Ekinex Ek-eq2-tp- series Instructions for use

Application manual

KNX room temperature controller

EK-EQ2-TP

Application manual

KNX room temperature controller EK-EQ2-TP

Release 3.00 - Updating: 27/06/2017 Application Manual

Index

Foreword.............................................................................................................................................................6

1General information .......................................................................................................................................6

1.1 Function .................................................................................................................................................6

1.2 Main funcional features..........................................................................................................................6

1.3 Technical data ........................................................................................................................................7

1.4 Design ....................................................................................................................................................7

1.5 Delivery ..................................................................................................................................................8

1.6 Accessories............................................................................................................................................8

1.7 Marks and certification ...........................................................................................................................8

2Installation......................................................................................................................................................9

2.1 Connection.............................................................................................................................................9

2.1.1 Connection of the bus line..............................................................................................................9

2.1.2 Connection of the inputs ................................................................................................................9

3Configuration and commissioning ...............................................................................................................11

3.1 Configuration........................................................................................................................................11

3.1.1 Tree structure of the application program ....................................................................................11

3.1.2 Languages of the application program.........................................................................................12

3.2 Commissioning ....................................................................................................................................13

3.2.1 Displaying physical address and firmware release ......................................................................13

4User interface ..............................................................................................................................................15

4.1 LCD-display .........................................................................................................................................15

4.1.1 Information displaying ..................................................................................................................15

4.1.2 Segment test ................................................................................................................................16

4.1.3 Backlight.......................................................................................................................................17

4.2 Rockers................................................................................................................................................17

5Sensors........................................................................................................................................................18

5.1 Temperature sensor .............................................................................................................................18

5.2 Relative humidity sensor......................................................................................................................18

6Input variables .............................................................................................................................................19

7Application program for ETS .......................................................................................................................20

7.1 About EK-EQ2-TP................................................................................................................................20

7.1.1 General.........................................................................................................................................21

7.1.2 Parameters...................................................................................................................................21

7.2 Internal sensors ...................................................................................................................................23

7.2.1 Parameters...................................................................................................................................23

7.2.2 Temperature sensor .....................................................................................................................23

7.2.2.1 Parameters and communication objects................................................................... 23

7.2.3 Relative humidity sensor ..............................................................................................................25

7.2.3.1 Parameters and communication objects................................................................... 25

7.3 Inputs ...................................................................................................................................................27

Application manual

KNX room temperature controller EK-EQ2-TP

Release 3.00 - Updating: 27/06/2017 Application Manual

7.3.1 Input X ..........................................................................................................................................27

7.3.2 Parameters and communication objects......................................................................................27

7.4 External sensors (from bus).................................................................................................................31

7.4.1 Parameters and communication objects......................................................................................31

7.5 Weighted temperature value................................................................................................................34

7.5.1 Parameters and communication objects......................................................................................34

7.6 LCD-display .........................................................................................................................................36

7.6.1 Parameters...................................................................................................................................36

7.7 Leds .....................................................................................................................................................38

7.7.1 Parameters and communication objects......................................................................................38

7.8 Temperature control .............................................................................................................................40

7.8.1 Settings ........................................................................................................................................40

7.8.1.1 Parameters and communication objects................................................................... 40

7.8.1.2 Heating/cooling switchover ....................................................................................... 43

7.8.1.3 Valve protection function ........................................................................................... 44

7.8.1.4 Remote Setpoint modification ................................................................................... 44

7.8.1.5 Remote operative mode modification ....................................................................... 45

7.8.2 Heating .........................................................................................................................................47

7.8.2.1 Parameters and communication objects................................................................... 47

7.8.3 Cooling .........................................................................................................................................52

7.8.3.1 Parameters and communication objects................................................................... 52

7.8.4 Main and auxiliary ventilation .......................................................................................................57

7.8.4.1 Parameters and communication objects................................................................... 57

7.8.4.2 Delayed fan start (“hot-start”) function ...................................................................... 60

7.8.4.3 Antistratification function ........................................................................................... 60

