VAV compact controllers PDS 52.150

ASV115

en Product Data Sheet

ASV115: VAV compact controller for laboratory and pharmaceutical applications How energy efficiency is improved Provides demand-led control of the air volume to optimise energy consumption in ventilation systems. Differential pressures up to 1 Pa can be controlled, providing very small volume flows with extremely low duct pressures and energy consumption. Areas of application Controlling the exhaust air from fume cupboards, and controlling supply and exhaust air in laboratories, clean rooms, wards or operating theatres in conjunction with a volume flow box. Features • Static differential pressure recording based on the capacitive method of measurement • Can be used in areas with dirty or contaminated exhaust air • High-precision measurement of differential pressures with ranges of up to 300 Pa • Calibrated version available for pharmaceutical applications • Variable running times from 3 to 15 s for fast control loops • Brushless DC motor provides the lowest possible energy consumption and a long service life • Electronic/mechanical torque cut-off for safe operation • Extremely simple installation due to self-centring shaft adaptor • Transmission can be disengaged for manual adjustment and positioning of the damper • Power cable 0.5 m long, 10 × 0.32 mm², fixed to housing • Integrated second controller for:  Room-pressure control: can be ideally combined with EGP100 with symmetrical measuring range  Room-temperature control: can be ideally combined with SAUTER Ni1000 sensor and AXS215S continuous valve actuator • RS-485 bus interface for up to 31 subscribers in a segment and SLC (SAUTER Local Communication) protocol • Extremely easy to parameterise using the SAUTER CASE VAV software Technical description • Supply voltage 24 V~/= • Variable end values for the measuring range for differential pressure:  50…150 Pa  100…300 Pa • Efficient control algorithm for fast control loops • Output signal 0…10 V for:  Volume flow, actual value rqV  Volume flow, control deviation –eqV.s for signalling at fume cupboard  Positioning signal y1) for the continuous control of the valve actuator • Input signal 0…10 V for:  Command variable cqV.s or room-temperature setpoint cT.s 1)  Setpoint shift cqV.p ad (∆ ) or actual value of room pressure rP1)  Input signal Ni1000 for actual value of temperature rT1) • Priority control via switch contacts • Zero point with calibration facility Products Type

Torque

Holding torque 1)

Power

(Nm)

Measuring range ∆p (gain=1) (Pa)

(Nm)

ASV115CF152D ASV115CF152E

Weight

10

2

0…150

24 V~/=

0.8

10

2

0…300

24 V~/=

0.8

ASV115CF152I

10

2

0…150

24 V~/=

0.8

ASV115CF152K

10

2

0…300

24 V~/=

0.8

(kg)

Version with standard cable

Version with halogen-free cable

1) Available with ASV115CF152 from hardware index E

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ASV115 Technical data Electrical supply Power supply

24 V~ ± 20%, 50…60 Hz 24 V= 2) ± 20%

Power consumption During operation at 10 Nm Stationary 3) Integrated damper drive Run time for 90° rotation angle Angle of rotation Permitted size of damper shaft

ca. 15 VA ca. 4.5 VA

Permitted hardness of damper shaft Resistance to transient voltages Operational noise

3…15 s 4) 90° 5) Ø 8…16 mm  6.5…12.7 mm max. 300 HV 500 V (EN 60730) < 49 dB(A) at 3 s

∆p sensor Measurement range ∆p (gain = 1) Pressure range Type D & I/E & K Non-linearity Time constant Influence of position Reproducibility Zero point stability at 20 C Permitted positive pressure Permitted operating pressure pstat Air connection

0…150/300 Pa 2% FS 0.05 s ± 1 Pa 0.2% FS 0.2% FS ± 10 kPa ± 3 kPa 6) Ø i = 3.5...6 mm 7)

Inputs Analogue AI01 Analogue AI02 8) Ni1000 9)

0…10 V (Ri = 100 kΩ) 0…10 V (Ri = 100 kΩ) Measuring range 0....50 °C Resolution 0.2 °C closed 0.5 V~, 1 mA open > 2 V~ closed 0.5 V~, 1 mA open > 2 V~

Digital DI04 10) Digital DI05 10)

Outputs Analogue AO03 Analogue AO02 8)

Interfaces, communication RS-485 (not galvanically isolated) Protocol Access method Topology Number of subscribers Cable length without bus termination with bus termination Cable type Bus termination Permitted ambient conditions Operating temperature Storage and transport temperature Humidity

Installation Weight (kg)

115 kBaud SAUTER Local Communication (SLC) Master/Slave Line 31/32 11) up to 100 m, Ø 0.5 mm up to 500 m, Ø 0.5 mm twisted pair 12) > 200 m, 120 Ω both sides

0…55 °C –20…55 °C < 85% rh no condensation

0.8

Standards, guidelines and directives Degree of protection (horizontal) IP 30 (EN 60529) Protection class III (EN 60730) Degree of contamination 2 (EN 60730) Additional information Fitting instructions Manual CASE VAV Material declaration

