SAS31.03 SAS61.53 SAS61.33 SAS61.03/MO Acvatix™ Actuators SAS.., SAT..
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. 2 / 60 Siemens Smart Infrastructure Actuators SAS.., SAT..
Contents 1 About this documentation ................................................................... 5 1.1 Navigation ............................................................................................. 5 1.2 Revision history ..................................................................................... 5 1.3 Reference documents ............................................................................ 5 1.4 1.4.1 1.4.2 1.4.3 1.4.4 Before you start .............................
.2.4 4.2.5 4.2.6 4.2.7 Signal priorities .................................................................................... 33 Detection of valve seat......................................................................... 34 Detection of foreign bodies .................................................................. 34 Forced control Z .................................................................................. 35 4.3 4.3.1 4.3.2 4.3.3 4.3.4 4.3.5 Communicating actuators Modbus RTU .........
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: Note Glossary and Index are arranged at the end of the document. 1.2 Revision history Revision First edition 2.0 Date 2015-05-19 2016-02-26 2.1 2017-05-08 2.2 2019-04-09 1.3 Changes Corrections in: Technical Data, Equipment Combinations, use of vocabulary, Mounting Position, Connection Diagrms New: Communicating actuators (SAS61.
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 TM Acvatix Legal owner Siemens Switzerland Ltd All product names listed in the table are registered (®) or not registered (™) trademarks of the owner listed in the table. We forgo the labeling (e.g.
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 (equipment, 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.
2 Engineering 2.1 Product description The line of small actuators is comprised of stroke actuators SAS.. and SAT.. Mechanical design 1 User interface Electrical connections 2 Power transmission and preparation Print Motor 3 Yoke (for assembly of actuator and seat, slipper valve) SAS.., SAT.. Components SAS.. / SAT.. A1 A2 A3 B C D E F G H Network functions SAS..33..
Product no. Stock no. 2.3 Type summary 2.3.1 Stroke actuators All types: · Stroke · Positioning force Operating voltage Positioning signal 5.5 mm SAS.. SAT.. 400 N 300 N Fail safe Positioning function / Manual Power 8) time Spring return adjuster consumption time SAS31.00 S55158-A106 2.8 / 2.4 VA 5) 120 s 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) SAS31.53 S55158-A109 5.5 / 3.8 VA 5) 30 s yes / <14 s 6) SAS61.
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 conditioning plants PN 16 Medium Data sheet VVG44.. PN 16 1…120 °C Medium N4364 Data sheet 1) VVG44.15-.. Actuators Stroke Positioning force Data sheet SAS.. 5.5 mm 400 N N4581 VXG44.. SAS.. 1…120 °C DN N4464 G kvs ∆pmax ∆ps 3 [Inch] [m /h] [kPa] [kPa] 1) 15 G1B 0.25 / 0.4 / 0.
2.6 Accessories 2.6.1 Electrical accessories Product no. Accessory Description SAS.. / SAT.. ASC10.51 Auxiliary switch 2.6.2 Mechanical accessories Product no. Accessory Description SAS.. / SAT.. ASK39.2 Weather shield SAS.. ASK30 1) 2) Adapter set SAS61../MO is not suitable for outdoor applications 2) All ex-Landis & Gyr valves with a 4 mm or 5.5 mm strokes can be used with the adapterset: X3i.., VVG45.., VXG45.., VXG46.., VVI51... 2.7 Product replacements Replacement of SQS..
2.7.2 Notes Electrical accessories · If auxiliary switches are used, their switching points should be indicated 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 ASC9.6 Auxiliary switch 2.8 SQS.. ASC9.6 SAS.. ASC10.
2.9 Sizing 2.9.1 Parallel operation of actuators SAS31.. and SAS81.. 3-position actuators must have one specific controller each; refer to chapter 6.3 Connection diagrams (page 50). SAS61.. 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.
The following diagram can be used to determine the cable lengths and wire crosssectional areas. Cable length L L/P-diagram for AC/DC 24 V Power P Permissible cable length L as a function of power P and cross-sectional area of wire as a parameter Note Formulas for wire lengths 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.
