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Siemens

Actuators SAS.., SAT.. for valves

CE1P4041en

Smart Infrastructure

Functions

and control

2019-04-09

Min / Max (depends on Min/Max settings)

Stop

Backup
mode

513,

514, 515

In case the communication to the controller is lost, the device can be

configured to go into a defined state.

Default setting mode is “keep last setpoint”, i.e. in case of communication

loss, the device controls to the last received setpoint.

If the backup mode is enabled, it can be configured as follows:

go to a predefined backup position

keep current position

Restarting
the device

256

Restarting is possible by:

Power-reset (turning operating voltage off and on) or

by “ReInitDevice” command.

Device re-initializes and sets all process values to defaults.

Reset

The actuator supports the following re-initialization / reset behaviour:

Local reset by push-button

Remote reset: Using “RemoteFactoryReset” command.

Effect of reset:

Process values: set to ex-works default values.

Parameters:

Application and actuator parameters are set to factory defaults,

Network parameters are reset only in case of local reset, not by remote

reset (otherwise loss of communication).

Not reset are: Counters, status flags, device info, and factory data.

Self test

256

When triggered, the self test drives the actuator to the detected limits and sets

the flags in register 769 according to the result (bit 09 = 1

”failed” or bit 10 = 1

“passed”).

The self test is not passed when the limits were not reached from the lower

end (results in jam). If the Min/Max limits can be exceeded, the self test is not

evaluated as failed.

Communication

Communications protocol

Modbus RTU

RS-485, not galvanically separated

Number of nodes

Max. 32

Address range

1...247 / 255

Factory settings: 255

Transmission formats

1-8-E-1 / 1-8-O-1 / 1-8-N-1 / 1-8-N-2

Factory settings: 1-8-E-1

Baud rates (kBaud)

Auto / 9,6 / 19,2 / 38,4 / 57,6 / 76,8 / 115,2

Factory settings: Auto

Bus termination

120

electronically switchable

Factory settings: Off

Communication
properties

Содержание Acvatix SAS Series

Страница 1: ...Smart Infrastructure SAS31 03 SAS61 53 SAS61 33 SAS61 03 MO Acvatix Actuators SAS SAT for valves Basic Documentation CE1P4041en 2019 04 09 ...

Страница 2: ...019 04 09 Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a 6300 Zug Switzerland Phone 41 58 724 24 24 www siemens com buildingtechnologies Siemens Switzerland Ltd 2019 Technical specifications and availability subject to change without notice ...

Страница 3: ...ories 11 2 6 1 Electrical accessories 11 2 6 2 Mechanical accessories 11 2 7 Product replacements 11 2 7 1 Stroke actuators SAS SAT to SQS 11 2 7 2 Electrical accessories 12 2 8 Spare parts 12 2 9 Sizing 13 2 9 1 Parallel operation of actuators 13 2 9 2 Permissible cable length and wire cross sectional area 13 2 10 Warranty 14 3 Handling 15 3 1 Mounting and installation 15 3 1 1 Mounting positions...

Страница 4: ...n description 38 4 4 Technical and mechanical design 41 4 4 1 Transmission of power 41 4 4 2 Kopplung 41 4 4 3 Fail safe function 41 4 4 4 Manual adjuster 42 4 4 5 Indicators 43 4 4 6 Electrical accessories 44 4 4 7 Mechanical accessories 44 5 Technical data 45 6 Connection diagrams and dimensions 47 6 1 Internal diagrams 47 6 2 Connection terminals 48 6 2 1 Actuators 48 6 2 2 Electrical accessori...

Страница 5: ... 4 5 2 1 2017 05 08 New Communicating actuators SAS61 03 MO Title image 2 3 1 1 3 2 2 4 3 5 6 7 Supplement Adapter set ASK30 3 1 3 4 4 7 Modified Connectiion terminals disposal positioning time stroke model 3 1 4 3 2 3 4 1 2 2 2019 04 09 New Combination with RVD controllers 4 1 1 1 3 Reference documents Type of document SAS SAT Data sheet N4581 N4584 Data sheet communications profile Modbus A6V101...

Страница 6: ...ight This document may 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 1 4 3 Quality assurance These documents were prepared with great care The contents of all documents are checked at regular intervals All necessary corrections are included in subsequent versions Anpassung...

Страница 7: ...s com content 00001123 default aspx From the Siemens branch office near you www siemens com acvatix or from your system supplier From the support team at headquarters fieldsupport zug ch sbt siemens 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 im...

