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Ekinex EK-EQ2-TP Applications Manual

Knx room temperature controller
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Summary of Contents for Ekinex EK-EQ2-TP

  • Page 1 Application manual KNX room temperature controller EK-EQ2-TP...
  • Page 2 Application manual KNX room temperature controller EK-EQ2-TP Index Foreword ................................6 1 General information ............................6 Function ..............................6 Main funcional features .......................... 6 Technical data ............................7 Design ..............................7 Delivery ..............................8 Accessories ............................8 Marks and certification ........................... 8 2 Installation ..............................
  • Page 3 Application manual KNX room temperature controller EK-EQ2-TP 7.3.1 Input X ............................27 7.3.2 Parameters and communication objects ..................27 External sensors (from bus) ......................... 31 7.4.1 Parameters and communication objects ..................31 Weighted temperature value ........................ 34 7.5.1 Parameters and communication objects ..................34 LCD-display ............................
  • Page 4 Application manual KNX room temperature controller EK-EQ2-TP 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 ..........................
  • Page 5 Logic functions AND, OR, EXOR, 4 inputs, 8 channels 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 support@ekinex.com. Release 3.00 - Updating: 27/06/2017 Application Manual © SBS S.p.A. - All rights reserved...

  • Page 6: General Information

    KNX room temperature controller EK-EQ2-TP 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.

  • Page 7: Technical Data

    Application manual KNX room temperature controller EK-EQ2-TP • temperature displaying (measured, setpoint, perceived and outdoor values in °C or °F), relative humidity (measured and setpoint values in %) and CO -concentration (in ‰, received from bus), alarms and errors (with alphanumeric codification);...
  • Page 8 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.

  • Page 9: Installation

    Application manual KNX room temperature controller EK-EQ2-TP 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.
  • Page 10 Application manual KNX room temperature controller EK-EQ2-TP • torque max 0.2 Nm – Connection of the device of the bus line Release 3.00 - Updating: 27/06/2017 Application Manual © SBS S.p.A. - All rights reserved Page 10...

  • Page 11: Configuration And Commissioning

    ETS4 (or later releases) and the ekinex APEKEQ2TP##.knxprod (## = release) application program that can be downloaded from the website www.ekinex.com. The application program allows the configuration of all working parameters for the device. The device-specific application program has to be loaded into ETS or, ®...
  • Page 12 Application manual KNX room temperature controller EK-EQ2-TP About EK-EQ2-TP General Internal sensors Inputs External sensors (from bus) LCD display Temperature control Relative humidity control Comfort Energy saving Other items may appear depending on the choices done for the parameters in the several folders.
  • Page 13 Application manual KNX room temperature controller EK-EQ2-TP 3.2 Commissioning For the commissioning the device is provided on the front side (in the area usually occupied by the rockers) with: • a red LED (1) for indication of the active operating mode (LED on = programming, LED off = normal operation);...
  • Page 14 Application manual KNX room temperature controller EK-EQ2-TP Example of displaying the physical address 10.5.43 (device nr. 43, installed on the line 5 of the area 10) and the firmware release 001 To exit from the physical address displaying press shortly (< 3 seconds) the  symbol on the lower rocker.

  • Page 15: User Interface

    Application manual KNX room temperature controller EK-EQ2-TP 4 User interface The user interface of the room temperature controller includes a LC-display, a pushbutton with two rockers and a series of freely programmable LEDs (4 for each rocker). The colour of the LEDs depend on the device version.

  • Page 16: Display Symbols

    Application manual KNX room temperature controller EK-EQ2-TP  operating mode (comfort / standby / economy / building protection);  seasonal mode (heating / cooling);  device status calling / not calling (or setpoint reached / not reached);  operation in manual mode (M);...
  • Page 17 The part number of the set EK-TSQ-Gxx-EP2 must be completed with the part (xx) that identifies the material, color and finishing; for the exact code please refer also to the latest edition of the ekinex product catalog or the website www.ekinex.com.

