XSMB0

Static transducer type

Control component for type TVE

Control component for type TVE-Q

XSMB0

Control component with static transducer and BACnet- MS/TP as well as Modbus-RTU interface

Compact device for VAV terminal unit TVE and TVE-Q
■ Controller, static differential pressure transducer and actuator in one casing
■ Use in ventilation and air conditioning systems, for clean and contaminated air
■ Simple terminal connection, no additional junction boxes needed
■ Volume flow rates qvmin and qvmax are pre-set at the factory and saved in the controller as variable parameters
■ High data transparency via standardised bus communication
RS485 BACnet MS/TP: Object access
Modbus RTU: Register access
■ Setpoint specifications, override controls via bus interface or analogue wiring, depending on configuration
■ Integrated display for volume flow rate display, operating status display and setting of operating parameters
■ Service access for manual adjustment devices and PC configuration software

General information

Application

All-in-one control device for VAV terminal units type TVE and TVE-Q
Static differential pressure transducer, controller electronics and actuator combined in one casing
For clean and contaminated air in ventilation and air conditioning systems:

E.g. in the extract air area with dust, fluff, sticky or moist components
Application examples: Extract air from changing rooms and shower areas as well as hospital bedrooms, production facilities and corridor areas - e.g. in schools

Various control options based on corresponding setpoint specification
Room temperature controller, management and control equipment (MCE), air quality controller and others control the variable volume flow regulation by specifying setpoints via communication interface or analogue signal
Override control for activating qvmin, qvmax, shut-off or open position via BACnet object, Modbus register or switch/relay possible (depending on interface configuration)
The actual volume flow rate is available as a network data point or as a linear voltage signal
Damper blade position, e.g. for fan optimisation, is available as a network data point

Control strategy

The volume flow controller works independently of duct pressure
Pressure fluctuations do not cause any permanent volume flow deviations
A dead zone (hysteresis), within which the damper blade is not moved, ensures stable regulation
The volume flow range for the controller is factory-set (qvmin: minimum volume flow, qvmax: maximumvolume flow)
Operating parameters are defined in the order code and factory-set

Operating modes

BACnet (B):

Setpoint specification via BACnet objects

Analogue – variable operation (V):

Setpoint specification via analogue interface,
Signal voltage range corresponds to qvmin – qvmax

Analogue - fixed value operation (F):

A setpoint signal is not required, setpoint corresponds to qvmin

Modbus (M):

Setpoint specification via Modbus register

Interface

Communication interfaces

BACnet MS/TP, RS485, data points see tables BACnet PICS
Modbus RTU, RS485, data points see Modbus-register list

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 adjustment required)

Note:

Interface type according to order code detail
Operating state parameterised at the factory, on-site adjustments possible

Signal voltage ranges

When using the analogue interface

0 – 10 V DC
2 – 10 V DC

Parts and characteristics

Transducer based on static measurement principle
Overload-protected actuator
Connection 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-DS12-BN
Can only be used for type TVE and TVE-Q

Commissioning

As the volume flow rates are factory-set, the air terminal units must be installed only at the designated locations
Analogue interface: ready for use after installation and wiring
BACnet and Modbus interface: additional commissioning steps required after installation and wiring
Operating parameters can be customised on site (via bus interface, display operation, adjustment device, or PC software)

Useful additions

Adjustment device type GUIV3-M (order code AT-VAV-G3)
PC software

TECHNICAL INFORMATION

1 Differential pressure transducer
2 Actuator
3 Control component
4 Setpoint via Modbus
5 Shaft with effective pressure channel

Volume flow controllers are characterised by a closed control loop for controlling the volume flow, i.e. measuring - comparing - adjusting.
The volume flow is obtained by measuring a differential pressure.
This is done via a differential pressure sensor. The integrated differential pressure transducer converts the differential pressure into a voltage signal. The actual volume flow value is available as a data point and voltage signal. Due to factory settings, 10 V DC always corresponds to the nominal volume flow (qvnom).
The volume flow setpoint is specified by a higher-level controller (e.g. room temperature controller, air quality controller, MCE).
Variable volume flow control can be set between qvmin and qvmax. It is possible to override the room temperature control by override control, e.g. via a shut-off.
The controller compares the volume flow setpoint with the current actual value and adjusts the internal actuator, according to the control deviation.

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.