MV 506011 HB 7010022001 MD 52.150

Dimension drawing Wiring diagram

M10457 A10519

0…10 V load > 10 kΩ 0…10 V load > 10 kΩ

Technical data (continued) 1) Currentless holding torque by means of interlocking in transmission 2) Unconnected analogue inputs are valued at 0 V. The nominal torque is attained within the given tolerances. AI/AO can be used only as an input. 3) Holding torque approx. 5 Nm 4) Run time adjustable via software 5) Maximum angle of rotation 95° (without end stop) 6) Short-term overload; sensor recalibration recommended 7) Recommended hose hardness < 40 Sh A (e.g. silicone) 8) Input jack 02 is configurable as an analogue input or analogue output using SAUTER CASE VAV software 9) Using the SAUTER CASE VAV software from version 2.0, connection 04 can be parametrised as an Ni1000 input (for ASV115CF152 from hardware index E) 10) Digital inputs for external potential-free contacts (gold-plated recommended) 11) The parametering tool is always one of the subscribers, so a maximum of 31 devices can be linked 12) Recommended: Belden 3106A

Accessories Type

Description

0520450010*

CASE VAV – USB-connecting kit, incl. software

CERTIFICAT001 Manufacturer's test certificate type M including ∆p sensor calibration data 0372300001

Torsion protection, long (230 mm)

0372301001

Shaft adaptor for square (× 15 mm) hollow profile (pack of 10)

XAFP100F001*

Flow probe for measuring the air flow in ventilation ducts

*) Dimension drawing or wiring diagram is available under the same number

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ASV115 General functional description The differential pressure created on an orifice plate or a dynamic pressure sensor is recorded by a static differential pressure sensor and is converted into a flow-linear signal. An external command signal cqV.s is limited by the parameterised minimum and maximum settings, and is compared with the actual volume flow rqV. Based on the control deviation that is determined, the damper on the volume flow box is adjusted by the drive until the required volume flow is attained over the measurement point. Without an external command signal, the value specified in the parameterisation for min corresponds to command variable cqV.s (factory setting). Configuration of the application and the internal parameters is softwarebased, using SAUTER CASE VAV PC software. The software supports the application-specific configuration of the compact controller and the setting of the necessary parameters in bus mode. The VAV Compact is supplied ex factory in a standard configuration. For this purpose, the inputs and outputs are preconfigured as shown in the table.

Connections (factory setting) Connection 01

Colour coding Red

2

Black

03

Grey

04

Violet

05

White

Function External command variable CqV.s 0…10 V ≡ 0…100% nom Setpoint shift CqVpad (∆ ) 5 V ± 5 V ≡ ± 15% Actual value rqV 0…10 V ≡ 0…100% nom Priority control min (operated/activated condition) Priority control max (operated/activated condition)

For configuration purposes, the design data for the volume flow box must be loaded into the drive via SAUTER CASE VAV Software. The following data are required for this purpose as a minimum: Air volumes DN Box Unit

Mm

C Factor n AT Box l/s – m3/h l/s - m3/h

nom

max

min

l/s - m3/h

l/s - m3/h

l/s - m3/h

Abbreviations/symbols n n effectiv max min var

VAV cw rqV

Nominal volume flow Effective nominal volume flow Maximum volume flow Minimum volume flow Continuous volume flow, e.g. corresponding to command variable 0…10 V Variable volume flow Clockwise Actual value as per IEC 60050-351 (formerly) Xi)

n AT nom mid int

∆p

-eqV.s cqV.p.2

cT.s

Command signal shift as per IEC 60050-351 (formerly ∆ ) Command signal as per IEC 60050-351 through switching contact 1 (DI04) Room-temperature setpoint

rT

Constant volume flow Counter-clockwise Command signal of the VAV controller as per IEC 60050-351 (formerly Xs) Control deviation for volume flow as per IEC 60050-351 Command signal of the VAV controller as per IEC 60050-351 through switching contact 2 (DI05) Actual value of room temperature

y

Positioning signal of the valve actuator

rP

Actual value of room pressure

cP

Room-pressure setpoint

cP.p.2

Room-pressure setpoint set by contacts 2 (DI05)

FS

Full scale

Factory setting

Cooling

Heating

cqV.p.ad cqV.p.1

CAV ccw cqV.s

Nominal volume flow for air terminal nominal in plant Volume flow between max and min Internal volume flow Differential pressure on the sensor (in Pa)

c/o

Change-over

DN

Nominal diameter

p s q

Index "p" for priority Index "s" for second priority Index "q" for quantity

ad P T V

Index "ad" for additive Index "P" for room pressure Index "T" for temperature Index "V" for volume flow

Adjustment of operating volume flows The following functions are generally available to operate the air volume controller. Setting ranges Function Damper closed min max mid

Damper open nom int

Volume flow Damper completely closed Minimum Maximum Intermediate setting Damper completely open Nominal volume flow Internal setpoint

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Maximum setting ranges … … max > 1Pa 1Pa

1Pa

…

max nom mid

>

nom

min

Recommended setting ranges 0° damper position 10…100% max 10…100% nom 10…100% max 90° damper position Specific value, dependant on box type, air density and application 10…100% nom

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ASV115 Using the ASV115CF152 The following sections describe the applications for which the ASV115CF152 can be used. Detailed information on how to set the parameters for the various applications can be found in manual 7010022001.