3 Handling 3.1 Mounting and installation 3.1.1 Mounting positions Indoor use 1) Outdoor use 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. SAS..0.. SAT..0.. 1 2 3 tighten firmly by hand SAS..5.. 1 2 3 - tighten firmly by hand 15 / 60 Siemens Smart Infrastructure Actuators SAS.., SAT..
3.1.3 Special notes on mounting Accessories Before fitting the accessory items shown below, the following steps must be performed: 1. Actuator is mechanically connected to a Siemens valve. 2. Observe compatibility and choice of combinations. Refer to 2.6 (page 11). 3. Disconnect actuator, auxiliary switch from power. Attention if AC 230 V connected danger of life! 4.
Auxiliary switch ASC10.51 Plug-in space for accessory Scope of delivery · 1 auxiliary switch · 1 screw · Cable ties First, observe "Special notes on mounting" (page 16). 1 3 4 2 No.: 1 Adjust switch position (refer also to "Manual adjuster" page 42) Without fail safe function (SA..1.0..) 5 With fail safe function (SA..1.3.. / SA..1.5..) No.: 1 When initial situation: 0 Ω When initial situation: ∞ Ω 17 / 60 Siemens Smart Infrastructure Actuators SAS.., SAT..
6 7 Observe " Observe "Wiring (installation)" (page 19) Connection terminals" (page 48) 8 9 max. 1.2 Nm Note Before commissioning with the control, check the exact position again; see "Auxiliary switch", page 23. Weather shield ASK39.2 First, observe "Special notes on mounting” (page 16). Scope of delivery Weather shield ASK39.2 Notes 2 UV-proof cable ties · To protect the actuator from weather effects when used outdoors, the weather shield must always be fitted.
Adapter set ASK30 Adapter set for ex-Landis & Gyr valves with 4 mm or 5.5 mm strokes: X3i.., VVG45.., VXG45.., VXG46.., VVI51... See Mounting instructions M4365.2 3.1.4 Wiring (installation) Conduct the electrical connections in accordance with local regulations on electrical installations as well as chapter " Connection terminals" on page 48.
Notes · Without cable gland IP protection is not guaranteed! · Guide the cable in a loop to the cable gland, so water can drop off. Preconditions Prior to installation, the following preconditions must be satisfied: · Actuator is mechanically connected to a Siemens valve. · Housing cover is removed. Communicating actuators Actuator The actuator has a fixed connection cable. As a result, the left cable entry (A) is used.
Auxiliary switch ASC10.51 1 No: 3 2 Observe " 3 4 Connection terminals" (page 48) Manually 3.2 Commissioning and operation 3.2.1 Function check and Calibration Before making the function check, the following preconditions must be satisfied: · "Environmental conditions" specified in chapter "Technical data" (page 45) · Actuator is mechanically connected to a Siemens valve. · Actuator is in "Manual operation" mode (page 42).
· If the actuator is forced to travel beyond its end positions, overload protection responds. · Observe information given in chapter 4.2.1 Positioning signal and flow characteristic selection, page 31. Electrically Before making the function check, the following preconditions must be satisfied: · "Environmental conditions" specified in chapter "Technical data" (page 45). · Actuator is mechanically connected to a Siemens valve. · Actuator is in “Automatic” mode (page 42).
B à AB AàAB Voltage at Y1 Voltage at Y2 No voltage at Y1 and Y2 Only SAS31.50, SAS31.53, SAS81.33, SAS81.33U, SAT31.51 No voltage at G and G0 1) (fail safe function) 1) Actuator’s stem extends Actuator’s stem retracts Actuator’s stem maintains the position Opening Closing Maintains the position Closing Opening Actuator’s stem retracts (until end position is reached) Closing Opening Closing action is always completed first, also when power returns. Note Observe information given in chapter 4.2.
> 5s und < 10s (cf. page 24). Full configuration via bus: With a unique Modbus address, a connection 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.
Example: The table shows the register values before and after the change via bus access. Reg. Name Before change After change 764 Modbus address 246 12 765 Baud rate 0 = auto 1 = 9600 766 Transmission format 0 = 1-8-E-1 3 = 1-8-N-2 767 Bus termination 0 = Off 0 = Off 768 Bus conf.
