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Application manual 

 

 

KNX room temperature controller EK-EQ2-TP 

 
 

Release 3.00 - Updating: 27/06/2017 

 

Application Manual 

© SBS S.p.A. - All rights reserved 

 

Page 86 

9.1.1.4 

Fan-coil with ON-OFF fan speed control 

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

set

) 

and the measured temperature (T

room

). The relevant difference with the 2 points algorithm with hysteresis is 

that,  in  this  case,  there  is  not  a  single  stage  on  which  the  hysteresis  loop  is  executed,  by  setting  the 
thresholds for switching on and off of the speed, but three stages may exist (depending on the speed levels 
of the fan-coil). This means that a speed level corresponds to each stage and when the difference between 
the  measured  temperature  and  the  desired  temperature  causes  the  activation  of  a  further  speed,  before 
activating the new speed, the other two must be turned off to avoid any damage to the fan motor. 

 

 

 

 

 

The figure in the in the upper left graph refers to the speed control of the fan-coil with three operating stages 
as regards the heating. Looking at the graph, it has to be noted that for each stage there is a hysteresis loop, 
as well as at any speed are assigned two thresholds which determine the activation and deactivation. The 
thresholds are determined by the values set in the application program and can be summarized as follows: 

 

Speed 1 (1st stage) – The speed is turned ON when the value of the room temperature is lower than the 
value (T

Set

 – Threshold Speed1 – hysteresis) and turned OFF when the room temperature value reaches 

the value (T

Set

 – Threshold Speed1); the first speed is also switched OFF when a higher speed must be 

turned ON. The default value for the parameter Threshold Speed1 = 0 K 

 

Speed 2 (2nd stage) – The speed is turned ON when the value of the room temperature is lower than the 
value (T

Set

 – Threshold Speed2 – hysteresis) and turned OFF when the room temperature value reaches 

the  value  (T

Set

  –  Threshold  Speed2);  the  second  speed  is  also  switched  OFF  when  Speed3  must  be 

turned ON. 

 

Speed 3 (3rd stage) – The speed is turned ON when the value of the room temperature is lower than the 
value (T

Set

 – Threshold Speed3 – hysteresis) and turned OFF when the room temperature value reaches 

the value (T

Set

 – Threshold Speed3) 

Speed1

 

Tset

 

Speed2

 

Speed3

 

Hysteresis

 

T room

 

Tset

 

T room

 

Hysteresis

 

OFF

 

Speed1

 

Speed2

 

Speed3

 

OFF

 

Threshold Speed1

 

Threshold Speed2

 

Threshold Speed3

 

(T set 

– T room)

 

Threshold Speed1

 

Threshold Speed2

 

Threshold Speed3

 

(T room 

– T set)

 

T room

 

OFF

 

ON

 

Tset

 

Thysteresis

 

T room

 

OFF

 

ON

 

Tset

 

Thysteresis

 

Содержание EK-EQ2-TP- Series

Страница 1: ...Application manual KNX room temperature controller EK EQ2 TP ...

Страница 2: ...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 4 User 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 5 Sensors 18 5 1 Temperature sensor 18 5 2 Relative humidity sensor 18 6 Input variables 19 7 Applica...

Страница 3: ...te 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 sta...

Страница 4: ...s 73 7 12 Additional warnings 75 7 13 Logic functions 76 7 13 1 Parameters and communication objects 76 8 List of communication objects 78 9 Regulation 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 con...

Страница 5: ...d 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 ...

Страница 6: ...evice 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 temperatur...

Страница 7: ...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 pus...

Страница 8: ...rame 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 E...

Страница 9: ...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...

Страница 10: ...ion manual KNX room temperature controller EK EQ2 TP Release 3 00 Updating 27 06 2017 Application Manual SBS S p A All rights reserved Page 10 torque max 0 2 Nm Connection of the device of the bus line KNX bus ...

Страница 11: ...ined by the settings done via software The configuration requires necessarily 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 as alternative the whole...

Страница 12: ...ensors from bus LCD display Led Temperature control Relative humidity control Comfort Energy saving Other items may appear depending on the choices done for the parameters in the several folders 3 1 2 Languages of the application program The application program is available in four languages English Italian German and French The language displayed can be changed in ETS choosing Settings Presentati...