  • Page 18: Temperature Sensor

    Application manual KNX room temperature controller EK-EQ2-TP 5 Sensors The room temperature controller is equipped with three sensors: • temperature (1); • relative humidity (2). Position of the sensors: temperature (1), relative humidity (2). The temperature sensor (not to be seen in the drawing) is located under the plastic half-shell for the rockers’ mounting.

  • Page 19: Input Variables

    Application manual KNX room temperature controller EK-EQ2-TP 6 Input variables The data that the device usesin its control algorithms and /or to be displayed may come from: • the internal sensors; • sensors or digital signals connected to the two physical inputs of the device;...

  • Page 20: Application Program For Ets

    Application manual KNX room temperature controller EK-EQ2-TP 7 Application program for ETS In the following chapters there is the list of folder, parameters and communication objects of the application program. Some specific functions of the thermostat are described in more detail in the dedicated paragraphs.
  • Page 21 Application manual KNX room temperature controller EK-EQ2-TP www.ekinex.com info@ekinex.com General 7.1.1 The General folder includes the following parameters:  Device operation as  Temperature displayed unit  Default displayed information  Time to return to default display information  Button function level ...
  • Page 22 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values 00:00:04.000 hh:mm:ss:fff [range 00:00:04.000 … Delay after bus voltage recovery 00:10:55.350] Time interval after which the transmission of the telegrams on the bus starts after the power supply is restored. The delay affects both the event-driven transmission and the cyclic transmission of a telegram.

