Siemens Acvatix SAS31.03, Acvatix SAS61.53, Acvatix SAS61.33 User Manual

SAS31.03 SAS61.53 SAS61.33

Acvatix™
Actuators SAS.., SAT.. for valves

Basic Documentation

CE1P4041en
2015-05-19 Building Technologies

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Siemens Actuators SAS.., SAT.. for valves CE1P4041en

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Siemens Switzerland Ltd
Building Technologies Division
International Headquarters
Gubelstrasse 22
6301 Zug
Switzer l and
Phone [phone]

www.sie

mens.com/buildingtech nologies

© Siemens Switzerland Ltd, 2015

Technical specif ications and avail ability subject to change with out notice.

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Contents

1 About this document ation ................................................................... 5

1.1 Navigation ............................................................................................. 5

1.2 Revision history ..................................................................................... 5

1.3 Reference documents ............................................................................ 5

1.4 Before you start ..................................................................................... 5

1.4.1 Trad emarks ........................................................................................... 5

1.4.2 Copyright ............................................................................................... 5

1.4.3 Quality assurance .................................................................................. 6

1.4.4 Documen t use / reque st to the reader .................................................... 6

1.5 Scope of this documen tation .................................................................. 6

2 Engineering .......................................................................................... 7

2.1 Product description ................................................................................ 7

2.2 Use ........................................................................................................ 7

2.3 Typ e summa ry ....................................................................................... 8

2.3.1 Stroke actuators ..................................................................................... 8

2.4 Ordering ................................................................................................ 8

2.5 Equipment comb inations ........................................................................ 9

2.5.1 2-port / 3-por t threa d ed va l ves w ith s tro ke actu ato r SA S.. ...................... 9

2.5.2 2-port / 3-por t thread ed va l ves w ith stroke actu a tor SAT.. ....................... 9

2.6 Accessories ......................................................................................... 10

2.6.1 Electrica l acces sories .......................................................................... 1 0

2.6.2 Mechan ical accessories ....................................................................... 10

2.7 Product replacement s .......................................................................... 10

2.7.1 Stro ke actuators SAS../S A T.. to SQS.. .................................................. 10

2.7.2 Electrica l access ories .......................................................................... 1 1

2.8 Sp are parts .......................................................................................... 1 1

2.9 Sizing .................................................................................................. 12

2.9.1 Paralle l operation of actuators .............................................................. 12

2.9.2 Permiss ible cab le length and wire cros s -sectio nal area ........................ 12

2.10 Warranty .............................................................................................. 13

3 Handling ............................................................................................. 14

3.1 Mounting and inst allation ..................................................................... 14

3.1.1 Mounting positions ............................................................................... 14

3.1.2 Fitting stro ke actu ato rs SAS.. to thread e d valves ................................. 14

3.1.3 Accessories ......................................................................................... 15

3.1.4 Wiring (installat ion) .............................................................................. 18

3.2 Commiss ioning and operation .............................................................. 20

3.2.1 Function check and Calibra tion ............................................................ 20

3.2.2 Maintenance ........................................................................................ 22

3.2.3 Disposa l .............................................................................................. 22

4 Functi ons and control ....................................................................... 23

4.1 3-pos ition contro l ................................................................................. 23

4.2 Modulat ing control ............................................................................... 25

4.2.1 Position ing signal and flow character istic selec tion ............................... 26

4.2.2 Position feedback U ............................................................................. 27

4.2.3 Calibration ........................................................................................... 27

4.2.4 Signal priorities .................................................................................... 2 8

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4.2.5 Detection of val ve seat ......................................................................... 29

4.2.6 Detection of foreign bod ies .................................................................. 30

4.2.7 Forced contro l Z .................................................................................. 30

4.3 T ech nical and mechan ical design ......................................................... 31

4.3.1 Tran smission of powe r ......................................................................... 31

4.3.2 Coupling .............................................................................................. 31

4.3.3 Fail safe function ................................................................................. 32

4.3.4 Manua l adjus ter ................................................................................... 33

4.3.5 Indicators ............................................................................................. 34

4.3.6 Electrica l acces sories .......................................................................... 3 5

4.3.7 Mechan ical accessories ....................................................................... 35

5 Tec hnical data .................................................................................... 36

6 Connec tion diagrams and dimens ions ............................................. 38

6.1 Interna l diagra ms ................................................................................. 38

6.2 Conne ction terminals ........................................................................... 39

6.2.1 Actuators ............................................................................................. 39

6.2.2 Electrica l acces sories .......................................................................... 4 0

6.2.3 Cable labeling ...................................................................................... 40

6.3 Conne ction diagrams ........................................................................... 41

6.4 Dimensions.......................................................................................... 42

6.4.1 Stroke actuators ................................................................................... 42

Revision numbers ............................................................................................. 44

7 Glossary ............................................................................................. 45

7.1 Symbols .............................................................................................. 45

7.2 T erms .................................................................................................. 45

Index 47

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1 About this documentation

1.1 Navigation

Information about a specific actuator is provided throughout the document . The
structure of chapters 2 to 4 is as follows:

Glossary and Index are arranged at the end of the document.

1.2 Revision history

Revision Date Changes Chapter

First edition 2015- 05-19 - -

1.3 Reference documents

Type of document SAS.. SAT..

Data Sheet N4581 N4584
Mounting Ins tructions lasered on cover

CE Declaration of Conformit y

AC 230 V T4581X1 T4584X1
AC/DC 24 V T4581X2 T4584X2

Environmental Declaration E4581 E4584

1.4 Before you start

1.4.1 Trademarks

The table below lists the third-party trademarks used in this document and their
legal owners. The use of trademarks is subject to international and domestic
provisions of the law.

Trademarks Legal owner

Acvatix

TM

Siemens Switzerland Ltd

All product names listed in the table are registered (®) or not registered (™)
trademark s of the owner listed in the table. We forgo the labeling (e.g. using the
symbols ® and ™) of t rademarks for the purposes of legibility based on the
reference in this section.

1.4.2 Copyright

This document m ay be duplicated and distributed only with the express permission
of Siemens, and may be passed on only to authorized persons or companies with
the required technical knowledge.

Note

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1.4.3 Quality assurance

These documents were prepared with great car e.

· The contents of all documents are checked at regular intervals

· All necessary corrections are included in subsequent versions

· Anpassungen bzw. Documents are automaticall y amended as a consequence of

modificati ons and corrections to the products described
Please make sure that you ar e aware of the latest document revision date.
If you find lack of clarity while using this document, or if you have any criticisms or
suggestions, please contact the product manager in your nearest branch office.
The addresses of the Siemens regional companies are available at

www.siem ens.com/acvatix

.

1.4.4 Document use / request to the reader

Before using our products, it is important that you read the documents supplied
with or ordered at the same time as the products (equipm ent, applications, tools
etc.) carefully and in full.
We assume that persons using our products and documents are authorized and
trained appropriately and have the technical knowledge required to use our
products as intended.
More information on the products and applications is available:

· On the intranet (Siemens employees only) at

https://workspace. sbt.siem ens.com/cont ent/00001123/def ault.aspx.

· From the Siemens branch office near you www.siemens.com/acv atix or from

your system suppli er.

· From the support team at headquarters f ieldsupport-z ug.ch.sbt@si emens.com

if

there is no local point of contact.

Siemens assumes no liability to the extent allowed under the law for any losses
resulting from a failure to comply with the aforementioned points or for the improper
compliance of the same.

1.5 Scope of this documentation

This document shall serve as a source of knowledge. In addition t o basi c
information, it provides general technical information about the actuators used in
HVAC plants. It is also targeted at engineering staff, HVAC electrical planners,
system integrators and service engineers and provi des all information required for
planning work, correct installation, commissioning and service.

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2 Engineering

2.1 Product description

The line of small actuators is comprised of stroke actuators SAS.. and SAT..

1

User interface
Electrical connections

2

Power tr ansmission and
preparation
Print
Motor

3

Yoke (for assemb ly of
actuat or and seat, slipper
valve)

SAS.., SAT..