Страница 8: ... seat slipper valve SAS SAT SAS SAT SAS 5 SAT 5 SAS 33 A1 Manual adjuster with slide switch A2 Dummy cover without manual adjuster A3 Manual adjuster without slide switch 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 See Section 3 2 2 Commissioning Modbus RTU 2 2 Use For use in connection wit...

Страница 9: ...101 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 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 no yes 1 3 SAT31 51 S55158 A120 5 5...

Страница 10: ... Inch m 3 h kPa kPa VVG55 15 1 15 G 3 4 B 0 25 0 4 0 63 1200 2500 VVG55 15 1 15 G 3 4 B 1 1 6 2 5 1200 2000 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 VVG55 to be replaced by VVG549 as of January 1 2017 2 5 2 2 port 3 port threaded valves with stroke actuator SAS and SAT Typical applications District heating plants Actuators Stroke Positioning force ...

Страница 11: ...e idle stroke and Positioning time if changed to ensure stable control The replacement of accessory items needs to 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 Product no s N DN15 40 DN15 25 DN15 25 SQS35 00 SQS359 00 189 150 ...

Страница 12: ...e 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 available Stock number Description S55845 Z180 Type ASQ1 Housing cover with screws and...

Страница 13: ...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 S...

Страница 14: ...gth AC 230 V 2 of AC 230 V L 46 P A 1313 m AC 24 V 4 of AC 24 V L P A 1313 m 1 of DC 10 V L DC I A 5 47 m A Cross sectional area of wire in mm 2 L Permissible wire length 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 engineering data specified in chapter 2 5 Equipment combinations page 10 are only guaranteed in connecti...

Страница 15: ...positions Indoor use Outdoor use 1 1 Only in connection with weather shield ASK39 2 housing protection IP54 remains unchanged SAS61 MO is not suitable for outdoor applications 3 1 2 Fitting stroke actuators SAS to threaded valves First observe chapter 3 1 1 Mounting positions 1 2 3 tighten firmly by hand 1 2 3 tighten firmly by hand SAS 0 SAT 0 SAS 5 ...

Страница 16: ...ge 11 3 Disconnect actuator auxiliary switch from power Attention if AC 230 V connected danger of life 4 Only 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 Manual operation and Fixing the position page 42 5 To fit an auxiliary switch the housing cover must be removed and the M16 knock ...

Страница 17: ...tch 1 screw Cable ties First observe Special notes on mounting page 16 1 2 3 No 1 4 Adjust switch position refer also to Manual adjuster page 42 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 ...

Страница 18: ...rve Special notes on mounting page 16 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 i...

Страница 19: ...nstallation Conduct the electrical connections in accordance with local regulations on electrical installations as well as chapter Connection terminals on page 48 The cable endings must be prepared before as follows A EU M20 US Connection actuator B EU M16 US Connection accessories Cable glands not contained in scope of delivery Metric Metric Inch thread M16 M20 Adapter set ASK30 Preparation of wi...

Страница 20: ...e 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 The actuator has a fixed connection cable As a result the left cable entry A is used 1 No 4 2 PZ 1 3 4 5 6 Observe Connection terminals page 48 Notes Preconditions Communicating actuators Actuator ...

Страница 21: ...nditions specified in chapter Technical data page 45 Actuator is mechanically connected to a Siemens valve Actuator is in Manual operation mode page 42 If available the actuator can be operated with the help of the Manual adjuster see page 42 Manual adjuster Stroke actuator Control path valve AàAB Bypass valve B à AB Turning in clockwise direction Actuator s stem extends Opening Closing Turning in...

Страница 22: ...age 16 1 Bridge contact 2 Check LED page 43 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 Connection terminals Stroke actuator Control path valve AàAB Bypass valveur BàAB Position feedback U log 2 lin 2 log 2 lin 2 Y 6 V 13 6 mA Actuator s stem extends 30 Actuator...

Страница 23: ...ns the position 3 2 2 Commissioning Modbus RTU The devices were developed specifically for use with Climatix push button configuration as described in document CE1A3975 1 As an alternative the bus can be configured via the local HMI see Section User interface pg 24 Check the following during commissioning Bus configuration address baud rate type of transmission and optional termination Standard ad...

Страница 24: ...on can be established from Modbus master programming tool following startup by means of the preset transmission format and baud rate or auto baud With an existing connection the bus and actuator parameters can be set to target values via the bus During write access to the bus parameters 1 Load must be written to register 768 within 30 seconds to ensure the changes are not discarded ...

