for valve neck
675
01163
UMRYGG0
R-M
ACB
S1
675
01163
UMRYGG0
R-M
ACB
S1
SQS35..., SQS85...
5 Terminal strip
6 Auxiliary switch built-in as standard in
SQS35.50 and SQS35.53
SQS65...
5 Terminal strip
6«lin»/«log»connection
7Bridge R−
−−
−M
Compatibility
Mechanical design
Manual adjustment
Terminal strip, auxiliary
switch etc.

CM1N4573E / 06.2001 Siemens Building Technologies
4/8 Landis & Staefa Division
ASC9.6 auxiliary switch
Suitable for actuator types SQS35.00,
SQS35.03, SQS85.00 and SQS85.03
Switching point adjustable from 0…100% stroke
See “Technical data”for further information on
accessories
4573Z04
The actuator must be dismantled and separated into its various constituent materials
before disposal.
The actuators must be electrically connected in accordance with local regulations and
with the connection diagrams.
Regulations and requirements to ensure the safety of people and property must
be observed at all times.
With the SQS65… actuators, the connector used to select the flow characteristic
must be set to “lin” for valve types VVG55..., VMP..., VVP... and VXP...
The admissible temperatures (see “Application”and “Technical data”)mustbe
observed. If an auxiliary switch is required, its switching point must be indicated on the
plant schematic.
Permissible Not permissible
Instructions for fitting the actuator to the valve are shown on the back of the actuator
housing. The instructions for accessories are enclosed with the accessories
themselves.
When commissioning the system, check the wiring and functions. In addition, set the
auxiliary switch or check the settings.
4573Z07
4573Z08
Stroke «0»= Valve closed Stroke «I»= Valve open
Manual adjusterTurning the manual adjuster in an anti-clockwise direction causes
Landis & Staefa valves with a 5.5 mm stroke to close (= 0% stroke).
Accessories
Disposal
Engineering
Caution:
SQS65...
Mounting
Orientation
4573Z09
Commissioning

Siemens Building Technologies CM1N4573E / 06.2001
Landis & Staefa Division 5/8
Used in conjunction with valve types VVG44..., VVI52... or VXG44..., these actuators
generate a linear flow characteristic.
In conjunction with valve types VVG44..., VVI52... or VXG44... these actuators generate
an equal-percentage flow characteristic (factory-setting) via the integrated electronic
assembly. The flow characteristic can be changed to “linear”by repositioning the
connector.
The technical data (∆pmax,∆ps, leakage rates, noise levels, service life etc.) given for the
applications described applies only to the Landis & Staefa valves listed in this data
sheet under “Compatibility”.
The use of type SQS…actuators in conjunction with third-party valves invalidates
all claims under the Landis & Staefa warranty.
When servicing the valve: switch OFF the pump and power supply, close the main shut-
off valve in the pipework, release pressure in the pipes and allow them to cool down
completely. If necessary, disconnect electrical connections from terminals.
The actuator must be correctly fitted to the valve before re-commissioning.
Operating voltage
SQS35... AC 230 V ± 15 % , 50 / 60 Hz
SQS65... AC 24 V ± 20 % , 50 / 60 Hz
SQS85... AC 24 V ± 20 % , 50 / 60 Hz
Power consumption
SQS35.00 2.5 VA
SQS35.03 3.5 VA
SQS35.50 5 VA
SQS35.53 6 VA
SQS65, SQS65.2 4.5 VA
SQS65.5 7 VA
SQS85.00 2 VA
SQS85.03 2 VA
Switching capacity of limit switchesTerminals 11 or 12
SQS35..., SQS85... AC 250 V, 6 A resistive / 2.5 A inductive
Type of control (control signal)
SQS85... 3-position
SQS65, SQS65.5 DC 0...10 V (proportional)
SQS65.2 DC 2...10 V (proportional)
Run-time Opening or closing
SQS35.00, SQS35.50, SQS85.00 150 s at 50 Hz
SQS35.03, SQS35.53, SQS85.03 35 s at 50 Hz
SQS65, SQS65.2, SQS65.5 35 s at 50 Hz
Spring return feature
SQS35.50, SQS35.53, SQS65.5 Closing time 8 s
Positioning force 400 N
Stroke 5.5 mm
Terminal Y (SQS65, SQS65.5) DC 0 ... 10 V, max. 0.1 mA
Terminal Y (SQS65.2) DC 2 ... 10 V, max. 0.1 mA
Terminal R (SQS65, SQS65.5, SQS65.2) Resistance 0 ...1000 Ω
Terminal U (SQS65, SQS65.5, SQS65.2) DC 0 ...10 V, max. 0.5 mA
Housing protection standard IP54 to EN 60529
Cable glands Pg11 (2 x)
Temperature of medium in the connected valve +2 ... +130 °C
SQS35... / SQS85...
SQS65...
Warranty
Maintenance
Technical data
Power supply
Operating data
Signal inputs
Signal outputs
Housing protection standard
Ambient conditions

