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ABB i-bus

®

 EIB / KNX 

Application and planning

 

 

3.4.4 Variants 

Pipe systems 

A fan coil unit can be designed as a 4-pipe, 3-pipe or 2-pipe version.  

4-pipe version 

3-pipe version 

2-pipe version 

 

Fig. 10: Pipe systems of fan coil units 

In the 4-pipe version, separate water circulation loops are used for hot and 
cold water. There are thus also two separate heat exchangers for heating 
and cooling which are each triggered via a valve. 

The 3-pipe version functions in a similar way to the 4-pipe version. It also 
has a separate inlet for hot and cold water as well as two separate heat 
exchangers, each with a valve. In contrast to the 4-pipe version, the 3-pipe 
version has a common return flow for hot and cold water. 

The 2-pipe version consists of a single water circulation loop, via which the 
room is either heated or cooled depending on the time of year. In a 2-pipe 
fan coil unit, there is only one heat exchanger and one valve. 

In many HVAC systems, only cooling is carried out via a 2-pipe fan coil unit. 
The heating function is implemented by a conventional heater or by an 
electric heater in the fan coil unit. 

© 2004 ABB STOTZ-KONTAKT GmbH 

 

22

 

3.4.5 Connection 

SA/M 2.6.1

A

B

SA/M 2.6.1

A

B

Room Controller

A

Stufe 1

Stufe 2

Stufe 3

SA/M 2.6.1

 Output A = Master

Fan motor

Valve
(Heating)

SA/M 2.6.1

A

B

Valve
(Cooling)

M1

M2

M3

 

Fig. 11: Connection of a fan coil unit (example) 

Содержание i-bus EIB

Страница 1: ...Product Manual ABB i bus EIB KNX Switch Actuator Modules for the Room Controller SA M 2 6 1 ES M 2 230 1 ES M 2 24 1 Online version High resolution pictures deleted Intelligent Installation Systems ABB ...

Страница 2: ... installation 10 3 Application and planning 11 3 1 The three operating modes 11 3 2 Operating mode Switch actuator 12 3 2 1 Time functions 12 3 2 2 Logic 13 3 2 3 Presets 14 3 2 4 8 bit scene 16 3 2 5 Threshold function 16 3 2 6 Function diagram 18 3 3 Operating mode Heating actuator 19 3 4 Operating mode Fan coil control 21 3 4 1 Terms 21 3 4 2 Structure of an HVAC system with fan coil units 21 3...

Страница 3: ...ndow Function 55 4 5 5 Parameter window Monitoring 56 4 5 6 Parameter window Speed limitation 57 4 5 7 Parameter window Forced operation 57 4 5 8 Communication objects 58 5 Appendix 61 5 1 Value table vor the object Telegr status byte 61 5 2 Ordering information 61 This manual describes the function of the Switch Actuator Module SA M 2 6 1 and the Electronic Switch Actuator Modules ES M 2 230 1 an...

Страница 4: ...ABB i bus EIB KNX installation bus All the modules have two outputs each The Switch Actuator Module SA M 2 6 1 switches via relay outputs while the Electronic Switch Actuator Modules switch via noise free wear resistant electronic semiconductor components SA M 2 6 1 and ES M 2 230 1 are automatically connected to the incoming supply when they are snapped into the Room Controller Basis Device The E...

Страница 5: ...evice contact made via contact system on base of module Incoming supply 0 264 V AC contact established via contact surfaces at the front Outputs 2 load circuits Relay outputs Max switching current 16 A AC1 10 A AC3 Max continuous current 6 A Max inrush peak current Ip 400 A 150 µs 320 A 250 µs Contact endurance 10 7 mechanical 10 5 electrical at 230 V 16 A AC1 Connections Load circuits 2 x three p...