Страница 13: ...on download into the device the physical address and the configuration with the ETS program When downloading the application program the display shows PrOg and the flashing symbol of the clock At the end of the download the operation of the device automatically returns to normal mode in this mode the programming LED is turned off Now the bus device is programmed and ready for use 3 2 1 Displaying ...

Страница 14: ...cal 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 If you elapse of time interval set in parameter Time to exit change without saving without pressing any rocker the device returns automatically to the previously displayed information ...

Страница 15: ...ed pressure of various symbols other functions can be carried out 4 1 LCD display The device is provided with a LC display 1 with adjustable backlight that occupies a vertical area of approx 40 x 80 mm WxH in the left half of the device 4 1 1 Information displaying Depending on the configuration done with ETS the connections and the availability of information local or received from the bus the se...

Страница 16: ...ive device not calling or setpoint reached Per mille only for CO2 concentration Heating mode active device calling or setpoint not reached Alarm Manual operation M Window opening Slave operation subordinated to a supervising KNX device Carbon dioxide CO2 Cooling mode active device not calling or setpoint reached Indoor temperature Cooling mode active device calling or setpoint not reached Outdoor ...

Страница 17: ... press shortly 3 seconds the symbol either on the upper rocker Three rapid flashes of the digits indicate that the new value was saved If you elapse of time interval set in the Time to exit change without saving General folder without pressing any rocker the device returns to the previous situation 4 2 Rockers The pushbutton with two rockers integrated in the device controls the functions of the t...

Страница 18: ...ue can be corrected by means of a offset of 5 C or preferably can be used a weighted average between two values of temperature chosen from the following ones value measured by the integrated sensor value measured by a temperature sensor connected to one of the inputs of the device value received via bus from another KNX device such as ekinex pushbuttons 5 2 Relative humidity sensor The integrated ...

Страница 19: ...temperature sensor Room temperature other measurement height AI antistratification temperature sensor Floor surface temperature AI floor surface temperature sensor Outdoor temperature AI outdoor temperature sensor Further temperature value AI generic NTC temperature sensor Room temperature KNX bus through communication objects Object 34 2 bytes Room relative humidity Objects 35 2 bytes and 36 1 by...

Страница 20: ...llowing About EK EQ2 TP General Temperature sensor Internal sensors Inputs External sensors from bus LCD display Led Settings Heating Temperature control Relative humidity control Comfort Windows contacts Presence sensors Card holder Energy saving Other folders may appear depending on the choices done for the parameters of the folders represented in the main tree structure 7 1 About EK EQ2 TP The ...

Страница 21: ... supervisor HVAC modes setpont values etc Temperature displayed unit Celsius Fahrenheit Default displayed information actual temperature temperature setpoint The actual temperature is the value by which the device performs the temperature regulation It may be the value measured from a single sensor internal from the bus or from an input or the weighted average of the temperatures measured by a mai...

Страница 22: ...OR 8 channel 4 inputs for channel Information displayed as default One information between the actual temperature and the temperature setpoint is displayed preferably by the digits of the display The device allows you to retrieve and display a series of other information pressing the symbol on the upper rocker after the time set in the parameter Time to return to default information without furthe...

Страница 23: ...the sensor is disabled the functions that require the value of relative humidity are available only if you enable Relative humidity in the External sensors from bus folder When the sensor is enabled the corresponding folder appears in the main tree structure of the application program 7 2 2 Temperature sensor The Temperature sensor secondary folder appears only if the corresponding sensor is enabl...

Страница 24: ... no sending other values in the range 30 s 120 min Object name Conditions Dim Flags DPT Comm Obj No Temperature value Temperature sensor enabled 2 Bytes CR T 9 001 temperature C 3 Temperature threshold1 Switch Temperature sensor enabled Threshold 1 below or above 1 Bit CR T 1 001 switch 16 Temperature threshold 2 Switch Temperature sensor enabled Threshold 2 below or above 1 Bit CR T 1 001 switch ...

Страница 25: ...e every 16 measurements High average value every 64 measurements Minimum change of value to send Relative humidity sensor enabled 2 range 0 10 If the parameter is set to 0 zero no value is sent after a change Cyclic sending interval Relative humidity sensor enabled no sending other values in the range 30 s 120 min Threshold 1 Relative humidity sensor enabled not active below above Value Relative h...