Category

Compact controller for volume flow

Anwendung

Control of a constant or variable volume flow setpoint
Electronic controller for input of a setpoint and tapping an actual value for integration into a BACnet- or Modbus-based MCE
The actual value is referenced to the nominal volume flow, simplifying commissioning and subsequent adjustment

Area of application

Static transducer for contaminated air in ventilation and air conditioning systems

Actuator

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

Installation orientation

Either direction

Connection

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

Supply voltage

24 V AC/DC

Interface/signalling

BACnet MS/TP (RS485), Modbus RTU (RS485), or analogue signal 0 – 10 V DC or 2 – 10 V DC factory preset, depending on the order option
Interface type is factory pre-set, as per order code

Interface information

BACnet or Modbus: among other things, volume flow setpoint and actual value signal, damper blade 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: controlled, not controlled, and power failure
Display for actual values, parameter setting, and for test functions
Activation of override control functions qvmin, qvmax, Closed, Open via bus interface
External switching contacts/wiring (for analogue interface)

Parameter setting

Specific parameters for VAV terminal unit are factory-set
Operating values: qvmin, qvmax and interface type are factory-set
Subsequent adjustment via display and control element directly on the device or with optional tools:

Adjustment device, PC software (each wired)

Factory condition

Functional test under air using reference measurement on a regularly validated test rig in accordance with DIN EN ISO 9001 to check the function and control accuracy of the complete volume flow controller
Adjustment of the device-specific parameters under air by reference measurement on a regularly validated test rig if in accordance with DIN EN ISO 9001
The test report of the factory parameterisation, functional test and adjustment must be made available after delivery of the volume flow controller

Equivalence criteria

Electrical connections with screw terminals, no additional terminal boxes required
The test report of the factory parameterisation, functional test and adjustment under air by reference measurement on a regularly validated test rig in accordance with DIN EN ISO 9001 is made available

TVE

–

100

XSMB0

200 – 900 [m³/h]

1 Type
TVE VAV terminal unit

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

3 Material
No entry: galvanised sheet steel
P1 Air duct powder-coated RAL 7001 (silver grey)
A2 Stainless steel variant

4 Air duct connection
No entry: push-fit end for air ducts according to DIN EN 1506; with groove for optional seal
FL Flanges on both ends

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

6 Accessories
No entry: without accessories
D2 Double lip seal on both sides (only with push-fit end air duct connection)
G2 Matching flange for each flange (only with air duct connection FL)

7 Attachment (control component)
XSMB0 Static volume flow controller with display, Modbus RTU or BACnet MS/TP or analogue interface

8 Operating state
F Fixed value operation, one setpoint (no external switch contact)
V Variable operation (setpoint specification via analogue signal)
M Modbus RTU interface (setpoint specification via Modbus register)
B BACnet-MS/TP interface (setpoint specification via BACnetObject)

9 Signal voltage range
Only for operating state F and 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 (for operating state F)
qᵥmin – qᵥmax (for operating state V, M, B)

Order example: TVE/100/D2/XS0/M/20-350 m³/h

Acoustic cladding	Without
Material	Galvanised sheet steel
Nominal size	100 mm
Accessories	Double lip seal both sides
Attachment	Compact controller Modbus, static transducer
Operating mode	Modbus RTU
Volume flow rate	20 – 350 m³/h

Compact controller for VAV terminal units

Part number	Type of installation component	VAV terminal units
A00000082306	TR0VM-024T-10I-DS12-BN	TVE, TVE-Q

Compact controller TR0VM-024T-10I-DS12-BN

Type of measurement/installation orientation	static measuring principle, position-independent
Supply voltage (AC)	24 V AC, ± 20 %, 50/60 Hz
Supply voltage (DC)	24 V DC ± 20 %
Power rating (AC)	TVE NW 100 - 160: maximum 4 VA TVE NW 200 - 400: maximum 6 VA TVE-Q up to height 200: maximum 4 VA TVE-Q from height 300: maximum 6 VA
Power rating (DC)	TVE-Q up to height 200: maximum 1.5 W TVE-Q from height 300: maximum 3 W TVE NW 100 – 160: maximum 1.5 W TVE NW 200 - 400: maximum 3 W
Power consumption (when running/when idle)	1 W
Run time for 90°	100 s
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	0 - 10 V DC or 2 - 10 V DC; maximum 5 mA
IEC protection class	III (Protective extra-low voltage)
Protection level	IP 42 (with attached terminal cover)
EC conformity	EMC to 2014/30/EU
Bus connection	RS485, BACnet MS/TP or Modbus RTU
Number of nodes (bus participants)	128
adjustable communication parameters for Modbus	1200 – 115,200 Bd Start bit: 1 Data bits: 8 Stop bits adjustable: 1 or 2 Parity adjustable: None, Even, Odd
adjustable communication parameters for BACnet	Selectable baud rate: 9600, 19200, 38400, 57600, 76800, 115200 baud Start bit: 1 Data bits: 8 Stop bits: 1 no parity

Setpoint/actual value interface

BACnet operation: via BACnet objects

Modbus operation: via Modbus register list

Cable termination

externally required (120 Ω)

Downloads

product information

Product data sheet XSMB0

XSMB0_PD_2026_05_06_DE_en Product data sheet 660 KB pdf

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XSMB0

Control component with static transducer and BACnet- MS/TP as well as Modbus-RTU interface

General information

TECHNICAL INFORMATION

Compact controller for VAV terminal units

Compact controller TR0VM-024T-10I-DS12-BN

Downloads

product information

Product data sheet XSMB0

TECHNICALLY NECESSARY

STATISTICS AND WEBSITE ANALYSIS

CONVENIENCE AND PERSONALISATION

FOR THE BEST TROX EXPERIENCE