Страница 6: ...e has two relay outputs A and B The switched incoming supply is applied at output L The PE conductor is brought out from the device to connect the protective conductor 2 1 4 Assembly and installation The device is solely intended for operation in the Room Controller Basis Device It can be snapped into any module slot The mounting position can be selected as required 2004 ABB STOTZ KONTAKT GmbH 6 ...

Страница 7: ...Incoming supply Internal supply made available by the Room Controller Basis Device contact made via contact system on base of module Incoming supply 90 264 V AC DC contact established via contact surfaces at the front Outputs 2 load circuits Semiconductor outputs for resistive loads Inrush current max 1 A Continuous current max 700 mA Connections Load circuits 2 x three pole plug in screw terminal...

Страница 8: ...o semiconductor outputs A and B The switched incoming supply is applied at output L The PE conductor is brought out from the device to connect the protective conductor 2 2 4 Assembly and installation The device is solely intended for operation in the Room Controller Basis Device It can be snapped into any module slot The mounting position can be selected as required 2004 ABB STOTZ KONTAKT GmbH 8 ...

Страница 9: ...al supply made available by the Room Controller Basis Device contact made via contact system on base of module Incoming supply 10 30 V AC DC Outputs 2 load circuits Semiconductor outputs for resistive loads Inrush current max 1 A Continuous current max 700 mA Connections Load circuits 1 x four pole plug in screw terminal Incoming supply 1 x two pole plug in screw terminal each for connection and f...

Страница 10: ...f the outputs The output has two switched semiconductor outputs A and B The incoming supply is fed or looped through to the next module via terminals and 2 3 4 Assembly and installation The device is solely intended for operation in the Room Controller Basis Device It can be snapped into any module slot The mounting position can be selected as required 2004 ABB STOTZ KONTAKT GmbH 10 ...

Страница 11: ...rmostat sends a control value which the output uses to control the valve e g as PWM or 2 step control See under section 3 3 for further explanations 3 Fan coil control This function is used to control a fan coil unit for air conditioning in a room e g in an individual room temperature control system The function is as follows An external room thermostat determines the setpoint value 0 255 The fan ...

Страница 12: ...e output is switched off briefly for the period TWARN before the staircase lighting time TON elapses and the object Warning stairc lighting is sent Push button LEDs for example can flash to indicate a warning With pumping the user can adapt the staircase lighting time to the current requirements by pressing the push button several times in succession The maximum duration of the staircase lighting ...

Страница 13: ... TOFF 0 ON OFF TON The ON time TON and OFF time TOFF during the flashing can be parameterised Note Please note that the maximum number of switching operations is limited for the Switch Actuator Module SA M 2 6 1 The number of switching operations is unlimited for the Electronic Switch Actuator Module 3 2 2 Logic With the Logic function it is possible to link the switching of the output with certai...

Страница 14: ...gate function is parameterised with Disable if OFF 0 The logic object has the value 0 The object Switch receives the value 1 No reaction of the output Logic object receives the value 1 gate open No reaction of the output Object Switch receives value 1 Output switches on Application Disable the switching of the lighting Only switch the lighting on under certain conditions 3 2 3 Presets A parameteri...

Страница 15: ... a lightscene for example The presets are stored via the following values Action Telegram Store preset1 Object Set preset 1 2 0 Store preset2 Object Set preset 1 2 1 Store preset3 Object Set preset 3 4 0 Store preset4 Object Set preset 3 4 1 Special function Restore state A useful special function can also be assigned to preset1 and preset3 which is used to recreate the brightness level which was ...

Страница 16: ... parameters of the actuator After a long push button action for example the actuators receive a save command which causes them to store the current value issued by the actuator as a new scene value Up to 64 different scenes are managed via a single group address An 8 bit scene telegram contains the following information Number of the scene 1 64 Retrieve scene store scene 3 2 5 Threshold function T...

