Schneider Electric TAC Xenta 102-ES Users Manual

TAC Vista

TAC Pangaea

WorkStation

TAC Xenta 102-ES

Product Manual

TAC Vista

TAC Xenta 102-ES

Product Manual

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Zone Controller, TAC Xenta 102-ES Contents

INTRODUCTION

1 Documentation and Terminology 9

1.1 Documentation........................................................................................................... 9

1.2 Terminology............................................................................................................... 9

REFERENCE

2 Zone Controller TAC Xenta 102-ES 13

2.1 General....................................................................................................................... 13

2.2 Wall Modules............................................................................................................. 15

2.2.1 STR350/351 ............................................................................................................... 15

2.2.2 STR150 ...................................................................................................................... 16

2.2.3 STR100-104............................................................................................................... 17

2.2.4 Wall Module Configuration....................................................................................... 18

2.3 Applications ............................................................................................................... 19

2.3.1 General....................................................................................................................... 19

2.3.2 The Zone Controller TAC Xenta 102-ES .................................................................. 19

3 Installation 23

3.1 Mechanical Installation.............................................................................................. 23

3.1.1 Fitting......................................................................................................................... 23

3.2 Electrical Installation ................................................................................................. 24

3.2.1 General....................................................................................................................... 24

3.2.2 Wiring of Xenta 102-ES, Application with Damper Control Only ........................... 27

3.2.3 Wiring of Xenta 102-ES, Application with Damper and Reheat Control.................. 28

3.2.4 Wiring of Xenta 102-ES, Application with Damper and Two- Stages of Reheat Control 29

3.2.5 Connecting to STR150............................................................................................... 30

3.2.6 Air Flow Balancing Procedure................................................................................... 30

3.3 Commissioning .......................................................................................................... 32

3.3.1 General....................................................................................................................... 32

3.3.2 Node Status ................................................................................................................32

3.3.3 Configuration Parameters (nci´s)............................................................................... 33

3.3.4 Network Installation.............................................................. ..... ................................ 33

3.3.5 Network Variable Binding.................................................... ..... ................................ 34

3.3.6 Function Test..............................................................................................................34

4 Configuration Parameters 35

4.1 Basic Parameters...................................................... .................................................. 36

4.2 Other Configuration Parameters ................................................................................ 37

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Contents Zone Controller, TAC Xenta 102-ES

5 Functional Description 41

5.1 General ....................................................................................................................... 41

5.2 The Controller’s Basic Functions............................................................................... 41

5.2.1 Operation Modes ......................................................................... .... ........................... 41

5.2.2 Application, Manual and Emergency Modes............................................................. 43

5.2.3 Measuring Zone Temperature .................................................................................... 45

5.2.4 Setpoint Calculation ................................................................................................... 46

5.2.5 Temperature Control Sequence for TAC Xenta 102-ES............................................ 48

5.3 More About Functions................................................................................................ 49

5.3.1 Cooling Control............................................................................................. ............. 49

5.3.2 Heating Control .......................................................................................................... 50

5.3.3 Fan Control................................................................................................................. 50

5.3.4 Air Quality Control..................................................................................................... 51

5.3.5 Window Contact......................................................................................................... 52

5.3.6 Occupancy Sensor ...................................................................................................... 52

5.3.7 Alarm.......................................................................................................................... 53

5.3.8 Master/slave Operation............................................................................................... 54

5.3.9 Additional Features ................................................... .... ............................................. 55

6 Troubleshooting 57

6.1 General ....................................................................................................................... 57

6.2 Inputs and Outputs (nvi/nvo)...................................................................................... 57

6.3 Troubleshooting Guide............................................................................................... 59

7 Technical Data 61

7.1 Technical Data............................................................................................................ 61

7.2 Dimensions................................................................................................................. 64

8 Communication 65

8.1 General ....................................................................................................................... 65

8.2 Default Settings and Power On .................................................................................. 65

8.3 Monitoring Network Variables, Heartbeat................................................................. 66

8.4 Not Accepted Values.................................................................................................. 66