SAS.. / SAT.. SAS..5.. / SAT ..5.. SAS..33..

A1 Manual adjuster (with slide switch)
A2 Dummy cover ( wi thout manual adjuster)
A3 Manual adjuster (without slide swi tch)
B Cable glands (M16 / M20)
C Position indication
D Status indication (SA..61.., 0…10 V)
E Housing cover
F Housing
G Valve stem coupling
H Housing of spring return

2.2 Use

For use in connection with Siemens 2-port or 3-port valves, as control or shutoff
valves for HVAC plants.

Mechanical design

Components

SAS.. / SAT..

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2.3 Type summary

2.3.1 Stroke actuators

All types: · Stroke 5.5 mm

· Positioning force SAS.. 400 N
SAT.. 300 N

Product

no.

Stock no.

Operating

voltage

Positioning

signal

Power

consumption

Positioning

time

Fail safe

function /

Spring return

time

Manual

adjuster

Position

feedback

Remark

SAS31.00

S55158-A106

AC 230 V 3-position

2.8 / 2.4 VA

5)

120 s

no / ‒ yes

-

1) 3)

SAS31.03

S55158-A107

3.5 / 2.9 VA

5)

30 s

SAS31.50

S55158-A108 3.5 / 2.9 VA

5)

120 s yes / <28 s

6)

no

SAS31.53

S55158-A109

5.5 / 3.8 VA

5)

30 s yes / <14 s

6)

SAS61.03

S55158-A100

AC/DC 24 V

DC 0…10 V

DC 4…20 mA

0…1000 Ω

5.3 / 4.5 VA

5)

30 s

no / ‒

yes

DC 0…10 V

1)

4)

SAS61.03U

S55158-A100-A100

5.3 / 4.5 VA

5)

2)

SAS61.33

S55158-A101 5.9 / 4.8 VA

5)

yes / <14 s

6)

1)

SAS61.33U

S55158-A101-A100

5.9 / 4.8 VA

5)

2)

SAS61.53

S55158-A102 5.8 / 5.0 VA

5)

no

1)

SAS81.00

S55158-A103

AC/DC 24 V

3-position

2.2 / 2.0 VA

5)

120 s

no / ‒

yes -

1)

SAS81.00U

S55158-A103-A100 2.2 / 2.0 VA

5)

2)

SAS81.03

S55158-A104

2.5 / 2.1 VA

5)

30 s

1)

SAS81.03U

S55158-A104-A100 2.5 / 2.1 VA

5) 2)

SAS81.33

S55158-A105

3.4 / 2.4 VA

5)

yes / <14 s

6)

1)

SAS81.33U

S55158-A105-A100 3.4 / 2.4 VA

5)

2)

SAT31.008

S55158-A119

AC 230 V 3-position

5.0 / 2.5 VA

5)

8 s n o / ‒ yes

-

1)

3)

SAT31.51

S55158-A120 5.5 / 3.2 VA

5)

15 s yes / <8 s

6)

no

SAT61.008

S55158-A117

AC/DC 24 V

DC 0…10 V

DC 4…20 mA

0…1000 Ω

7.1 / 4.6 VA

5)

8 s n o / ‒ yes

DC 0…10 V

4)

SAT61.51

S55158-A118

6.4 / 4.8 VA

5)

15 s yes / <8 s

6)

no

1)

Cable gland: M16 and M20 (ISO50 262)

2)

Cable gland: ½“ (UL514C)

3)

Approbation: CE

4)

Approb ation: CE and UL (only 24 V)

5)

Sec ond val ue: Power cons umption in neu tral positi on

6)

Spring return time inc reased slightly at low temper atures

2.4 Ordering

Product no. Stock no. Description Quantity

SAS31.00 S55158-A106 Actuator 1
+ auxiliary components (connections, auxiliary switches…)

Actuators, valves and accessories are supplied in individual packs.

Example

Delivery

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2.5 Equipment combinations

2.5.1 2-port / 3-port threaded valves with stroke actuator SAS..

Typical applications:

· Heating plants

· District heating plants

· Ventilation and air conditi oning pl ants

Actuators

Stroke
Positioning force
Data sheet

SAS..

5.5 mm
400 N
N4581

PN 16 VVG44..

PN 16

VXG44.. SAS..

Medium 1…120 °C Medium 1…120 °C DN G k

vs∆ps∆pmax

Data sheet N4364 Data sheet N4464 [Inch] [m3/h] [kPa] [kPa]

VVG44.15-..

1)

VXG44.15-..

1)

15 G 1 B 0.25 / 0.4 / 0.63 1600 400

VVG44.15-..

1)

VXG44.15-..

1)

15 G 1 B 1 / 1.6 725 400

VVG44.15-..

1)

VXG44.15-..

1)

15 G 1 B 2.5 / 4 400 400
VVG44.20-6.3 VXG44.20-6.3 20 G 1 1/4 B 6.3 750 400
VVG44.25-10 VXG44.25-10 25 G 1 1/2 B 10 400 400
VVG44.32-16 VXG44.32-16 32 G 2 B 16 250 250
VVG44.40-25 VXG44.40-25 40 G 2 1/4 B 25 125 125

PN 25 VVG55.. SAS..

Medium 1…130 °C DN G k

vs∆ps∆pmax

Data sheet N4379 [Inch] [m3/h] [kPa] [kPa]

VVG55.15-..

1)

15 G 3/4 B 0.25 / 0.4 / 0.63 2500 1200

VVG55.15-..

1)

15 G 3/4 B 1 / 1.6 / 2.5 2000 1200

VVG55.20-4 20 G 1 B 4 1000 1000
VVG55.25-6.3 25 G 1 1/4 B 6.3 800 800

1)

.. = insert kvs value

2.5.2 2-port / 3-port threaded valves with stroke actuator SAT..

Typical applications:

· Heating plants

· Ventilation plants

Actuators

Stroke
Positioning force
Data sheet

SAT..

5.5 mm
300 N
N4584

PN 25 VVG549.. SAT..

Medium 2...13 0 °C

1)

DN G k

vs∆ps∆pmax

Data sheet Q4380 [Inch] [m3/h] [kPa] [kPa]

VVG549.15-0.25

15 G 3/4 B

0.25

1200

2500

VVG549.15-0.4 0.4
VVG549.15-0.63 0.63
VVG549.15-1 1

1500

VVG549.15-1.6 1.6
VVG549.15-2.5 2.5
VVG549.20-4K

2)

20 G 1 B 4

1600

VVG549.25-6.3K

2)

25 G 1 1/4 B 6.3

1)

Briefly 150 °C, with ALG..B fittings up to 100 °C

2)

Pressure compensated

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2.6 Accessories

2.6.1 Electrical accessories

Product no. Accessor y Description

SAS.. / SAT.. ASC10.51 Auxiliary switch

2.6.2 Mechanical accessories

Product no. Accessor y Description

SAS.. / SAT.. ASK39.2 Weather shield

2.7 Product replacements

Replacement of SQS../SSC.. actuators by SAS.. and SAT.. actuators.

· W hen replacing actuators consider positioning force and torque.

· Adjust in the controller the parameter "Running time" (corresponds to positioning

time + idle stroke) and "Positioning time" if changed, to ensure stable control.

· The replacement of accessory items needs t o be taken into consideration also.
In that case, compatibility is not necessarily ensured.

2.7.1 Stroke actuators SAS../SAT.. to SQS..

SQS.. SAS.. / SAT..

VVG44..
VXG44.. VVG55.. VVG549..

