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Compact controller XDMB0 for TVE and TVE-Q
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BACnet image marketing highlights

Bus interface BACnet MS/TP

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Bus interface Modbus RTU

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VAV control unit variant TVE-Q-P1 (powder-coated)

Control component for type TVE-Q

Control component for type TVE-Q

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Control component for type TVE

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XDMB0 

Control component with dynamic transducer and Modbus RTU interface

Compact unit for VAV control unit TVE and TVE-Q


 


  • Controller, dynamic differential pressure transmitter and actuator in one housing
  • Use in ventilation and air conditioning systems, only with clean air
  • Simple terminal connection without the use of additional junction boxes
  • Volume flows qvmin and qvmax parameterised at the factory and stored in the controller as variable parameters
  • High data transparency thanks to standardised RS485 digital bus communication 
    BACnet MS/TP: object access
    Modbus RTU: register access
  • Setpoint specifications, override controls depending on configuration via bus interface or analogue wiring
  • Integrated display for volume flow rate display, operating status display and setting of operating parameters
  • Service access for manual setting devices and PC configuration software

 

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General information



Application

  • All-in-one control device for VAV terminal units type TVE and TVE-Q

  • Dynamic effective pressure transducer, electronic controller and actuator are fitted together in one casing

  • For clean air in ventilation and air-conditioning systems; the standard filtering enables use in the supply air without additional dust protection measures

  • Application examples: Offices and classrooms

  • In the event of a strong occurrence of dust, install appropriate extract air filters upstream, as a partial volume flow is routed through the transducer for volume flow rate measurement.

  • If the air is heavily contaminated with dust, fluff, sticky, moist components, use attachment group with static differential pressure transducer, e.g. XSMB0

  • Application examples: Extract air from changing rooms and shower areas, hospital bed rooms

  • Various control options based on setpoint value default setting

  • Volume flow rate control is based on setpoint values received from room temperature controller, MCE, air quality controller or other devices as an analogue signal or via communication interface

  • Override controls for activating qvmin, qvmax, shut-off, open position via Modbus/BACnet register or switch or relay possible

  • The actual volume flow rate is available as a network data point or as a linear voltage signal

  • Damper position, e.g. for fan optimisation, is available as a network data point


Control strategy

  • The volume flow controller works independent of the duct pressure
  • Differential pressure fluctuations do not result in permanent volume flow rate changes
  • To prevent the control from becoming unstable, a dead band is allowed which is not moved by the damper blade
  • The flow rate range for the controller is set in the factory (qvmin: minimum volume flow rate, qvmax: maximum volume flow rate)
  • Operating parameters are set at the factory according to the order code


Operating modes

BACnet (B):

  • Setpoint value specification via BACnet objects

Analogue - variable operation (V):

  • The setpoint value is set via the analogue interface, the signal voltage range corresponds to qvmin – qvmax

Analogue - fixed value operation (F):

  • A setpoint signal is not required, setpoint value corresponds to qvmin

Alternative adjusting possible on site:

  • Modbus: Setpoint specification via Modbus registers


Interface

Communication interfaces

  • BACnet MS/TP, RS485, data points see Tables BACnet PICS
  • Modbus RTU, RS485, see Modbus register list for data points

Analogue interface with adjustable signal voltage range

  • Analogue signal for volume flow setpoint
  • Analogue signal for actual volume flow rate (factory setting)
  • Alternatively: analogue signal for damper position (on-site conversion required)

Note:

  • Interface type according to order code detail
  • Operating mode parameterised at the factory, changeover possible on site


Parts and characteristics

  • Transducer for dynamic pressure measurements
  • Overload proof actuator
  • Terminals with cover
  • Display and control elements for easy menu navigation

  • Menu navigation for adjusting operating parameters

  • Menu navigation for customising the communication interface

  • Service interface


Construction

  • TR0VM-024T-10I-DD15-BN
  • Can only be used for type TVE and TVE-Q





Operating modes

BACnet (B):

  • Setpoint value specification via BACnet objects

Analogue - variable operation (V):