Seepage suppression In order to avert unstable control behaviour in the min range, socalled 'seepages' are suppressed automatically. This suppression causes the damper to close if command variable (cqV.s) ≤ 6% of the set nominal volume flow.

Air volume control

Control operation recommences when the command variable (cqV.s) ≥ 7.8% of the nominal volume flow. Functional diagram cqV.s

Vmax

max)

min

and

Vmin

0

100% V

0 0

10V

5 cqV.s

Feedback of differential pressure for damper position and actual value for air volume Three measured variables are generally available as feedback from the volume flow control loop via the SLC bus: damper position, air volume and operating pressure. These values can be read with SAUTER CASE VAV software in the Online Monitoring mode. Online monitoring Damper position

° angle of rotation

0…100% available angle of rotation 0…100% nom

max

Vmin

   m3    Vmin      h   (%) = *100%    m3     Vnom      h  

Vmax

   m3   Vmax      h   (%) = * 100%    m3   Vnom       h   V 100%

5

of the

The min and max values, which should be parameterised using software, limit command signal cqV.s both downwards and upwards. The values to be set for min and max are entered as percentages or absolute values. When the absolute values are entered, the volume flow values (in %) that are specific to that particular installation are calculated using the equation below. Without an external command signal, the set min value becomes the setpoint. The overriding of the volume flow setpoint at analogue input 01 is effected via digital inputs. Calculation of

rqV

The volume flow deviations are corrected by the volume flow controller, and the damper is adjusted until the control deviation is within the neutral zone of the volume flow controller. The actual value for air volume and the control deviation can be transferred via two analogue outputs. Minimum and maximum volume flow ( min and volume flow controller's command signal (AI01)

Vnom

10V

B11694

The actual value for air volume is mapped by the square-root transducer integrated into the ASV115. The volume flow setpoint is issued by the command signal at analogue input 01. Constant volume flow setpoints can be issued via the priority control to digital inputs 04 and 05, and they have priority over the volume flow setpoint at analogue input 01.

Volume flow actual m³/h value Operating pressure Pa

0…100% Pnom

Actual value for air volume (AO03) In addition, the current volume flow (actual value rqV) over the volume flow box is measured at terminal AO03. The value corresponds to 0…100% of the set nominal volume flow nom. If no specific plant volume flow is entered, nom corresponds to the value nAT set by the box manufacturer, which can generally be located on the nameplate of the volume flow box. Functional diagram for rqV

Vnom

10V

Vnom

Vmin

0

10V

cqV.s

B11691

0

0

Command signal of the volume flow controller cqV.s can be configured in various modes via the software. Ranges 0…10 V, 2…10 V and free configurable are available. The set range refers to the range 0…100% nom. Parameterisable forced operations can still be performed via the analogue input (AI01). See the relevant section in the CASE VAV parameterisation manual 701022001.

0

V

100%

B11693

rqV

V max

The actual value signal and the command signal always relate to the set volume flow nom. Engineering note: important, actual value signals from 2 or more controllers must not be connected together. The actual value signal for the volume flow is generally used for the following functions: • To display the volume flow on the Building Management System (BMS), room air balancing in the laboratory. • Master-slave application; the actual value signal from the master controller is specified as the setpoint for the slave controller.

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ASV115 For more information on setting the actual value for air volume, see the CASE VAV parameterisation manual 701022001. Volume flow shift ∆ (AI02) If it is desirable to have a difference between two air volumes, e.g. between supply and exhaust air, it is possible to have a parallel volume flow shift by a set value ∆ . This function is still used for shifting the volume flow in room pressure control. Since the command signal cqV.s always refers to the nominal air volume nom it makes sense to put nom to the value of max. This ensures that max is always 100% air volume. If max is identical to the exhaust air in percentage terms and with regard to the amount of supply air, optimum synchronicity of the air volumes is achieved. Functional diagram for ∆ V Vnom

100% V max + ∆V

- ∆V

0 0

cqV.s

10V

B11695

Vmin

• •

Start value: End value:

0 V (–50%) 10 V (+50%)

Note: Half slope (–100%...100%, 0.05V/% in comparison to 0.1 V/%) results in a double neutral zone (= green range ≡ no alarm) in the notification. Digital inputs (DI04 and DI05) Priority controls are implemented via the available digital inputs. It is simple to select individual functions by means of software. The digital inputs can be operated with normally closed contacts or normally open contacts. Mixed use of normally closed and normally open contacts is also possible. The parameters for these are set using the SAUTER CASE VAV software. For more information on priority control via digital inputs and their factory settings, see the relevant section of the CASE VAV parameterisation manual 701022001.