Pos.
time

Pos.

force

Pos.
time

Pos.

force

Product no. OEM [s] [N] Prod u ct no. [s] [N] DN15…40 DN15…25 DN15…25
SQS35.00 SQS359.00/189

150

400

SAS31.00 120

400

P P ­SQS35.000C P P ­SQS35.00SL P P -

SQS35.03 SQS359.03

35 SAS31.03 30

P P ­SQS359.03/189 P P -

SQS35.50 - 150 SAS31.50 120 P P ­SQS35.53 - 35 SAS31.53 30 P P

- SQS359.05 15 250 SAT31.008 8
300

- - P

- SQS359.54 20 400 SAT31.51 15 - - P

SQS65 - 150

400

SAS61.03

30 400

P P -

SQS65.2 -

35

- P P ­SQS65.5 - SAS61.53 P P ­SQS65.5U - SAS61.33U P P ­SQS65U - SAS61.03U P P ­SQS85.00 - 150

400

SAS81.00 120

400

P P -

SQS85.03 -

35

SAS81.03

30

P P -

SQS85.53U - SAS81.33U P P -

Note

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2.7.2 Electrical accessories

· If auxiliary switches are used, their switching point s should be indicat ed on the
plant schematic.

· Do not insulate the yoke and housing of the actuator and the valve stem, as air
circulation must be ensured.

· Non-observance of the above may result in accidents and fires!

· Do not touch the hot parts without prior protective measures to avoid

burns!

Stroke actuators SQS.. SAS..
ASC9.6 Auxiliary switch ASC9.6 ASC10.51

2.8 Spare parts

The following spare parts are av ailable:

Stock number Description

8000069479 Housing cover with screws and

light conductor as an
assembly, without laser
marking

Notes

SAS..
SAT..

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2.9 Sizing

2.9.1 Parallel operation of actuators

3-position actuators must have one specifi c controller each; refer to chapter

6.3 Connection diagram s (page 41).

Up to 10 actuators can drive in parallel on a controller output with a rating of 1 mA.
Modulating actuators have an input impedance of 100 kΩ.

2.9.2 Permissible cable length and wire cross-sectional area

Cable lengths and wire cross-sectional areas depend on the following criteria of the
actuators:

· Current draw

· Permissible voltage drop across the power supply lines

The control acc uracy of the modulating actuators can be improved by using 4-wire
connections, t hus ensuring that voltage drops on G0 will not distort t he positioning
signal.

When determini ng the cable length and the wire cross-sectional area, adherence to
the permissible operating voltage tolerance at the actuator is of importance, in
addition to the permissible voltage drop across the operating voltage and signal
lines (see table below).

Product

no.

Operating voltage Terminal

Max. permissible voltage

drop

SA..31.. AC 230 V N, Y1, Y2 2% each (total of 4 %)
SA..61..

AC/DC 24 V

G0, Y, U 1% each (at DC 0…10 V)

SA..81.. G, Y1, Y2 4% each (tot al of 8%)

The following criteria must be considered:

· With modulating control, the permissible positioning signal error must not exceed
1%, the reason being the voltage drop on the G0 wire.

· The voltage drop, caused by charging current peaks in the actuator’s DC circuit,
must not exceed 2 Vpp.

· If the G0 line is not correctly sized, load changes of the actuator due to changes
of the DC voltage drop might lead to self-oscillations.

· The operating voltage drop at AC/DC 24 V may be a max im um of 8% (4%
across the G0 wire).

SAS31.. and SAS81..

SAS61..

Note

Basic diagram

− vol tage

drop across the power
supply cabl es

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The following diagram can be used to determine the cable lengths and wire cross­sectional areas.

Cable leng t h L

Power P

Permissible cable length L as a function of powerP and cross-section al area of wire as a par ameter

P is the decisive power consumption of all actuators connected in parallel. When
operating on AC 24 V, power consumption is in VA; when operating on DC 24 V,
in W.

Operating voltage Permissible voltage drop / wire Formula for wire le ngth

AC 230 V 2 % of AC 230 V

L = 46 ·

P

A1313 ·

[m]

AC 24 V

4 % of AC 24 V

L =

P

A1313 ·

[m]

1 % of DC 10 V

L =

(DC)I

A5.47 ·

[m]

A Cross-sectional area of wire in mm

2

L Permiss ible wire l ength in m
P Power consumption in VA (AC) or W (DC) (see actuator’s rating plate)
I(DC) DC current part (in A) on G0 wire

2.10 Warranty

The engineeri ng data specif ied in chapter 2.5 Equipment combinations (page 9)
are only guaranteed in connection with the Siemens valves listed.

When using the actuators in connection with valves of other manufacture, correct
functioning m ust be ensured by the user, and Siemens will assume no
responsibili ty.

L/P-diagram for
AC/DC 24 V

Note

Formulas for wire
lengths

Note

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3 Handling

3.1 Mounting and installation

3.1.1 Mounting positions

Indoor use Outdoor use

1)

1)

Only in connection with weather shield ASK39.2, housing protection IP54 remains unchanged

3.1.2 Fitting stroke actuators SAS.. to threaded valves

First, observe chapter 3.1.1 Mounting positions.

123

tighten firmly by hand

123

-

tighten firmly by hand

SAS..0..
SAT..0..

SAS..5..

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3.1.3 Accessories

Before fitting the accessory items shown below, the following steps must be
performed:

1. Actuat or is mechanically connected to a Siemens valve.

2. Observe compati bility and choice of combinations. Refer to 2.6 (page 10).

3. Disconnect actuator, auxiliary switch from power.

Attention if AC 230 V connected danger of life!

4. Onl y required with actuators without fail safe function: Using the manual
adjuster, drive the actuator’s stem to the fully retracted position and fix the
coupling. See “M anual operation” and “Fixing the position” ( page 33).

5. To fit an auxiliary switch the housing cover must be removed and the M16
knock-out broken out .

1

PZ 2

2

3

No. 3

A Plug-in space for accessory
B

Connection terminal

Special notes on
mounting

Interior view

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Scope of delivery

· 1 auxiliary switch

· 1 sc rew

First, observe "Special notes on mounting" (page 15).

123

No.: 1

4

Adjust switch position (refer also to "Manual adjust er" page 33)

Without

fail safe function

(SA..1.0..)

With fail safe function (SA..1.3.. / SA..1.5..)

5

No.: 1

When initial situation: 0 Ω

When initial situation: ∞ Ω

Auxiliary switch
ASC10.51

Plug-in space for
accessory

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6

Observe "Wiring ( installation)" (page 18)

7

Observe "Connection terminals"
(page 39)

8 9

max. 1.2 Nm

Before commissioning with the control, check the exact position again; see
"Auxiliary switch", page 21.

First, observe "Special notes on mounting” (page 15).

Scope of delivery

Weather shield ASK39.2 2 UV-proof cable ties

· To protect the actuator from weather effects when used outdoors, the weather

shield must always be fitted. The housing protection IP54 remains unchanged.

· If fitted several times, 2 UV-proof cable ties (700 x 7 mm) must be used when

fitted again.

· The manual adjuster cannot be used when the weather shield is mounted.

1

2

Note

Weather shield
ASK39.2

Notes

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3.1.4 Wiring (installation)

Conduct the electrical connections in accordance with local regulati ons on
electrical installations as well as chapter 6.2 "Connection terminals" on page 39.

The cable endings m ust be prepared before as follows:

A

EU: M20
US: ½“

Connection
actuator

B

EU: M16
US: ½“

Connection
accessories

Cable glands (not contained in scope of delivery)

Metric Metric Inch thread

M16 M20 ½“

· W ithout cable gland IP protection is not guaranteed!

· Guide the cable in a loop to the cable gland, so water can drop off.

Prior to installation, the following preconditions must be satisfied:

· Actuator is mechanically connected to a Siemens valve.

· Housing cover is removed.

Preparation of wire
endings

Cable entries

Cable glands

Notes

Preconditions

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1

No: 4

2

PZ 2

3 4

5 6

Observe "Connection terminals"
(page 39)

1

No: 3

2

3 4

Observe "Connection terminals"
(page 39)

Actuator

Auxiliary switch
ASC10.51

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3.2 Commissioning and operation

3.2.1 Function check and Calibration

Before making the function check, the following preconditions must be satisfied:

· "Environment al conditions" specified in chapter "Technical data" (page 36)

· Actuator is mechanically connected to a Siemens valve.

· Actuator is in "Manual operation" mode (page 33).

If available, the actuator can be operated with the help of t he “Manual adjuster”
(see page 33).