8.5 The Node Object......................................................................................................... 67

8.5.1 The Node Object’s Inputs (nvi).................................................................................. 68

8.5.2 The Node Object’s Outputs (nvo) .............................................................................. 68

8.5.3 The Node Object’s Configuration Parameters (nci)................................................... 68

8.6 The Controller Object................................................................................................. 69

8.6.1 The Controller Objects Inputs (nvi) ........................................................................... 71

8.6.2 The Controller Objects Outputs (nvo)........................................................................ 72

8.6.3 The Controller Object’s Configuration Parameters (nci)........................................... 73

APPENDIX

A Setpoint Calculation 77

B Commissioning Protocol 81

Index 85

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INTRODUCTION

1 Documentation and Terminology

Zone Controller, TAC Xenta 102-ES 1 Documentation and Terminology

1 Documentation and Terminology

1.1 Documentation

Enclosed Documentation

TAC Xenta 102-ES is delivered with an installation instruction: TAC Xenta 102-ES, Installation instruction

1.2 Terminology

Some useful terms and abbreviations regarding the zone controller's application and network communication are explained in the table below.

Table 1.1: Terminology

or can be ordered from your

neuron

node SNVT Standard Network Variable Type

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communication processor with built-in protocol

communication unit on the network

1 Documentation and Terminology Zone Controller, TAC Xenta 102-ES

Table 1.1: Terminology

nvixxx variable that gets its value from another

unit on the network

nvoxxx variable that is sent to another unit on the

network

ncixxx configuration parameter; variable that gets

its value from another unit on the network and keeps it during a power failure

service pin function that can be used during installa-

tion on the network

wink

confirmation that the connection to a controller via the network is working (a LED is lit for appr. 20 seconds)

LNS

LonWork

Network Services. System tool for installation, configuration and maintenance of LonWorks network

TAO Thermal Actuator Output.

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REFERENCE

2 Zone Controller TAC Xenta 102-ES

3 Installation

4 Configuration Parameters

5 Functional Description

6 Troubleshooting

7 Technical Data

8 Communication

Zone Controller, TAC Xenta 102-ES 2 Zone Controller TAC Xenta 102-ES

2 Zone Controller TAC Xenta 102-ES

2.1 General

The zone controller TAC Xenta 102-ES is intended for VAV applications in offices and other large buildings. The VAV controller maintains a constant temperature in the zone by regulating the flow of air at a constant temperature into the room.

The Controller’s Basic Functions

The controller have a number of built-in functions that are designed to handle normal control situations. There are four operating modes to choose from (comfort, economy, bypass and off) and five modes to force the controller (auto, heating, cooling, night purge and off). The air flow is measured with a built-in air flow sensor. The zone temperature is measured using a permanent thermistor sensor or a temperature node connected to the network. Setpoint calculations are made in line with defined methods. The controller is equipped with an air qu ality function if it has been connected to a carbon dioxide sensor.

There is a detailed description of all the basic functions in Section 5.2, “The Controller’s Basic Functions”, on page 41.

More About Functions

Apart from the controller’s basic functions, there are a number of other functions for controlling the climate in the zone; these are described in detail in Section 5.3, “More About Functions”, on page 49. Additional external functions that can be connected are also described in this chapter, these include window contact sensor and occupancy sensor.

Communications

The controller can work either as a stand-alone unit, without being connected to a network during operation, or be a part of a larger system with several other units such as TAC Xenta 300/400 and other zone controllers in the TAC Xenta family (Fig. 2.1). A detailed description of how units work together in a larger zone system, is found in “Zone Systems Guidelines”, part number 0-004-7637.

TAC Vista is an excellent tool for reading variables as well as a configuration tool for commissioning and/or operation purposes. When TAC Vista is not part of the system, reading and configuration of variables can be made from the operating panel TAC Xenta OP, version 3.11 or later.