7.8.4.4 2-stage configuration with fan-coils as auxiliary stage.............................................. 60

7.8.4.5 Remote fan speed modification................................................................................. 61

7.8.5 Scenes .........................................................................................................................................63

7.8.5.1 Parameters and communication objects................................................................... 63

7.9 Relative humidity control......................................................................................................................65

7.9.1 Dehumidification...........................................................................................................................65

7.9.1.1 Parameters and communication objects................................................................... 65

7.9.2 Humidification...............................................................................................................................67

7.9.2.1 Parameters and communication objects................................................................... 67

7.10 Comfort ................................................................................................................................................68

7.10.1 Comfort area ................................................................................................................................68

7.10.1.1 Parameters and communication objects................................................................... 68

7.10.2 Calculated psychrometric values .................................................................................................69

7.10.2.1 Parameters and communication objects................................................................... 69

7.11 Energy saving ......................................................................................................................................71

Application manual

KNX room temperature controller EK-EQ2-TP

Release 3.00 - Updating: 27/06/2017 Application Manual

7.11.1 Window contacts ..........................................................................................................................71

7.11.1.1 Parameters and communication objects................................................................... 71

7.11.2 Presence sensors ........................................................................................................................72

7.11.2.1 Parameters and communication objects................................................................... 72

7.11.3 Card holder...................................................................................................................................73

7.11.3.1 Parameters and communication objects................................................................... 73

7.12 Additional warnings..............................................................................................................................75

7.13 Logic functions .....................................................................................................................................76

7.13.1 Parameters and communication objects......................................................................................76

8List of communication objects .....................................................................................................................78

9Regulation algorithms..................................................................................................................................81

9.1.1.1 Two-point control with hysteresis .............................................................................. 81

9.1.1.2 Continuous Proportional-Integral control .................................................................. 83

9.1.1.3 PWM Proportional-Integral control ............................................................................ 84

9.1.1.4 Fan-coil with ON-OFF fan speed control .................................................................. 86

9.1.1.5 Fan-coil with continuous speed control ..................................................................... 88

9.1.1.6 2 points control with hysteresis for auxiliary stage.................................................... 90

9.1.1.7 Auxiliary stage with fan-coil....................................................................................... 90

10 Diagnostics ..................................................................................................................................................92

11 Warnings......................................................................................................................................................93

12 Other information.........................................................................................................................................93

Application manual

KNX room temperature controller EK-EQ2-TP

Release 3.00 - Updating: 27/06/2017 Application Manual

Revision

Updating

Date

3.00

ETS application version: VER 3.00.

Modified and/or added features:

Communication object 101 Building protection HVAC mode active

Communication object 102 Fan manual speed percentage

Communication object 103 Fan manual speed off status

Brightness sensor and corresponding functionalities removed

27/06/2017

2.00

ETS application version: VER 2.00.

Modified and/or added features:

Heating/cooling status out and Heating/cooling status in communication objects (more enhanced

management)

Communication objects for operating modes’ remote control, setpoint temperature and auto/manual

mode of fan

Logic functions AND, OR, EXOR, 4 inputs, 8 channels

20/06/2016

1.00

Emission

02/04/2015

The latest revision of the application manual is available at www.ekinex.com. For previous revisions, contact

the technical support at sup[email protected].

Application manual

KNX room temperature controller EK-EQ2-TP

Release 3.00 - Updating: 27/06/2017 Application Manual

Foreword

The present document describes the ekinex® KNX room temperature controller with LC-display (EK-EQ2-TP

version).

1 General information

The device described in the present document works as an electronic digital temperature controller for a

room or a zone (consisting e.g. in a group of rooms or a whole floor) of a building and is part of the

secundary regulation for heating and cooling. The room temperature controller has been developed

according to the KNX standard for use in systems of control of homes and buildings.

Through the integrated sensors, the device can measure directly in the room the temperature and relative

humidity values that can be used for control and regulation tasks of heating, cooling and ventilation. Via the

bus the device can furthermore receive temperature, relative humidity and CO2-concentration values from

other bus devices. The integrated display visualizes a series of information concerning the room controller

function. The device is provided with two rockers that can be used for controlling the thermostat function.