  • The setpoint value is set via the analogue interface, the signal voltage range corresponds to qvmin – qvmax

Analogue - fixed value operation (F):

  • A setpoint signal is not required, setpoint value corresponds to qvmin

Alternative adjusting possible on site:

  • Modbus: Setpoint specification via Modbus registers

Technical information

Function, Technical data, Specification text, Order code

  • FUNCTION
  • TECHNICAL DATA
  • SPECIFICATION TEXT
  • ORDER CODE
XS0_dia_01ai.png

1 Differential pressure transducer
2 Actuator
3 Volume flow controller
4 Setpoint value via BACnet, Modbus or analogue signal
5 Shaft with effective pressure channel

VAV terminal units control the volume flow in a closed loop, i.e. measurement – comparison – correction.
For volume flow rate measurement the effective pressure is measured first. This is done with a differential pressure sensor. The integral differential pressure transducer transforms the effective pressure into a voltage signal. The actual volume flow rate is available as a voltage signal. The factory setting is such that 10 V DC always corresponds to the nominal flow rate (qvnom).
The volume flow rate setpoint value comes from a higher-level controller (e.g. room temperature controller, air quality controller, central BMS). Variable volume flow control results in a value between qvmin and qvmax. It is possible to override the room temperature control, e.g. by a complete shut-off of the duct.
The controller compares the differential pressure setpoint value to the actual value and controls the actuator accordingly if there is a difference.

Compact controller XDMB0 for TVE and TVE-Q Compact controller XDMB0 for TVE and TVE-Q
Compact controller for VAV terminal units

Part number

Type of installation component

VAV terminal units

AOOOOOO823O5

TROVM-O24T-1Ol-DD15-BN

TVE, TVE-Q

TR0VM-024T-10I-DD15-BN

Type of measurement/installation orientation

Dynamic measurements, any installation orientation

Supply voltage (AC)

24 V AC, ± 2O %, 5O/6O Hz

Supply voltage (DC)

24 V DC ± 2O %


Power rating (AC)

TVE NW 1OO - 16O: maximum 4 VA TVE NW 2OO - 4OO: maximum 6 VA TVE-Q up to height 2OO: maximum 4 VA TVE-Q from height 3OO: maximum 6 VA


Power rating (DC)

TVE NW 1OO - 16O: maximum 2.5 W

TVE NW 2OO - 4OO: maximum 3 W

TVE-Q up to height 2OO: maximum 2.5 W

TVE-Q from height 3OO: maximum 3 W

Power consumption (when running/when idle)

1 W

Setpoint value signal input (analogue optional)

0 - 10 V DC, input resistance > 100 kΩ or 2 - 10V DC Ra> 50 kΩ

Actual value signal output

O - 1O V DC or 2 - 1O V DC; maximum 5 mA

lEC protection class

lll (Protective extra-low voltage)

Protection level

lP 42 (with attached terminal cover)

EC conformity

EMC to 2O14/3O/EU

Bus connection

RS485, BACnet MS/TP or Modbus RTU

Number of nodes (bus participants)

128


BACnet communication parameters to be set

Baud rate adjustable: 96OO, 192OO, 384OO, 576OO, 768OO, 1152OO baud

Start bit: 1

Data bits: 8

Stop bits: 1

no parity


Adjustable communication parameters for Modbus

Baud rate adjustable: 12OO, 24OO, 48OO, 96OO, 192OO, 384OO, 768OO, 1152OO baud

Start bit: 1

Data bits: 8

Stop bits adjustable: 1 or 2

Parity: adjustable: None, Even, Odd

Setpoint / actual value interface

BACnet operation: via BACnet objects Modbus operation: via Modbus register list

Bus termination

externally required (120 Ω)

This specification text describes the general characteristics of the product.