  • Page 23: Internal Sensors

    Application manual KNX room temperature controller EK-EQ2-TP 7.2 Internal sensors The Internal sensors folder includes the following parameters:  Temperature sensor  Relative humidity sensor Parameters 7.2.1 Parameter name Conditions Values enabled Temperature sensor disabled The temperature sensor is enabled as default.
  • Page 24 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values no sending Cyclic sending interval Temperature sensor = enabled [other values in the range 30 s … 120 min] not active Threshold 1 Temperature sensor = enabled below above Temperature sensor = enabled, Value [°C]...
  • Page 25 Application manual KNX room temperature controller EK-EQ2-TP Relative humidity sensor 7.2.3 The secondary folder Relative humidity sensor appears only if the corresponding sensor is enabled in the folder Internal sensors and includes the following parameters:  Filter type  Minimum change of value to send [%] ...
  • Page 26 Application manual KNX room temperature controller EK-EQ2-TP Comm. Object name Conditions Dim. Flags Obj. No. Relative humidity sensor = [5.001] Humidity value (1 byte) 1 Byte CR-T-- percentage enabled, (0..100%) Dimension of the C. O. = 1 byte Relative humidity sensor = [9.007]...
  • Page 27 Application manual KNX room temperature controller EK-EQ2-TP 7.3 Inputs The folder Inputs allows you to configurate one or two variables (either digital or analogic) depending on the digital signals or the temperature sensors connected to the terminal blocks of the inputs. The physical values or the detected states can be used locally by the device for temperature control functions and/or transmitted on the bus for other purposes.
  • Page 28 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values Input X = [AI] … medium Filter type high This parameter is always available when the input is configured as analogic. Low = average value every 4 measurements Medium = average value every 16 measurements High = average value every 64 measurements 0°C...
  • Page 29 Application manual KNX room temperature controller EK-EQ2-TP Comm. Object name Conditions Dim. Flags Obj. No. (from input 2) sensor If both inputs (1 and 2) are configured in the same way, only the first one is used by the device.
  • Page 30 Application manual KNX room temperature controller EK-EQ2-TP Comm. Object name Conditions Dim. Flags Obj. No. Input 2= [AI] … Temperature threshold 1 Threshold 1 = below or above, 1 Bit CR-T-- [1.001] switch sensor 2 - Switch Threshold 2 = below or above Input 2= [AI] …...
  • Page 31 Application manual KNX room temperature controller EK-EQ2-TP 7.4 External sensors (from bus) As “external sensors” are intended KNX-devices (or conventional sensors interfaced to the bus through KNX devices) which send states or values to the room temperature controller via the bus. Enabling an external sensor, without connecting the corresponding communication object, generates a permanent alarm on the display and suspends the thermoregulation function.
  • Page 32 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values Floor surface temperature disabled / enabled It enables a bus sensor for measuring the surface temperature of a floor heating system. The acquisition of the value allows to realize the function of surface temperature limitation.
  • Page 33 Application manual KNX room temperature controller EK-EQ2-TP Comm. Obj. Object name Conditions Dim. Flags [9.001] Outdoor temperature (from bus) enabled 2 Byte C-W--- temperature °C [9.008] parts/million Air quality (from bus) enabled 2 Byte C-W--- (ppm) [9.001] Coil temperature (from bus)
  • Page 34 2) from an external temperature sensor connected to a device input configured as analogic (Inputs  Input 1 or 2 = [AI] room temperature sensor); 3) via bus from another KNX device, e.g. from an ekinex pushbutton (External sensors (from bus)  Room temperature = enabled);...
  • Page 35 Application manual KNX room temperature controller EK-EQ2-TP To optimize or correct the room temperature regulation in special cases (in large rooms, in presence of strong asymmetry of the temperature distribution, when the installation of the device is in a position not suitable, etc.), the device can then use a weighted average between two temperature values.
  • Page 36 Application manual KNX room temperature controller EK-EQ2-TP 7.6 LCD-display The folder LCD display includes the following parameters:  Backlight intensity  Automatic backlight dimming  Energy saving  Visualisation type  Time before energy saving mode  Backlight when in energy saving mode ...
  • Page 37 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values off / 2% / 5% / 10% / Backlight when in energy saving mode Energy saving = enabled 15% / 20% / 25% / 30% backlight only Behaviour on button press...
  • Page 38 Application manual KNX room temperature controller EK-EQ2-TP 7.7 Leds Each pushbutton channel has four programmable leds; for example, for status feedback of the controlled loads or for orientation nightlight. The light emitted by the leds is diffused by means of an appropriate lightguide.
  • Page 39 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values fixed Led second colour XY when contact close status from bus X = 1, 2; Y= A, B 00:00:02:00 Off delay [other values in the range 00:00:00:00 … 01.49.13:50] Value in hh:mm:ss:ff.