Страница 25: ...nation On Off Switch on 1 Press button 3x Blinking or flickering of LED stops termination mode 2 Press button 1x briefly Blue LED blinks once 3 Press button until the LED turns red RED LED is lit confirmation 4 Release button LED not lit Address is indicated LED blinks blue once following address indication Device enters normal mode Switch off 1 Press button 3x Blinking or flickering of LED stops ...

Страница 26: ...dbus address press the button 1s Colors 1st digit red 2nd digit green 3rd digit orange Example for address 124 LED Note The address is entered and displayed beginning at the lowest digit 1st digit see figure above Example 124 starts with 4x red 1 Enable addressing mode Press button 1s until the LED is red then release button before LED goes off 2 Enter the numbers Push button n times à LED blinks ...

Страница 27: ...LED is red release button à The address is saved and displayed 1x for confirmation Set address 5 1 Enable addressing mode 2 Enter the 1st digit Press button 5x à LED blinks red each time the button is pressed Save address Press button until LED is red release button à The address is saved and displayed 1x for confirmation 3 2 3 Maintenance The actuators are maintenance free Mounting Do not touch t...

Страница 28: ...e function Manual adjuster Positioning signal Stroke actuator Control path valve AàAB Bypass valve B à AB Voltage at Y1 Actuator s stem extends Opening Closing Voltage at Y2 Actuator s stem retracts Closing Opening Voltage at Y1 and Y2 Actuator s stem maintains the position Maintains the position No voltage at Y1 and Y2 Actuator s stem maintains the position Maintains the position No voltage at Y1...

Страница 29: ...egend diagram A Mechanical end position in actuator B Valves with 5 5 mm nominal stroke X Time to override idle stroke delay time see glossary Deviations occur after several positioning signals Y1 and Y2 in the same direction since the stroke movement starts with a delay of 50 ms SAT31 SAS31 53 SAS81 33 or 300 ms SAS31 81 when positioning signals Y1 and Y2 are active for less than 50 ms or 300 ms ...

Страница 30: ...rol loops e g equipped with an SIGMAGYR RVD controller and SQS359 05 actuator1 work with pulses down to 40 ms Some of the actuators mentioned above are not able to work with these short pulses The following table shows which actuators can be used for those special applications Controller Plant type Preferred actuator Valve line DN kvs RVD130 1 RVD1357109 1 RVD135 309 1 RVD140 RVD144 109 RVD145 109...

Страница 31: ...nal 4 A D conversion 5 Power supply 6 Control functions Identification of seat Position control Motor control Detection of foreign bodies Calibration Forced control Characteristics function Manual adjustment 7 Brushless DC motor 8 Gear train Fail safe function Manual adjuster Positioning signal Stroke actuator Control path valve AàAB Bypass valve B à AB Signal Y Z increasing Actuator s stem extend...

Страница 32: ...ing SAT Characteristic curve lin linear switch at ON Positioning signal DC 0 10 V switch at OFF Flow characteristic Actuator SAS Valve VVG44 VXG44 Valve actuator combined Valve actuator heat exchanger combined Y Z Positioning signal H Stroke V Volumetric flow Q Heat transfer capacity Positioning signal Y Position feedback U Flow characteristic ON DC 4 20 mA DC 0 10 V lin linear OFF ON DC 0 10 V DC...

Страница 33: ...n related mechanical tolerances of the individual valves and to guarantee accurate positioning and position feedback a calibration should be performed when the plant is commissioned page 21 During commissioning the actuator detects the valve s end positions and files the exact stroke in its internal memory Calibration takes place in the following phases Actuator drives to the upper end position 1 ...

Страница 34: ...pindle turns manually in counterclockwise direction to 30 Bold printing positioning 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 provided power is applied Z 3 The position is determined by positioning signal Y provided power is applied and positioning signal...

Страница 35: ... of the 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 4 2 6 Detection of foreign bodies The actuator detects when the valve is clogged and adjusts its operational behavior accordingly to preven...

Страница 36: ...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 upon return of power at 50...

Страница 37: ...ators page 43 As long as the external setpoint is greater than the position of the high limit valve clogging the deviation between the setpoint and position feedback in register 769 is displayed with the warning Mechanical error device blocked manual intervention or calibration The LED on the cable adapter is red The warning is reset if the external setpoint drops below the high limit valve cloggi...

Страница 38: ...n feedback changes to 0 once the manual adjuster is pressed and remains on the value during manual adjustment The actuator detects manual action based on the deviation between the setpoint and the stroke position and reports in register 769 with the warning Mechanical error device blocked manual intervention or calibration The LED on the actuator cover blinks green the LED on the cable adapter is ...

