Siemens OpenAir ASV181.1E/3 Technical Basics Download Page 42

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Siemens

VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3

CE1P3544en

Building Technologies

2016-02-26

Issued by
Siemens Switzerland Ltd
Building Technologies Division
International Headquarters
Gubelstrasse 22
6301 Zug
Switzerland
Tel. +41 41-724 24 24

www.siemens.com/buildingtechnologies

Technical specifications and availability subject to change without notice.

Summary of Contents for OpenAir ASV181.1E/3

Page 1: ...s Infrastructure Cities OpenAirT M VAV compact controller G B181 1E 3 VAV modular controller ASV181 1E 3 Technical Basics CE1P3544en 2016 02 26 Building Technologies ...

Page 2: ...nologies 2016 02 26 Issued by Siemens Switzerland Ltd Building Technologies Division International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel 41 41 724 24 24 www siemens com buildingtechnologies Siemens Switzerland Ltd 2011 Technical specifications and availability subject to change without notice ...

Page 3: ...l types 8 2 1 3 Version summary 9 2 2 Design and device parts 10 2 2 1 Design 10 2 2 2 Main device parts 10 2 3 Dimensions 11 2 4 Human machine interface 11 2 5 Internal diagrams 12 2 6 Measuring principle 13 3 Application 14 3 1 Fields of application 14 3 2 Equipment combinations 14 3 3 Application examples 15 3 3 1 Operating examples 15 3 3 2 Connection diagrams 16 4 Electrical and mechanical in...

Page 4: ...x control by the VAV compact controller 30 5 4 4 Master Slave operating mode 32 6 Commissioning 34 6 1 Documentation of engineering and commissioning 34 6 2 Commissioning 34 7 Safety and EMC optimization 35 7 1 Safety notes 35 7 2 Device specific regulations 36 7 3 Notes on EMC optimization 37 8 Technical data 38 9 Parameters 40 9 1 Parameter description 40 9 2 Device parameters ACS931 ACS941 AST1...

Page 5: ...vailable at www siemens com sbt 1 2 3 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 us...

Page 6: ...riginal Equipment Manufacturer 1 4 2 Naming conventions Throughout this documentation the term VAV compact controller s refers to the GDB181 1E 3 as well as to the GLB181 1E 3 and if not indicated otherwise to the ASV181 1E 3 GDB181 1E 3 and GLB181 1E 3 might be abbreviated as G B181 1E 3 to indicate that information concerns both types without distinction 1 5 Referenced documents 1 G B181 1E 3 Da...

Page 7: ...nnot be set cf section 9 2 The PC software for service ACS941 can be used for setting and reading a certain set of device parameters values set by OEM and current configuration and actual values cf section 9 2 For connecting to a PC with USB or RS232 interface an interface converter AST11 is required Datasheet N5851 Instructions B5851 Datasheet ACS941 N5854 Datasheet AST11 N5852 For information re...

Page 8: ...0 Nm GDB181 1E 3 5 Nm GDB181 1E KN 5 Nm GLB181 1E KN 10 Nm ASV181 1E 3 with 3P actuator GMA131 1E 7 Nm GCA131 1E 18 Nm ASV181 1E 3 with 3P actuator GMA136 1E 7 Nm GCA136 1E 18 Nm ASV181 1E 3 with 3P actuator GEB136 1E 15 Nm GBB136 1E 25 Nm GIB136 1E 35 Nm ASV181 1E 3 with 3P actuator GEB131 1E 15 Nm GBB131 1E 25 Nm GIB131 1E 35 Nm Bus connection Actuator 5 Nm Actuator 10 Nm Yes No No No Yes Yes No...

Page 9: ...ition optimized Service tool connection facility DIL switches replacement Digital communi cation via YC Control perfor mance optimized con mode Measuring signal U slightly attenuated DIL switches Digital communication via UC Version Series E Series D Identification Features DC 0 2 10 V 3 position control or STP control New differential pressure sensor Feedback signal selectable volume flow or damp...

Page 10: ...nics differential pressure sensor and synchronous motor for the damper actuator 2 2 2 Main device parts 2 1 3 4 7 8 9 3544J01 5 6 1 Shaft attachment screw 2 LED 3 Configuration and maintenance interface below cover 4 Connection nozzle for measuring differential pressure in the VAV box 5 Connection nozzle for measuring differential pressure in the VAV box Side with higher pressure 6 6 core connecti...