Страница 26: ...dity sensor enabled Dimension of the C O 1 byte 1 Byte CR T 5 001 percentage 0 100 14 Humidity value 2 byte Relative humidity sensor enabled Dimension of the C O 2 Byte 2 Byte CR T 9 007 percentage 15 Temperature threshold 1 switch Relative humidity sensor enabled Threshold 1 below or above 1 Bit CR T 1 001 switch 18 Temperature threshold 2 switch Relative humidity sensor enabled Threshold 2 below...

Страница 27: ...ilter type Temperature offset Cyclic sending interval Minimum change of value to send K Threshold 1 Value C Threshold 2 Value C Hysteresis Cyclic sending interval 7 3 2 Parameters and communication objects Parameter name Conditions Values Input X disabled DI window contact sensor DI card holder contact sensor DI anticondensation sensor AI coil battery temperature sensor AI room temperature sensor ...

Страница 28: ... below above This parameter is always available when the input is configured as analogic Value C Input X AI Threshold 2 below or above 45 range 0 50 Hysteresis Input X AI Threshold 1 below or above Threshold 2 below or above 0 4 K other values in the range 0 2 K 3 K Cyclic sending interval Input X AI Threshold 1 below or above Threshold 2 below or above no sending other values in the range 30 s 12...

Страница 29: ...re sensor 2 Byte CR T 9 001 temperature C 23 If both inputs 1 and 2 are configured in the same way only the first one is used by the device Floor surface temperature sensor from input 1 Input 1 AI floor surface temperature sensor 2 Byte CR T 9 001 temperature C 20 Floor surface temperature sensor from input 2 Input 2 AI floor surface temperature sensor 2 Byte CR T 9 001 temperature C 23 If both in...

Страница 30: ...ts reserved Page 30 Object name Conditions Dim Flags DPT Comm Obj No Temperature threshold 1 sensor 2 Switch Input 2 AI Threshold 1 below or above Threshold 2 below or above 1 Bit CR T 1 001 switch 24 Temperature threshold 2 sensor 2 Switch Input 2 AI Threshold 1 below or above Threshold 2 below or above 1 Bit CR T 1 001 switch 25 ...

Страница 31: ...sensor The measured value can be used to calculate a weighted average value in combination with the temperature sensor integrated into the device or a temperature sensor connected to a device input Relative humidity Internal sensors Relative humidity sensor disabled disabled enabled It enables a relative humidity bus sensor to be used alternatively to the sensor integrated into the device Humidity...

Страница 32: ...ables a bus sensor for detecting the state of opening closing of a window or a door Window contact 2 disabled enabled It enables a bus sensor for detecting the state of opening closing of a window or a door Presence sensor 1 disabled enabled It enables a bus sensor for detecting the presence absence of people within a room Presence sensor 2 disabled enabled It enables a bus sensor for detecting th...

Страница 33: ... 001 switch 46 Windows contact sensor 1 from bus enabled 1 Bit C W 1 019 window door 43 Windows contact sensor 2 from bus enabled 1 Bit C W 1 019 window door 44 Presence sensor 1 from bus enabled 1 Bit C W 1 018 occupancy 32 Presence sensor 2 from bus enabled 1 Bit C W 1 018 occupancy 33 Contact of card holder from bus enabled 1 Bit C W 1 001 switch 45 About the sensor timeout The system of intern...

Страница 34: ...epend on enabling the internal sensor the inputs or the external sensors from bus Relative weight 100 main sensor 90 10 80 20 70 30 60 40 50 50 40 60 30 70 20 80 10 90 100 additional sensor Minimum change of value to send K 0 5 other values in the range 0 5 K If the parameter is set to 0 zero no value is sent at the change Cyclic sending interval no sending other values in the range 30 s 120 min O...

Страница 35: ...ect 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 The weights are assigned by the parameter Relative weight that assigns a ratio of the two values ...

Страница 36: ...klight The default backlight of the display can be configured according to the installation location and light conditions of the room The backlight intensity can be set to a fixed value in Information to be displayed The actual temperature is always displayed in addition and depending on individual preferences other information can be displayed in sequence the setpoint temperature for the current ...

