Siemens SSD161S.05DU User manual

Electromotoric actuator
SSD161S.05DU, SSD161S.25DU, SSD131.29U
For Powermite MT Series 2-way and 3-way globe valves
●SSD161S.05DU (fail-in-place), and SSD161S.25DU (fail-safe): Operating voltage
AC/DC 24 V, modulating control signal DC 0...10 V
●SSD131.29U (fail-safe): Operating voltage AC 24 V, 3-position (floating) control
signal
●All actuators are self-calibrating to the valve stroke
●Modulating variants have position feedback signal
●Modulating variants are DIP switch configurable for equal percentage/linear flow
characteristic, direct/reverse acting, and the fail-safe variant for fail up/fail down
●3-position (floating) fail-safe variant is DIP switch configurable for fail up/fail down
●Direct mounting with coupling nut, no tools required
●Manual override
●Position and actuator motion indication (LED)
●Positioning force 67 lbf (300 N)
●Parallel operation of multiple actuators possible
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023

2
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
Use
●For Normally Open and Normally Closed applications using Normally Open PICV Series
–0.5 inch, 599-04320-XX and 599-04321-XX
–0.75 inch, 599-04322-XX
–1 inch, 599-04323-XX
–1.25 inch, 599-04314-XX
●Replacement only for SSD61_U or SSD81.5U actuators on Normally Closed PICV
Series
–0.5 inch, 599-04300-XX and 599-04301-XX
–0.75 inch, 599-04302-XX and 599-04303-XX
–1 inch, 599-04304-XX
–1.25 inch, 599-04305-XX
●Typical application in chilled ceiling, VAV, unit ventilators, fan coil unit and other terminal
unit applications
●Max.10 units of SSD161S.05DU, SSD161S.25DU can operate in parallel, provided the
controller output suffices.
●For 3-position actuator, SSD131.29U, 24 actuators can run in parallel.
NOTICE
●SSD131.29U floating fail-safe actuators cannot be run in parallel with legacy SSD81.5U
actuators.
●For parallel operation of floating fail-safe SSD actuators all actuators in parallel must be
the same part number.
Technical design
When the actuator is driven by DC 0…10 V control voltage or floating control signal, it is
converted to a mechanical stroke which controls the position of valve stem.
3-position control signal (for SSD131.29U only)
●Voltage at Y1:
Stem extends
Normally open valve closes,
normally closed valve opens
●Voltage at Y2:
Stem retracts
Normally open valve opens,
normally closed valve closes
●No voltage at Y1 or Y2:
Actuator maintains its current position
●Voltage applied to both Y1
and Y2 (not recommended):
When no power is supplied, the
SSD131.29U actuator fails with
either the stem fully retracted or
fully extended, depending on the
position of the associated fail
up/fail down DIP switch.
Stem moves to Y2

3
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
DC 0...10 V control signal (for SSD161S.25DU, SSD161S.05DU)
●The valve opens / closes in proportion to the con-
trol signal at Y. The SSD161… actuators can be
set to either a linear or equal percentage control
signal response, depending on the position of the
associated flow characteristic DIP switch.
●At DC 0 V, actuator stem will be either extended or
retracted, resulting in the valve being either fully
closed or open, depending on the position of the
associated direct/reverse acting DIP switch and
whether the valve is a normally open or normally
closed valve.
●When no power is supplied, the SSD161S.05DU
actuator maintains its current position and the
SSD161S.25DU fails with either the stem fully
retracted or fully extended, depending on the
position of the associated fail up/fail down DIP
switch.
●This actuator provides a DC 0…10 V position
feedback signal proportional to the stroke of the
actuator stem.
Y = Control signal Y [V]
H = Percentage of calibrated valve stroke
LED indication
Status
LED indication patterns
Variants
SSD161S.05DU, SSD161S.25DU, SSD131.29U
Modulation: Stem
retracting
Flashing green in sequence: LED1-->LED2-->LED3 (500 ms each)
Modulation: Stem
extending
Flashing green in sequence: LED3-->LED2-->LED1 (500 ms each)
Stem position
At H0 (fully extended or fully retracted based on position of direct/reverse acting DIP
switch) to H40: Constant green (LED3)
At H40 to H60: Constant green (LED2)
At H60 to H100 (fully retracted or fully extended based on position of direct/reverse acting
DIP switch): Constant green (LED1)
Fail-safe*
Flashing red (LED2): 500 ms on, 500 ms off
Calibration
Flashing green (LED2): 100 ms on, 100 ms off
Error
Constant red (LED2)
Manual operation
Flashing green/red alternatively (LED2): Green 500 ms, red 500 ms
Ultra-cap initial
charging*
Constant green & red simultaneously (LED2): Constant orange
* Only available for SSD161S.25DU, SSD131.29U