  • Page 40: Temperature Control

    Application manual KNX room temperature controller EK-EQ2-TP 7.8 Temperature control The Temperature control folder includes the following secondary folders:  Settings  Heating  Cooling  Ventilation  Scenes The Cooling and Ventilation secondary folders appear only if in the Settings folder the parameter Thermostat function is set to the value both heating and cooling or cooling.
  • Page 41 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values no sending Setpoint cyclic sending interval [other values in the range 30 s … 120 min] The setpoint value that can be sent cyclically is the actual one, depending on the operating mode set manually by the user or automatically by another KNX supervising device with the possibility of time scheduling.
  • Page 42 Application manual KNX room temperature controller EK-EQ2-TP Comm. Nome oggetto Conditions Dim. Flags Obj. Thermostat function = both heating and cooling; Heating/cooling status in 1 Bit C-W--- [1.100] heating/cooling Heating – cooling switchover = from The communication object is received by the bus. All’evento di commutazione i regolatori interni degli stadi primario e ausiliario (se abilitato) commutano il modo di conduzione.
  • Page 43 Application manual KNX room temperature controller EK-EQ2-TP About the heating/cooling terminals The application functions of the room temperature controller configurable with ETS are particularly suitable for the control through general-purpose or dedicated KNX actuators of the following heating/cooling terminals: •...
  • Page 44 Application manual KNX room temperature controller EK-EQ2-TP Neutral zone and example of setpoint values correctly distributed Until the actual (measured) temperature is located below the setpoint value for the heating, the operation is heating; in the same way, if the actual value (measured) is greater than the setpoint value for the cooling, the mode is cooling.
  • Page 45 Application manual KNX room temperature controller EK-EQ2-TP communication objects (from now on: C.O.) also allow to perform the same modifications remotely, for example from a supervisor software. 55 – Manual setpoint [9.001 temperature] 52 – Actual setpoint [9.001 temperature] 56 – Manual/forced setpoint active status [1.011...
  • Page 46 Application manual KNX room temperature controller EK-EQ2-TP The communication objects 53 – HVAC manual mode and 54 – HVAC chrono active status are available only if the room thermostat has the parameter Device operation as in the General folder set as stand-alone/chrono.
  • Page 47 Application manual KNX room temperature controller EK-EQ2-TP Heating 7.8.2 The Heating folder includes the following parameters:  Comfort temp. setpoint [°C]  Standby temperature setpoint [°C]  Economy temp. setpoint [°C]  Building protection temp. setpoint [°C]  Heating type ...
  • Page 48 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values radiators elettric Heating type fan-coils floor radiant panels ceiling radiant panels It defines the terminal used for the thermal exchange in the room. The choice affects the parameters of the PWM control algorithm (Proportional band and Integral time) and the control options.
  • Page 49 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values Heating type = floor radiant panels, Inputs  Input 1 or Input 2 = [AI] floor surface temperature sensor Floor temperature limitation disabled / enabled External sensors  Floor surface...
  • Page 50 Application manual KNX room temperature controller EK-EQ2-TP Comm. Object name Conditions Dim. Flags Obj. Economy setpoint (heating) 2 Byte CRWTU- [9.001] temperature (°C) Building protection setpoint 2 Byte CRWTU- [9.001] temperature (°C) (heating) Control type = 2 Heating out command...
  • Page 51 Application manual KNX room temperature controller EK-EQ2-TP on the hydraulic mixing group), while in the case of electrical power this device is not usable and it is common practice to realize a temperature limitation with a surface temperature sensor connected to the device.
  • Page 52 Application manual KNX room temperature controller EK-EQ2-TP Cooling 7.8.3 The Cooling folder includes the following parameters:  Comfort temp. setpoint [°C]  Standby temperature setpoint [°C]  Economy temp. setpoint [°C]  Building protection temp. setpoint [°C]  Cooling type ...
  • Page 53 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values 2 point hysteresis Command communication object = Control type PWM (pulse width modulation) separated continuous If in Settings the parameter Thermostat function = both heating and cooling and Command communication object = unique, the parameter Control type is bound to the choice done for Heating.
  • Page 54 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values Cooling type = floor radiant panels or 14°C ceiling radiant panels, [other values in the range 14,5°C … Flow temperature (project) External sensors (from bus)  Flow 20°C] temperature = disabled It appears only if the flow temperature of an external sensor (from bus) is not available.
  • Page 55 Application manual KNX room temperature controller EK-EQ2-TP Comm. Object name Conditions Dim. Flags Obj. Auxiliary cooling = enabled, Auxiliary cooling disable 1 Bit C-W--- [1.003] enable Disabled from bus = At least one Anticondensation alarm anticondensation 1 Bit CR-T-- [1.005] alarm...
  • Page 56 Application manual KNX room temperature controller EK-EQ2-TP Active Anticondensation protection Software protection that provides for the sending on the bus of the dew point with sending on the bus the calculated by the room temperature controller using the temperature and relative...
  • Page 57 Application manual KNX room temperature controller EK-EQ2-TP Main and auxiliary ventilation 7.8.4 The Ventilation folder includes the following parameters:  Control type  Threshold first speed [0,1 K]  Threshold second speed [0,1 K]  Threshold third speed [0,1 K] ...
  • Page 58 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values Threshold third speed [0,1 K] Control type = 3 speeds [range 0 … 255] The value is represented in tenths of Kelvin degrees. If the parameter Thermostat function = both heating and cooling, the threshold value is valid for both seasonal modes.
  • Page 59 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values 0,5 K Antistratification function = [other values in the range 0,2 … 3 Hysteresis enabled no / yes Disable ventilation from bus not inverted Disable ventilation from bus =...
  • Page 60 Application manual KNX room temperature controller EK-EQ2-TP Delayed fan start (“hot-start”) function 7.8.4.2 This function is used in case the fan forces in the room air passing through a heat exchange coil (as in the case of the terminals to the fan-coil). In the heating mode of operation, to avoid possible discomfort caused by the dispatch of cold air in the room, the room temperature controller does not start the fan until the fluid has not reached a sufficiently high temperature.
  • Page 61 Application manual KNX room temperature controller EK-EQ2-TP The Ventilation folder, that is unique, configures a main or a auxiliary stage depending on the settings choosed in the Heating and Cooling folders. Similarly, the display interface will act on manual / automatic and manual forcing of the only fan-coil.
  • Page 62 Application manual KNX room temperature controller EK-EQ2-TP The C.O. 77 – Fan manual status allows to evaluate the actual fan speed; the C.O. 78 – Fan manual active status contains the information about automatic (=0, not active) or manual (=1, active) operating mode. By modifying the C.O.
  • Page 63 The folder allows the scenes configuration (up to 8), assigning to each one an identification number and the operating mode to be activated when recalled (e.g. with an ekinex pushbutton or another KNX device with this function). If Learning mode = enabled, receiving a telegram of scene storage determines the association of the scene to the operating mode currently set on the device.
  • Page 64 Application manual KNX room temperature controller EK-EQ2-TP Comm. Obj. Object name Conditions Dim. Flags [17.001] scene number HVAC scene number 1 Byte C-W--- [18.001] scene control It stores or recalls a scenario. The six least significant bits (0 to 5) in the byte of the code represent the number of the scene, while the most significant bit (7) is the operation code (1 = stores, 0 = recalls).
  • Page 65 Application manual KNX room temperature controller EK-EQ2-TP 7.9 Relative humidity control The Relative humidity control folder includes the following secondary folders:  Dehumidification  Humidification The Dehumidification and Humidification secondary folders appear only if a relative humidity sensor is enabled. The acquisition of relative humidity of the room can be done in two ways: through the integrated R.H.
  • Page 66 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values Dehumidification function different than Humidity setpoint [%] [range 30 … 60] disabled 0,8 % Dehumidification function different than Humidity hysteresis [other values in the range 0,5… 4%] disabled Subordinated to temperature control no / yes Parameter only for cooling.