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103-A103-A103-A103-A

102-EF102-EF102-EF102-EF102-EF

102-ES102-ES102-ES102-ES102-ES102-ES

102-B 102-B102-B

101-1VF 101-2VF101-1VF101-1VF101-1VF101-1VF101-1VF101-1VF101-1VF

Analog

I/O

Digital

I/O

TAC

Xenta

300

Router

TAC

Xenta

400

TAC

Xenta

400

3rd

floor

Office 3:1 Office 3:2

Office 3:3 Office 3:4

Office 3:5

Office 3:6 Office 3:7 Office 3:8 Office 3:9

2nd

floor

Office 2:1

Office 2:2

Office 2:3

Office 2:4 Office 2:5

Office 2:6Room 2:1

Master

Room 2:2

Slave

Room 2:3

Slave

TAC Vista

1st

floor

Room

1:1

Slave

Room 1:2

Slave

Room

1:4

Slave

Room 1:3

Slave

Room 1:5

Master

Office 1:1

Office 1:2

Office 1:3

Office 1:4

4th

floor

Ground

floor

Fig. 2.1: Zone controller in a larger system together with TAC Vista

2 Zone Controller TAC Xenta 102-ES Zone Controller, TAC Xenta 102-ES

The controller is LonMark® approved and communicates on a Lon-

TP/FT-10 network via a twisted-pair, unpolarized cable. If you

Talk want to know more about the LonWorks

technology, visit the internet

addresses www.echelon.com or www.lonmark.org.

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Zone Controller, TAC Xenta 102-ES 2 Zone Controller TAC Xenta 102-ES

Select button

Increase/Decrease buttons

Bypass/On-Off button

Display

2.2 Wall Modules

A temperature sensor must be mounted somewhere in the controlled zone. In the STR series of wall modules the temperature sensor is combined with various types of user interfaces. Several STR models are well suited for TAC Xenta 102-ES regarding desired functionality and user interface.

• STR350/351. Wall unit with temperature sensor and LCD display. Extensive functionality for zone control. Communicates with the controller over LonWorks.

• STR150. Wall unit with temperature sensor and LCD display. Have the most common functions for zone control. One-way serial communication with the controller.

• STR100-104. Wall module with temperature sensor and controls for the most common functions for zone control. STR100-107 signals are hard-wired to TAC Xenta 102-ES.

2.2.1 STR350/351

STR350/351 communicates on LonWorks. LonWorks is used for all data exchange between the room unit and the controller.

Regarding TAC Xenta 102-ES, STR350/351 has the following functionality:

• Temperature sensor . Use either the built in thermistor element or another temperature sensor available on the LonWorks network

• Actual temperature display. The actual zone temperature can be displayed on the LCD, but can also be hidden if desired.

• Temperature setpoint display. The temperature setpoint can be displayed, either as an absolute value or as an offset.

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2 Zone Controller TAC Xenta 102-ES Zone Controller, TAC Xenta 102-ES

Fig. 2.2: Wall module STR150

Bypass button

Increase/Decrease buttons

Fan speed control

Display

• Temperature setpoint adjustment. The temperature setpoint can

be adjusted, either as an absolute value or as an offset.

• Bypass or on/off button. There is a bypass function which forces

the controller to comfort mode for a configurable period of time. The same button can alternatively be used as an on/off button.

• Mode Indicator. An On/Off symbol in the LCD indicates the

mode of the control.

For technical details of the functionality listed above, additional functionality and for configuration details, see the STR350/351 configuration and data sheets.

Use the LNS plug-in to configure STR350/351.

2.2.2 STR150

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STR150 connects to TAC Xenta 102-ES with two or three wires. The third wire is used only if mode indication in the LCD is desired. On the other two wires information is sent from the wall unit to the controller:

• Zone temperature. The temperature sensed by the thermistor ele-

• Temperature setpoint. The temperature setpoint, which is dis-

• Bypass button. The bypass button forces the controller to comfort

The mode indication signaled on the third wire is connected to the man symbol in the LCD:

• Comfort mode (On) is indicated by a steady man symbol

ment.

played as an absolute temperature, but transmitted as an offset to the configured reference temperature.

mode for a fixed period of time (2 h).