4
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
Type summary
Type
Stock number
Operating
voltage
Running
speed
Running time
5.5 mm
Control signal
Actuator
characteristic
SSD161S.05DU
S55180-A154
AC/DC 24 V
5 s/mm
27.5 s ±25 %
DC 0...10 V
Linear or equal
percentage
(selectable)
SSD161S.25DU
S55180-A155
AC/DC 24 V
5 s/mm
27.5 s ±25 %
DC 0...10 V
Linear or equal
percentage
(selectable)
SSD131.29U
S55180-A153
AC 24 V
16 s/mm
88 s ±25 %
AC 24 V
-
Ordering
When ordering, specify both type and quantity.
Example:
Type
Stock number
Designation
Quantity
SSD161S.05DU
S55180-A154
Electromotoric actuator
2
Delivery
Valves and actuators can be ordered assembled in the factory or ordered separately. For
easier valve assembly, actuators ordered separately have the actuator stem fully retracted.
Equipment combinations
Valves
Combinable valves for SSD161S.05DU, SSD161S.25DU and SSD131.29U - 2-way PICV
Series –0.5 inch
Nominal Line Size
Normally Closed (for
replacement only of
SSD61_U actuators)
For Normally Open or
Normally Closed
applications
Inch
mm
0.5
15
599-04300-XX
599-04320-XX
0.5
15
599-04301-XX
599-04321-XX
Combinable valves for SSD161S.05DU, SSD161S.25DU and SSD131.29U - 2-way PICV
Series –0.75 inch
Nominal Line Size
Normally Closed (for
replacement only of
SSD61_U actuators)
For Normally Open or
Normally Closed
applications
Inch
mm
0.75
20
599-04302-XX
599-04322-XX
0.75
20
599-04303-XX

5
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
Combinable valves for SSD161S.05DU, SSD161S.25DU and SSD131.29U - 2-way PICV
Series –1 inch
Nominal Line Size
Normally Closed (for
replacement only of
SSD61_U actuators)
For Normally Open or
Normally Closed
applications
Inch
mm
1
25
599-04304-XX
599-04323-XX
Combinable valves for SSD161S.05DU, SSD161S.25DU and SSD131.29U - 2-way PICV
Series –1.25 inch
Nominal Line Size
Normally Closed (for
replacement only of
SSD61_U actuators)
For Normally Open or
Normally Closed
applications
Inch
mm
1.25
32
599-04305-XX
599-04314-XX
Note: To ensure trouble-free operation of
third-party valves with the SSD.. actuators,
the valves must satisfy the following
requirements:
●Threaded connections with coupling nut
M30 ×1.5.
●Nominal force F > 67 lbf (300 N)
●Dimension X ≥ 0.33 in (8.3 mm)
●Dimension Y ≤ 0.58 in (14.8 mm)
Product documentation
Topic
Title
Document ID
Installation
Mounting instruction
A6V13122038
Standards and directives
CE declarations
A5W00254962A
RCM conformity
A5W00254983A
Environmental compatibility
Environmental declarations for
SSD161S.05DU
A5W00242127A
Environmental declarations for
SSD161S.25DU, SSD131.29U
A5W00244689A
Related documents such as the environmental declarations, CE declarations, etc., can be
downloaded from the following Internet address:
www.siemens.com/bt/download
Notes
Engineering
The actuators must be electrically connected in accordance with local regulations (see
"Connection diagrams [▶16]”).

6
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
CAUTION
National safety regulations
Failure to comply with national safety regulations may result in personal injury and property
damage.
●Observe national provisions and comply with the appropriate safety regulations.
Observe permissible temperatures (see "Technical data [▶12]").
Mounting
WARNING
●Do not use pipe wrenches, pliers or similar tools.
●Avoid lateral pressure or (cable) tension on the mounted actuator!
Valve and actuator are easy to assemble on site before commissioning:
●Remove protective cover from the valve body.
●Position the actuator and tighten the connection nut manually.
●See "Mounting instruction" for graphical instructions.
Orientation
Commissioning
When commissioning, check both wiring and functioning of the actuator.
●Actuator stem extends
Normally open valve closes, normally closed valve opens
●Actuator stem retracts
Normally open valve opens, normally closed valve closes
NOTICE
The actuator must be commissioned only with a correctly mounted valve in place!
Self-calibration
When operating voltage is applied, the actuators self-calibrate (fully retracted ➙fully
extended ➙setpoint).