Страница 37: ... rocker when the device is in energy saving mode Temperature setpoint At least one temperature sensor enabled internal external from bus from an input enable disabled Perceived temperature A temperature sensor and a relative humidity sensor enabled internal external from bus from an input enable disabled Relative humidity At least one relative humidity sensor enabled internal or external from bus ...

Страница 38: ...alues Leds intensity from bus no yes It enables receiving from the bus of the light intensity value emitted by the leds Leds intensity Leds intensity from bus no 50 range 0 100 It allows setting the light intensity value emitted by the leds if not received from the bus Led first colour XY fixed when contact close status from bus X 1 2 Y A B Off delay Led first colour XY when contact close 00 00 02...

Страница 39: ... on 1 s off Signal from bus Led second colour XY status from bus not inverted inverted Technical alarm disabled enabled It enables the communication object nr 0 Technical alarm that allows to activate an alarm signal via a bus telegram The flashing led indicates that the alarm condition is active Object name Conditions Dim Flags DPT Comm Obj No Technical alarm 1 Bit C W 1 005 alarm 0 Leds intensit...

Страница 40: ...The Settings folder includes the following parameters Thermostat function Command Communication Object Heating cooling switchover Setpoint Cyclic sending interval Max manual temperature change Saving timeout manual change End of manual operation Max setpoint temperature change Scenes Valve protection function Frequency Time interval 7 8 1 1 Parameters and communication objects Parameter name Condi...

Страница 41: ...he device automatically returns to the previous state without saving the change End of manual operation General Device operation as stand alone till first telegram from bus other values in the range 30 min 48 h Max setpoint temperature change not allowed 1 C 2 C 3 C 4 C 5 C 6 C 7 C 8 C 9 C 10 C It defines the maximum time allowed for changing the values of temperature setpoint in the several opera...

Страница 42: ...ugh this communication object can be later modified by the user in questo caso il termostato ambiente passa in controllo manuale HVAC forced mode in 1 Byte C W 20 102 HVAC mode 51 The communication object allows to receive the operating mode similarly to what happens with the communication object HVAC mode the difference is that the operating mode is received via this object with the exception of ...

Страница 43: ...ted number of room temperature controllers If the devices have been configured for this purpose the user does the switch over manually on the device that acts as a master for the switch over function the device sends on the bus the output communication object DPT 1 100 heat cool that switches possibly other room temperature controllers slave devices connected through a dedicated group address Auto...

Страница 44: ...ation objects indicated in the block diagram allows monitoring and modifying the current conduction mode forced on the temperature controller The object 48 Heating cooling status out is always exposed even when the thermostat function is set on heating or cooling only When the function is set on both heating and cooling the cyclic sending on bus can be enabled anyway the information about the actu...

Страница 45: ...ification The communication objects shown in figure allow to monitor the operating mode comfort standy economy and building protection modifications performed locally by the user when interacting with the LCD display and the touch buttons of the room thermostat or the operating mode forced by chrono program The communication objects from now on C O also allow to perform the same modifications remo...

Страница 46: ...ing 27 06 2017 Application Manual SBS S p A All rights reserved Page 46 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 i ...

Страница 47: ...ure limit C Hysteresis K Auxiliary heating Communication object Disabled from bus Offset from setpoint Hysteresis Cyclic sending interval Ventilation for auxiliary heating 7 8 2 1 Parameters and communication objects Conditions Settings Thermostat function heating or both heating and cooling Parameter name Conditions Values Comfort temp setpoint C 21 range 10 50 Standby temperature setpoint C 18 r...

Страница 48: ...0 s 120 min Min change of value to send Control type continuous 10 range 0 100 PWM cycle time Control type PWM 15 min range 5 240 min Proportional band 0 1 K Control type continuous or PWM range 0 255 The value is in tenths of Kelvin K degree The field contains a preset value that depend on the selected heating type the value can be modified radiators 50 5 K elettric 40 4 K fan coils 40 4 K floor ...

Страница 49: ...mperatures to lower values Per zone periferiche si intendono fasce situate generalmente lungo i muri dell ambiente rivolti verso l esterno dell edificio con larghezza massima di 1 m Hysteresis K Floor temperature limitation enabled 0 3 K other values in the range 0 2 K 3 K Before quitting from the alarm status the device waits until the surface temperature decreases under the threshold set offset ...

