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Parameter setting

Sensors Sewi KNX AQS and Sewi KNX AQS/TH-D

• Version: 10.09.2018 • Technical changes and errors excepted.

6.17. CO2 PI-control

If you activate air quality control, you can use the following settings to define control
type, setpoint values, and ventilation.

General control

The

Sensors Sewi KNX AQS and Sewi KNX AQS/TH-D

can be used to control one

or two-stage ventilation.

Configure a block for the ventilation control using the blocking object.

Specify when the current control variables are to be sent to the bus. Periodic sending
is safer, in case a message does not reach a recipient. You may also set up periodic
monitoring using an actuator with this setting.

The status object shows the current status of the output variable (0 = OFF, >0 = ON) and
can for example be used for visualisation.

Switching output sends on change to 1

• Do not send message
• if switching output = 1



send 1

Switching output sends on change to 0

• Do not send message
• if switching output = 0



send 0

Switching output sends on change and
periodically

Send switching output status

Switching output sends on change to 1
and periodically

if switching output = 1



send 1

Switching output sends on change to 0
and periodically

if switching output = 0



send 0

Use control

Yes

• No

Type of control

• One-stage ventilation
• Two-stage ventilation

Behaviour of the blocking object with value

• 1 = Block | 0 = release
• 0 = block | 1 = release

Blocking object value
before first communication

0 • 1

Send control variable

• on change
• on change and periodically

at and above change of (in ppm)

1...20; 2

Cycle
(

if sent periodically)

5 s • ... • 5 min • … • 2 h

Содержание Sewi KNX AQS

Страница 1: ...Item numbers 70394 AQS 70397 AQS TH D Sewi KNX AQS and Sewi KNX AQS TH D Indoor Air Quality Sensors EN Installation and Adjustment...

Страница 2: ......

Страница 3: ...ication objects 13 6 Parameter setting 28 6 1 Behaviour on power failure restoration of power 28 6 2 General settings 29 6 3 Temperature Measurement 29 6 4 Temperature threshold values 30 6 4 1 Thresh...

Страница 4: ...rom ETS programme version 1 1 Version 10 09 2018 Technical changes and errors excepted 6 18 1 Control variable comparator 1 2 3 4 62 6 19 Computer 63 6 19 1 Computer 1 8 63 6 20 Logic 67 6 20 1 AND lo...

Страница 5: ...eshooting of the device must only be carried out by a competent electrician Safety advice Safety advice for working on electrical connections components etc DANGER indicates an immediately hazardous s...

Страница 6: ...4 Clarification of signs...

Страница 7: ...alculation The share of internal measurement value and external value can be set as a percentage Threshold values can be adjusted per parameter or via communication objects PI controller for ventilati...

Страница 8: ...sing Plastic Colour White Cover glossy skirting matt Assembly Surface wall or ceiling installation Protection category IP 30 Dimensions approx 105 mm height approx 32 mm Total weight approx 50 g Ambie...

Страница 9: ...should only be performed by an electrician CAUTION Live voltage There are unprotected live components inside the device National legal regulations are to be followed Ensure that all lines to be assemb...

Страница 10: ...ndensation The sensor is installed surface mounted on walls or ceilings When selecting an installation location please ensure that the measurement results of temperature humidity and CO2are affected a...

Страница 11: ...d Sewi KNX AQS TH D Version 10 09 2018 Technical changes and errors excepted 2 3 Construction of the sensor 2 3 1 Housing from the outside Fig 1 A Recess to open the hous ing When closing the housing...

Страница 12: ...Assembly Fig 2 1 a b Long holes for mounting hole distance 60 mm 2 Sensors for temperature humidity pressure only Sewi KNX AQS TH D 3 CO2 Sensor 4 Programming button 5 Programming LED 6 KNX terminal B...

Страница 13: ...t be closed or covered After the bus voltage has been applied the device will enter an initialisation phase last ing a few seconds During this phase no information can be received or sent via the bus...

Страница 14: ...th the bus address 15 15 254 You can program a differ ent address in the ETS by overwriting the address 15 15 254 or by teaching the device via the programming button The programming button is on the...

Страница 15: ...emp 2 bytes 43 Temperature sensor Measured value Output R CT 9 1 DPT_Val ue_Temp 2 bytes 44 Temperature sensor Total measurement Output R CT 9 1 DPT_Val ue_Temp 2 bytes 45 Temperature sensor Min Max m...