Manual adj uster

Stroke

actuator

Rotary actuator

Control path
valve Aà AB

Bypass valve

B à AB

Turning in
clockw ise direction

Actuator’s
stem exten ds

Actuator’s spindle turns
in clock w ise direction

Opening Closing

Turning in counter­clockw ise direction

Actuator’s
stem retracts

Actuator’s spindle turns
in counterclockwise
direction

Closing Opening

· If the actuator is forced to travel beyond its end positi ons, overload protection
responds.

· Observe informati on given in chapter 4.2.1 Positioning signal and flow
characteri stic selection, page 26.

Before making the function check, the following preconditions must be satisfied:

· "Environment al conditions" specified in chapter "Technical data" (page 36).

· Actuator is mechanically connected to a Siemens valve.

· Actuator is in “Automatic” mode (page 33).

· Actuator and, if required, accessories are correctl y fitted and connected. Also

refer to chapter 6.2 Connection terminals (page 39).

· Power i s applied.

Calibration is required with modulating actuators and SA..61.. before the function
check.

Before making the calibration, the following preconditions must be satisfied:

· A description of the calibration function is given in chapter 4.2.3 Calibration
(page 27).

· Housing cover is removed (see “Special notes on mounting”, page 15).

1

Bridge contact

2

Check LED (pag e 34)

If required, calibration can be repeated any number of times.

Make the function check for modulating actuators after the calibration with a point
test according to the following table:

Manually

Notes

Electrically

SA..61..

General notes on
calibration

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Connection terminals Stroke actuator Rotary actuator

Control path
valve Aà AB

Bypass valve

B à AB

Position

feedback U

Y

6 V

13.6 mA

Actuator’s stem
extends (60%)

Actuator’s spindle turns in
clockwise direction (60 %)

Opening Closing 6 V

Y

5 V
12 mA

Actuator’s stem
retracts (50%)

Actuator’s spindle turns in
counterclockwise
direction (50 %)

Closing Opening 5 V

Z connected to G

Actuator’s stem
extends

Actuator’s spindle turns in
clockw ise direction

Opening Closing 10 V

Z connected to G0

Actuator’s stem
retracts

Actuator’s spindle turns in
counterclockwise
direction

Closing Opening 0 V

Only SAS61.33, SAS61.33U ,
SAS61.53, SAT61.51
No voltage at G and G0
(fail safe function)

1)

Actuator’s stem
retracts (until end
position is
reached)

- Closing Opening -

1)

Closing action is al ways completed firs t, also when power returns.

Make the function check for 3-position actuators according to the f ollowing table:

Connection terminals Stroke actuator Rotary actuator

Control path
valve Aà AB

Bypass valve

B à AB

Voltage at Y1 Actuator’s stem extends

Actuator’s spindle turns in
clockw ise direction

Opening Closing

Voltage at Y2 Actua tor’s stem retra cts

Actuator’s spindle turns in
counter c l ock wise directi on

Closing Opening

No voltage at Y1 and Y2

Actuator’s stem maintains
the position

Actuator’s spin dle maintains
the position

Maintai ns t he position

Only SAS31.50, SAS31.53,
SAS81. 33, SAS81.33U, SAT31.51
No voltage at G and G0
(fail safe function)

1)

Actuator’s stem retracts (until
end position is reached)

- Closing Opening

1)

Closing action is al ways completed firs t, also when power returns.

· Observe informati on given in chapter 4.2.1 Positioning signal and flow
characteri stic selection, page 26.

Make the function check of the mounted auxiliary switch wit h a point test according
to the following table – example switching point at 25% position:

Connection terminals

Stroke

actuator

Rotary

actuator

Terminal

S1 – S3

Terminal

S1 – S2

Voltage at Y2

Y = 0 V

Actuator’s
stem retracts
(until end
position is
reached)

Actuator’s
spindle turns in
counter­clockwise
direction (until
end position is
reached)

- -

No voltage at Y1
und Y2

Y = 0 V

Actuator’s
stem maintains
the position

Actuator’s
spindle
maintains the

position
Voltage at Y1 for
desired valve
position % + 2% x
positioning time

Example:

SAS31. 00 = 27 % x
120 sec = 32.5 sec

Valve
position
% + 2%
Y = 2.7 V

Actuator’s
stem exten ds
to desi red
position (27%)

Actuator’s

spindle turns in

clockwise

direction to

desired

position (27%)

Check switching point with
voltmeter

Actuator’s
stem maintains
the position

Actuator’s

spindle

maintains the

position

- -

SA..31.. and SA.. 81..

Note

Auxiliary switch
ASC10.51

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3.2.2 Maintenance

The actuators are maintenance-free.
Mounting:

· Do not touch the valve coupling if the components (valve/pipes) are hot

· If necessary, disconnect electrical connections from the terminals

The actuator must be correctly fitted to the valve before recommissioning.

3.2.3 Disposal

The products contain electric al and electronic components and must not be
disposed of together with domestic waste. This applies in particular to the printed
circuit board.
Legislation may demand special handling of certain components, respectively it
may be sensible from an ecological point of view.

Observe all local and currently valid legislation.

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4 Functions and control

4.1 3-position control

Example: brushless DC motor with fail saf e function

A 3-position signal drives the actuator
via connection terminals Y1 or Y2. The
required position is transferred to the
valve.

1A/D conversion

2

Control
functions

Identification of seat
Control of direction
Motor control
Manual adj us tment

3Brushless DC motor
4Gear t rain

Fail safe function
Manual adj us ter

Positioning

signal

Stroke actuator Rotary actuator

Control path
valve Aà AB

Bypass valve

B à AB

Voltage at Y1

Actuator’s stem
extends

Actuator’s spindle
turns in clockwise
direction

Opening Closing

Voltage at Y2

Actuator’s stem
retracts

Actuator’s spindle
turns in counter­clockw ise direction

Closing Opening

No voltage at Y1
and Y2

Actuator’s stem
maintains the
position

Actuator’s spindle
maintai ns t he position

Maintai ns t he position

No voltage at Y1
and Y2; with fail
safe function

Actuator’s stem
retracts

Actuator’s spindle
turns in counter­clockw ise direction

Closing Opening

Observe information given in chapter 4.2.1 Positioning signal and flow
characteri stic selection on page 26.

Internal control ensures very constant positioning times and determination of the
actuator’s position.

Note

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The specified positioning times refer to the respective nominal stroke / nomi nal
angular rotati on. Since the end positions of rotary actuators are inside the actuator,
the following remarks refer to stroke actuators.
The resulting effective strokes vary, depending on the type of valve, resulting in
shorter or longer actuator positioning times.

Stroke of valv e- actuator combinati o n [mm]

Positioning time [sec]

Legend diagram

A Mechanical end positi on i n actuator
B Valves with 5.5 mm nominal stroke
X Time to override idle stroke (delay time), see glossary

Deviations occur

· aft er several positi oni ng signals Y1 and Y2 in the same direction since the stroke
movement starts with a delay of 50 ms.

· when positioning signals Y1 and Y2 are active for less than 50 ms since the
stroke movement cannot be made in that case.

A B C Y1 Y2 0

Calculated position Actual position

Positioning
time [m s]

Positioning signals

(power ap pl i ed)

No power applied

Positioning tim es strok e
model

Notes

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4.2 Modulating control

The modulating positioning signal
drives the actuator steplessly. The
positioning si gnal range
(DC 0...10 V / DC 4...20 mA /

0...1000 Ω) corresponds i n a linear
manner to the positioning range (fully
closed...f ully open, or 0…100 %
stroke).

The actuator is controlled via terminal
Y or forced control Z (page 30). The
desired stroke / the desired rotation is
transferred to the valve stem / the
valve spindl e.