Страница 50: ...for zones of normal occupancy TSmax 35 C for peripheral zones of the rooms National standards may also limit these temperatures at lower values Peripheral zones are strips generally located along the external walls with a maximum width of 1 m The floor heating system electrically powered version involves the laying under the floor coating of an electric cable powered by the mains voltage 230 V or ...

Страница 51: ...g 27 06 2017 Application Manual SBS S p A All rights reserved Page 51 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 ...

Страница 52: ...sending interval Ventilation for auxiliary cooling Conditions Temperature control Settings Thermostat function cooling or both heating and cooling 7 8 3 1 Parameters and communication objects Parameter name Conditions Values Comfort temp setpoint C 23 range 10 50 Standby temperature setpoint C 26 range 10 50 For a correct operation of the device the standby temperature setpoint has to be comfort t...

Страница 53: ...ant panels 50 5 K ceiling radiant panels 50 5 K The value of the parameter Proportional band represents the max difference between the setpoint temperature and the measured temperature that causes the max control output Integral time min Control type continuous or PWM range 0 255 min The field contains a preset value that depend on the selected cooling type the value can be modified fan coils 90 m...

Страница 54: ...rough a telegram from a bus device with supervising function Offset from setpoint Auxiliary cooling enabled 0 2 K 0 3 K 0 4 K 0 5 0 6 K 0 8 K 1 K 1 5 K 2 K 2 5 K 3 K Hysteresis Auxiliary cooling enabled 0 2 K 0 3 K 0 4 K 0 5 0 6 K 0 8 K 1 K 1 5 K 2 K 2 5 K 3 K Cyclic sending interval Auxiliary cooling enabled hh mm ss 00 00 00 00 00 00 means that the cyclic sending is not enabled Ventilation for a...

Страница 55: ...the conveying fluid is modified This is a protection of the active type i e the action is intended to prevent the formation of condensation Nr Type Denominazione Description 1a Passive Anticondensation protection with sensor connected to a physical input of the device Hardware protection that closes the cooling circuit of the room or zone when condensation is detected by a sensor connected to an i...

Страница 56: ...case 1a of the table il collegamento del contatto di segnalazione to an input channel of another KNX device e g a pushbutton interface or a binary input External sensors from bus Anticondensation sensor enabled In this case the signal of the sensor is transmitted to the room temperature controller through the status of a communication object case 1b of the table If the comparison between the calcu...

Страница 57: ...oor radiant panels or ceiling radiant panels and Heating Ventilation Auxiliary heating enabled Cooling Type of cooling floor radiant panels or ceiling radiant panels and Cooling Ventilation for auxiliary enabled This way two types of installations can be controlled i fan coil terminals or ii radiant panels as main stage and fan coil terminals as auxiliary stage 7 8 4 1 Parameters and communication...

Страница 58: ... the temperature setpoint is reached if the parameter depending on the temperature the fan stops when the temperature setpoint is reached Hot start Thermostat function both heating and cooling Inputs Input X AI coil battery temperature sensor or External sensors from bus coil temperature enabled no yes For carrying out the function must be enabled a sensor for measuring the temperature of the heat...

Страница 59: ...allows prolonging the operation of the ventilator dissipating in the room the residual heat or cool present in battery for the thermal exchange The function is active in both seasonal modes heating and cooling Object name Conditions Dim Flags DPT Comm Obj No Fan continuous speed Control type continuous regulation 1 Byte CR T 5 001 percentage 0 100 71 Fan speed 1 Control type 1 2 o 3 speeds 1 Bit C...

Страница 60: ...e terminal 7 8 4 3 Antistratification function This function is used in the case of heating systems with thermal exchange of convective type for rooms with height and volume much higher than usual atriums fitness facility commercial buildings etc Because of the natural convection with warm air rising to the highest altitudes of the room the phenomenon of air stratification occurs with energy waste...

Страница 61: ...eating enabled 5 Auxiliary heating Communication object separated 6 Heating Ventilation for auxiliary heating enabled 7 Cooling Cooling type fancoils Important If the fan coil system has a 2 pipe hydraulic configuration the objects 163 Auxiliary heating output command 1 bit and 162 Cooling out command 1 byte have to be set in logical OR in the actuator for controlling the fan coil which in this ca...