  • Page 67: Parameters And Communication Objects

    Application manual KNX room temperature controller EK-EQ2-TP Humidification 7.9.2 The Humidification secondary folder includes the following parameters:  Humidification function  Humidity setpoint [%]  Humidity hysteresis [%]  Cyclic sending interval  Enable humidification from bus  Signal from bus Parameters and communication objects 7.9.2.1...
  • Page 68 Application manual KNX room temperature controller EK-EQ2-TP 7.10 Comfort The Comfort folder includes the following secondary folders:  Comfort area  Calculated psychrometric values The Comfort area and Calculated psychrometric values secondary folders appear only if a temperature sensor and a relative humidity sensor are enabled either in the Internal sensors folder or the External sensors (from bus) folder.
  • Page 69 Application manual KNX room temperature controller EK-EQ2-TP About the comfort area You can check whether the temperature and relative humidity values measured in a room are in or out of an area of climatic comfort defined by the parameters of the dedicated folder and send the corresponding information on the bus.The area of comfort may be defined for example:...
  • Page 70 Application manual KNX room temperature controller EK-EQ2-TP Parameter name Conditions Values Temperature to send if no request [°C] Dew point temperature = enabled [range -10 … 10] If the device is not calling (or the setpoint is not reached), sending a very low value (e.g.