Страница 16: ...h 1 bit 67 Temp threshold value 3 Switching delay from 0 to 1 Input WC 7 5 DPT_Time PeriodSec 2 bytes 68 Temp threshold value 3 Switching delay from 1 to 0 Input WC 7 5 DPT_Time PeriodSec 2 bytes 69 T...

Страница 17: ...itch 1 bit 336 Humidity threshold value 1 Switching output block Input WC 1 1 DPT_Switch 1 bit 337 Humidity threshold value 2 Absolute value Input Output RWCT 9 7 DPT_Val ue_Humidity 2 bytes 338 Humid...

Страница 18: ...DPT_Switch 1 bit 385 Coolant temp Current offset Output R CT 9 1 DPT_Val ue_Temp 2 bytes 386 Coolant temp Switching delay from 0 to 1 Input WC 7 5 DPT_Time PeriodSec 2 bytes 387 Coolant temp Switching...

Страница 19: ...PT_Time PeriodSec 2 bytes 414 Air pressure threshold value 1 Delay from 1 to 0 Input WC 7 5 DPT_Time PeriodSec 2 bytes 415 Air pressure threshold value 1 Switching output Output R CT 1 1 DPT_Switch 1...

Страница 20: ...t block Input WC 1 1 DPT_Switch 1 bit 441 CO2 Sensor Malfunction Output R CT 1 1 DPT_Switch 1 bit 442 CO2 Sensor External measurement Input WCT 9 008 DPT_Val ue_AirQuality 2 bytes 443 CO2 Sensor Measu...

Страница 21: ...7 5 DPT_Time PeriodSec 2 bytes 464 CO2 threshold value 3 Switching output Output R CT 1 1 DPT_Switch 1 bit 465 CO2 threshold value 3 Switching output block Input WC 1 1 DPT_Switch 1 bit 466 CO2 thres...

Страница 22: ...eating 1 0 Input WC 1 1 DPT_Switch 1 bit 489 Temp controller Setpoint comfort cooling Input Output RWCT 9 1 DPT_Val ue_Temp 2 bytes 490 Temp controller Setpoint comfort cooling 1 0 Input WC 1 1 DPT_Sw...

Страница 23: ...WCT 1 1 DPT_Switch 1 bit 510 Temp controller Comfort extension time Input RWCT 7 5 DPT_Time PeriodSec 2 bytes 515 European Summer Time Outside temperature Input WCT 9 1 DPT_Val ue_Temp 2 bytes 516 Eur...

Страница 24: ...1 Input WC 5 1 DPT_Scaling 1 byte 1119 Control variable comparator 2 Input 2 Input WC 5 1 DPT_Scaling 1 byte 1120 Control variable comparator 2 Input 3 Input WC 5 1 DPT_Scaling 1 byte 1121 Control va...

Страница 25: ...ng 4 bytes 1142 Computer 1 Input I2 Input RWCT Depending on setting 4 bytes 1143 Computer 1 Input I3 Input RWCT Depending on setting 4 bytes 1144 Computer 1 Output O1 Output R CT Depending on setting...

Страница 26: ...ut RWCT Depending on setting 4 bytes 1167 Computer 4 Input I3 Input RWCT Depending on setting 4 bytes 1168 Computer 4 Output O1 Output R CT Depending on setting 4 bytes 1169 Computer 4 Output O2 Outpu...

Страница 27: ...Input I3 Input RWCT Depending on setting 4 bytes 1192 Computer 7 Output O1 Output R CT Depending on setting 4 bytes 1193 Computer 7 Output O2 Output R CT Depending on setting 4 bytes 1194 Computer 7 C...

Страница 28: ...output A Output R CT 5 010 DPT_ Value_1_Ucount 1 byte 1413 AND logic 1 8 bit output B Output R CT 5 010 DPT_ Value_1_Ucount 1 byte 1414 AND logic 1 Block Input WC 1 1 DPT_Switch 1 bit 1415 AND logic...

Страница 29: ...ool 1 bit 1440 AND logic 8 8 bit output A Output R CT 5 010 DPT_ Value_1_Ucount 1 byte 1441 AND logic 8 8 bit output B Output R CT 5 010 DPT_ Value_1_Ucount 1 byte 1442 AND logic 8 Block Input WC 1 1...