7
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
CAUTION
Never intervene manually during self-calibration.
NOTICE
●Correct calibration is only possible with valve stroke > 0.05 inch (1.2 mm). Valve stroke
< 0.05 inch (1.2 mm) results in calibration failure.
●If calibration fails, the actuator performs another calibration automatically after
10 seconds.
●After three failed calibration attempts, the actuator stem remains in the extended
position and the valves are open.
Electrical fail-safe function (for SSD161S.25U, SSD131.29U only)
When first connected to power, or after a power failure, the capacitor which stores energy for
the fail-safe function will be charged. This process takes up to 180 seconds. While the
capacitor is being charged, the actuator cannot respond to any control signals.
In the event of a power failure of more than 5 seconds, the actuator will return to its fail-safe
position within 30 seconds.
Manual operation
A 3-mm Allen wrench can be used to move the actuator to any position.
To move the actuator stem manually
1. Open the cover using a proper screwdriver.
2. Press and hold down button (a) illustrated below for at least three seconds.
–The actuator ignores any control signal from the controller.
3. Adjust the position of the actuator stem by rotating Allen wrench (b) illustrated below
clockwise or counter-clockwise.
–The actuator stem moves down if you rotate clockwise; it moves up if you rotate
counter-clockwise. The manually set position is retained.
Power
On
Calibration Y
t
Fully retracted
Fully extended

8
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
4. To release the actuator from manual operation mode, press and hold down button (a)
illustrated below again for at least three seconds.
–The actuator runs a self-calibration automatically. Control signal sent from the
controller takes effect.
5. Close the cover.
NOTICE
If operating voltage is applied to actuator, press button (a) before and after manually
adjusting the position of the actuator stem. If no operating voltage and control signal are
applied, manual operation can be done without pressing button (a).
A6V11858278Z12
3 mm
(b)
(a)
> 3s

9
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
Cabling operation
1. Unscrew cover screw
2. Remove cover
3. Remove terminal block and connect or disconnect wire terminals
4. Re-install the terminal block
5. Install the cover
6. Screw in the cover screw

10
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
DIP switch configurations
DIP Switches
Product types
SSD161S.25DU
SSD161S.05DU
SSD131.29U
Running direction
Direct
Stem extends as voltage increases
Reverse
Stem retracts as voltage increases
Stroke characteristic
EQ
Stroke control provides equal percentage flow
characteristic
LIN
Stroke control provides linear flow characteristic
Fail direction
Fail-up
Stem retracts to end position
Fail-down
Stem extends to end position
Note: The factory settings of all switches are off by default.
Maintenance
The actuators require no maintenance.

11
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
WARNING
Operating voltage must be switched off during any maintenance!
NOTICE
When carrying out service work on the plant, note the following:
●Switch off operating voltage.
●If necessary, disconnect electrical connections from the terminals.
●The actuator must be commissioned only with a correctly mounted valve in place!
Repair
The actuators cannot be repaired; the complete unit must be replaced.
Disposal
The device is considered an electronic
device for disposal and may not be disposed
of as domestic waste.
●Dispose of the device through channels
provided for this purpose.
●Comply with all local and currently
applicable laws and regulations.
Warranty
Technical data on specific applications are valid only together with Siemens products listed
under "Equipment combinations". Siemens rejects any and all warranties in the event that
third-party products are used.
Open Source Software (OSS)
Software license overview
These devices use Open Source Software (OSS). All Open Source Software components
used in the product (to include copyrights and licensing agreement) are available at
http://siemens.com/bt/download.
Firmware version
OSS document
Device
Document ID
Title
2.10.0 or above
A6V13503690
Readme OSS for Modulating Room Actuator 200N, 300N
All

12
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
Technical data
Power supply
Operating
voltage
SSD161S.05DU,
SSD161S.25DU
AC 24 V (±15 %) or DC 24 V (±20 %)
SSD131.29U
AC 24 V (±20 %)
Frequency
50/60 Hz
Power
consumption
SSD161S.05DU
Normal Operation: 3.5 VA (AC); 1.5 W (DC)
SSD161S.25DU
Normal Operation: 3.5 VA (AC); 1.5 W (DC)
Peak (Ultra cap recharge): 8 VA (AC); 4 W (DC)
SSD131.29U
Normal Operation: 3 VA (AC); 1.5 W (DC)
Peak (Ultra cap recharge): 6 VA (AC); 4 W (DC)
Primary fuse or
breaker rating
External, 2 A quick blow
Signal input
Control signal
Modulating: DC 0...10 V to Y
Floating: AC 24 V to Y1 or Y2
Input impedance
100 kOhm
Parallel operation (number
of actuators)
Max. 10 modulating or 24 floating actuators1)
1) Provided that the controller output is sufficient.
Signal output
Feedback signal (modulating actuators only)
DC 0...10 V
Max. output current
1 mA
Max. output voltage
-
Resolution
1:100
Operating data
Position with de-energized contact Y
See "Technical design [▶2]”
Running speed (time for 5.5 mm)
SSD161S.05DU, SSD161S.25DU: 5 s/mm ±25 % (27.5
s ±25 %)
SSD131.29U: 16 s/mm ±25 % (88 s ±25 %)
Positioning force
67 lbf (300 N )
Stroke
0.05 to 0.25 inch (1.2…6.5 mm )
Permissible temperature of medium in the connected
valve
34 to 248°F (1…120℃)