1Calibration slot
2LED (2 colors)

3

DIL
switches

Changeover of characteristic
Positioning signal

4A/D conversion
5Power supply

6

Control
functions

Identification of seat
Position control
Motor control
Detection of foreig n bodies
Calibration
Forced control
Characteristics function
Manual adj us tment

7Brushless DC motor
8Gear train

Fail safe function
Manual adj us ter

Pos itioni ng signal Stroke actuator Rotary actuator

Control path valve

AàAB

Bypass valve

B à AB

Signal Y, Z increasing Actuator’s stem extends

Actuator’s spindle turns in
clockw ise direction

Opening Closing

Signal Y, Z decreasing Actuator’s stem retracts

Actuator’s spindle turns in
counter c l ock wise directi on

Closing Opening

Signal Y, Z constant

Actuator’s stem maintains the
position

Actuator’s spin dle maintains
the position

Maintai ns t he position

No voltage at Y1 and Y2;
with fail safe function

Actuator’s stem retra cts

Actuator’s spindle turns in
counter c l ock wise directi on

Closing Opening

Observe the information given in chapter 4.2.1 Positioning signal and flow
characteri stic selection on page 26.

Note

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4.2.1 Positioning signal and flow characteristic selection

1)

Factory setting: All DIL switches set to OFF

Flow characteristic

Actuator Valve VVG44.. / VXG44.. Valve & actuator combined

Valve & actuator & heat

exchang er co mbined

lin

Actuator Valve VVG55.. / VVG549.. Valve & actuator combined

Valve & actuator & heat

exchang er co mbined

log

Y, Z Positioning signal
H Stroke

V˙ Volumetric flow
Q˙ Heat transfer capacity

Pos itioni ng signal

"Y"

Position

feedback "U"

Flow characteristic

OFF

1)

DC 0…10 V DC 0…10 V

log =
equal­percentage

ON DC 4…20 mA DC 0…10 V

lin =
linear

DIL switches

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4.2.2 Position feedback U

The position feedback U (DC 0...10 V) is always proport ional to stroke H of the
actuator’s stem.

Actuator

Positioning signal Y, Z

Actuator

Position feedback U

lin = linear

log = equal­percentage

Actuator

Positioning signal Y, Z

Actuator

Position feedback U

Y, Z Positioning signal
H Stroke
U Position feedback

4.2.3 Calibration

To match the actuator to production-related mechanical tolerances of the individual
valves and to guarantee accurate positioning and position feedback, a calibration
should be perform ed when the plant is commissioned (page 20). During
commissioning, the actuator detects the valv e’s end positions and files the exact
stroke in its internal memory.

Calibration takes place in the following phases:

· Act uator drives to the upper end positi on (1),
valve closes. Detect ion of upper end position.

· Act uator drives to the lower end position (2),
valve opens. Detection of lower end position.

· The detected values are stored (3). Then the
actuator follows the positioning signal.

Observe status indication (LED) during and after calibration (page 34).

Note

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4.2.4 Signal priorities

The actuators are c ontrolled via different interli nked positioning signal paths
(positioning signal “Y“, forced control input “Z“, manual adjuster). The signal paths
are assigned the following priorities (1 = highest priority, 4 = lowest priority):

Priority Description

1

The manu al adjuster always has priority 1, thus overriding all si gnals acti ve at “Z“ or
“Y“, indep endent of wh ether or not power is appl ied.

2

Only SA..61..: As soon as a valid positioning signal is active at input “Z“, the position
is determined via positionin g signal “Z“ (forced control).
Prerequisite: The manual adjuster is not used.

Z

3

The position is determined via positioning sig nal “Y“ at Y, Y1 or Y2. The manual
adjust er is not used and on “Z“ there is no ac tive signal.

Y

Manual

adjuster

Forced control

(Z)

Positioning

signal (Y)

Stroke actuator Rotary actuator

Automatic
mode

Not connected 5 V

Actuator’s stem travels
to position (50%)

Actuator’s spindle
travels t o pos iti on
(50%)

Automat ic
mode

G 3 V Actuator’s s tem extends

Actuator’s spindle turns
in clock w ise direction

Automatic
mode

G0 3 V Actua tor’s stem retracts

Actuator’s spindle turns
in counterclockwise
direction

Operated
(30%) and

engaged

G 8 V

Actuator’s stem extends
manual (to 30%)

Actuator’s spindle turns
manually in
counte rclockwise
directi on (to 30%)

Bold pri nting = posi tioning signal currently active

Priority Description

1

The fail safe function responds in the event of a power failure.

2

The position is solely determined via positioning signal ”Z” (forced control),
provid ed p ower is applied.

Z

3

The position is determined by positi oning signal Y, provided power is applied
and positioning signal ”Z” is not used.

Y

4

Upon actuation and s lightl y turning in countercl ockwise direction, the manual
adjust er remains engaged.

Power applied:

After 5 seconds, the manual adjuster disengages itself and p ositionin g s ignal
”Y” or ”Z” determines the position.

No power applied:

The actuator maintains the p osition defined by the manual adjuster until power
returns. Upon restoration of power, an automatic C losedPos ition­Synchr onisation w ill be perf ormed.

Operating

voltage (G/G0)

Manual

adjuster

Forced

control (Z)

Positioning

signal (Y)

Stroke actuator

Applied

Automatic
mode

Not connected 5 V

Actuator’s stem travels to
position (50%)

Applied

Automatic
mode

G 3 V Actuator’s stem extends

Applied

Automatic
mode

G0 3 V Act uator’s stem retracts

Interrupted (fail

safe function)

Automatic
mode

G 6 V

Actuator’s stem retracts (until
end position is reached)

Interrupted (fail
safe function)

Operated
(30%)and

engaged

G 8 V

Actuator’s stem retracts (until
end position is reached), then:
Actuator’s stem extends
manually (to 30%)

Bold pri nting = posi tioning signal currently active

Actuator without
fail safe function

Examples

Actuator with fail safe
function

Examples

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4.2.5 Detection of valve seat

The actuators feature force-dependent valve seat detection. After calibration, the
exact valve stroke is filed in the actuator’s memory .
If no force is built up in the calculated end position (e.g. in the event of temperature
effects for instance), the actuator continues to operate at a reduced positioning
speed until the nominal positioning force is restored. This ensures that the valve
always fully closes.
After a power failure, valve seat identification is not active – the actuators without
fail safe function define their stroke position on power resoration to be at 50%.
From now on, the actuator follows the positioning signal.
When the valve plug reaches its seat for the first time, the actuator readjusts its
stroke model.

The supposed position is 50%, Y = 2 V, the actuator travels 30% of the stored
valve stroke in the direction of "Actuator’s stem retracted".
If the actuator reaches the seat within this 30% travel, it interprets the position as
"Valve fully closed" and shifts the position of t he valve’s stroke accordingly without
changing the extent of travel.
From now on, the actuator follows the changed valve stroke position.
This means: New position 0%, Y = 2 V, actuator travels 20% of the stored valve
stroke in the direction "Actuator’s stem extended".

SAS..

Example

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4.2.6 Detection of foreign bodies

The actuator detects when the v alve is clogged and adjusts its operational behavior
accordingly to prevent damage to itself or the valve.
If the actuator hits an obstacle within the calibrated stroke and is not abl e to
overcome it with its nominal positioning forc e, it stores the position at which the
obstacle was hit. Depending on the direction of travel, as …

"Upper limit of valve clogging", if the clogging was detected when
traveling in the direction of "Actuator’s stem ex tending".

Now, the status LED blinks red and the actuator only follows the positioning signal
between the positions "Actuator’s stem retracted" and "Lower limit of valve
clogging".
After detection of cl ogging, 3 attempts are made to overcome clogging by traveling
about 15% in the opposite direction and then trying again to overcome the position
of clogging. If the attempts made are unsuccessful, the actuator continues to follow
the positioning signal within the restricted range only and the LED continues to
blink red (see "Status indication " page 34).

4.2.7 Forced control Z

Forced control uses the following operating modes:

Z mode

No function Full y op en Fully closed

Overriding

positioning signal “Y“

by 0…1000 Ω

ConnectionsTransmission

Equal-p ercentage or

linear characteristic

Equal-p ercentage or

linear characteristic

Contact “Z“ not

connected,

valve follows

positioning signal ”Y”

Contact “Z“ is

connected directly to

“G“,

positiong signal ”Y”

has no impact

Contact “Z“ is

connected directly to

“G0“,

positiong signal ”Y” has

no impact

Contact “Z“ is

connected to “M“ via

resistor “R“,

starting point at 50 Ω,

end point at 900 Ω,

positioning signal ”Y”

has no impact

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4.3 Technical and mechanical design

4.3.1 Transmission of power

Incoming positioning signals are translat ed to positioning commands for the motor.
A gear train transmits the motor’s positioning steps to the output stage. Here, the

translation from rotary to stroke movement takes place. Attached to the gear train
are the electrical and mechanical accessory items and the manual adjuster. With
the stroke actuators with fail safe function, the gear train also accommodates the
return spring.