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Zone Controller, TAC Xenta 102-ES 2 Zone Controller TAC Xenta 102-ES

Fig. 2.3: Wall module STR104

Mode indicator On/Off

Bypass button

Temperature setting wheel

Fan speed control

• Economy (Standby) mode is indicated by a flashing man symbol.

• Unoccupied (Off-mode) is indicated by the man symbol being off.

There is no communication from the controller to the unit so if a setpoint is changed from TAC Vista, this new value cannot be displayed on STR150.

Configuration of STR150 is done using the buttons and display on the unit. See STR150 configuration and data sheets for details.

2.2.3 STR100-104

STR100-104 is a series of room units that connects to I/O terminals of TAC Xenta 102-ES. The functionality of the various models is given in the Table 2.1, “STR100-104 functionality”.

Table 2.1: STR100-104 functionality

Model Temp Sensor

STR100 X STR101 X X STR102 X X X STR103 X X X STR104 X X X X

Mode

Indicator

Setpoint

Adjustment

STR104 is shown in Fig. 2.3 as an example.

Bypass Button

Note

• The T AC Xenta OP is normally connected direct ly to the controller, not the wall module. The TAC Xenta 101-VF has a TAC Xenta OP access connecter (type RJ-10) on the controller instead of dedicated terminals for the wall module.

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2 Zone Controller TAC Xenta 102-ES Zone Controller, TAC Xenta 102-ES

Depending on model the following functionality may be present:

• Temperature Sensor. All models have a 1.8Kohms@25°C ther-

mistor element.

• Temperature Adjustment. The temperature setpoint can be

adjusted. Using the plastic keys on the rear of the core panel the adjustment range can be set.

• Mode Indicator. The green LED indicates the control mode:

• Comfort mode (On) is indicated by a steady green light

• Economy (Standby) mode is indicated by a flashing green light.

• Unoccupied (Off-mode) is indicated by the LED being off.

• Bypass button. The bypass button forces the controller to comfort

mode for a configurable period of time.

Refer to STR100-107 data sheet and installation sheet for details.

2.2.4 Wall Module Configuration

Wall Module Choice

STR150 is enabled by nciAppOptions bit 14:

• 0 = ZS and STR100-104 or STR350/351 (default)

• 1 = STR150 This can be set using the LonMaker Xenta100 plug-ins in Toolp ack ver-

sion 2.01 or higher, or by means of TAC Xenta OP.

Initial Start Up Status

• SpaceTemp in the application is set to +20.00 Celsius (This can be read in the nvoSpaceTemp, but not in nviSpaceTemp.)

• Fan is set to Fan Auto

TAC Xenta is now waiting for data from the STR module. If no room temperature readings are received within 10 minutes, the

SpaceTemp in the application is set to “invalid”. This is shown as “invalid” in nvoSpaceTemp.

When the first update is received , then the 10 minute limit is changed to 5 minutes.

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Zone Controller, TAC Xenta 102-ES 2 Zone Controller TAC Xenta 102-ES

Unless there is a restart, the Offset + Fan values are not cleared and the last value is valid..

Note

• Fore more information on how to configure and engineer the STR series of wall modules see the documents for each product respectively.

2.3 Applications

2.3.1 General

The TAC Xenta 102-ES controller incorporates several features including

• a built-in air flow sensor and controller algorithms.

• the facility to connect a window contact sensor to stop the heating and cooling functions should a window be opened (Section 5.3.5, “Window Contact”, on page 52).

• an occupancy sensor that can detect the presence of a person in the controlled zone and change the controller from economy to comfort mode (Section 5.3.6, “Occupancy Sensor”, on page 52).

• an air quality control function that can be activated if a carbon dixoide sensor is connected. When a sensor is connected, the controller ensures that the concentration of carbon dioxide in the zone between preset limits (Section 5.3.4, “Air Quality Control”, on page 51).

• an auxiliary temperature sensor that can be connected to measure any temperature and present it as a SNVT (Section 5.3.9, “Additional Features”, on page 55).

