Siemens SSD161S.05DU Manuale utente

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

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

0.5

599-04300-XX

599-04320-XX

0.5

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

0.75

599-04302-XX

599-04322-XX

0.75

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

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

1.25

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

Calibration Y

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

Siemens

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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

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.

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