In the case of the rotary actuators, the adjustment to the required torque is made i n
the output stage.

Power transmission of stroke actuator:

1 Actuator stem
2 Contact point

actuator stem – valve stem
3 Valve stem
4 Valve spring

The transmission of power has no f ix
connection.
If the actuator stem extends, it presses
on the valve stem and against the force
of the spring in the valve.
If the actuator stem retracts, the valve
stem follows the actuator stem due to
the force of the valve spring.

4.3.2 Coupling

SAS.., SAT..

Actuator stem and valve stem run int o each
other. They are not permanently connected.

Function principle

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4.3.3 Fail safe function

The fail safe function works mechanically with a return spring and ensures the
protecti on of the plant. It guarantees the safe operation in uncontrolled operating
states.
In the event of a power failure, the actuator will return to its 0 % stroke position with
the help of the return spring, closing the valve. The Y positioning signal is not
valued.

Fail safe
function

Actuator Valve

Spring return

time

At positioning

time

Active

Actuator’s stem
retracts

Spring in valv e
closes

Valve closes

<8 s

1)

<14 s

1)

<28 s

1)

15 s
30 s

120 s

1)

Spring return time increased slightly at low temperatures

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4.3.4 Manual adjuster

Without fail safe function With fail safe function (SA..33..)

When the motor drives the manual adjus ter turns. T hus in autom atic mod e, the manu al adjuster is
used for i ndication of travel. If the manu al adjuster is held firm in this mode, there is no transmiss ion
of power to the gear train.

When pus hing the manu al adjuster down (1), it en gages and th e actuator can be manually operat ed.

Stroke actuator: When turning the manual
adjuster in clockwise / counterclockwise direction
(2), the act uator’s st em extends / retracts.

Rotary actuator: The actuator spindle turns in
the same direction

When turning the manu al adjust er in c l ockwise
directi on (2), the ac tuator’s stem extends.

CAUTION: Turning the manual adjuster in
counterc lockwise direction is not possible.

An overl oad prot ection prevents damag e to the manual adjuster.

Upon actuation and locking the slide sw itch, the
manual adjuster remains eng aged.

When in this mode, do not turn the manual
adjust er (manual adjuster locked).

After push ing and slig htly turni ng t he manual
adjust er in counterclockwise direction, it remains
engaged, provided no power is applied.

If power is applied, refer to
"Disengaging the fixing".

When resetting the slide switch, the manual
adjust er returns to automatic mode.

Coupling disengages automatically…

· after 5 seconds if power is applied,

· when power returns; a restart is made

(actuator’s stem retr acts), then, the actuat or
follows t he active positioni ng signal.

Coupling is disengaged manually by slight ly
turning the manual adjuster in clockwise
directi on.

Automatic

Manual operation

Fixing the position

Disengaging the fix i ng

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4.3.5 Indicators

A Indication of travel

B Scale

Position indication

C Indicator

D LED Status indication

In Automatic mode, the manual adjuster serves for the indication of travel.
See "Automatic" (page 33).

When turning the manual adjuster, the indicator also moves.
The scale indicates the stroke. When reaching the stops, the valve is either fully
open or fully closed.

Housing cover fitted Housing cover removed

When the h ousing cover is fitted, the LED can be
viewed through a light conductor.

When the housing cover is removed, the
LED can b e vi ewed throu gh a hole.

The status indication informs about the operational state of the actuator.

LED Indication Operating state Remarks, troubleshooting

Green

On Automatic mode Normal op er at i on

Blinkin g

Calibration Wait until calibration is finished

(then green or red light)

In manual mode Manual adj uster in MAN positi on

Red

On

Calibration error Start calibration again
Undervoltage (AC 13 V) Check op erating voltag e

Blinkin g

Clogged valve, det ection of
foreign b odi es

Check val ve / actuator

Dark Dark No power or electronic s faulty Ch eck operating voltage

Operational status
indication

Positio n indication

Status indication (LED),
only with modulating
control (only SA..61..)

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4.3.6 Electrical accessories

The auxiliary switch ASC10.51 switches on or off when a certain position is
reached. The switching point can be set between 0…100%.

Adjustable switching point

Switching point for S1–S2 and S1–S3 cannot be set separately. If S1–S2 is open
then S1–S3 is closed.

When using an auxiliary switch, position f eedback can trigger an automati c stop of
the circulati ng pump in the end position "Fully closed".

4.3.7 Mechanical accessories

To protect the actuator from weather effects when used outdoors, the weather
shield ASK39.2 must always be fitted. The housing protectionIP54 remains
unchanged.

Auxiliary switch
ASC10.51

Application exam ple:

Weather shield
ASK39.2

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Building Technologies Technical data 2015-05-19

5 Technical data

SAS.. SAT..

Power supply Operating voltage SA..31.. AC 230 V ± 15 %

SA..61..

AC 24 V ± 20 % / DC 24 V + 20 % / -15%

or AC 24 V class 2 (US)

SA..81.. AC/DC 24 V ± 20 %

or AC 24 V class 2 (US)

Frequency 45…65 Hz
External supply line protection (EU) 6 A...10 A slow or

Circuit breaker max. 13 A Characteristic B, C, D according to

EN 60898

Power source with current limitation of max. 10 A
Power consumption at 50 Hz Stem retr acts / extends Stem retracts / extends
SAS31.00 SAT31.008 2.8 / 2.4 VA

1)

5.0 / 2.5 VA

1)

SAS31.03 SAT31.51 3.5 / 2.9 VA

1)

5.5 / 3.2 VA

1)

SAS31.50 SAT61.008 3.5 / 2.9 VA

1)

7.1 / 4.6 VA

1)

SAS31.53 SAT61.51 5.5 / 3.8 VA

1)

6.4 / 4.8 VA

1)

SAS61.03 5.3 / 4.5 VA

1)

SAS61.03U 5.3 / 4.5 VA

1)

SAS61.33 5.9 / 4.8 VA

1)

SAS61.33U 5.9 / 4.8 VA

1)

SAS61.53 5.8 / 5.0 VA

1)

SAS81.00 2.2 / 2.0 VA

1)

SAS81.00U 2.2 / 2.0 VA

1)

SAS81.03 2.5 / 2.1 VA

1)

SAS81.03U 2.5 / 2.1 VA

1)

SAS81.33 3.4 / 2.4 VA

1)

SAS81.33U 3.4 / 2.4 VA

1)

Function data Positioning times with the specified nominal

stroke / nominal angular rotation
SAS..0 SAT..008 120 s 8 s
SAS..3/..3U SAT..51 30 s 15 s

Positioning force 400 N 300 N
Nominal stroke 5.5 mm 5.5 mm
Torque
Nominal angular rotation
Permissible medi um te mperature

(valve fitted)

1...130 °C 1…130 °C

briefly 150 °C

Signal inputs Y positioning signal

SAS31.. SAT31.008

3-position

SAS81.. SAT31.51
SAS61.. SAT61.008

DC 0...10 V / DC 4...20 mA / 0... 1000 Ω

SAT61.51

SA..61.. (D C 0...10 V) Current draw ≤ 0.1 mA

Input imp ed ance ≥ 100 kΩ

SA..61.. (DC 4...20 mA) Current draw DC 4...20 mA ± 1 %

Input imp ed ance ≤ 500 Ω

Parallel operation SA..61.. ≤ 10 (depending on controler output)

Forced control Positioning signal Z SA..61.. R= 0…1000 Ω, G, G0

R = 0…1000 Ω Stroke / rotation proportional to R

Z connected to G Max. str oke 100 % Max. stroke 100 %

Z connected to G0 Min. stroke 0 % Min. stroke 0 %

Voltage Max. AC 24 V ± 20 % / Max. DC 24 V + 20 % / -15%

Current draw ≤ 0.1 mA

Position feedback U SA..61.. DC 0...10 V ± 1 %

Load imped ance > 10 kΩ res.