2.3.2 The Zone Controller TAC Xenta 102-ES

The controller is designed for the following applications:

• Damper control only

• Damper control with primary heating and one free network output

• Damper control with primary and secondary heating

For fan control applications see Section 5.3.3, “Fan Control”, on page 50.

Damper Control Only

The zone temperature is maintained by controlling of the airflow damper. The airflow is limited to maximum and minimum.

An optional occupancy and/or a CO2 sensor can be connected.

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2 Zone Controller TAC Xenta 102-ES Zone Controller, TAC Xenta 102-ES

Fig. 2.4: Damper control for TAC Xenta 102-ES

Widow contact

Air flow sensor

Damper

Free Network

control output

sensor

Wall module

Occupancy sensor

Auxiliary temperature

sensor

The free network output (V6) can be used in this application. For applications with fan control, see Section 5.3.3, “Fan Control”, on

page 50.

Damper and Primary Heating Control

The zone temperature is maintained by sequence control of the airflow damper and primary reheating. The airflow is limited to maximum and minimum. The reheat control is achieved by an increase/decrease or thermal actuator.

An optional occupancy and/or a CO2 sensor can be connected. The free network controlled output (V6) can be used in this application

(see Section 5.3.9, “Additional Features”, on page 55).

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Zone Controller, TAC Xenta 102-ES 2 Zone Controller TAC Xenta 102-ES

Fig. 2.5: Damper and reheat control for TAC Xenta 102-ES

Widow contact

Air flow sensor

Damper

Free Network

control output

sensor

Wall module

Occupancy sensor

Auxiliary temperature

sensor

Fan

Relay

Actuator

Valve reheat

For applications with fan control, Section 5.3.3, “Fan Control”, on page 50.

Damper Control and Two Stages of Reheat Control

The zone temperature is maintained by sequence control of the airflow damper, primary reheating and secondary reheating. The airflow is limited to maximum and minimum. The reheat control is achieved by an increase/decrease or a thermal actuator for primary reheat and thermal actuator for secondary reheat.

An optional occupancy sensor and a CO2 sensor can be connected.

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2 Zone Controller TAC Xenta 102-ES Zone Controller, TAC Xenta 102-ES

Fig. 2.6: Damper and two stages of reheat control for TAC Xenta 102-ES.

Widow contact

Air flow sensor

Damper

Thermal actuator

sensor

Wall module

Occupancy sensor

Auxiliary temperature

sensor

Fan

Relay

Actuator

Radiators

For applications with fan control, see Chapter 5.3.3, “Fan Control”, on page 50.

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Zone Controller, TAC Xenta 102-ES 3 Installation

Fig. 3.1: TAC Xenta 102-ES fixed to a DIN rail

3 Installation

3.1 Mechanical Installation

3.1.1 Fitting

TAC Xenta 102-ES can either be snapped onto a DIN rail (Fig. 3.1) or fixed to a level surface with two screws. (Fig. 3.2).

To fasten the controller onto a DIN rail:

1 Place the controller on the top of the rail as shown by arrow 1. 2 Twist the controller downwards until it snaps onto the rail as

shown by arrow 2.

3 To remove, use a screwdriver to locate the lock on the bottom of

the controller and pull down. Then lift the controller diagonally upwards and off the rail.

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3 Installation Zone Controller, TAC Xenta 102-ES

Fig. 3.2: TAC Xenta 102-ES fixed to a level surface

Fixing the Controller to on a Level Surface:

Use the two sockets provided for fixing the controller; the maximum screw size is M4 or ST 3,5 (Ø 0.15"). The head of the screw should not exceed 7,5 mm (0.3") in diameter.

3.2 Electrical Installation

3.2.1 General

Warning

• All mains supply cables must be installed by authorized electricians.

1 Each controller or group of controllers must use max. 6 A fuses. 2 Avoid hanging or loose cables by using clamps to secure them to

the controller.

3 A switch to cut off the power supply to the controller or compete

unit must be easily accessible.