LED Farben und Blinkmuster Color Blinking pattern Description Green 1s On / 5s Off Normal mode without bus traffic Flickering Normal mode with bus traffic Orange / green 1s orange / 1s green Device is in override control mode Orange 1s On / 1s Off Bus parameter not yet configured 1s On / 5s Off Device is in backup mode (replacement mode) Permanently lit Mechanical error, device blocked, manual intervention or calibration 1s On / 5s Off Internal error 0.
Example Set address "124": 1. Enable addressing mode 2. Enter the 1st digit: Press button 4x à LED blinks red each time the button is pressed 3. Save 1st digit: Press button until LED is green – release button 4. Enter the 2nd digit: Press button 2x à LED blinks green each time the button is pressed 5. Save 2nd digit: Press button until LED is orange – release button 6. Enter the 3rd digit: Press button 1x à LED blinks orange each time the button is pressed 7.
4 Functions and control 4.1 3-position control Example: brushless DC motor with fail safe function A 3-position signal drives the actuator via connection terminals Y1 or Y2. The required position is transferred to the valve.
The specified positioning times refer to the respective nominal stroke. 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 valve-actuator combination [mm] Positioning times stroke model Positioning time [sec] Legend diagram A B X Notes Mechanical end position in actuator Valves with 5.
4.1.1 Notes Combination with RVD.. controllers for direct domestic hot water distribution by heat exchanger The design based slow reaction on control signals of SAS31.., SAS81.. and SAT31.. actuators doesn’t allow the actuator to react on very short control pulses. Only control pulses of a sufficient length (ca. >50 ms for SAS31.53, SAS81.33 and SAT31..; ca. >300 ms for the remaining SAS31.. and SAS81.. types), allow for a sufficient reaction.
4.2 Modulating control The modulating positioning signal drives the actuator steplessly. The positioning signal range (DC 0...10 V / DC 4...20 mA / 0...1000 Ω) corresponds in a linear manner to the positioning range (fully closed...fully open, or 0…100 % stroke). The actuator is controlled via terminal Y or forced control Z (page 35). The desired stroke is transferred to the valve stem.
4.2.1 DIL switches Positioning signal and flow characteristic selection Positioning signal "Y" Position feedback "U" Flow characteristic ON DC 4…20 mA DC 0…10 V lin = linear DC 0…10 V DC 0…10 V log = equalpercentage OFF ON OFF 1) Note Factory setting: All DIL switches set to OFF Factory setting SAS..: · Characteristic curve : log = Equal percentage (switch at "OFF") · Positioning signal: DC 0...10 V (switch at "OFF") Factory setting SAT..
4.2.2 Position feedback U The position feedback U (DC 0...10 V) is always proportional to stroke H of the actuator’s stem. Actuator Positioning signal Y, Z Actuator Position feedback U Actuator Positioning signal Y, Z Actuator Position feedback U lin = linear log = equalpercentage Y, Z H U 4.2.
4.2.4 Signal priorities The actuators are controlled via different interlinked 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): Actuator without fail safe function Priority 1 2 3 Manual adjuster Examples Description The manual adjuster always has priority 1, thus overriding all signals active at “Z“ or “Y“, independent of whether or not power is applied.
4.2.5 Detection of valve seat SAS.. 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.
4.2.7 Forced control Z Forced control uses the following operating modes: Z mode Fully open Fully closed Overriding positioning signal “Y“ by 0…1000 Ω Transmission Connections No function Equal-percentage or linear characteristic Contact “Z“ not connected, valve follows positioning signal ”Y” SAS..
50%. The error message disappears as soon as the actuator moves. The actuator moves 35% in the direction of "Retract actuator stem" and reaches the valve seat. The internal stroke position is set to 0%. The actuator now follows the changed valve stroke position effective immediately. 4.3.2 Detection of foreign bodies The actuator detects when the valve is clogged and adjusts its operational behavior accordingly to prevent damage to itself or the valve.
After calibration is completed, the actuator follows the external setpoint, the warning is reset, the LED on the cover changes to continuous green and the cable adapter blinks green (communication active). Note Observe status indication (LED) during and after calibration (page 43). 4.3.4 Manual adjustment The actuator’s internal stroke position measurement is inactive during manual adjustment.