Страница 62: ...t speed to return to automatic mode A the supervisor must exit from manual mode by modifying the C O 78 Fan manual active status 0 not active Accepted values for C O s 76 and 77 depend on the number of speeds set in ETS If Control Type parameter in Ventilation folder is 1 2 or 3 speeds C O s with DPT 5 010 counter accept the following values 0 OFF 1 speed 1 2 speed 2 if Control Type 1 speed 3 spee...

Страница 63: ...umber HVAC mode Activation delay Learning mode Condition Temperature control Settings Scenes enabled 7 8 5 1 Parameters and communication objects Parameter name Conditions Values Download overwrite disabled enabled If Overwrite download disabled at the download of the application on the device the operating modes previously stored are not overwritten If Overwrite download enabled at the download o...

Страница 64: ...served Page 64 Object name Conditions Dim Flags DPT Comm Obj No HVAC scene number 1 Byte C W 17 001 scene number 18 001 scene control 79 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 ...

Страница 65: ...ation through fans opening outlets to the outside opening windows with motorized actuators The control is done through threshold values use to control the temperature and humidity conditions of comfort in cooling systems with radiant panels and integration for the treatment of latent heat start of dedicated terminals without changing the flow temperature of the cooling water use for safe control o...

Страница 66: ...m bus no yes Signal from bus Enable dehumid control from bus yes not inverted inverted Object name Conditions Dim Flags DPT Comm Obj No Dehumidification command 1 Bit CR T 1 001 switch 84 Dehumidification control disable 1 Bit C W 1 002 boolean 85 Dehumidification water battery command 1 Bit C W 1 001 switch 86 The object ia enabled only if the system for temperature control is set to underfloor h...

Страница 67: ...ion disabled heating only cooling only both heating and cooling This parameter enables selectively the humidification function Humidity setpoint Humidification different than disabled 35 range 25 45 Humidity hysteresis 0 8 other values in the range 0 5 4 Cyclic sending interval no sending other values in the range 30 s 120 min Disable humidification from bus no yes Signal from bus Enable humidific...

Страница 68: ...ers Cyclic sending interval Minimum temperature C Maximum temperature C Minimum relative humidity Maximum relative humidity Max absolute humidity g kg x 0 1 7 10 1 1 Parameters and communication objects Parameter name Conditions Values Cyclic sending interval no sending other values in the range 30 s 120 min Minimum temperature C 20 range 0 50 Maximum temperature C 26 range 0 50 Minimum relative h...

Страница 69: ...d comfort area refers both to heating and cooling mode 7 10 2 Calculated psychrometric values The Calculated psychrometric values secondary folder includes the following parameters Dew point temperature Cyclic sending interval Min change of value to send K Temperature to send if no request C Perceived temperature C Cyclic sending interval Min change of value to send K Condition for displaying the ...

Страница 70: ...l Perceived temperature enabled no sending other values in the range 30 s 120 min Min change of value to send K Perceived temperature enabled Cyclic sending interval different than no sending 0 2 K no sending other values in the range 0 2 3 K Object name Conditions Dim Flags DPT Comm Obj No Dew point temperature Dew point temperature enabled 2 Byte CR T 9 001 temperature C 81 Perceived temperature...

Страница 71: ... four signals which are combined as a logic OR The Window contacts folder includes the following parameters Window contacts function Wait time to building protection mode 7 11 1 1 Parameters and communication objects Parameter name Conditions Values Window contacts function disabled enabled This parameter enables the window contact function Wait time to building protection mode Window contacts fun...

Страница 72: ... bus or Presence sensor 2 from bus enabled 7 11 2 1 Parameters and communication objects Parameter name Conditions Values Presence sensor function disabled enabled Parameter that enables the presence sensor function Presence sensors use Presence sensor function enabled comfort extension comfort limitation comfort extension and comfort limitation Thermostat modes Presence sensor function enabled Pr...

Страница 73: ...ndby economy This parameter defines to which operating mode the device should automatically switch inserting the card in the holder Activation delay on card insertion Card holder function enabled 00 00 00 hh mm ss range 00 00 00 18 12 15 Time interval before the automatic switching of the operating mode inserting the card in the holder On card removal switch HVAC mode to Card holder function enabl...