Room-temperature control

The following parameters can be set using the SAUTER CASE VAV software: • Shift factor The setpoint shift factor is the amplification factor to define the shift influence. In normal cases, it should be selected so that the shift influence is ≤ 20% nom. The following also applies:  

When a fume cupboard control panel FCCP100 is connected, the output must be parameterised for a freely configurable characteristic with the following values.

Value = 0: shift is inactive Value ≠ 0: shift is active

• Shift limitation The limitation is defined as a percentage of the volume flow. The highest and lowest permitted values may be entered here. With a parallel shift of the volume flow value, the set min and max values can be overridden. Downward limitation of the air flow is implemented by seepage suppression, and upward limitation is defined by the maximum possible plant volume flow (damper fully open). For calculating and setting the parallel setpoint shift, see the relevant section of the CASE VAV parameterisation manual 701022001. Volume flow control deviation –e (AO02) Output AO02 may be used for alarm purposes if the volume flow deviates from command variable cqV.s. The current control deviation in volts can be measured here. If the setpoint equals the actual value, the output has a value of 5 V. If the actual value is below the setpoint, the output is set to less than 5 V, depending on the deviation. If the actual value is higher than the setpoint, a value greater than 5 V is shown at the output.

With a second controller in the ASV115, room-temperature control can be performed by the VAV compact controller. In so doing, the actual temperature value is fed by an Ni1000 sensor to terminal 04 of the ASV115. The temperature setpoint can be set externally to analogue input 01. If no external signal is fed in, the internally-set temperature setpoint (cTDefault) is activated. The temperature controller integrated into the ASV115 can be parameterised specifically for the application: • Cooling by increasing the volume of air (VAV sequence) • Heating via re-heater or radiator and cooling by increasing the volume of air (VAV heating sequence) • Cooling by increasing the volume of air and via re-cooler (VAV cooling sequence) For applications with re-heaters and re-coolers, a continuous valve actuator is activated via analogue output 02. Room-temperature control can be overridden via the priority control on DI05. In so doing, a defined volume flow setpoint, a damper position or the valve actuator position (open or closed) can be specified. Temperature setpoint (AI01) The temperature setpoint characteristic can be set via CASE VAV. Ranges 0…10 V, 2…10 V and 'freely configurable' are available for the input voltage. The default temperature setpoint range is 0…50°C, but it can be adjusted via CASE VAV with the 'freely configurable' option. Functional diagram for temperature setpoint cT.s

Functional diagram for volume flow control deviation -eqV.s -eqV.s 10V

rqV < cqV.s

0 rqV = cqV.s

r-c rqV > cqV.s

B11697

5

Actual temperature value (Ni1000) The temperature is measured by an Ni1000 sensor connected to terminal 04. The measuring range of the temperature input is www.sauter-controls.com

0…50°C. For more information on setting the temperature setpoint and actual value signals, as well as the application-specific control

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ASV115 parameters, see 0701022001.

the

CASE

VAV

parameterisation

manual

Valve actuator positioning signal (AO02) A continuous valve actuator can be activated via analogue output 02. The output signal relates to the corresponding sequence of the temperature controller and can be configured freely or as a 0…10 V, 2…10 V signal. Due to the freely-configurable characteristic of the positioning signal, the direction of operation and the input range of the valve actuator can be taken into account. For more information on setting the valve actuator positioning signal, see the CASE VAV parameterisation manual 701022001. Note This function is available only with a power supply of 24 VAC. Functional diagram for positioning signal of valve actuator y

Room-pressure control With a second control loop in the ASV115, the room-temperature control can be performed by the VAV compact controller. The room pressure measured by a differential pressure sensor with a symmetrical measuring range is fed to analogue input 02 of the ASV115. Functional diagram for room pressure actual value rP.

Note The place of installation for the ASV115 with integrated roompressure controller must be considered when assigning the application in CASE VAV. Reason: the direction of operation of the integrated room-pressure controller differs depending on the place of installation of the ASV115 (return air or supply air). If the ASV115 with integrated room-pressure controller is installed on the return air, the roompressure controller has direction of operation A (if the roompressure control deviation increases, the volume flow setpoint shift increases). If the ASV115 with integrated room-pressure controller is installed on the supply air, the room-pressure controller has direction of operation B (if the room-pressure control deviation increases, the volume flow setpoint shift decreases). For more information on setting the room-pressure control loop, as well as the application-specific control parameters, see the CASE VAV parameterisation manual 0701022001. Sensor technology The measuring sensor used in the VAV controller is a static doublemembrane sensor manufactured using PCB technology. Thanks to its symmetrical structure with two measuring cells which are (in principle) independent, the sensor is position-compensated and can, therefore, be operated in any fitted position. The differential pressure is evaluated using a differential capacitance measurement method. The unique design ensures highly accurate measurement at differential pressures of up to < 1 Pa, allowing precise control of volume flow at a differential pressure of 1 Pa. This enables users to set low min values for reduced mode in order to save energy. Thanks to the principle of using a static measuring method, the sensor can also be used to measure pumped media which contain dust or are contaminated with chemicals. Block diagram of sensor

Bus

The actual value of the room pressure is compared with the differential pressure setpoint internally set in the ASV115 in order to map the room pressure control deviation. The volume flow setpoint is adjusted until the room pressure setpoint is reached. The limitation of the volume flow setpoint shift should be set using the CASE VAV software. Two room-pressure setpoints can be set in the ASV115. The change-over between the two room-pressure setpoints is performed via digital input 05.