4.3.5 Reg. Parameters and function description Name R/W Unit Scaling Range / listing Process values 1 Setpoint RW % 0.01 0..100 2 Forced control RW -- -- 0 = Off / 1 = Open / 2 = Close 3 Actual value position R % 0.01 256 Command RW -- 3 = Stop / 4 = Min / 5 = Max 0..100 0 = Ready / 1 = Adaption / 2 = Self test 3 = Reinitialize / 4 = Remote reset Parameters 259 Op mode RW -- -- 1 = POS 260 MinPosition RW % 0.01 0..100 261 MaxPosition RW % 0.01 0..
Reg. Name R/W Value Example Device information 1281 Factory Index R Two bytes, each 00 5A à 00 “Z” coding an ASCII char.
o Min / Max (depends on Min/Max settings) o 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.
Function principle 4.4 Technical and mechanical design 4.4.1 Transmission of power Incoming positioning signals are translated 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.
4.4.4 Manual adjuster Without fail safe function With fail safe function (SA..33..) Automatic When the motor drives the manual adjuster turns. Thus in automatic mode, the manual adjuster is used for indication of travel. If the manual adjuster is held firm in this mode, there is no transmission of power to the gear train. Manual operation When pushing the manual adjuster down (1), it engages and the actuator can be manually operated.
4.4.5 Indicators A Indication of travel B Scale C Indicator D LED Status indication Position indication Operational status indication In Automatic mode, the manual adjuster serves for the indication of travel. See "Automatic" (page 42). Position indication 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.
4.4.6 Auxiliary switch ASC10.51 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. Application example: When using an auxiliary switch, position feedback can trigger an automatic stop of the circulating pump in the end position "Fully closed". 4.4.
5 Technical data SAS.. Power supply Operating voltage SA..31.. SA..61.. SA..81.. Frequency External supply line protection (EU) Function data Power consumption at 50 Hz SAS31.00 SAT31.008 SAS31.03 SAT31.51 SAS31.50 SAT61.008 SAS31.53 SAT61.51 SAS61.03 SAS61.03U SAS61.03/MO SAS61.33 SAS61.33U SAS61.53 SAS81.00 SAS81.03 SAS81.03U SAS81.33 SAS81.33U Positioning times with the specified nominal stroke SAS..0 SAT..008 SAS..3/..3U SAT..
Parallel operation Forced control Position feedback Connecting cable SAS.. SAT.. ≤ 10 (depending on controler output) R= 0…1000 Ω, G, G0 Stroke proportional to R Max. stroke 100 % Max. stroke 100 % Min. stroke 0 % Min. stroke 0 % Max. AC 24 V ± 20 % / Max. DC 24 V + 20 % / -15% ≤ 0.1 mA DC 0...10 V > 10 kΩ res. Max. 1 mA 2 2) 0.75…1.5 mm , AWG 20…16 EU: 1 entry Æ 16.4 mm (for M16) 1 entry Æ 20.5 mm (for M20) Thread length max. 9 mm US: 2 entries Æ 21.5 mm for ½“ tube connection SA..61..
SA..31.0.. 6 Connection diagrams and dimensions 6.1 Internal diagrams SA..31.5.. Accessory plug-in space A 1x ASC10.51 ASC10.51 SA..61.. 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 1x ASC10.51 AC 24 V / DC 24 V 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 1x ASC10.51 AC/DC 24 V ASC10.
SAT31.008 Accessory plug-in space A - SA..31.. (without SAT31.008) 6.2 Connection terminals 6.2.1 Actuators AC 230 V, 3-position System neutral (SN) Positioning signal (actuator’s stem extends) Positioning signal (actuator’s stem retracts) SA..31.5.. AC 230 V, 3-position System neutral (SN) Positioning signal (actuator’s stem extends) Positioning signal (actuator’s stem retracts) Fail safe function SA..61..