CM1N4573E / 06.2001 Siemens Building Technologies
6/8 Landis & Staefa Division
Operation To IEC 721-3-3
Environmental conditions Class 3K5
Temperature −5 ... +50 °C
Humidity 5... 95 %rh
Transport To IEC 721-2-3
Environmental conditions Class 2K3
Temperature −25 ... +70 °C
Humidity < 95 %rh
Storage To IEC 721-1-3
Environmental conditions Class 1K3
Temperature −5 ... +50 °C
Humidity 5 ... 95 %rh
Meets the requirements for CE marking:
EMC Directive 89/336/EEC
Low Voltage Directive 73/23/EEC
Dimensions See “Dimensions”
Weight
SQS35.00, SQS35.03, SQS65, SQS65.2,
SQS85.00, SQS85.03
Excluding packaging 0.5 kg
With packaging 0.6 kg
SQS35.50, SQS35.53, SQS65.5
Excluding packaging 0.6 kg
With packaging 0.7 kg
Actuator housing Plastics
Housing cover and manual adjuster Plastics
Gear train and stem with coupling Plastics
ASC9.6 auxiliary switch for SQS35…and SQS85…
Switching capacity AC 250 V, 10 A resistive / 3 A inductive
∼
M
4573G01
Y1 3Y2
100% 0%
11 12NL45
Cm1 Cm2 c1 ∼
21 Y1 Y2 H4
NM
100% 0% max. 50%
0%
M
n
Cm1 Cm2
c2
4573G02
SQS35.00, SQS35.03
AC 230 V, 3-position, non-spring return
Cm1Limit switch 100 % stroke
Cm2 Limit switch 0 % stroke
c1 ASC9.6 auxiliary switch can be fitted
L Volt-free loop terminal for live wire
SQS35.50, SQS35.53
AC 230 V, 3-position, with spring return
c2 Built-in auxiliary switch with fixed preset
minimum flow limit control.
(Factory-fitted, not accessory like ASC9.6)
∼
M
90190
Y1 3Y2
100% 0%
11 12GL45
Cm1 Cm2 c1
SQS85.00, SQS85.03
AC 24 V, 3-position, non-spring return
Cm1Limit switch 100 % stroke
Cm2Limit switch 0 % stroke
c1 ASC9.6 auxiliary switch can be fitted
L Volt-free loop terminal for live wire
Industry standards
Dimensions / Weight
Materials
Accessories
Connection
diagram
SQS35...
SQS85...

Siemens Building Technologies CM1N4573E / 06.2001
Landis & Staefa Division 7/8
Connection terminals
SQS65….
GYRMU
G0
4573G03
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 –Monthe
printed circuit board must be cut through.
SP
SN
Y(1,2,3) RM MRG0Y
GY(Y')RM U
GO
AC 24 V
N1 R1 F1 K1P1
Y1
4573A01
G
SP
SN
LS
NS Y (1,3) RM
GY
G0
RM
MR
U
G0
Y
G
4573A02
AC 24 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)

CM1N4573E / 06.2001 Siemens Building Technologies
8/8 Landis & Staefa Division
All dimensions in mm
60 68
128
28 88
120
134
G¾"
80
32
111*
ø18,5
(Pg 11)
4573M01
*Height of actuator after fitting on valve
> 100 mm Minimum clearance from wall or ceiling
> 200 mm for mounting, connection, operation, service etc.
Dimensions
ã2000 Siemens Building Technologies Ltd. Subject to changes