Страница 30: ...010 DPT_ Value_1_Ucount 1 byte 1461 OR logic 5 8 bit output B Output R CT 5 010 DPT_ Value_1_Ucount 1 byte 1462 OR logic 5 Block Input WC 1 1 DPT_Switch 1 bit 1463 OR logic 6 1 bit switching output Ou...

Страница 31: ...g The minimum and maximum readings can be saved and sent to the bus Use the Reset temperature min max value objects to reset the values to the current readings The values are not retained after a rese...

Страница 32: ...ysteresis directly Threshold value setting via a communication object Define how the threshold value is to be received from the bus Basically a new value can be received or simply a command to increas...

Страница 33: ...1 C 300 800 Type of threshold value change Absolute value Increase decrease Increment upon increase decrease change 0 1 C 5 C Hysteresis setting in absolute Hysteresis in 0 1 0 1100 50 Hysteresis in o...

Страница 34: ...ct At value 1 block At value 0 release At value 0 block At value 1 release Blocking object value before 1st communication 0 1 Behaviour of the switching output On block Do not send message send 0 send...

Страница 35: ...rnatively you can use three objects with one object switching between eco and standby mode and the two others activating comfort mode and frost heat protection mode respectively The comfort object blo...

Страница 36: ...value only the deviation from the comfort setpoint value is listed for the other modes e g 2 C less for standby mode Cycle if sent periodically 5 s 5 min 2 h Send status objects on change on change to...

Страница 37: ...t as well as a temperature range in which the setpoint value may be modified If setpoint values are entered separately If the comfort setpoint value is used as a basis If the comfort setpoint value is...

Страница 38: ...fined as well as a temperature range in which the setpoint value may be changed If the comfort setpoint value is used as a basis If the comfort setpoint value is used as a basis the reduction incremen...

Страница 39: ...lowing applies 0 100 heating 66 100 control variable OFF 50 control variable 0 100 cooling 33 0 control variable 6 5 1 Heating control level 1 2 If a heating control mode is configured one or two sett...

Страница 40: ...g system at this point observe ma nufacturer s instructions Now specify what should be sent when the control is blocked Set a value greater 0 OFF to receive a basic heating level e g for floor heating...

Страница 41: ...shold range If separate control variables are used select whether the control variable of the 2nd le vel is a 1 bit object on off or an 8 bit object on with percentage off Application Warm water heati...

Страница 42: ...ation from the setpoint value which reaches maximum variable value i e the point at which maximum cooling power is activated The reset time shows how quickly the controller responds to deviations from...

Страница 43: ...frequent on off switching of temperatures in the th reshold range If separate control variables are used select whether the control variable of the 2nd le vel is a 1 bit object on off or an 8 bit obj...

Страница 44: ...in which the target value for the indoor temperature is to be adapted linearly Then specify which indoor temperature target values are to be valid below point1 and above point 2 Standard values accor...

Страница 45: ...the overall reading The minimum and maximum readings can be saved and sent to the bus Use the Reset humidity min max value objects to reset the values to the current readings The values are not retai...

Страница 46: ...old values and hysteresis directly Threshold value setting using a communication object Define how the threshold value is to be received from the bus Basically a new value can be received or simply a...

Страница 47: ...ncrease decrease Increment upon increase decrease change 0 1 RH 2 0 RH 20 0 RH Hysteresis setting in absolute Hysteresis in 0 1 RH 0 1000 100 Hysteresis in relative to the threshold value 0 50 20 When...

Страница 48: ...nalysis of the blocking object At value 1 block At value 0 release At value 0 block At value 1 release Blocking object value before first communi cation 0 1 Behaviour of the switching output On block...

Страница 49: ...ich is valid until the first communication of a new setpoint value For units which have already been ta ken into service the last communicated setpoint value can be used Basically an air humidity rang...

Страница 50: ...lue difference between the two levels must be defined i e the setpoint value which when exceeded triggers the switch to the 2nd level Determine the deviation from the setpoint value at which the maxim...

Страница 51: ...e set for the temperature of the coolant which is based on the current dewpoint temperature offset deviation The switching output of the coolant temperature monitoring system can provide a warning pri...

Страница 52: ...e offset received via communication object never after power supply restoration after power supply restoration and programming Start offset in C valid until first communication 0 200 30 Increment for...

Страница 53: ...n change to 0 and periodically Send cycle is only sent if periodically is selected 5 s 10 s 30 s 2 h Use switching output block No Yes Analysis of the blocking object At value 1 block At value 0 relea...