B10418

F

The SAUTER CASE VAV software enables zeroing and setting of damping factors by the user as required. Sensor structure Pp

Ap Ac An

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GND

B11563

Pn

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ASV115 Legend Pp Pn Ac Ap An GND

Connection for higher pressure Connection for lower pressure Common pole flange of the differential capacitor Positive pole flange Negative pole flange Earth (ground)

In order to stabilise the sensor's measurement signal in case of severely fluctuating pressure signals, the SAUTER CASE VAV software can be used to set the filter time constant τ continuously in a range from 0 to 5.22 s. Zero can be reset as required by using the zeroing function. Power supply connection The drive can be operated with 24 V d.c. or a.c. according to choice. Automatic connection recognition is available only in a.c. mode. In d.c. mode, the full nominal torque of 10 Nm is available within the specified tolerances. When the controller is operated with 24 V d.c., the following function differs from a.c. operation, in relation to analogue inputs AI01 and AI02:

Connection ParaCircuit meterised connection function AI 01 Standard NC 1) AI/AO 02

AO

Engineering and fitting notes The drive can be fitted in any position (including upside down). It is placed directly on the damper shaft and clipped to the anti-torque device. The self-centring shaft adaptor ensures gentle operation of the damper shaft. The damper drive can be easily removed from the damper shaft without dismantling the anti-torque device. The angle of rotation can be limited between 0° and 90° on the device and can be set continuously between 5° and 80°. The limitation is set with a set-screw directly on the drive, and with the limit stop on the self-centring shaft adaptor. This shaft adaptor is suitable for damper shafts Ø 8...16 mm,  6.5...12.7 mm. Note: The housing should not be opened.

Functions for 24 V d.c.

AI

• Storage of device configuration for presetting or back-up purposes • Configurable units range • Overview page for rapid entry of the main parameters • Tree view for fast navigation through the individual configuration pages • Integrated access to plant schematic and wiring diagram • Print-out of device configuration • Service functions for fast troubleshooting • Structured user guidance • Online monitoring of most important operation parameters

NC

Function range 0…10 V Vvar 2)

Function Function range freely con2…10 V figurable Damper closed 3)

Input range of end value not available

1) NC, not connected 2) It is recommended to put the setting for forced operation for LOW voltage additionally to Vvar. 3) Connection is recognised as LOW voltage and, accordingly, the factory setting for forced operation is performed; other parameters provide different behaviour.

After applying power, the working range of the damper drive is determined automatically. For this purpose, the drive approaches both limit stops and specifies the possible angle of rotation (factory setting). The initialisation procedure in the event of a power failure can be disabled by setting a parameter in the SAUTER CASE VAV software tool. RS-485 / SLC interface function The VAV compact controller is fitted with an RS-485 interface which is not galvanically isolated. The baud rate used is 115.2 kbps, which is a fixed setting. The SAUTER Local Communication protocol (SLC) that is used specifies the master-slave bus access procedure, with a maximum of 31 devices permitted in one network segment. The SAUTER CASE VAV software is used to parameterise each individual device and to configure the devices within the network segment. Physical access to the bus system is gained either via the connection in the housing cover or via three separate leads at the end of the cable. CASE VAV function The SAUTER CASE VAV software is available to parameterise the volume flow controller. This software tool enables you to configure all the values required for operation via a comfortable user interface. The connection is made via a USB interface on the PC (laptop) and via the jack on the drive, or via the RS-485 leads on the drive cable. The drive parameterisation set comprises: software, including installation and operating instructions, fitting instructions, connection plug, connection cable (length 1.2 m) and an interface converter for the PC. The software is intended for use by OEM manufacturers, commissioning and service technicians and experienced operators. The following functions are available:

For feedback of the operating status, it is advisable to display the actual value signal (volume flow) in the management systems. No account has been taken of special standards such as IEC/EN 61508, IEC/EN 61511, IEC/EN 61131-1 and -2. Local regulations on installation, application, access, access authorisations, accident prevention, safety, dismantling and disposal must be observed. Compliance is also required with installation standards EN 50178, 50310, 50110, 50274, 61140 and similar. The RS-485 parameterisation interface in the housing cover is not suitable for continuous operation. After parameterisation has been completed, the parameterising plug must be removed again and the opening should be sealed with the plug to restore the IP protection type. Open-air installation We recommend that devices are given additional protection against the effects of weather if installed outside of buildings. Wiring Power supply To ensure fault-free operation, the following line cross-sections and cable lengths must be respected for the 24 V power supply and the earth connection. All devices within a network segment must be supplied by the same transformer. The power supply should be wired in star formation, observing the max. cable length in accordance with the table below (see column 1: 1 Device). Maximum cable lengths (in m) for various numbers of devices Core crosssection 0.32 mm² 0.5 mm² 0.75 mm² 1.00 mm² 1.50 mm²

1 device* max. 8 devices

max. 16 devices

max. 24 devices

max. 32 devices

25 40 60 80 120

1.6 2.5 3.8 5.0 7.5

1.0 1.7 2.5 3.3 5.0

0.8 1.3 1.9 2.5 3.8

*) Star wiring recommended.