Page 11: ... 87 158 137 43 41 3 61 9 6 Measures in mm Measures in mm 2 4 Human machine interface The multicolor LED states are described below LED display Description LED dark No operating voltage LED green Faultless operation LED flashes red Connection tubes for sensor interchanged LED red Differential pressure sensor fault G B181 1E 3 ASV181 1E 3 LED state display ...

Page 12: ... G System potential AC 24 V 2 black BK G0 System neutral AC 24 V 6 violet VT Y1 Positioning signal rotation direction G0 switched dependent on the setting of direction 7 orange OG Y2 8 grey GY YC2 Air volume flow reference signal DC 0 2 10 V setpoint or communication signal 9 pink PK U Air volume flow measuring DC 0 2 10 V actual value Connecting cable 2 color coded and labeled Core designation Co...

Page 13: ...re sensor operates long term stable and without recalibration The feedback signal U can be switched between actual value of air volume flow and actual value of damper position The VAV box manufacturer OEM uses the parameter Vn to adjust the operating range of the differential pressure sensor 0 300 Pa to the actual VAV box nominal pressure pnat the factory The effect of Vn is illustrated in the dia...

Page 14: ...or environments where the air is saturated with sticky or fatty particles or contain aggressive substances In critical cases material compatibility tests should be made while giving consideration to harmful substances and concentrations 3 2 Equipment combinations 3 limited functionality for VAV compact controller Series E 4 download free of charge at www siemens com openair Application Note Device...

Page 15: ...onst 3544A13a G G0 DC 0 2 10 V G Y2 Y1 YC G0 N1 AC 24 V S1 N1 G B181 1E 3 S1 Window switch Window closed switch open AC 24 V CLB 4 3 1 2 G Y1 Y2 N1 G Y1 Y2 N3 CLA CP CP Y2 Y1 G B1 N2 G G0 G0 G0 G G0 3544A11 U1 G0 U U Y4 Y3 G U2 G0 N1 G B181 1E 3 supply air N2 G B181 1E 3 extract air N3 Room temp controller DESIGO RXC31 1 B1 DESIGO room unit e g QAX32 1 VAV Supply extract air control in operating m...

Page 16: ...0 is not used a To actuator for Heating b To slave controller c Crimping sleeve connection 4 x AMP butt joints are enclosed with the unit The operating voltage fed to terminals G and G0 must comply with the requirements for SELV or PELV Use safety isolating transformers with double insulation conforming to EN 61558 they must be suited for 100 on time Control loop without communication e g with G B...

Page 17: ... 2 6 2 7 2 9 1 1 1 6 1 7 1 8 1 Y1 G Y2 a Outputs Y11 Y22 G and G0 are not short circuit proof VAV supply or extract air control examples 3a Modulating control 3b Modulating control between max V and min V max V and min V and complete shutoff G G0 DC 0 10 V G Y2 Y1 YC G0 3544A04 N1 AC 24 V U G G0 DC 0 10 V G Y2 Y1 YC G0 3544A03 N1 AC 24 V S1 U 3c Modulating control between max V and min V and fully...

Page 18: ...mperature controller DESIGO RXC31 1 N1 G B181 1E 3 supply air N2 G B181 1E 3 extract air N3 Room temperature controller DESIGO RXC31 1 B1 DESIGO room unit e g QAX32 1 Connection diagrams 4a through 4d Connection diagram 5 Legend to connection diagram 5 G G Y2 Y1 YC G0 G0 AC 24 V N1 3544A05 U G G Y2 Y1 YC G0 G0 AC 24 V N1 3544A06 U G G Y2 Y1 YC G0 G0 AC 24 V N1 3544A07 U G G Y2 Y1 YC G0 G0 AC 24 V ...

Page 19: ...If required the angular rotation can be set by appropriate adjustment of the adjusting screw When using the connecting cable with the 6 or 7 pin plug attach the strain relief strip at the cable to the VAV compact and modular controllers as shown in the following illustration 1 2 3 4 5 AST11 1 PC with ACS931 or ACS941 2 G B181 1E 3 3 ASV181 1E 3 4 Connection to AST11 5 Strain relief strip 1 2 3 4 5...