4 When no carbon dioxide sensor is connected to the terminals a

jumper must be used to connect U1 and M.

5 When several Xenta controllers receive power from a common

transformer, it is important that all Gs are connected to each other and that all G0s are connected to each other. NB! the connections are not interchangeable. Important exception: the G0 on the wall module should be connected to the terminal OP on the controller and not to the other G0's. The G0 should be grounded at the transformer to prevent interference. At the transformer, G0 should be connected to protective earth. This is to get an grounding point for interference diversion.

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Zone Controller, TAC Xenta 102-ES 3 Installation

6 To ensure that the spec ified measuring accuracy is achieved, the

two M terminals must be connected to the wall module.

Note that this equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Safety Standard

Transformers supplying the controller must comply to the safety standard EN 60 742 or any other relevant safety standard for ELV, 24 V AC. When equipment with a power supply of its own is connected, this power supply must also comply with this norm.

Cable Lengths

For information on communication cable lengths, see TAC Xenta Network Guide, part number 0-004-7460. For all other cables, maximum length is 30 m (100 feet) and min. area is 0,7 mm

(AWG-19).

The Wall Modules

The STR100-104 is primarily intended for use with the Xenta 103. The wall module STR150 can also be used, but in this case the fan speed button is not used. For more information about how to connect and configure wall modules, please refer to the documentation for each respective product.

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3 Installation Zone Controller, TAC Xenta 102-ES

Connection Terminals

The designation of the connection terminals can be found on the label on the front of the controller and the numbers of the terminals can be found on the edge of the printed circuit board.

Termin. Design. Function Type

1 C1 TP/FT-10 communication channel 2 C2 TP/FT-10 communication channel -

4 M Measurement neutral -

5 6 B2 Optional temperature sensor Thermistor input 7 M Measurement neutral 8 U1 Carbon dioxide sensor or jumper Thermistor input 9 D1 LED on wall module Digital output 10 M Measurement neutral 11 X1 Bypass key on wall module Digital input 12 R1 Setpoint adjustment on wall module 10k Ohm linear potentiometer 13 M Measurement neutral 14 B1 Zone temperature sensor Thermistor input 15 G24 V AC (G) Input 16 G0 24 V AC (G0) Input

17 18 G24 V AC supply for TA C Xenta OP 19 V1 Damper actuator: increase Triac 20 G24 V AC (G) supply for V1, V2 21 V2 Damper actuator: decrease Triac 22 V3 Reheat actuator: increase

23 G 24 V AC (G) supply for V3, V4 24 V4 Reheat actuator: decrease

25 V5 Fan on/off control Triac 26 G 24 V AC (G) supply for V5, V6 27 V6 Thermal actuator or free network output Triac 28 Y1 Primary reheat demand Output 0-10 V

a. See chapter 4 Configuration parameters b. Connected to G0 on the wall module. Do not connect to G0 on the controller..

X3 Window contact

Closed contact=closed window)

X2 Occupancy sensor Digital input

OP 24 V AC supply for TAC Xenta OP -

Thermo actuator: on/off parallel V4

Thermo actuator: on/off parallel V3

Digital input

Triac

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Zone Controller, TAC Xenta 102-ES 3 Installation

Optional temperature input

Carbon dioxide sensor

Occupancy sensor

Window contact

Junction Box

TAC Xenta 102-ES

GW1 GX1 GQ1

Lon Talk" TP/FT-10



COM

INC.

24 VAC

Damper actuator

Network controlled output

DEC.

6 9

(mm)

–

Wall Module

21 22

2423

Therm

LED

Pot/Pot+R

Switch

STR101-104

U1 should not be left unconnected. If no sensor will be used, connect U1 to M.

Tubing. Should be connected before the controller is mounted on the wall.

Air flow sensor, e.g. TAC GV

Fig. 3.3: Wiring of TAC Xenta 102-ES

3.2.2 Wiring of Xenta 102-ES, Application with Damper Control Only

Read Section 3.2.1, “General”, on page 24 before you connect the cables as shown in the wiring diagram in Fig. 3.3.

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