3.1 5.0 7.5 10.0 15.0

• Very simple parameterisation of complex applications www.sauter-controls.com

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ASV115 Analogue signals Analogue and digital signals are connected via the connection cable. To ensure perfect operation, the earth cable for drives that are interconnected in order to exchange signals must be on the same potential.

Wiring diagram (Ni1000) Non-admissible wiring

The maximum cable length for analogue signals is mainly dependent on the voltage drop on the earth cable. A signal cable with a resistance of 100 Ω results in a 10 mV voltage drop with an ASV115 connected. If ten ASV115s are connected to this cable in series, the resultant voltage drop is 100 mV or an error of 1%. Ni1000 sensor The earth of the Ni1000 sensor must be connected directly to the earth terminal (MM) of the ASV115. The earth of the Ni1000 sensor must not be connected directly to the earth of the power supply. In the case of a two-conductor system, the maximum admissible conductor resistance between the sensor and the Ni1000 input of the ASV115 for two conductors is a total of 5 Ω.

Admissible wiring

SLC bus connection The integrated SLC bus is physically specified as an RS-485 interface. Depending on the line length, up to 31 devices can be connected within one network segment. The C08 terminals of all the controllers should be linked together and have the same potential. Neither special cables nor terminating resistors are required for wiring < 200 m. The wiring should have a purely line topology (daisy chain). Stub cables are not permitted. However, if, for installation reasons, they are unavoidable, they should be limited to a maximum of 3 metres.

Wiring diagram (SLC bus connection)

The length of the bus cable is limited by the following parameters: • Number of devices connected • Cable cross-section The following table is applicable for twisted pair cabling: 8/15

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ASV115 Twisted pair cabling Core cross-section 0.20 mm² 0.20 mm²

It is not permitted to connect the drives mechanically in parallel.

Number of devices 31 31

Maximum cable length

Unused connections should be insulated; they should not be wired to earth.

< 200 m 200…500 m with bus termination

Note: The bus connections react sensitively to excess voltage and are unprotected with respect to the power supply. If incorrectly wired up, the device may incur damage.

If shielded cables are used, the shielding must be earthed in accordance with the main source of interference in the installation: • Single-earthed shielding is suitable as a protection against electric interference (e.g. from high-tension lines, static charges etc.) • Double-earthed shielding is suitable as a protection against electromagnetic interference (e.g. from frequency converters, electric motors, coils etc.) It is advisable to use twisted pairs.

CE conformity EMC Directive 2004/108/EC EN 61000-6-1 EN 61000-6-2 EN 61000-6-3 EN 61000-6-4 Machine directive 2006/42/EG, appendix II 1.B

Additional technical information The upper section of the housing with the lid and the lid-release button contains the electronics and the sensor. The lower section of the housing contains the brushless DC motor, the maintenance-free transmission, the lever to disengage the transmission and the shaft adaptor. Dimension drawing (factory setting)

63 24,5

43,5

53,7

Accessory 0520450010

133

87

46

M10457

27

70

12

23,5

46,5

13,5

137,5

1.2 m

1.2 m

1.5 m

42 × 67 × 25 (mm)

Accessory XAFP100F001 QV

–

30 40

+

30…32 40 55 65 396

M11433

380

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ASV115 Block diagram (factory settings)

MM

VAV controller

-

+

first priority reference variable generator

LS

+

-eqV.s -

second priority reference variable generator

logic

D

second priority command switch

D

A

cqV.p.ad

A

-eqV.s

BUS controller

M

RS-485

cqV.s

B11707

AI/AO 02

DI 05

AI 01

MM

C D+ D-

cqV.p.1

rqV

A

DI 04

+

D

AO 03

P

dp

dp-Sensor

first priority command switch

E

+

24V

MM

Wiring diagram

BU

BN

RD

BK

Blau

Braun

Rot

Blue

Brown

Bleu

Brun

GY

VT

WH

OG

PK

YE

GN

Schwarz Grau

Violett

Weiss

Orange

Rosa

Gelb

Grün

Red

Black

Grey

Violet

White

Orange

Pink

Yellow

Green

Rouge

Noir

Gris

Violet

Blanc

Orange

Rose

Jaune

Vert

Application examples Example 1: VAV (master-master) Variable air volume control with supply- and exhaust-air controller in master–master configuration, commanded by a room temperature controller for rooms with high comfort and control requirements. With the master–master configuration, supply- and exhaust-air controllers (1) are controlled in parallel by a common command signal from a room temperature controller (2) as standard. The command signal shifts the parameterised volume flow values in the range from min to max. With the same setting for these operating volume flows, i.e. if the parameterised values on the supply- and exhaust-air controllers correspond to identical volume flows, there is a parallel shift of the volume flows with constant (balanced) room