The two physical inputs may be configured independently as analogic or digital and allow to extend the basic

functions, optimizing comfort, safety and energy savings depending on the user or building needs. The

device can furthermore report whether the room or zone is in a thermal comfort field configurable according

to the building use, the activities done and other specific factors.

1.1 Function

The main function of the device is to control the temperature of the air mass of the room by means of the

actual temperature (Teff), measured by the device itself or received by the bus, and of the setpoint

temperature (Tset) set by the user; comparing the two values and a series of parameters set before the

commissioning, the regulation algorithm of the device calculates the control variable value that is converted

to a telegram and transmitted on the bus toward KNX actuators (such as binary outputs, fan-coli controllers,

valve drives, etc.) able to control the operation of heating and cooling terminal units.

1.2 Main funcional features

The main functions carried out by the device are:

•temperature and relative humidity measuring through the integrated sensors with possibility of

sending the values on the bus;

•2-points (on/off) or proportional (PWM or continuous) room temperature regulation;

•ventilation control with continuous or 3-speed regulation;

•relative humidity control both in humidification and dehumidification;

•seasonal modes: heating and cooling with local or via bus switch-over;

•operating modes: comfort, standby, economy and building protection with separate setpoint values

for heating and cooling;

•manual or automatic control of a fan-coil unit with 2-pipes or 4-pipes connection

•automatic switching of the operating mode when presence/absence of people or window opening is

detected;

•weighted average of two temperature values;

Application manual

KNX room temperature controller EK-EQ2-TP

Release 3.00 - Updating: 27/06/2017 Application Manual

•temperature displaying (measured, setpoint, perceived and outdoor values in °C or °F), relative

humidity (measured and setpoint values in %) and CO2-concentration (in ‰, received from bus),

alarms and errors (with alphanumeric codification);

•signaling opening windows;

•calculation of psychrometric values (dew-point temperature and perceived temperature) with

possibility of sending the values on the bus;

•limitation of the surface temperature for floor heating radiant panels;

•anticondensation protection for floor and ceiling cooling radiant panels;

•antistratification function;

•delayed fan start (“hot-start” function) time-scheduled or depending on the conveying fluid

temperature measured at the coil battery;

•sending on the bus of the condition internal or external from the area of comfort (configurable).

1.3 Technical data

Feature

Valore

Device

KNX S-mode bus device

Communication

according KNX TP1 standard

Use

dry internal rooms

Environmental conditions

• Operating temperature: - 5 ... + 45°C

• Storage temperature: - 25 ... + 55°C

• Transport temperature: - 25 ... + 70°C

• Relative hunidity: 95% not condensating

Power supply

SELV 30 Vdc from bus KNX (auxiliary power supply not necessary)

Current consumption from bus

< 13 mA

Elementi di comando

2-fold pushbutton for direct access to 4 funzioni indipendenti mediante pressione breve (< 5 s)

e indiretto ad altre funzioni mediante pressione prolungata (> 5 s)

Programming elements

1 pushbutton and 1 LED (red) on the front side

Display elements

1 backlighted LC-display, 8 LED (4 for each rocker)

Temperature sensor

1 integrated NTC-type

R.H. sensor

1 integrated

Accessories

2 square (40x40 mm) rockers and a square frame of the flank or form series (to be ordered

separately) - ‘NF (No Frame versions) do not require any frame

Installation

On round or square wall-mounting box with disatnce between fixing holes of 60 mm

Connection

• bus: black/red KNX terminal block

• inputs: screw terminal blocks

Protection degree

IP20

Dimensions (WxHxD)

82 x 75 x 35 mm

1.4 Design

The device is realised for wall-mounting on round or square wall box with distance between fixing holes of 60

mm. The programming pushbutton and the programming led are on the front side under the rockers. On the

rear side of the housing there is the 4-pole terminal block for the connection of the 2 inputs and the terminal

block for the connection of the bus.