  • Page 71: Energy Saving

    Application manual KNX room temperature controller EK-EQ2-TP 7.11 Energy saving In order to realise energy-saving functions, window contacts (to detect the opening of windows or doors), presence and movement sensors and card holders can be used. The Energy saving folder includes the following secondary folders: ...
  • Page 72 Absence time to switch HVAC mode For this function only use external sensors (from bus) can be used, such as the ekinex EK-SM2-TP movement sensor or the ekinex EK-DX2-TP (X = B, C, D, E) presence sensor. The following condition has to be true: External sensors (from bus) ...

  • Page 73: Card Holder

    Application manual KNX room temperature controller EK-EQ2-TP 7.11.3 Card holder The Card holder secondary folder appears only if the corresponding sensor is enabled i.e. if one of the two mutually esclusive conditions is true: 1) Inputs  Input1 or Input 2 = [DI] card holder contact sensor or 2) External sensors (from bus) ...
  • Page 74 Application manual KNX room temperature controller EK-EQ2-TP About the card holder function The information of card insertion (removal) in (from) a card holder allows you to directly control the temperature by means of the room thermostat, while sending the object value on the bus allows you to control other room functions with KNX (lighting, electrical loads, feedback status for the hotel reception, etc.)

  • Page 75: Additional Warnings

    Application manual KNX room temperature controller EK-EQ2-TP 7.12 Additional warnings In addition to the alarms listed in Chapter 10. Diagnostics, up to four external warnings can be configured. They are displayed by the symbol "Alarm triangle" and a three-digit coding (F01 ... F04). It is advisable to report to the user about the meaning of the warning configured in the ETS project.

  • Page 76: Logic Functions

    KNX room temperature controller EK-EQ2-TP 7.13 Logic functions The KNX room thermostat EK-EQ2-TP allows to use some useful logic functions (AND, OR, NOT and exclusive OR) in order to implement complex functions in the building automation system. You can configure: ...
  • Page 77 Application manual KNX room temperature controller EK-EQ2-TP Object name Conditions Dim. Flags Comm. Obj. No. Logic function X = enabled 104, 109, 114, 119, Logic function X – Input 1 1 Bit C-W-- [1.001] switch 124, 129, 134, 139 Logic object 1 = enabled...