Страница 74: ...sponsible in accordance with the target of energy saving and level of service to be offered to the guests Conventional not KNX card holder With a conventional card holder the status card present or absent of a signal contact is detected through an input of the device configured as DI card holder contact sensor This way you can detect only the insertion and extraction of the card but it cannot be d...

Страница 75: ...the alarms listed in Chapter 10 Diagnostics managed automatically by the device for these warnings there is no control by timeout and therefore you do not need to set a cyclical sending Object name Conditions Dim Flags DPT Comm Obj No Alarm 1 from bus 1 Bit C W 1 005 alarm 95 It enables the configurable warning displayed by the symbol Triangle alarm and the code F01 Alarm 2 from bus 1 Bit C W 1 00...

Страница 76: ...ult The communicaton function representing the logic function output is sent on the bus on event of change alternatively a cyclic sending can be set 7 13 1 Parameters and communication objects The following condition has to be true General Logic functions enabled Parameter name Conditions Values Logic function disabled enabled Logic operation Logic function enabled OR AND XOR XOR eXclusive OR Dela...

Страница 77: ... 119 124 129 134 139 Logic function X Input 2 Logic function X enabled Logic object 2 enabled 1 Bit C W 1 001 switch 105 110 115 120 125 130 135 140 Logic function X Input 3 Logic function X enabled Logic object 3 enabled 1 Bit C W 1 001 switch 106 111 116 121 126 131 136 141 Logic function X Input 4 Logic function X enabled Logic object 4 enabled 1 Bit C W 1 001 switch 107 112 117 122 127 132 137...

Страница 78: ... sensor from input 1 2 Bytes R CT 9 1 DPT_Value_Temp 20 Floor surface temperature sensor from input 1 2 Bytes R CT 9 1 DPT_Value_Temp 20 Outdoor temperature sensor from input 1 2 Bytes R CT 9 1 DPT_Value_Temp 20 Temperature value sensor from input 1 2 Bytes R CT 9 1 DPT_Value_Temp 21 Temperature threshold 1 sensor 1 Switch 1 Bit R CT 1 1 DPT_Switch 22 Temperature threshold 2 sensor 1 Switch 1 Bit ...

Страница 79: ...te WC 20 102 DPT_HVACMode 52 Actual setpoint 2 Bytes R CT 9 1 DPT_Value_Temp 53 HVAC manual mode 1 Byte WCTU 20 102 DPT_HVACMode 54 Chrono active status 1 Bit R CT 1 11 DPT_State 55 Manual setpoint 2 Byte WC 9 1 DPT_Value_Temp 56 Manual forced setpoint active status 1 Bit RWCTU 1 11 DPT_State 57 Comfort setpoint heating 2 Bytes RWCTU 9 1 DPT_Value_Temp 58 Comfort setpoint cooling 2 Bytes RWCTU 9 1...

Страница 80: ..._Switch 88 Humidification command 1 Bit R CT 1 1 DPT_Switch 89 Humidification control disable 1 Bit WC 1 3 DPT_Enable 90 Temperature setpoint change lock 1 Bit WC 1 3 DPT_Enable 91 Manual mode lock 1 Bit WC 1 3 DPT_Enable 92 Anticondensation alarm 1 Bit R CT 1 5 DPT_Alarm 93 Rockers lock 1 Bit WC 1 2 DPT_Bool 94 Thermal generator lock 1 Bit WC 1 5 DPT_Alarm 95 Alarm from bus 1 1 Bit WC 1 5 DPT_Ala...

Страница 81: ...ffects on the system in order to change the control action on the same entity 9 1 1 1 Two point control with hysteresis This control algorithm which is also known as On Off is the most classic and popular The control provides for the on off switching of the system following a hysteresis loop i e two threshold levels are considered for the switching instead of a single one Heating mode When the mea...

Страница 82: ... level of deviation from the desired condition that the user is willing to accept during the running of the system Heating mode When the measured temperature is lower than the value Tset the device activates the heating system by sending a KNX telegram to the actuator that controls the heating system when the measured temperature reaches the desired temperature Tset ΔThysteresis where ΔThysteresis...