Страница 17: ...lue Lower threshold value ON OFF OFF ON OFF OFF ON When the value exceeds or falls below any threshold value the output is switched Note If the object Threshold value receives a value which does not exceed or fall below any of the threshold values compared to the old value no switching operations are triggered 2004 ABB STOTZ KONTAKT GmbH 17 ...

Страница 18: ... op UND ODER XODER Tor Staircase lighting function ON OFF delay Flashing function Fault mode when object Telegr switch is omitted Forced operation active inactive Normally closed contact normally open contact Switch relay Command input Fig 5 Interdependence and priority of the functional groups Example On receipt of a Logical connection object the linking logic is evaluated first of all The result...

Страница 19: ...able mark to space ratio The following example clarifies this t 0 100 40 tON tOFF TCYC Fig 6 Pulse width modulation example During tON the valve is triggered with OPEN ON phase During tOFF the valve is triggered with CLOSE OFF phase Due to tON 0 4 x TCYC the valve is set at approx 40 TCYC is the so called PWM cycle time for continuous control Important A pulse width modulation leads to frequent sw...

Страница 20: ...vides an overview Start Is forced positioning active Is valve purge active Is fault mode active Type of control Trigger forced postioning Valve opened to maximum for duration of valve purge Trigger safety position Output follows object Switch Control acc to object Control value PWM yes yes yes no no no 1 byte 1 bit Fig 7 Prioriy of the special functions flow chart 2004 ABB STOTZ KONTAKT GmbH 20 ...

Страница 21: ...ly Fig 8 Structure of an HVAC system with fan coil units 3 4 3 Structure of a fan coil unit The heat exchangers and the fan are the most important components of a fan coil unit The hot or cold water flows into the heat exchangers depending on the room temperature required The flow of water through the heat exchangers is controlled via the valves Valves Drip tray Fan Motor Switchbox with controller...

Страница 22: ...angers each with a valve In contrast to the 4 pipe version the 3 pipe version has a common return flow for hot and cold water The 2 pipe version consists of a single water circulation loop via which the room is either heated or cooled depending on the time of year In a 2 pipe fan coil unit there is only one heat exchanger and one valve In many HVAC systems only cooling is carried out via a 2 pipe ...

Страница 23: ... slaves via the normal group address assignment Allocation of group addresses Switch Actuator Module M1 SA M 2 6 1 Control value heating Control value cooling Slave fan speed 2 Slave fan speed 3 Slave valve heating from the room thermostat 1 byte 1 bit Slave valve cooling Fan coil slave Output A Master Output B Switch Actuator Module M2 SA M 2 6 1 Fan coil slave Fan coil slave Output A Output B Sw...

Страница 24: ... received Reaction on supply voltage failure The supply voltage has failed if both the 115 230 V AC supply and the 12 V DC auxiliary supply have failed The Room Controller has no function in this case For the Switch Actuator Module SA M 2 6 1 the status of the relay outputs can be parameterised so that a defined state can be established The setting is carried out in the parameter Reaction on bus v...

Страница 25: ...ects Max number of group addresses Max number of associations Room Controller modular 8f 1 246 254 255 4 2 General functions 4 2 1 Parameter window General The operating mode of the output is set in the first parameter Parameter Operating mode of output The function of the output can be selected here The options available are Switch actuator Heating actuator and Fan coil control The other paramete...

Страница 26: ...ending after bus voltage recovery This parameter is visible if the Status response of switching state is carried out It can be set whether the switching state is updated on the bus after a bus voltage recovery The update is carried out in connection with the transmission delay of the Room Controller Parameter Reaction on bus voltage failure The output can adopt a defined state on bus voltage failu...

Страница 27: ...rse process is carried out Parameter Enable function time staircase lighting flashing This parameter enables the function Time staircase lighting flashing parameter window A Time Parameter Enable function presets This parameter enables the Preset function parameter window A Presets Parameter Enable function scene 8 bit The object 8 bit scene is enabled via this parameter parameter window A Scene P...