Страница 39: ...100 262 Actuator runtime R s 1 30 263 Positioning signal characteristic between Y and U RW 0 Linear e g SAX61 MO V_G41 1 Logarithmic e g SAS61 MO V_G44 264 Tolerance blockade monitoring RW 0 01 0 10 513 Backup mode RW 0 Move to backup position 1 Maintain last position 2 Disable 514 Backup position RW 0 01 0 100 515 Backup timeout RW s 1 0 65535 516 Startup setpoint RW 0 01 0 100 764 Modbus address...

Страница 40: ... Char_8 7 R 1414 ASN Char_6 5 R 1415 ASN Char_4 3 R Reserve 1416 ASN Char_2 1 R Status Bit 00 1 Reserved Bit 06 1 Adaption conducted Bit 01 1 Backup mode active Bit 07 1 Adaption running Bit 02 1 Reserved Bit 08 1 Adaption error Bit 03 1 Reserved Bit 09 1 Self test failed Bit 04 1 Mechanical error device blocked manual intervention or calibration Bit 10 1 Self test successful Bit 05 1 Life cycle r...

Страница 41: ...mand Effect of reset Process values set to ex works default values Parameters o Application and actuator parameters are set to factory defaults o Network parameters are reset only in case of local reset not by remote reset otherwise loss of communication Not reset are Counters status flags device info and factory data Self test 256 When triggered the self test drives the actuator to the detected l...

Страница 42: ...mmodates the return spring 4 4 2 Kopplung SAS SAT Antriebsstössel und Ventilstössel stossen aufeinander Sie sind nicht fix miteinander verbunden 4 4 3 Fail safe function The fail safe function works mechanically with a return spring and ensures the protection of the plant It guarantees the safe operation in uncontrolled operating states In the event of a power failure the actuator will return to i...

Страница 43: ...ection 2 the actuator s stem extends CAUTION Turning the manual adjuster in counterclockwise direction is not possible An overload protection prevents damage to the manual adjuster Upon actuation and locking the slide switch the manual adjuster remains engaged When in this mode do not turn the manual adjuster manual adjuster locked After pushing and slightly turning the manual adjuster in counterc...

Страница 44: ...D can be viewed through a light conductor When the housing cover is removed the LED can be viewed through a hole The status indication informs about the operational state of the actuator LED Indication Operating state Remarks troubleshooting Green On Automatic mode Normal operation Blinking Calibration Wait until calibration is finished then green or red light In manual mode Manual adjuster in MAN...

Страница 45: ...2 is open then S1 S3 is closed When using an auxiliary switch position feedback can trigger an automatic stop of the circulating pump in the end position Fully closed 4 4 7 Mechanical accessories To protect the actuator from weather effects when used outdoors the weather shield ASK39 2 must always be fitted The housing protection IP54 remains unchanged See also page 14 Adapter set for ex Landis Gy...

Страница 46: ...5 0 VA 1 SAS81 00 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 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 Permissible medium temperature valve fitted 1 130 C 1 130 C briefly 150 C up to 150 C max 6 of 24 hours ...

Страница 47: ...midity 5 95 r h Directives and Standards Product standard EN60730 x Electromagnetic compatibility Application For residential commercial and industrial environments EU Conformity CE SAS CE1T4581xx 4 SAT CE1T4584xx 4 RCM Conformity SAS CE1T4581en_C1 4 SAT CE1T4584en_C1 4 UL cUL AC DC 24 V UL 873 http ul com database EAC compliance Eurasia compliance for all SA variants Environmental compatibility T...

Страница 48: ...y plug in space A 1x ASC10 51 ASC10 51 Accessory plug in space A 1x ASC10 51 ASC10 51 US installation UL cUL AC 24 V class 2 5 A Gen Purp SAS61 MO Accessory plug in space A AC 24 V DC 24 V 1x ASC10 51 ASC10 51 US Installation UL cUL AC 24 V class 2 5 A Gen Purp SAS81 0 SAS81 33 SAS81 33U Accessory plug in space A AC DC 24 V M 1x ASC10 51 ASC10 51 US installation UL cUL AC 24 V class 2 5 A Gen Purp...

Страница 49: ... 0 1000 Ω Sytem neutral SN System potential SP 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 Modbus RTU connection cable System neutral SN System potential SP AC 24 V DC 24 V Reference Modbus RTU Bus Modbus RTU Bus Modbus RTU black red violet grey pink AC DC 24 V 3 position System potential SP...

Страница 50: ...Cable Description Code No Color Abbreviation Actuators AC 230V N 4 blue BU System neutral Y1 6 black BK Positioning signal Y2 7 white WH Positioning signal L System potential 21 Fail safe function Actuators AC 24 V resp AC DC 24 V G 1 red RD System potential G0 2 black BK System neutral Y1 6 violet VT Positioning signal Y2 7 orange OG Positioning signal Y 8 grey GY Positioning signal M Measuring n...

