Siemens SSC161.05UT Manuale utente

Electromotoric actuator

SSC161.05UT

For pressure independent zone valves, small globe valves and 3-party valves

●Operating voltage AC/DC 24 V, positioning signal DC 0...10 V

●Self calibrating to the valve stroke

●Direct mounting with coupling nut, no tools required

●Manually override

●Position and actuator motion indication (LED)

●Positioning force 300 N

●Parallel operation of multiple actuators possible

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Use

●For zone valves VVP.., VXP.., VMP..: compatible with SSC161.05UT

●For 2-/3-port valves: compatible with SSC161.05UT

●Typically in chilled ceiling, VAV and fan coil unit applications

●Max.10 units of SC161.05UT can operate in parallel, provided the controller output

suffices.

Technical design

When the actuator is driven by DC 0…10 V positioning signal, it produces a stroke, which is

transmitted to the valve stem.

DC 0…10 V positioning signal

●The valve opens / closes in proportion to the

positioning signal at Y.

●At DC 0 V, actuator stem is retracted, the normally

closed valve is fully closed.

●When there is no operating voltage, the actuator

maintains its current position.

●This actuator provides a DC 0…10 V position

feedback signal proportional to the stroke of the

actuator stem.

Y = Positioning signal Y [V]

H = Percentage of calibrated valve stroke

LED indication

Status

LED indication patterns

Variants 

SSC161.05UT

Stroke movement: Stem retracting

Flashing green in sequence: LED1-->LED2-->LED3 (500 ms each)

Stroke movement: Stem extending

Flashing green in sequence: LED3-->LED2-->LED1 (500 ms each)

Stem position

At H0 - H40: Constant green (LED3)

At H40 - H60: Constant green (LED2)

At H60 - H100: Constant green (LED1)

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

Type summary

Type

Stock number

Operating

voltage

Running

speed

Running time

5.5 mm

Positioning

signal

Actuator

characteristic

SSC161.05UT

S55180-A149

AC/DC 24 V

5 s/mm

27.5 s ±25 %

DC 0…10 V

Linear

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Ordering

When ordering, specify both type and quantity.

Example:

Type

Stock number

Designation

Quantity

SSC161.05UT

S55180-A149

Electromotoric actuator

Delivery

Valves and actuators must be ordered separately. For easier valve assembly, actuators

ordered separately have the actuator stem fully retracted.

Equipment combinations

Combinable valves

Type reference

Valve type

Kvs [m3/h]

PN class

Data sheet

VVP45..

2-port valves

0.25…25

PN 16

N4845

VXP45..

3-port valves

VMP45..

3-port valves with T-bypass

0.25…4.0

VVG45..1)

2-port valves

0.63…25

Retrofitting to former Landis & Gyr

valves

VXG45..1)

3-port valves

X3i..1)

3-port valves

0.7…14

1)With ASK30 mounting kit

Note: To ensure trouble-free operation of

third-party valves with the actuator, the

valves must satisfy the following

requirements:

●Threaded connections with coupling nut:

¾” inch

●Nominal force: > 300 N

●Dimension X ≥ 8.3 mm

●Dimension Y ≤ 14.8 mm

Controllers

Type

AC/DC 24 V; DC 0…10 V

DXR2

DXR2..

RXB..

RXB39.1..

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Combinable room thermostats

Type

Detail

RDG..

RDG160KN, RDG160T, RDG260, RDG405KN

RDU..

RDU340

RCU..

RCU50..

Product documentation

Topic

Title

Document ID

Mounting and installation

Mounting instructions

A6V13463377

Standards and directives

CE declarations

A5W00254962A

RCM conformity

A5W00254983A

Environmental compatibility

Environmental declarations

A5W00244689A

Related documents such as the environmental declarations, declarations of conformity, 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 diagram [▶13]").

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 [▶10]").

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 union nut manually.

●See "Mounting instruction" for graphical instructions.

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Orientation

Installation

A [mm]

B [mm]

C [mm]

5.5

6.0

Crimp ferrule on stripped wire of connecting cable.

●Observe all admissible temperatures (see "Technical data [▶10]").

●Do not twist the cable.

●Magnets can damage the actuator.

●Provide a means for isolation from the power supply, e.g., connecting a circuit breaker or

switch fuse upstream of the control unit.

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.

CAUTION

Phase cut and pulse-duration-modulated (PDM) signals are not suitable.

Regulations and requirements to ensure the safety of people and property must be

observed at all times!

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 actuator self-calibrates (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 > 1.2 mm. Valve stroke < 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.

Power

Calibration Y

Fully retracted

Fully extended

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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 positioning signal from the controller.

3. Adjust the position of the actuator stem by rotating Allen wrench (b) illustrated below

clockwise or anti-clockwise.

–The actuator stem moves down if you rotate clockwise; it moves up if you rotate anti-

clockwise. The manually set position is retained.

4. To exit manual operation mode, press and hold down button (a) illustrated below again

for at least three seconds.

–The actuator runs a self-calibration automatically. Positioning 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 positioning

signal are applied, manual operation can be done without pressing button (a).

Cabling operation

1. Unscrew cover screw

2. Remove cover

3. Connect or disconnect wire terminals

4. Install the cover

5. Screw in the cover screw

3 mm

(b)

(a)

>3s

A6V13359034Z00

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Maintenance

The actuators require no maintenance.

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!

Disposal

The device is considered an electronic device for disposal in accordance

with European guidelines 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.

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Firmware version

OSS document

Device

Document ID

Title

2.10.0 or above

A6V13503690

Readme OSS for Modulating Room Actuator 200N, 300N

All

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Technical data

Power supply

Operating voltage

AC 24 V (±15 %) or DC 24 V (±20 %)

Frequency

50/60 Hz

Power consumption

3.5 VA

Primary fuse or breaker rating

External, 2 A quick blow

Signal input

Positioning signal

DC 0…10 V to Y

Input impedance

100 kOhm

Parallel operation (number of actuators)

Max. 101)

1) Provided that the controller output is sufficient.

Signal output

Feedback signal

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

5 s/mm ±25 %

Positioning force

300 N

Stroke

1.2…6.5 mm

Permissible temperature of medium in the connected

valve

1…120 °C

Electrical connection (connecting cable integral)

Permissible length for signal lines

<20 m

Wire cross section

0.5...0.75 mm²

Cable diameter

<5.5 mm

Mounting

Connection to valve

Brass coupling nut ¾” inch

Orientation

360°

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