Страница 28: ...f staircase lighting The operating time defines how long the staircase lighting is switched on after an ON command Parameter Extending staircase lighting by multiple operation pumping up If a further ON telegram is received during the staircase lighting time the remaining staircase lighting time can be extended by a further period The maximum period can be set in this parameter In the setting no t...

Страница 29: ...separately Parameter Warning time The above warning time is set in this parameter Parameter Duration of staircase lighting can be changed by object The object Duration of staircase lighting is enabled via this parameter It enables the staircase lighting time to be modified via the bus Parameter After supply voltage recovery the staircase light is It can be set here whether the staircase lighting i...

Страница 30: ...se Status switch is active it also indicates the current state of the relay during the flashing With a rapid flashing rate this can lead to a high bus load Parameter Flashing if object Switch is This parameter sets which value of the object Switch causes the output to flash It can also be set that the output always flashes Parameter Time for ON or Time for OFF This parameter defines how long the o...

Страница 31: ...wing functions can also be selected restore old value before preset2 recreates the state before the last retrieval of preset2 Example With preset2 the lighting in a conference room is retrieved for a presentation When the presentation is finished the lighting is restored via preset1 to the state it was in beforehand restore parameterised value of preset2 resets preset2 to the parameterised value T...

Страница 32: ...nt scenes 1 64 can be addressed via a group address The output can be assigned to a maximum of 5 of them Parameter Standard value This parameter sets which state the output adopts when the scene is retrieved By storing a scene the user has the possibility of modifying the value that is parameterised here After programming or after a supply voltage failure the value that is parameterised here is re...

Страница 33: ...n 3 2 2 Please note the function diagram in section 3 2 6 Parameter Function of object Logical connection The logic function of the object Logical connection is defined here All three standard operators are possible AND OR XOR The gate function is also available which can block switching commands Parameter Result is inverted The result of the logic operation can be inverted via this parameter If t...

Страница 34: ...is parameter It can be carried out via a 1 bit or 2 bit object Parameter Reaction on forced operation This parameter sets which state the output adopts during a forced operation It is only visible for 1 bit forced operation Parameter Reaction when forced operation ends This parameter is visible if forced operation is carried out via a 1 bit object The state of the relay at the end of the forced op...

Страница 35: ...r than three times the transmission cycle time Parameter Safety state The state which the relay adopts while the safety position is active is set here The safety position is automatically cancelled as soon as the device receives a telegram at the object Switch again Parameter Cyclic monitoring time The monitoring time with which the object Switch is observed is set here 2004 ABB STOTZ KONTAKT GmbH...

Страница 36: ...ed here If they are not required it is possible to enter zero here The value range is dependent on the data type Parameter Object value on bus voltage recovery The value of the object Threshold value after bus voltage recovery can be defined here Note When a threshold value is exceeded the time functions are restarted the logic operations are re evaluated Parameter Threshold values define hysteres...

Страница 37: ...the threshold values are interpreted as hysteresis limits They define the reaction of the output if the object value Threshold value exceeds or falls below the upper or lower threshold A reaction only occurs if the object value was previously smaller or larger than the lower or upper threshold value Further explanations can be found in section 3 2 5 2004 ABB STOTZ KONTAKT GmbH 37 ...

Страница 38: ...S1 CT Used to issue a warning before the staircase lighting time elapses 4 19 Duration of staircase lighting Output A 2 byte DPT7 005 CRW Changes the duration of the staircase lighting in seconds Additional function Preset No Function Object name Data type Flags 5 20 7 22 Call preset 1 2 and Call preset 3 4 Output A 1 Bit EIS1 CW Retrieves a parameterised output state 0 retrieves preset1 or preset...

Страница 39: ...a parameterisable threshold value a switching operation can be executed 4 3 9 2 Detailed description of the objects Object Switch 1 bit EIS1 Switches the output on and off switching command If the output is parameterised as a Normally open contact the relay is closed with the telegram value 1 and opened with the telegram value 0 when parameterised as a Normally closed contact the reverse process i...