  • Page 78: List Of Communication Objects

    Application manual KNX room temperature controller EK-EQ2-TP 8 List of communication objects Name Size Flags Datapoint Type Technical alarm 1 Bit [1.5] DPT_Alarm -WC--- Leds intensity percentage 1 Byte [5.1] DPT_Scaling -WC--- Temperature value 2 Bytes R-CT-- [9.1] DPT_Value_Temp Rocker 1 - Led first color A...
  • Page 79 Application manual KNX room temperature controller EK-EQ2-TP Name Size Flags Datapoint Type Room temperature (from bus) 2 Bytes [9.1] DPT_Value_Temp -WC--- Humidity (2 bytes, from bus) 2 Bytes [9.7] DPT_Value_Humidity -WC--- Humidity (1 byte, from bus) 1 Byte [5.1] DPT_Scaling...
  • Page 80 Application manual KNX room temperature controller EK-EQ2-TP Name Size Flags Datapoint Type Fan continuous speed 1 Byte R-CT-- [5.1] DPT_Scaling Fan speed 1 1 Bit R-CT-- [1.1] DPT_Switch Fan speed 2 1 Bit R-CT-- [1.1] DPT_Switch Fan speed 3 1 Bit R-CT-- [1.1] DPT_Switch...
  • Page 81 Application manual KNX room temperature controller EK-EQ2-TP 9 Regulation algorithms The picture below shows the components of a common generic control system for room temperature. The room temperature controller measures the actual temperature (T ) of the air mass and constantly compares...
  • Page 82 Application manual KNX room temperature controller EK-EQ2-TP heating, the first one being the level (T – ΔT ), below which the device activates the system, whereas hysteresis the second one is the desired temperature (T ), above which the heating system is deactivated.
  • Page 83 Application manual KNX room temperature controller EK-EQ2-TP Cooling type = floor radiant panels or ceiling radiant panels it is possible to select the position of the hysteresis according to the second method described, i.e. with upper hysteresis for heating and lower hysteresis for cooling.
  • Page 84 Application manual KNX room temperature controller EK-EQ2-TP Wide proportional band 100% Tight proportional band T room [°C] T Setpoint Wide proportional band 100% Tight proportional band T room [°C] T Setpoint The integral time is the time required to repeat the value of the control variable of a purely proportional regulator, when the error remains constant in time.
  • Page 85 Application manual KNX room temperature controller EK-EQ2-TP Cycle period T ON T OFF Time [min] T ON = T OFF T average ON = 50% Time [min] T ON = ½ T OFF T average ON = 25% Time [min] This type of control is well suited for use with ON / OFF actuators, such as electrothermal actuators and drives for zone valves, which are less expensive than proportional actuators.
  • Page 86 Application manual KNX room temperature controller EK-EQ2-TP Fan-coil with ON-OFF fan speed control 9.1.1.4 This type of fan-coil control is similar to the 2 points control with hysteresis analyzed in the previous section: the fan speed is activated / deactivated according to the difference between the desired temperature (T and the measured temperature (T ).
  • Page 87 Application manual KNX room temperature controller EK-EQ2-TP The parameter of the application program ETS Speed control hysteresis represents the hysteresis value shared by all the speed stages and unified for heating and cooling. As regards the shut-off valve of the water coil (2 pipe configuration) or the shut-off valve of the water battery for heating (4 pipe system), it can be used an algorithm with 2 points hysteresis that works with the same - T...
  • Page 88 Application manual KNX room temperature controller EK-EQ2-TP Operation = temperature dependent the ventilation handled manually by the user will be anyway interrupted when the desired conditions are achieved. The communication between the controller and the actuator can be made indifferently either via the communication objects of type [1.1] DPT_Switch (168-169-170, Speed 1-2-3 fan) or a single object [5.1]...
  • Page 89 Application manual KNX room temperature controller EK-EQ2-TP The Continuous speed fan (167) communication object, with 1 Byte size, varies in a continuous way according to the characteristic illustrated in the figure. See also the previous section to evaluate differences with the 1-2-3 fan speed mode, in which instead the same communication object assumes discrete values.
  • Page 90 Application manual KNX room temperature controller EK-EQ2-TP 2 points control with hysteresis for auxiliary stage 9.1.1.6 The systems for heating and cooling have different values of inertia depending on the type of transfer of thermal energy. To shorten the time necessary to reach the comfort conditions, a low inertia heating / cooling...
  • Page 91 Application manual KNX room temperature controller EK-EQ2-TP TOffset TOffset VEL3 VEL3 Threshold Speed3 Threshold Speed3 (T room – T set) (T set – T room) VEL2 VEL2 Threshold Speed2 Threshold Speed2 VEL1 VEL1 hysteresis hysteresis Threshold Speed1 Threshold Speed1 T room...
  • Page 92 Application manual KNX room temperature controller EK-EQ2-TP 10 Diagnostics Alarm code Cause Surface temperature limit is exceeded Formation of condensation Thermal generator lock Alarm 1 (from bus) Alarm 2 (from bus) Alarm 3 (from bus) Alarm 4 (from bus) Error code...

  • Page 93: Other Information

    • The instruction sheet must be delivered to the end customer with the project documentation ® • For further information on the product, please contact the ekinex technical support at the e-mail address: support@ekinex.com or visit the website www.ekinex.com ®...

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