Load Max. 1 mA

Connecting cable Wire cross-secti onal areas 0.7 5…1.5 mm2, AWG 20…16

2

)

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SAS.. SAT..

Cable entries SA.. EU:

1 entry Æ 16.4 mm (for M16)
1 entry Æ 20.5 mm (for M20)

SA..U US:

2 entries Æ 21.5 mm for ½“ tube connection

Degree of protection Housing protection IP 54 as per EN 60529

3

)

Mounting position vertic al
Insulation class As per EN 60730
Actuators SA..31.. AC 230 V II
Actuators SA..61.. AC / DC 24 V III
Actuators SA..81.. AC / DC 24 V III

Environmental
conditions

Operation IEC 60721-3-3

Climatic conditions Class 3K5
Mounting location Indoors, outdoors

4)

Temperature general -5…55 °C
Humidity (noncondensing) 5…95 % r. h.
Transport IEC 60721-3-2
Climatic conditions Class 2K3
Temperature -25…70 °C
Humidity <95 % r. h.
Storage IEC 60721-3-1
Temperature -15…55 °C
Humidity 5…95 % r. h.

Directives and
Standards

Product sta nd ar d EN60730-x
Electromagnetic compatibility (Application) For residential, commercial and in dus trial en vironments
EU Conformity (CE) CE1T4581xx

5)

RCM Conformity CE1T4581en_C1

5)

UL, cUL AC / DC 24 V

UL 873 http://ul.com/database

Environmental
compatibility

The product environmental declarati on CE1E4581

5

)

contains

data on environment ally compati ble product design an d

assessments (RoHS compliance, materials composition,

packaging, environmental b enefit, disposal).

Dimensions See Dimensions (page 42)
Weight Excl. packaging See Dimensions (page 42)
Accessories

6)

Auxiliary switch
ASC10.51

Switching capacity AC 24…230 V , 6 (2) A, floating

External supply lin e protect ion See section power supply

US installation, UL & cUL AC 24 V class 2, 5 A general purpose

Data sheet N4581 N4584

1)

Sec ond value: P ow er consumption in neutral position

2)

AWG = American wire gauge

Wire cross-sectional areas and fuses have to be well- matching, wh ich is the responsibility of the
planner / installer. Observe norm of pr otection m easures - pr ot ec tion agai nst overcurrent:
IEC 60364-4-43:2008 resp. german adoption HD 60364-4-43:2010.

3)

Also with weather shield ASK39.2

4)

Outdoors alw ays with weather shield ASK39.2, housing protecti on IP54 rem ains unchanged

5)

The d ocuments can be downloaded from http://siem ens.com/b t/download

6)

UL recog nized component

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6 Connection diagrams and

dimensions

6.1 Internal diagrams

SA..31..

SA..31.5..

Accessor y plug-in space A

1x ASC1 0.51

ASC10. 51

Accessor y plug-in space A

1x ASC1 0.51

ASC10. 51

SAS81..

SAS81.33, SAS81.33U

Accessor y plug-in space A

1x ASC1 0.51

ASC10. 51

SA T31.008

Accessor y plug-in space A

-

SA..61..

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6.2 Connection terminals

6.2.1 Actuators

AC 230 V, 3-position

System neutral (SN)
Positioning sign al (actuator’s st em extends / actuat or’s spindle turns clockwise)
Positioning signal (actuator’s stem retracts / actuator’s spindle turns counter-clockwise)

AC 230 V, 3-position

System neutral (SN)
Positioning sign al (actuator’s st em extends / actuat or’s spindle turns clockwise)
Positioning signal (actuator’s stem retracts / actuator’s spindle turns counter-clockwise)
Fail safe function

AC/DC 24 V, DC 0…10 V / 4…20 mA / 0…1000 Ω

Sytem neutral (SN)
System potential (S P)
Positioning signal for DC 0…10 V / 4…20 mA
Measuring neutral
Position feedback DC 0...10 V
Positioning signal forced control AC/DC ≤ 24 V, 0...1000 Ω

AC/DC 24 V, 3-position

System potential (S P)
Positioning sign al (actuator’s st em extends / actuat or’s spindle turns clockwise)
Positioning signal (actuator’s stem retracts / actuator’s spindle turns counter-clockwise)

AC/DC 24 V, 3-position

System potential (S P)
Positioning sign al (actuator’s st em extends / actuat or’s spindle turns clockwise)
Positioning signal (actuator’s stem retracts / actuator’s spindle turns counter-clockwise)
System neutral (SN)

AC 230 V, 3-position

System neutral (SN)
Positioning sign al (actuator’s st em extends / actuat or’s spindle turns clockwise)
Positioning signal (actuator’s stem retracts / actuator’s spindle turns counter-clockwise)
System potential (S P)

SA..31..

(without SAT31.008)

SA..31.5..

SA..61..

SA..81..

SAS81.33U

SAT31.008

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6.2.2 Electrical accessories

Adjustable switching points, AC 24…230 V

System potential (S P)
Closing (actuator’s stem extends / actuator’s spindl e turns cl ockwise)
Opening (actuator’s stem extends / actu ator’s spindle turns clockwise)

6.2.3 Cable labeling

The wires are color coded and labeled.

Connection

Cable

Description

Code No. Color Abbreviation

Actuators AC 230V N 4 blue BU System neu tral

Y1 6 black BK Positioning signal

Y2 7 white WH Positioning signal

L - System p otenti al

21 - Fail safe function

Actuators AC 24 V
resp. AC/DC 24 V

G 1 red RD System potential

G0 2 black BK Syst em neutral

Y1 6 violet VT Positioning signal

Y2 7 orange OG Positioning signal

Y 8 grey GY Positioning signal

M - - Measuring neutral

U 9 pink PK P ositi on feedbac k

Z - - Positi onin g sig n al f orc ed cont r ol

Auxiliary switch
ASC10.51

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6.3 Connection diagrams

SA..31.. SA..31.5..

A Actuator
L Phase
N Neutral
N1 Controller
Y1, Y2 Positioning signals
21 System pot enti al

SA..61..

SAS61.33
SAS61.33U
SAS61.53

A Ac tuator
F1 Temperature limit er
F2 Frost protection thermostat; terminals:

1 – 2 frost hazard / sensor is interrupted (thermostat closes with frost)
1 – 3 normal operation

F3 Temperature detect or
F4 Frost protection m onitor with 0…1000 Ω sig nal output,

does NOT support QAF21.. or QAF61..

M Measuring neutral
N1 Controller
SN S yst em n eutral
SP System potential AC/DC 24 V
U Position feedback
Y Positioning signal
Z Positioning signal forced control

SA..81.. SAS81.33, S AS 81. 33 U

A Ac tu ator
F1 Temperatur e limi ter
N1 Controller
SN System n eutral
SP System potential AC/DC 24 V
Y1, Y2 Positioning signals

SA..31..

SA..61..

SA..81..

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6.4 Dimensions

6.4.1 Stroke actuators

Dimensions in mm, weights in kg

1 SA..: M16
SA..U: ½" (Ø 21.5 mm)
2 SA..: M20
SA..U: ½" (Ø 21.5 mm)

Product no. A B C C1 C2 D E ► ►►

SAS.. / SAT.. 151 80 93 21.9 71.1 29.9 21.8 100 200 0.40
With ASK39.2 155 126 248 99 149 29.9 21.8 100 200 0.55

With manual adjuster

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1 SA..: M16
2 SA..: M20

Product no. A B C C1 C2 D E ► ►►

SAT.. / SAT.. 13 7.6

1)

151

2)

80 106.5 21.9 84.6 29.9 21.8 100 200 0.68

With ASK39.2 155 126 248 99 149 29.9 21.8 100 200 0.83

1)

Black cover

2)

Blue manual adjuster

Without manual
adjuster

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Revision numbers

Product no.