Страница 51: ...e are no potential insulation mistakes to the wiring that could cancel out the temperature limiter s control action applies to both 230 V as well as 24 V types Comply under all circumstances to the warning above when grounding SN e g PELV SA 31 SA 31 5 A Actuator L Phase N Neutral N1 Controller Y1 Y2 Positioning signals 21 System potential SAT31 008 L Y1 Y2 N1 L N N AC 230 V L SA 31 Warning ...

Страница 52: ... thermostat closes with frost 1 3 normal operation F3 Temperature detector F4 Frost protection monitor with 0 1000 Ω signal output does NOT support QAF21 or QAF61 M Measuring neutral N1 Controller SN System neutral SP System potential AC DC 24 V U Position feedback Y Positioning signal Z Positioning signal forced control SAS61 03 MO A Actuator N1 Controller SN System neutral SP System potential AC...

Страница 53: ...es CE1P4041en Smart Infrastructure Connection diagrams and dimensions 2019 04 09 SA 81 SAS81 33 SAS81 33U A Actuator F1 Temperature limiter N1 Controller SN System neutral SP System potential AC DC 24 V Y1 Y2 Positioning signals SAS81 0 SA 81 ...

Страница 54: ...e actuators Stroke actuators SA with manual adjuster Typ A mm B mm C mm C1 mm C2 mm D mm E mm F Zoll mm mm kg 1 2 SAS SAT 151 80 93 21 9 71 1 29 9 21 8 G 100 200 0 40 M16 1 3 M20 1 3 SAS MO 2 0 55 With ASK39 2 155 126 248 99 149 0 55 1 SA U Ø 21 5 mm 2 Device equipped with a fixed connection cable Left cable entry is used 3 Thread length max 9 mm ...

Страница 55: ... dimensions 2019 04 09 Stroke actuators SA without manual adjuster Typ A mm B mm C mm C1 mm C2 mm D mm E mm F Zoll mm mm kg 1 2 SAS 137 6 1 151 2 80 106 5 21 9 84 6 29 9 21 8 G 100 200 0 68 M16 3 M20 3 Mit ASK39 2 155 126 248 99 149 0 83 1 Black cover 2 Blue manual adjuster 3 Thread length max 9 mm ...

Страница 56: ...15 1 1 Already included in total weight Dimensions in mm Revision numbers Product no Valid from rev no Product no Valid from rev no Product no Valid from rev no SAS31 00 B SAT31 008 B SAS31 03 B SAT31 51 B SAS31 50 B SAT61 008 B SAS31 53 B SAT61 51 B SAS61 03 B SAS61 03U B SAS61 03 MO B SAS61 33 B SAS61 33U B SAS61 53 B SAS81 00 B SAS81 03 B SAS81 03U B SAS81 33 B SAS81 33U B ...

Страница 57: ...ff 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 failure 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 ope...

Страница 58: ...e position fed back via an input Forced control serves for overriding automatic mode and is implemented in the structure Maximum permissible differential pressure across the valve s control path valid for the entire actuating range of the motorized valve V diverting mode Maximum permissible differential pressure at which the motorized valve will close securely against the pressure close off pressu...

Страница 59: ...8 Electrical planners 7 Engineering 8 Equipment combinations 2 port threaded valves 10 3 port threaded valves 10 3 port valves 10 Fail safe function 9 28 30 33 41 Fitting Accessories 16 Stroke actuators 15 Forced control 30 35 Foreign bodies 34 Foreign body detection 36 38 Formulas for wire lengths 14 Fremdkörperdetektion 37 Function check 21 Function principle 41 Functions 28 Gear train 28 30 Glo...

Страница 60: ...der 7 Revision history 5 Revision numbers 56 Scope of this documentation 7 Signal priorities 33 Without fail safe 39 40 Signal prioritites Without fail safe 39 Sizing 13 Spare parts 12 Status indication 8 Stroke model 29 Symbols 57 Technical data 45 Technical design 35 41 Technology 35 Terms 57 Trademarks 6 Transmission of power 41 Type summary Stroke actuators 9 Use 8 User interface 8 Valve seat ...

Страница 61: ...frastructure Global Headquarters Theilerstrasse 1a 6300 Zug Switzerland Phone 41 58 724 24 24 www siemens com buildingtechnologies Siemens Switzerland Ltd 2019 Technical specifications and availability subject to change without notice ...

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