Страница 40: ...ing a push button LED Object Duration of staircase lighting 2 byte DPT7 005 The staircase lighting time tON can be modified via this object The time is indicated in seconds On recovery of the supply voltage the object value is overwritten by the originally parameterised value This object is visible if yes is entered under the parameter Duration of staircase lighting can be changed by object Note T...

Страница 41: ...ction can be set in the parameters The Switch object is first linked with Logical connection 1 The result is then linked with Logical connection 2 Object Priority forced operation 1 bit or 2 bit EIS1 EIS8 An output can be positively driven via this object e g through priority control Forced operation via 1 bit object If this object receives the value 1 the output is forced into a parameterisable p...

Страница 42: ...he output can receive a value via this object If this value falls below or exceeds a parameterisable threshold value a switching operation can be carried out A 1 byte integer value and a 2 byte floating point value are possible as data types can be set in the parameters 2004 ABB STOTZ KONTAKT GmbH 42 ...

Страница 43: ...ion The output can be set to a defined state with this parameter This parameter is only visible for the Switch Actuator Module SA M 2 6 1 The Electronic Switch Actuator Modules ES M 2 xx 1 always switch off on failure of the supply voltage high resistance Parameter Control telegram is received as The heating actuator can either be controlled via the 1 bit object Switch or the 1 byte object Control...

Страница 44: ...ed Please note that this setting may result in an increased bus load Parameter PWM cycle time for continuous control The interpulse period of the pulse width modulation for continuous action control is set here corresponds to tCYC in Figure 1 For 2 step control 1 bit control the pulse width modulation is only used in fault mode during forced operation and directly after bus voltage recovery Parame...

Страница 45: ...can thus be detected The output switches to fault mode and moves to a defined position Parameter Enable function forced operation The forced operation of the output can be enabled here in order to move the outputs to a specific position e g for inspection purposes Parameter Enable function valve purge The cyclic valve purge can be enabled here to prevent deposits from forming in the valves 2004 AB...

Страница 46: ...n this parameter the actuator switches to fault mode and triggers a safety position The fault mode is ended as soon as a telegram is received Note If this parameter window is visible the room thermostat must send the control value cyclically otherwise no function is possible The monitoring time should be greater than the cyclic transmission time recommended Factor 2 Parameter Position of the valve...

Страница 47: ...able forced position which can no longer be changed This has the highest priority i e it is not modified by a valve purge or safety position Parameter Valve position during forced positioning The valve position triggered by the actuator during the forced operation is defined in this parameter The switch cycle time tCYC of the control is defined in the parameter PWM cycle time for continuous contro...

Страница 48: ...ened to the maximum during a valve purge It can be triggered via the object Trigger valve purge and or automatically at adjustable intervals Parameter Time of valve purge The duration of a valve purge is set here Parameter Automatic valve purge If yes is entered in this parameter the valve is automatically purged at adjustable intervals Parameter Period between valve purges This parameter is visib...

Страница 49: ...the valve is opened for the duration of the valve purge The valve purge is ended on receipt of the value 0 5 20 Status valve purge Output A 1 bit EIS1 CT Indicates that the valve purge is active 11 26 Telegr fault thermostat Output A 1 bit EIS1 CT Indicates a possible fault with the room thermostat 29 Telegr status byte Output A B 1 byte EIS14 CRT This object provides further information about the...

Страница 50: ...alue OFF the valve purge is ended This object is visible if the purge function has been enabled in the parameters Object Status valve purge 1 bit EIS1 This object indicates that the valve purge is active Telegram value 0 Valve purge is not active 1 Valve purge is active Object Telegr fault thermostat 1 bit EIS1 This object indicates a possible fault of the room thermostat The object Switch or Cont...