Valid f rom

rev. no.

Product no.

Valid f rom

rev. no.

Product no.

Valid f rom

rev. no.

SAS31.00 ..A SAT31.008 ..A
SAS31.03 ..A SAT31.51 ..A
SAS31.50 ..A SAT61.008 ..A
SAS31.53 ..A SAT61.51 ..A
SAS61.03 ..A
SAS61.03U ..A
SAS61.33 ..A
SAS61.33U ..A
SAS61.53 ..A
SAS81.00 ..A
SAS81.00U ..A
SAS81.03 ..A
SAS81.03U ..A
SAS81.33 ..A
SAS81.33U ..A

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7 Glossary

7.1 Symbols

Caution, general danger – read the notes!

Caution, hot surface – read the notes!

Condition as supplied to costumer

Crosstip screwdriver (Po zidriv)
Slotted screwdriver

Screw wrench

Allen key

7.2 Terms

The Synchronisation of the mechanical position and the internal position control will
be perform ed (after manual operation).

A DIL switch shows the switching choices in the form of a place value system (dual
in line) in relation to basis 2 (on and off).

Nominal size [mm]: Characteristic for matching parts of the piping system.

The fail safe function ensures that the actuator is driven to a defined end position
also in the event of a power f ailure. In normal situations, dampers are shut or
valves closed, thus cutting off the medium flow.

Unit of pressure: 100 kPa = 1 bar = 10 mWS.

Nominal flow rate: Nominal flow rate of cold water (5…30 °C) through the fully
open valve (H

100

) at a differential pressure of 100 kPa (1 bar).

Light emitting diode.

The actuator stem lifts off the valve stem slightly (0.2 mm), so that the valve closed
securely. If the valve opens again, this idle stroke has to be overcome, before the
valve really opens (valve characteristic has an effect).

PN class [bar]: Charac teristic relating to the combination of mechanical und
dimensional properties of a component in the piping system.

Signal used to acquire the position, fed back via an input.

Forced control serves for overriding automatic mode and is implemented in the
structure.

ClosedPosition­Synchronisation

DIL switches

DN

Fail safe function

kPa

k

vs

LED

Idle strok e

PN

Position feedback

Forced control

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Maximum permissible differential pressure across the valve's control path, valid for
the entire actuating range of the motorized valve (V = diverting mode).

Maximum permissibl e differential pressure at which the motorized valve will close
securely against t he pressure (close off pressure).

Δp

max /ΔpmaxV

Δp

s

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Index

3-positio n control.............................................. 23

A/D conver s ion ........................................... 23, 25

About this documenta tion .................................. 5

Acces sories ...................................................... 10

Electrica l acce sso ries ...................................... 10

Mechan ical accesso ries ................................... 10

Automa tic operation ......................................... 3 3

Auxilia ry switch ......................... 16, 19, 21, 35 , 40

Before you star t .................................................. 5

Brushles s DC m otor ................................... 23, 25

Cable entries ..................................................... 18

Cable glands ..................................................... 18

Cable labelin g ................................................... 4 0

Calibrati on ............................................. 20, 25, 27

Calibrati on slot .................................................. 25

Changeov er of characteris tic ........................... 25

Charac teristic s functi on ................................... 25

Commissioning ................................................. 20

Connectio n dia gra ms ................................. 38, 41

Connectio n terminal ......................................... 39

Actuator ........................................................... 39

Electrica l acce sso ries ...................................... 40

Content s .............................................................. 3

Control ............................................................... 23

Control functi ons ........................................ 23, 25

Control of directi on ........................................... 23

Copyright ............................................................ 5

Coupling ............................................................ 31

Cross-s ectional area ......................................... 1 3

Deliver y ............................................................... 8

Detection of fore ig n bodies ........................ 25, 30

Detection of va lve sea t ..................................... 29

Deviations ......................................................... 24

DIL switch .................................................... 25, 26

Dimensio ns ....................................................... 42

Stro ke actua tors .............................................. 42

Disposal ............................................................ 22

Document use ..................................................... 6

Electric al acce ssories ....................................... 3 5

Electric al connec tions ........................................ 7

Electric al planners .............................................. 6

Engineering ......................................................... 7

Equipment combinations

2-port threaded valves ....................................... 9

3-port threaded valve ......................................... 9

3-port threaded valves ....................................... 9

Fail safe function ......................... 8, 23, 25, 28, 32

Fitting

Accessories ..................................................... 15

Stro ke actua tors .............................................. 14

Forced con tr ol ............................................. 25, 30

Foreign bodies.................................................. 30

Formula s for wir e le ngt hs ................................ 13

Function chec k ................................................. 20

Function principle ............................................ 31

Functions .......................................................... 23

Gear train ..................................................... 23, 25

Glossa ry ............................................................ 45

Handlin g ............................................................ 14

Housing cover ................................................... 11

Housing of sprin g return .................................... 7

HV AC plants ........................................................ 6

Identifica tion of seat .................................... 23, 25

Indicator s .......................................................... 34

Indoor use ......................................................... 14

Instal lati on ........................................................ 14

Interior vie w ...................................................... 15

Interna l dia gr a m s.............................................. 38

L/P-dia gra m ...................................................... 13

LED.................................................................... 25

Maintena nc e ..................................................... 22

Manual adjus te r ............................. 7 , 8, 23, 25, 33

Manual operati on .............................................. 33

Mechanic al access ories ................................... 35

Mechanic al desi gn ............................................ 31

Modulat ing c ontr ol ........................................... 25

Motor control ............................................... 23, 25

Mountin g ........................................................... 14

Mountin g pos itions .......................................... 1 4

Navigatio n ........................................................... 5

Operati ng volt age ..........................................8, 13

Operati on .......................................................... 20

Operati onal sta tus ............................................ 34

Orderi ng .............................................................. 8

Outd oor use ...................................................... 14

Paralle l opera ti on ............................................. 12

Permis sible cable length .................................. 12

Permis sible v oltage dr o p ................................. 13

Permis sible wire length .................................... 13

Plug-in spa ce .................................................... 16

Positio n control ................................................ 25

Positio n feed back ..........................................8, 27

Positio n in dic a tion ........................................7 , 34

Positioning signal.................. 8, 20, 21, 23, 25, 26

Positioning time ............................................8, 24

Power consumptio n ......................................8, 13

Power supply .................................................... 25

Power trans m iss i on ........................................... 7

Print..................................................................... 7

Product descripti on ............................................ 7

Product rep lac eme nt s ...................................... 10

Electrica l access ories ....................................... 11

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Stro ke actuato rs SQX.. zu SAX.. ...................... 10

Quality assurance ............................................... 6

Refere nce documents ......................................... 5

Request to the reader ......................................... 6

Revision history .................................................. 5

Revision numbers ............................................. 44

Scope of this docume nta tion ............................. 6

Signal priorit ies................................................. 28

Sizing................................................................. 12

Spa re parts ........................................................ 11

Sta tus indica tion ................................................. 7

Strok e model ..................................................... 2 4

Symbols ............................................................ 4 5

Tec hnica l data ................................................... 3 6

Tec hnical design ............................................... 31

Ter ms .................................................................45

Tra demarks ......................................................... 5

Transmission of power......................................31

Type summary

Stro ke actuato rs ................................................ 8

Use ...................................................................... 7

User interfa ce ..................................................... 7

voltage drop .......................................................12

V olumendurc hflus s ...........................................26

W a r ranty ............................................................13

Wea ther shield ............................................. 17 , 35

Wire cr oss-sectional area .................................12

Wire endin gs ......................................................18

Wiring ........................................................... 17, 18

Y oke .................................................................... 7

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Siemens Switzerland Ltd
Building Technologies Division
International Headquarters
Gubelstrasse 22
6301 Zug
Switzer l and
Phone [phone]

www.siemens .com/bu ildingtec hnologi es

© Siemens Switzerland Ltd, 2015

Technical specif ications and avail ability subject to change with out notice.