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pressure. If the min and max values on the supply air and exhaust air sides are parameterised differently, a defined negative pressure or positive pressure can be achieved in the room. • Room positive pressure setting = • Room negative pressure setting =

supply

≥ ≤

supply

exhaust exhaust

For priority control, the digital inputs on the supply air and exhaust air controllers are activated in parallel via switching contacts. The desired parameters for min, max and mid are set using software. This method of operation is also suitable for constant air volume control, and this function, too, is implemented by a constant command signal at the setpoint input.

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ASV115 Schematic (Example 1) 3

Master

+ -

3

1

Master

∆p

M

EY-modulo

+ -

1

∆p

T

2

M

4

PI EY-modulo

B11701

4

cqV.s

Legend 1

VAV compact controller, ASV115CF152

2

Room temperature controller

3

VAV box

4

Building management system (BMS): night set-back mode/volume flow actual value

Control diagram supply

=

exhaust

Master

Master

Supply air

Exhaust air Vnom

5

rqV

rqV

5

Vmin 0 0

5

100%

V

10V

c qV.s

0

0 0

100% 5

10V

V

0

c qV.s B11698

Vmin

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10V

Vmax

V max

Setpoint

Vnom

10V

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ASV115 Example 2: VAV with integrated room-temperature control (master-slave) Room-temperature control with variable air volume control with supply- and exhaust-air controller in master–slave configuration for rooms with high comfort and control requirements. The master– slave configuration allows an equal-percentage ratio between the supply- and exhaust-air volumes. Room-temperature control is performed directly in the master controller. The temperature sensor is connected to the master controller. An external signal provides the master controller with the roomtemperature setpoint from either the BMS or a room operating unit. The volume flow setpoint of the master controller is specified by the room-temperature controller based on the room-temperature deviation within the range between min and max. In this case, the master controller can activate a re-heater or a radiator valve actuator, in order to provide another heating or cooling sequence. The volume flow actual-value signal of the master controller is specified as the command signal for the slave controller. This type of connection is also known as "schedule control". The result is that if there are changes to the upstream pressure in the air network due to fluctuations in duct pressure control, these disruptions can be detected and transmitted directly to the slave controller. This guarantees an equal-percentage ratio between the supply- and exhaust-air controllers. The command signal or the actual value signal rqv from the master controller can be connected in parallel to several slave controllers.

The required operating volume flow between min and max is parameterised on the master controller. On the slave controller, min is set to 10% and max is set to 100%. Alternatively, min and max can be set so that min (slave) < min (master) and max is (slave) > max (master). It should be ensured here that nom parameterised with the same value for the master and slave controllers to ensure synchronicity of the controllers. If the nom values on the supply- and exhaust-air sides are configured differently, undesirable negative or positive pressure may occur in the room. • Room positive pressure setting = • Room negative pressure setting =

supply ≥

supply ≤

exhaust exhaust

Note: With this type of room pressure generation, the resultant room pressure depends on the size of . Defined room pressures can be achieved using room pressure controllers and the ∆ function. For priority control, the digital inputs on the supply and exhaust air controllers are activated in parallel via switching contacts. The desired parameters for min, max and mid are set using software. This method of operation is also suitable for constant air volume control, and this function is also achieved by a constant command signal at the setpoint input.

Schematic (Example 2)

Legend

12/15

1

VAV compact controller, ASV115CF152

2

Room-temperature sensor EGT336F001

3

VAV box

4

Building management system (BMS): temperature setpoint/actual value for air volume

5

-

6

AXS215SF122 valve actuator

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ASV115 Volume flow parameters (

supply

=

exhaust)

Volume flow, setpoint Master (supply air) Slave (exhaust air) c-factor Volume flow, actual value, master Volume flow, actual value, slave

cqV.s = 40% ≡4V min = 20% max = 100% nom = 1000 m³/h min = 10% max = 100% nom = 1000 m³/h 100 (ρ = 1.2 kg/m³) rqv = 40% ≡ 4 V ≡ 400 m³/h rqv = 40% ≡ 4 V ≡ 400 m³/h

Control diagram supply

=

exhaust

Master

Slave

Supply air

Exhaust air

Vnom

10V

Vmax

Vnom

10V

Vmin 0 0 Setpoint

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5

100%

V

10V

c qV.s

0

Vmin

0 0

100% 5

10V

V

rqV

5

0

cqV.s B11699

5

rqV

Vmax

13/15

ASV115 for the room pressure is measured by a room-pressure sensor and fed to the input (AI02 rP) of the VAV controller. The room-pressure setpoint is set in the ASV115. Depending on the room-pressure control deviation, the volume flow is increased or decreased until the room-pressure setpoint is reached. With this system, there is no need for door contacts to freeze the room-pressure control. Room-pressure control is always performed with respect to a reference pressure (reference pressure source, e.g. accessory 0297867001).A condition for stable room pressure is that the supply air and the return air must be equipped with VAV controllers.