Category

  • Compact controller for volume flow rate


Application

  • Control of a constant or variable volume flow rate setpoint
  • Electronic controller for connecting a reference variable and tapping an actual value for integration into a BACnet- or Modbus-based MCE
  • The actual value relates to the nominal volume flow rate so that commissioning and subsequent adjustment are simplified


Area of application

  • Dynamic transducer for clean air in ventilation and air conditioning systems


Actuator

  • Integrated; slow-running (run time 100 s for 90°)


Installation orientation

  • Either direction


Connection

  • Terminals with cover by rubber cap, therefore no additional terminal box required
  • Double terminal for supply voltage for easy wiring of up to 3 controllers


Supply voltage

  • 24V AC/DC


Interface/signalling

  • BACnet MS/TP (RS485) or analogue signal 0 - 10 V DC or 2 - 10 V DC parameterised at the factory depending on the order option
  • Optional on-site alternative: Modbus RTU (RS485)


Interface information

  • BACnet or Modbus: among other things, volume flow setpoint and actual value signal, damper position, override control
  • Alternatively: Volume flow setpoint and actual value signal as analogue signal


Special functions

  • Clearly visible external indicator light for signalling the functions: Set, not set, and power failure
  • Display for actual values, parameterisation and for test functions
  • Activation of override control functions qvmin, qvmaxclosed, Open via bus interface
  • External switching contacts/wiring (with analogue interface)


Parameter setting

  • Specific parameters for VAV terminal unit are factory-set
  • Operating values: qvmin, qvmax; factory-set BACnet interface type
  • Subsequent customisation via display and control element directly on the device or with optional tools: Adjustment device, PC software (cable connection in each case)


Factory condition

  • Electronic control component mounted on base unit at the factory
  • Factory-set parameters
  • Functional test with air (see sticker)


TVE – D / P1 / 100 / D2 / XDMB0 / V0 / 20 - 350 [m³/h]
|||||||||
1235678910
1 Type
TVE VAV air terminal unit

2 Acoustic cladding
No entry: without acoustic cladding
D with acoustic cladding

3 Material
No entry: galvanised sheet steel
P1 Powder-coated RAL 7001 (silver grey)
A2 Stainless steel construction

5 Nominal size [mm]
100, 125, 160, 200, 250, 315, 400

6 Accessories
No entry: without accessories
D2 Double lip seal both ends
G2 Matching flanges both ends

7 Attachment (control component)
XDMB0 Volume flow controller with display, Modbus RTU or BACnet MS/TP interface

8 Operating mode
F Constant value mode, one setpoint value (no external switch contact)
V Variable operation (default setpoint value from analogue signal)
B BACnet MS/TP interface, variable operation (setpoint specification via BACnetObject)

9 Signal voltage range
(only with operating mode F, V)
0 0 – 10 V DC
2 2 – 10 V DC

10 Operating values for factory setting
Volume flow rate [m³/h or l/s]
qvconst (with operating mode F)
qvmin – qvmax (with operating mode V, B)


Order example: TVE-D/P1/100/D2/XDMB0/V0/20-350[m³/h]

TypeTVE: VAV terminal unit
Acoustic claddingwith acoustic cladding
MaterialPowder-coated RAL 7001 (silver grey)
Nominal size [mm]100
AccessoriesDouble lip seal both ends
Attachment (control component)Volume flow controller with dynamic measuring principle, display and digital
Bus interface for BACnet MS/TP, Modbus RTU and analogue interface
Operating modevariable operation, control with analogue signal
Signal voltage range0 – 10 V DC
Operating values for factory setting20 – 350 [m³/h]

Variants

  • VARIANTS
Compact controller XDMB0 for TVE and TVE-Q
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1 Compact controller
2 Damper blade position indicator and release button
3 Display
4 Rotary selector switch - Selection of options/setting values
5 LED button - Selection of menu entry
6 Connection terminal

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Downloads

product information

  • Product data sheet XDMB0

    XDMB0_PD_2024_05_27_DE_en Product data sheet 630 KB pdf

operation manuals

  • Installation and commissioning instructions XM0 XS0

    XM0_XS0-Compact_IM_A00000088381_V2_2022_02_GB_en Installation and commissioning instructions 1,4 MB pdf
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