Страница 54: ...y with DIN 1946 Use absolute humidity No Yes Sending pattern never periodically on change on change and periodically At and above change of if sent on change 0 1 g 0 2 g 0 5 g 1 0 g 2 0 g 5 0 g Send c...

Страница 55: ...e minimum and ma ximum value these values are not retained after a reset Dependent on the air pressure measured a Text object can be sent Specify the sen ding pattern and enter the text Use malfunctio...

Страница 56: ...value The menus for setting the threshold values are displayed 6 14 1 Air pressure threshold value 1 4 Threshold value Set in which cases threshold values and delay times received are to be kept per...

Страница 57: ...ceeded or undercut Set the delay for the switching and in which cases the switch output transmits Maintain the threshold values and delays received via communication object never after power supply re...

Страница 58: ...Cycle if sent periodically 5 s 2 h Use switching output block No Yes Analysis of the blocking object At value 1 block At value 0 release At value 0 block At value 1 release Blocking object value befor...

Страница 59: ...Activate the required CO2 threshold value The menus for setting the threshold values are displayed 300 ppm 1000 ppm fresh air 1000 ppm 2000 ppm used air 1000 ppm 0 1 6 16 1 Threshold value 1 2 3 4 Thr...

Страница 60: ...e used Basically a range is specified in which the threshold value can be changed object value limit A set threshold value will be retained until a new value or a change is transferred The current val...

Страница 61: ...TV hyst above 1 Delays can be set via objects in seconds No Yes Switching delay from 0 to 1 If delay can be set via objects valid until first communication None 1 s 2 s 5 s 10 s 2 h Switching delay fr...

Страница 62: ...object shows the current status of the output variable 0 OFF 0 ON and can for example be used for visualisation Switching output sends on change to 1 Do not send message if switching output 1 send 1 S...

Страница 63: ...ct value limit A set setpoint value will be retained until a new value or a change is transferred The current value is saved so that it is retained in the event of a power supply failure and will be a...

Страница 64: ...ds somewhat less urgently and needs longer until the necessary control variable for the setpoint value deviation is reached You should set the time appropriate to the ventilation system at this point...

Страница 65: ...m value Minimum value Average value Use input 1 2 3 4 5 No Yes Output sends on change of output on change of output and periodically when receiving an input object when receiving an input object and p...

Страница 66: ...nt Calculation Output 1 E1 X Y Output 2 E2 X Y Transformation General Tolerance for comparison in the case of prerequisite E1 E2 0 4 294 967 295 Input type Selection options depending on the func tion...

Страница 67: ...Input range depending on the type of output Output sends on change on change and after reset on change and periodically when receiving an input object when receiving an input object and periodically T...

Страница 68: ...at a 1 or 0 at the block entry means and what happens in the event of a block Output sends on change on change and after reset on change and periodically when receiving an input object when receiving...

Страница 69: ...are available for AND and OR logic Each logic output may transmit one 1 bit or two 8 bit objects Determine what the out put should send if logic 1 and 0 Value before first call 0 1 Output pattern On b...

Страница 70: ...bit objects Output value if logic 1 1 0 Output value if logic 0 1 0 Output value If block is active 1 0 Output value if monitoring period is exceeded 1 0 Object type Value 0 255 Percent 0 100 Angle 0...

Страница 71: ...to 0 on change of logic and periodically on change of logic to 1 and periodically on change of logic to 0 and periodically on change of logic object receipt on change of logic object receipt and perio...

Страница 72: ...ed Logic input 12 Logic input 12 inverted Logic input 13 Logic input 13 inverted Logic input 14 Logic input 14 inverted Logic input 15 Logic input 15 inverted Logic input 16 Logic input 16 inverted Te...

Страница 73: ...tput 1 CO2 inverted Switching output 2 CO2 Switching output 2 CO2 inverted Switching output 3 CO2 Switching output 3 CO2 inverted Switching output 4 CO2 Switching output 4 CO2 inverted Comfort tempera...

Страница 74: ...espond to those of the AND logic In addition the following inputs are available for the OR logic Switching output AND logic 1 Switching output AND logic 1 inverted Switching output AND logic 2 Switchi...

Страница 75: ......

Страница 76: ...bH Control and Automation Engineering Sohlengrund 16 75395 Ostelsheim Phone 49 0 70 33 30 945 0 info elsner elektronik de Germany Fax 49 0 70 33 30 945 20 www elsner elektronik de Technical support 49...

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