Page 20: ...al lines table below The cables are to be sized depending on the type of VAV compact controller used and based on the following data Type Operating voltage Line Max permissible voltage drop G B181 1E 3 ASV181 1E 3 AC 24 V G0 G each 4 tot 8 The following criteria are to be considered For modulating control The permissible positioning signal error caused by the voltage drop on the G0 line must not e...

Page 21: ...gth L as per the above table and the basic diagram P is the decisive power consumption of all VAV compact controllers connected in parallel U U 2 U 2 RL RL L L U U 4614D09 M The following formulas can be used to calculate the maximum cable lengths Operating voltage Permissible voltage drop per line Formula for cable length 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 sect...

Page 22: ...ollers operating on AC 24 V Decisive for sizing the cable are only the AC currents on lines 1 G and 2 G0 Maximum permissible voltage drop 4 per line Consumption 4 x 3 VA 12 VA Line current 4 x 0 125 A 0 5 A Permissible single cable length for G and G0 164 m with a cross sectional area of 1 5 mm 2 274 m with a cross sectional area of 2 5 mm2 Example Power consumption and permissible voltage drop 1 ...

Page 23: ... factory setting ADP 7 Off Default operating mode for position display of air damper mapping 0 90 0 100 Off On Adaptive operating mode for position display of air damper mapping e g 0 60 0 100 Parameter Setting Description Siemens factory setting Elevation asl 0 5000 m Resolution 500 m Elevation asl to increase pressure sensor accuracy 500 m LED state Description LED dark No operating voltage LED ...

Page 24: ...e in VAV mode provided a DC 0 10 V or DC 2 10 V signal is fed into the input YC The setpoint signal controls the operating range min V max V Vmax Vmin Vmax Vmin 3 1 YC 0 10 V 1 Reference signal 2 Output signal 3 Control range YC 2 10 V 1 Reference signal 2 Output signal 3 Control range Using the Y1 and Y2 control signals the damper of the air volume controller can be driven either to the fully ope...

Page 25: ...ode 3P the following parameters must be set or checked Parameter Setting Description Siemens factory setting Type 3P 3P mode con n V 1 3 16 Characteristic value for nominal air volume flow set by manufacturer OEM 1 Dir r or L Opening direction of air damper r Clockwise CW L Counterclockwise CCW r In operating mode 3P min V and max V are of no relevance since air volume flow control in this mode is...

Page 26: ... following formulas Pa p Pa 300 V n n 300 Pa is the upper limit of the operating range of the differential pressure sensor The nominal pressure is the differential pressure in the VAV box at the given nominal volume flow determined by the OEM specification cf also section 2 6 h 3 m h 3 m 100 flow volume nom flow volume min Vmin h 3 m h 3 m 100 flow volume nom flow volume max Vmax V 100 V V Setpoin...

Page 27: ...to set or to display the parameters as listed in section 9 2 The software supports trend functions and allows comparing the values set by the OEM with the values currently stored in the device Thus manipulations by parties other than the OEM can be detected Next to the PC software ACS941 an OEM version ACS931 7 with extended functionality is available as well ACS931 allows setting the parameter Vn...

Page 28: ...air controller master V Volume flow of supply air controller Master slave V Volume flow of extract air controller Slave 5 4 2 Min max control by the supervisory controller When setting the minimum maximum air volume flow in the supervisory controller the VAV compact controller has to be configured with min V 0 and max V 100 VAV ratio control 1 1 Supply air Extract air min V max V min V max V Super...

Page 29: ...al Ysupply_air 35 Yextract_air Ysupply_air 20 15 Result Vsupply_air 35 Vextract_air 15 min V max V V min V max V V supply_ air V r extract_ ai V VAV ratio control 20 constant excess extract air volume flow negative pressure in the room Supply air Extract air min V max V min V max V Supervisory controller 20 80 40 100 VAV compact controller 0 100 0 100 Reference signal Ysupply_air 35 Yextract_air Y...

Page 30: ...nd Vmax 100 With this setting the supervisory controller reference signal for both the supply air and extract air controller is the same Thus supply air extract air control with a single reference signal is possible VAV ratio control 1 1 Supply air Extract air min V max V min V max V Supervisory controller 0 100 0 100 VAV compact controller 20 80 20 80 Reference signal Ysupply_air Yextract_air 25 ...