SAT31.008 AC 230 V, 3-position System neutral (SN) Positioning signal (actuator’s stem extends) Positioning signal (actuator’s stem retracts) System potential (SP) 6.2.2 Auxiliary switch ASC10.51 Electrical accessories Adjustable switching points, AC 24…230 V System potential (SP) Closing (actuator’s stem extends) Opening (actuator’s stem extends) 6.2.3 Cable labeling The wires are color coded and labeled. Connection Actuators AC 230V Actuators AC 24 V resp.
6.3 Warning Connection diagrams When using a safety limiter F1, ensure that there 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.. SA..31.5.. A L N N1 Y1, Y2 21 Actuator Phase Neutral Controller Positioning signals System potential SAT31.
SA..61.. SA..61.. SAS61.33 SAS61.33U SAS61.53 SAT61.51 A F1 F2 F3 F4 M N1 SN SP U Y Z SAS61../MO Actuator Temperature limiter Frost protection thermostat; terminals: 1 – 2 frost hazard / sensor is interrupted (thermostat closes with frost) 1 – 3 normal operation Temperature detector Frost protection monitor with 0…1000 Ω signal output, does NOT support QAF21.. or QAF61..
SA..81.. SA..81.. SAS81.33, SAS81.33U SAS81.0.. A Actuator F1 Temperature limiter N1 Controller SN System neutral SP System potential AC/DC 24 V Y1, Y2 Positioning signals 53 / 60 Siemens Smart Infrastructure Actuators SAS.., SAT..
6.4 Dimensions 6.4.1 Stroke actuators Stroke actuators SA.. with manual adjuster Typ SAS.. / SAT.. SAS../MO 2) With ASK39.2: A B C C1 C2 D E F [mm] [mm] [mm] [mm] [mm] [mm] [mm] [Zoll] 151 80 93 21.9 71.1 155 126 248 99 149 [mm] [mm] 1 2 M16 1) 3) M20 1) 3) [kg] 0.40 29.9 21.8 G¾ 1) SA..U: ½“ (Ø 21,5 mm) 2) Device equipped with a fixed connection cable – Left cable entry is used 3) Thread length max. 9 mm 100 200 0.55 0.
Stroke actuators SA.. without manual adjuster A B C C1 C2 D E F [mm] [mm] [mm] [mm] [mm] [mm] [mm] [Zoll] [mm] [mm] 80 106.5 21.9 84.6 29.9 21.8 G¾ 100 200 126 248 99 149 Typ 137.6 1) SAS.. 151 2) Mit ASK39.2: 155 1) Black cover 2) Blue manual adjuster 3) Thread length max. 9 mm 1 2 M16 3) M20 3) [kg] 0.68 0.83 55 / 60 Siemens Smart Infrastructure Actuators SAS.., SAT..
External Modbus Converter A6V101006034M01 6.4.2 X Type SAS../MO 1) [mm] [kg] 250 0,15 1) Already included in total weight Dimensions in mm Revision numbers 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 ..
7 Glossary 7.1 Symbols Caution, general danger – read the notes! Caution, hot surface – read the notes! Condition as supplied to costumer Crosstip screwdriver (Pozidriv) Slotted screwdriver Screw wrench Allen key 7.2 Climatix TM Terms The complete product range of flexible and scalable control solutions, standardized up to and including freely programmable solutions. Specialized for HVAC applications.
PN PN class [bar]: Characteristic relating to the combination of mechanical und dimensional properties of a component in the piping system. Position feedback Signal used to acquire the position, fed back via an input. Forced control Forced control serves for overriding automatic mode and is implemented in the structure. Δpmax / ΔpmaxV Maximum permissible differential pressure across the valve's control path, valid for the entire actuating range of the motorized valve (V = diverting mode).
Index 3-position control.............................................. 28 A/D conversion ........................................... 28, 30 About this documentation .................................. 5 Accessories ...................................................... 11 Electrical accessories ...................................... 11 Mechanical accessories ................................... 11 Anschlussklemmen Stetig ............................................................... 48 Automatic operation ..
Positioning time ............................................ 9, 29 Power consumption...................................... 9, 14 Power supply .................................................... 30 Power transmission ............................................ 8 Print ..................................................................... 8 Product description ............................................ 8 Product replacements ...................................... 11 Electrical accessories ................
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.
