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
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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

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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

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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

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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]”).

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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).

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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

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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

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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

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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.