13
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
Electrical connection
Permissible length for signal lines
65 ft (20 m)
Wire cross section
18...20 AWG (0.5...0.75 mm²）
Cable diameter
<0.22 inch (5.5 mm)
Mounting
Connection to valve
Brass coupling nut M30 × 1.5
Orientation
above horizontal
Standards
EU conformity (CE)
A5W00254962A
RCM conformity
A5W00254983A
UKCA
A5W00257055A
Housing protection degree
NEMA 2 / IP20 (EN 60529)
Protection class according to EN 60730
III
Pollution degree
2
Overvoltage category
I
Environmental compatibility
The product environmental declaration
(SSD161S.05DU: A5W00242127A; SSD161S.25DU,
SSD131.29U: A5W00244689A) contains data on
environmentally compatible product design and
assessments (RoHS compliance, materials
composition, packaging, environmental benefit,
disposal).
UL Approval
Federal Communications Commission
UL as per UL60730-1, UL60730-2-14
http://ul.com/database
cUL as per CSA –CAN E60730-1, E730-2-14
FCC CFR 47 Part 15 Class B
ICES003
CAN ICES-3 (B)/NMB-3(B)
FCC regulations
Modification of this device to receive cellular radio telephone service signals is pro-
hibited under FCC rules and federal law.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help.

14
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
Changes or modifications not expressly approved by the party responsible for compliance
could void the user’s authority to operate the equipment.
Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.
Housing color
Cover/base
2003, Ti-Gray
General ambient conditions
Operation
Transport
Storage
Temperature
34 to 122°F (1...50 ℃)
-13 to 158°F (-25...70 ℃)
-13 to 158°F (-25...70 ℃)
Humidity
5...95 % r.h.
non condensing
<95 % r.h.
non condensing
5...95 % r.h.
non condensing
Atmospheric
pressure
Min. 700 hPa, corresponding to
max. 3,000 m above sea level
-
-
Material
Cover/base
PC + ABS
Connecting nut
Brass
Weight
SSD161S.05DU
9.6 ounces (271 g)
SSD161S.25DU
10.4 ounces (294 g)
SSD131.29U
10.3 ounces (293 g)

15
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
Diagrams
Connection terminals
Connection terminals for SSD161S.05DU, SSD161S.25DU
G
System potential (AC/DC 24 V)
G0
System neutral
Y
Control signal DC 0...10 V
U
Feedback signal
M
Measurement reference
Connection terminals for SSD131.29U
G
System potential (AC 24 V)
G0
System neutral
Y1
Stem extends
Y2
Stem retracts
G0
G
U
Y
G0
G
Y2
Y1

16
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
Connection diagrams
SSD161S.05DU, SSD161S.25DU
N= Controller
Y= Actuator
SP, G = System potential AC/DC 24 V
SN, G0 = System neutral
Y = Control signal
U = Feedback signal
M = Measurement reference
SSD131.29U-Neutral switch
N= Controller
Y= Actuator
SP, G = System potential AC 24 V
SN, G0 = System neutral
Y1, Y2 = Control signal OPEN, CLOSE
Q1, Q2 = Controller contacts
SSD131.29U-Hot switch
N= Controller
Y= Actuator
SP, G = System potential AC 24 V
SN, G0 = System neutral
Y1, Y2 = Control signal OPEN, CLOSE
Q1, Q2 = Controller contacts
(Y)
SN (-)
AC 24 V (DC 24 V)
2AF
(U) (M)
(Y1)
SN
AC 24 V
2AF
(Y2)
A6V11858278Z07
(Y1)
SN
AC 24 V
2AF
(Y2)
A6V11858278Z08

17
Siemens
A6V12681520_enUS_a
Smart Infrastructure
02/09/2023
Dimensions
mm (inch)
Revision numbers
Type
Valid from rev. no.
SSD161S.05DU
..A
SSD161S.25DU
..A
SSD131.29U
..A
A6V12681511Z05
27.7
(1.1")
49
(1.9")
95.6 (3.)
8"
104
(4.1")

Issued by
Siemens Switzerland Ltd
Smart Infrastructure
Global Headquarters
Theilerstrasse 1a
CH-6300 Zug
[phone]
www.siemens.com/buildingtechnologies
© Siemens Switzerland Ltd, 2023
Technical specifications and availability subject to change without notice.
Document ID
A6V12681520_enUS_a
Edition
02/09/2023