Страница 51: ...fan coil unit A fan coil unit consists of one or two cooling or heating circuits which are controlled via valves The valves are controlled via the outputs of the switch actuator on off There is also a fan which blows on the heat exchanger It can be controlled in stages generally 3 speeds Control value example Fan speed Output 1 Output 2 Output 3 0 30 Speed 1 ON OFF OFF 30 60 Speed 2 OFF ON OFF e g...

Страница 52: ...Master setting Parameter Status response of switching state The object Status switch can be enabled via this parameter if the status of the output is reported on the bus Parameter Waiting time for switching between two speeds The operating time is delayed to enable an idle period when switching over the motor or valve or to prevent the period that they are switched on off from being too short The ...

Страница 53: ...Project design and programming Parameter Function of object Toggle heating cooling The object Toggle heating cooling can be inverted via this parameter This is preset by the room thermostat 2004 ABB STOTZ KONTAKT GmbH 53 ...

Страница 54: ...ed 2 to Slave fan speed 5 are enabled Parameter Threshold OFF speed1 to speed4 speed5 These parameters are visible depending on the number of fan speeds The threshold values of the control value from which a fan switches up or down must be entered here Parameter Hysteresis between fan speeds in If a fan value fluctuates around a fan speed the ventilation would be operated continually This can be p...

Страница 55: ... be detected The output then switches to fault mode and moves to a defined position Parameter Enable function fan speed limitation This function enables e g noise reduction via the bus during operation at night Parameter Enable function forced operation The forced operation of the fan speed and the valve position can be enabled here in order to move outputs into a specific position e g for inspect...

Страница 56: ...ter is visible if cyclic monitoring has been enabled The cyclic monitoring time is set here Parameter Fan speed during fault of room thermostat This parameter is visible if cyclic monitoring has been enabled It defines which fan speed and valve position are triggered during fault mode Parameter Valve position during fault of room thermostat It can be set here whether heating or cooling should be c...

Страница 57: ...s not modified by a valve purge or safety position The forced operation can be activated via the object Forced operation ON and deactivated via Forced operation OFF Parameter Fan speed during forced operation This parameter defines which fan speed and valve position are triggered during the forced operation Parameter Valve position during forced operation The valve position triggered by the actuat...

Страница 58: ... which are used to control the ventilation 9 24 Slave valve Output A Master 1 bit EIS1 CRT Visible when controlling a 2 pipe system Via these objects the master controls a slave output which in turn controls the valve 9 24 Slave valve heating Output A Master 1 bit EIS1 CRT Visible when controlling a 4 pipe system Via these objects the master controls a slave output which in turn controls the valve...

Страница 59: ...tion not active 1 Forced operation active Object Toggle heating cooling 1 bit EIS1 This object is visible in the operating mode 2 pipe system heating and cooling i e the fan coil unit only has one connection for supplying hot or cold water Via the object the device receives information from the building control system about whether hot or cold water is supplied The object Control value heating or ...

Страница 60: ...ere are two valves for heating and cooling Object Telegr fault thermostat 1 bit EIS1 This object indicates a possible fault of the room thermostat If the object value Control value heating or Control value cooling is not available for a parameterisable period it is assumed that the room thermostat has a fault and the fan coil controller reports a fault and switches to the safety position Telegram ...

Страница 61: ...tus value DC supply voltage otherwise AC Supply voltage OK Overload e g short circuit Output B Overload e g short circuit Output A 0 00 66 42 131 83 1 01 67 43 192 C0 2 02 128 80 193 C1 3 03 129 81 194 C2 64 40 130 82 195 C3 55 41 5 2 Ordering information Description Type Order no bbn 40 16779 EAN Unit price EURO Price group Unit weight kg Pack unit pc Switch Actuator Module 2 fold 6 A SA M 2 6 1 ...

Страница 62: ...ABB 2006 04 07 2004 ABB STOTZ KONTAKT GmbH 62 ...

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