Страница 83: ...g of windows for air circulation stop of the circulating pump when thermostats are satisfied reduction of the flow temperature in partial load conditions 9 1 1 2 Continuous Proportional Integral control The Proportional Integral control PI is described by the following relation 𝑐𝑜𝑛𝑡𝑟𝑜𝑙 𝑣𝑎𝑟𝑖𝑎𝑏𝑙𝑒 𝑡 𝐾𝑝 𝑒𝑟𝑟𝑜𝑟 𝑡 𝐾𝑖 𝑒𝑟𝑟𝑜𝑟 𝜏 𝑑𝜏 𝑡 0 where 𝑒𝑟𝑟𝑜𝑟 𝑡 𝑆𝑒𝑡𝑝𝑜𝑖𝑛𝑡 𝑀𝑒𝑎𝑠𝑢𝑟𝑒𝑑 𝑡𝑒𝑚𝑝𝑒𝑟𝑎𝑡𝑢𝑟𝑒 𝑖𝑛 ℎ𝑒𝑎𝑡𝑖𝑛𝑔 𝑒𝑟𝑟𝑜𝑟 𝑡 𝑀𝑒𝑎𝑠𝑢𝑟𝑒𝑑 𝑡...

Страница 84: ... purely proportional controller is not able to guarantee the achievement of the setpoint You should always introduce an integrated action for achieving the Setpoint that is why the integral action is also called automatic reset 9 1 1 3 PWM Proportional Integral control The PWM Pulse Width Modulator proportional integral controller uses an analog control variable to modulate the duration of the tim...

Страница 85: ...h its steady state more quickly System terminals Proportional band K Integral time min Cycle time min Radiators 5 150 15 20 Electrical heaters 4 100 15 20 Fan coils 4 90 15 20 Underfloor radiant panels 5 240 15 20 The following are guidelines for the choice of parameters for a proportional integral PWM control Cycle time for low inertia systems such as air heating and conditioning systems short pe...

Страница 86: ...at for each stage there is a hysteresis loop as well as at any speed are assigned two thresholds which determine the activation and deactivation The thresholds are determined by the values set in the application program and can be summarized as follows Speed 1 1st stage The speed is turned ON when the value of the room temperature is lower than the value TSet Threshold Speed1 hysteresis and turned...

Страница 87: ... the room temperature value reaches the value TSet Threshold Speed2 the second speed is also switched OFF when Speed3 must be turned ON Speed 3 3rd stage The speed is turned ON when the value of the room temperature is higher than the value TSet Threshold Speed3 hysteresis and turned OFF when the room temperature value reaches the value TSet Threshold Speed3 As regards the shut off valve of the wa...

Страница 88: ... 2 speed OFF 0 0 0 1 1 0 50 2 0 1 100 Control type 1 speed OFF 0 0 1 1 100 During the changeover before activating the new speed value the other ones must be disabled to prevent damage to the drive of the fan all the communication objects both binary and continuous are therefore updated to the OFF 0 value before being updated to the next speed value by the internal regulator 9 1 1 5 Fan coil with ...

Страница 89: ...ghts reserved Page 89 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 i ...

Страница 90: ... the differential heating control the device activates the auxiliary heating stage by sending a corresponding telegram to the dedicated actuator when the measured temperature reaches the value Tset ΔTOffset the device disables the auxiliary heating system by sending a corresponding telegram to the actuator Cooling conduction mode When the measured temperature Troom is higher than the value Tset ΔT...

Страница 91: ...t which can be differentiated between heating and cooling if the communication objects for control are separated 0 K the radiant panel and the fan coil function as two heating and or cooling elements in parallel If that parameter deviation from the setpoint is 0 K the fan coil intervenes quickly in the early stages of the set up of the room leaving the radiant panel the task of bringing the room t...

Страница 92: ...8 Analogic input 2 external temperature sensor fault E22 CO quality air sensor fault E23 CO external temperature sensor fault E24 CO room temperature sensor fault E25 CO fan coil temperature sensor fault E26 CO surface temperature sensor fault E27 CO flow temperature sensor fault E28 CO relative humidity sensor fault E29 CO antistratification temperature sensor fault E33 CO quality air sensor time...

Страница 93: ...rned to the manufacturer at the following address SBSS p A Via Circonvallazione s n I 28010 Miasino NO Italy 12 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 Each ekinex device ...

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