Page 31: ...min V max V V supply_ air V r extract_ ai V VAV ratio control 20 constant excess extract air volume flow negative pressure in the room Supply air Extract air min V max V min V max V Supervisory controller 0 100 0 100 VAV compact controller 20 80 40 100 Reference signal Ysupply_air Yextract_air 25 Result Vsupply_air 35 Vsupply_air 55 100 min V max V 100 80 60 40 20 20 0 40 60 80 0 100 60 40 120 Ref...

Page 32: ... slave operating mode the actual value signal of the master controller supply air is the reference signal for the slave controller extract air VAV ratio control 1 1 Supply air Master Extract air Slave min V max V min V max V Supervisory controller 0 100 0 100 VAV compact controller 20 80 0 100 Reference signal Ymaster 25 Result Vmaster Vslave 35 min V max V V min V max V V master V slave V Setting...

Page 33: ...00 0 100 VAV compact controller 20 80 20 80 Reference signal Ymaster 25 Result Vmaster 35 Vslave 15 min V max V V min V max V V master V slave V VAV ratio control 20 constant excess extract air volume flow negative pressure in the room Supply air Master Extract air Slave min V max V min V max V Supervisory controller 0 100 0 100 VAV compact controller 20 80 20 120 Reference signal Ymaster 25 Resul...

Page 34: ...ure that the tubes for measuring the differential pressure are correctly connected To check the setting values of Vn max V min V the operating mode con 3P or STP and the actuator s opening direction counterclockwise or clockwise the AST10 setting unit or ACS941 software with AST11 interface converter is required If digital setpoints or control command on stop off are predefined via AST10 or ACS941...

Page 35: ...ntractor in charge Third party regulations issued by general contractors or building operators The electrical safety of building automation and control systems supplied by Siemens depends primarily on the use of extra low voltage with safe isolation from mains voltage Depending on the type of extra low voltage earthing a distinction is to be made between SELV and PELV as per HD 384 Electrical plan...

Page 36: ...load The transformer s nominal capacity must be at least 25 VA With smaller transformers the ratio of no load voltage and full load voltage becomes unfavorable 20 Fusing of AC 24 V operating voltage Secondary side of transformer According to the effective load of all connected devices Line G system potential must always be fused Where required line G0 system neutral also 7 2 Device specific regula...

Page 37: ...e emitting cables from other cables by a minimum of 150 mm or route in separate ducting Cross high interference cables with equipment susceptible to interference only at right angles If in exceptional cases signal and interference emitting power cables are run in parallel the risk of interference is high In that case limit the cable length of the DC 0 2 10 V positioning signal line for modulating ...

Page 38: ...4 mm Series E or later 7 pin grid 2 00 mm Power communication cable Connection cable Cable length 0 9 m G B181 1E 3 ASV181 1E 3 Number of cores and cross sectional area 6 x 0 75 mm 2 Actuator control cable Cable length 0 3 m ASV181 1E 3 Number of cores and cross sectional area 4 x 0 75 mm 2 Degree of protection and safety class Degree of protection acc to EN 60529 cf mounting instructions M3544 M3...

Page 39: ...olution 1 factory setting 0 20 100 mid V adjustable resolution 1 factory setting 50 0 100 n V adjustable resolution 0 01 factory setting 1 00 1 3 16 n V 1 300 Pa at nominal air volume flow n V 3 16 30 Pa at nominal air volume flow Differential pressure sensor Connection tubes interior diameter 3 8 mm Measuring range 0 500 Pa Operating range 0 300 Pa Precision at 23 C 966 mbar and optional mounting...

Page 40: ... air damper Clockwise CW or counterclockwise CCW Adaptive positioning This function is intended for VAV boxes with a damper opening range other than 0 90 If set to On adaptive positioning enabled the actuator determines the actual opening angle during start up The actual range e g 15 75 is then mapped to the 0 100 positioning signal If set to Off 0 100 is interpreted as 0 90 Vn Characteristic valu...

Page 41: ...aste this applies particularly to the printed circuit boards See also European Directive 2012 19 EU As a rule dispose of all waste in an environmentally compatible manner and in accordance with the latest developments in environmental recycling and disposal techniques Local and currently valid legislation must be observed The aim is to achieve maximum recyclability of the basic materials while ens...

Page 42: ...nologies 2016 02 26 Issued by Siemens Switzerland Ltd Building Technologies Division International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel 41 41 724 24 24 www siemens com buildingtechnologies Siemens Switzerland Ltd 2011 Technical specifications and availability subject to change without notice ...

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