Example 3: Room pressure control (master-slave) Due to the high tightness requirements for clean rooms and laboratories, the maintenance of pressure in these areas calls for special attention. It is appropriate to use systems with supply- and exhaustair volume controllers for these purposes. As standard, room pressure control in laboratories is implemented via the supply air (negative pressure control), but in clean rooms it is implemented via the exhaust air in most cases (positive pressure control). Constant maintenance of room pressure is ensured by cascading room pressure controllers and volume flow controllers. With the roompressure control integrated into the ASV115, this cascading is performed directly in the VAV compact controller. The actual value Schematic (Example 3)

3

Slave

-

1 3

∆p

M

Master EY-modulo

4

-

1 4

∆p

M

2

cq.v

EY-modulo

rq.v

5

Pressure Reference Line

B11703

cqV.p.ad

Legend

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1

VAV compact controller, ASV115CF152

2

-

3

VAV box

4a

Building management system (BMS): night set-back mode/volume flow actual value

4b

Building management system (BMS): night set-back mode/room pressure setpoint change-over, actual value for air volume

5

Room-pressure EGP100F101

sensor

with

symmetrical

measuring

range,

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ASV115 Volume flow parameters (room positive pressure

supply

≥

exhaust)

Volume flow, setpoint Master (supply air)

cqV.s = 40% ≡4V min = 20% max = 100% = 1000 m³/h Slave (exhaust air) min = 20% max = 100% = 900 m³/h c-factor 100 (ρ = 1.2 kg/m³) Volume flow, actual value, master rqv = 40% ≡ 4 V ≡ 400 m³/h Volume flow, actual value, slave rqv = 40% ≡ 4 V ≡ 360 m³/h Volume flow parameters (room negative pressure

supply

Volume flow, setpoint Master (supply air)

≤

nom

nom

exhaust)

cqV.s = 40% ≡4V min = 20% max = 100% = 1100 m³/h Slave (exhaust air) min = 20% max = 100% = 1000 m³/h c-factor 100 (ρ = 1.2 kg/m³) Volume flow, actual value, master rqv = 40% ≡ 4 V ≡ 440 m³/h Volume flow, actual value, slave rqv = 40% ≡ 4 V ≡ 360 m³/h

nom

nom

Legend 1 2 3 4 5 6 7 8 9

VAV compact controller, ASV115 Fume cupboard control panel, FCCP100 Fume cupboard controller FCIU100/ecos 5 Contacts Vmin Contacts > 500 mm (does not apply to SGU100F010/F011) Sash sensor, SGU100 Air-flow transducer, SVU100 Fume cupboard light Occupancy sensor

In accordance with the specified setpoint, the volume flow is adjusted between the parameterised min and max values. The reaction times to be respected between opening and closing of the fume cupboard and the volume flow control loop are shown in the following diagram. Control diagram

Example 4: Control and monitoring of fume cupboards Various solution concepts are approved in order to ensure that fume cupboards are capable of retaining harmful substances as per EN 14175. They differ in terms of the measurement of the volume flow requirement, which is determined either proportionately to the opening of the sliding door on the front of the fume cupboard or proportionately to the air inflow velocity. The volume flow must be updated within seconds, i.e. when the front sliding door is opened, the positioning time for the damper must be short. The running time of the ASV115CF152 must be parameterised in the range from 3 to 5 s. The command signal cqV.s for the volume flow control loop is generated by the SGU100 sash sensor or the SVU100 air-flow transducer in combination with the fume cupboard controller. Because of the excess-stroke alarm contacts incorporated in the SGU100F010/F011, separate contacts are no longer needed. Schematic (Example 4)

Used in combination with the ASV115 compact controller, a VAV box and the SGU100 and/or SVU100 sensors, the FCCP and FCIU monitoring system provides energy-efficient operation and regulates the ventilation in accordance with EN 14175-6.

M

1

y2

N ight Xi

Alarm

+

-

0p

y

RS-485

y1

7 PD/F

a visual and With a setpoint/actual value deviation of > 15% acoustic alarm is triggered on the FCCP100. This tells the operating staff that the fume cupboard is not in a safe condition. The signal required for this alarm is generated on the ASV115CF152 and is present at output AO02 its slope is largely adjustable.

This combination has been certified as part of the prototype testing procedure as per EN 14175-6. Certificates can be downloaded from the SAUTER extranet.

3

6 G

8 9 5

2

© Fr. Sauter AG Im Surinam 55 CH-4016 Basle Tel. +41 61 - 695 55 55 Fax +41 61 - 695 55 10 www.sauter-controls.com [email protected]

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Printed in Switzerland

B12114

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7152150003 03 15/15