Application manual

KNX room temperature controller EK-EQ2-TP

Release 3.00 - Updating: 27/06/2017 Application Manual

Device: front and side sights

1.5 Delivery

The delivery includes a device, the terminal block for the connection of the bus, the screws (2 pairs) and the

metallic support for mounting on the wall box. The packaging inlcludes also the device instructions.

1.6 Accessories

The device is completed with a set of two square 40x40 mm rockers and a square frame of the form (EK-

FOQ-...) or flank (EK-FLQ-...) series that have to be ordered separately. The ‘NF (No Frame) version does

not require any frame (see also the following table). Temperature sensors and other devices to be connected

to the inputs must be ordered separately.

Code

Version

LED colours

Device housing

Accessories

EK-EQ2-TP

with frame

blue / green

black plastic

set rockers EK-TSQ-G...-EP2 and square

frame of form (EK-FOQ-...)

or flank (EK-FLQ-...) series

EK-EQ2-TP-RW

white / red

EK-EQ2-TP-BG-NF

‘NF (without

frame)

blue / green

set rockers EK-TSQ-G...-EP2

EK-EQ2-TP-RW-NF

white / red

EK-EQ2-TP-BG-NFW

blue / green

white plastic

EK-EQ2-TP-RW-NFW

white / red

Accessories of the device: set of rockers and frames

1.7 Marks and certification

The KNX mark on the ekinex device ensures interoperability with the KNX devices of SBS and other

manufacturers installed on the same system bus system. The compliance with the applicable European

directives is indicated by the presence of the CE mark.

Application manual

KNX room temperature controller EK-EQ2-TP

Release 3.00 - Updating: 27/06/2017 Application Manual

2 Installation

The device has degree of protection IP20, and is therefore suitable for use in dry interior rooms. The

installation of the device requires the following steps:

a) fix the metallic support with the screws supplied on a wall box with distance between fixing holes of

60 mm. It is recommended to install the device at a height of 150 cm;

b) if required, snap a square frame of the form or flank series, inserting it from the rear of the device;

c) connect the sensors or the contacts required to the 4-poles screw terminal block on the rear of the

device;

d) insert the terminal for the bus (red/black), previously connected to the bus cable, in its slot on the

rear side. At this point it is recommended to carry out the commissioning of the device or at least the

download of the physical address;

e) install the device on the metallic support through the spring system, tightening then the two screws

f) requires also to tighten the screws included in the delivery. For mounting the device follow also the

indication TOP (arrow tip pointing up) on the rear side of the device;.

g) snap the two rockers onto the device for the operation of the room temperature controller.

The device can only be mounted on a round or square wall flush mounting box with 60 mm distance between

fixing holes. If necessary, the metallic support for mounting on the wall box can also be ordered separately.

2.1 Connection

For the operation the device has to be connected to the bus line and addressed, configured and

commissioned with ETS (Engineering Tool Software). The connection of one or two sensors to the inputs is

optional and must be defined by the planner of the bus system.

2.1.1 Connection of the bus line

The connection of the KNX bus line is made with the terminal block (red/black) included in delivery and

inserted into the slot of the housing.

Characteristics of the KNX terminal block

•spring clamping of conductors

•4 seats for conductors for each polarity

•terminal suitable for KNX bus cable with single-wire conductors and diameter between 0.6 and 0.8

•recommended wire stripping approx. 5 mm

•color codification: red = + (positive) bus conductor, black = − (negative) bus conductor

2.1.2 Connection of the inputs

The connection of the inputs is made with the screw terminals located at the rear side of the device. The

maximum cable length is 10 m. For the connection use a cable of max section 1,5 mm². The connection

cable must have sufficient length to allow the extraction of the device from the wall-mounting box.

Characteristics of the terminal blocks for the inputs

•screw clamping of conductors

•maximum cross section of conductor 1 mm² (multiwire)

•recommended wire stripping approx. 5 mm

Application manual

KNX room temperature controller EK-EQ2-TP

Release 3.00 - Updating: 27/06/2017 Application Manual

•torque max 0.2 Nm

Connection of the device of the bus line

KNX

bus

–

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