Room thermostat, FM Type: x-102

Transcription

1 The room thermostat application module is placed on a flush-mounted bus coupler. The room thermostat is used for regulating the temperature in individual rooms.the required set temperature can be assigned parameters using the ETS software. In addition the user can adjust the set temperature using a rotary switch and can toggle between comfort and standby mode using an integrated presence switch. The current mode of operation (comfort mode, standby mode, night operation) is displayed by three green LEDs. The frost or heat protection is shown by a red LED while a yellow LED displays the frost alarm. In addition a cover frame in the chosen colour and a flush-mounted bus coupler are required. Note: the position of the PCI is rotated by about 90. Therefore you have to rotate the bus coupling units by about 90. Technical data Power supply EIB 24 VDC, via the bus line Operating and display elements Rotary switch To adjust the set temperature Push button To toggle between comfort/standby Three green LEDs Comfort, standby, night operation Yellow LED Frost alarm Red LED Frost/heat protection Connections Flush-mounted bus coupler 10-pole plug connector Type of protection IP 20, EN mounted on the bus coupler Ambient temperature range Operation - 5 C 45 C Storage -25 C 55 C Transport -25 C 70 C Design alpha nea Colour platinum, bronze, studio white, matt, studio white, gloss, basalt black, cardinal red, hansa blue Mounting latched onto the flush-mounted bus coupler Dimensions 56 x 71 x 17 mm (H x W x D) Weight 0.04 kg Certification CE norm EIB-certified in accordance with the EMC guideline and the low voltage guideline 2-82 July 2000

2 Application programs Number of Max. number of Max. number of communication objects group addresses associations Continuous/Switch Heat Cool / Circuit diagram Bus cable 4 Application module 2 Bus terminal 5 10-pole plug 3 Flush-mounted bus coupler July

3 Continuous/Switch Heat Cool /2 Selection in ETS2 ABB Heating Thermostat The application program makes it possible to have individual room temperature control. The room thermostat can be adapted to various heating and/or cooling appliances by selecting appropriate parameter settings. The thermostat has five operating modes which are each assigned a separate setpoint value in heating/cooling mode. The states are displayed by LEDs on the device. The status of the communication objects Comfort mode, Night operation, Frost/heat protection, Dewpoint mode and Push button determines the active operating mode. It is possible to switch to comfort mode using the presence switch located on the device. The presence switch can also be addressed via the bus and the 1 bit object Push button is available for this purpose. It can also simultaneously send the status of the push buttons to the bus. Caution: If the Push button object and the presence switch are operated at the same time (within approx. 2 s), the push button changes the object value that has just been received. Continuous / Switch Using the parameter Type of heat function or Type of cooling function, it it possible to adapt the internal calculation and output of the control values to the properties of the room and the possible heating or cooling appliances. The parameter has four options: continuous PI control: The control value is determined internally according to a PI algorithm and output via a 1 byte communication object. It is therefore possible for example for electromotive control valves to be addressed in a range between 0 (= 0% = valve closed) and 255 (= 100% = valve fully opened). PWM control: The control value is determined internally according to a PI algorithm and output via a 1 byte communication object. It is therefore possible for example to address electrothermal control valves via switch actuators. The room thermostat operates with pulse width modulation so that the heat output can be set to intermediate values. It is therefore necessary to parameterise the period for the switching cycle of the control values. With a preset cyclic time of 15 minutes (90 * 10 seconds), a control value of 33.3% which has been determined internally means that the valve is opened for 5 minutes and closed for 10 minutes. switching two-step control: The control value is determined internally according to a two-step algorithm with an adjustable hysteresis and output via a 1 bit communication object. It is therefore possible for example for electrothermal control valves to be addressed via switch actuators. The heating valve is closed if the setpoint value is exceeded. If the room thermostat falls below the setpoint value minus the hysteresis, the heating valve is opened. continuous two-step control: The control value is determined internally according to a two-step algorithm with an adjustable hysteresis and output via a 1 byte communication object. It is therefore possible for example to address electromotive control valves. In this case, the room thermostat only sends the values 0 (= 0% = valve closed) and 255 (= 100% = valve fully opened). Heat Cool With the parameter Activation of heat/ cool function, it is determined whether the room thermostat controls heating and/or cooling appliances. There are five different settings available: heat, cool, heat and cool, 2-step heat and 2-step cool. The settings 2-step heat and 2-step cool are used if a relatively slow basic system is to be combined with a faster additional system. An example of this is floor heating as a basic system and warm water heating as an additional system. If there is a substantial system deviation, the additional system helps to correct this deviation as quickly as possible. In the event of a minor system deviation, only the basic system is used July 2000

4 There are various predefined appliances available for selection for the heat function (e.g. warm water heating, floor heating, air convector, electric heating). These settings normally suffice. Should these appliances however not be sufficient for adapting the control system to the heating system, it is also possible to carry out this adjustment via the control parameter. Only in special cases should detailed control parameters be selected after an exact investigation of the controlled variables in the room. The parameters Proportional range for heating and Readjust time for heating should be set individually. The control system can be deactivated for the investigation of these controlled variables. There are also predefined appliances available for the cooling function (e.g. cooling ceiling, air convector, SplitUnit). In special cases, it is also possible to adapt the control system via the control parameters. The room thermostat has parameterisable setpoint values. The base setpoint is preset to 21 C but can be changed if required (7 40 C). The parameters Standby mode, Night operation and Frost/heat protection for the various operating modes can then be set in relation to the base setpoint. In the heat and cool operating mode, the room thermostat uses the parameter Insensitive zone between heat and cool. This prevents the thermostat from switching between heat and cool too frequently. In the settings 2-step heat or 2-step cool, the parameter Distance from basic to additional system is used to prevent the thermostat from toggling. Object no. 3 has the highest priority. The thermostat is always inactive if the value of the object is logic 1. If communication objects no. 0 to 3 have the value 0, the thermostat operates in standby mode. If both object no. 0 Comfort mode and object no. 1 Night operation have the value 1, the comfort mode takes priority. It is possible to adjust the influence of the potentiometer that is attached to the thermostat using the parameter Scaling of setpoint adjustment button. The available settings lie in a range between +/- 0K (= disabled) and +/- 10K. If required, the setpoint can also be set as a 2 byte value using object no. 10. The value is stored in the EEPROM of the bus coupler. Frequent changes (more than 1-2 times a day) are not recommended as the EEPROM memory only permits a certain number of modifications. From standby mode or night operation, it is possible to switch to comfort mode using the presence switch for the set extended comfort period. Once this period has elapsed, the device returns to the original operation mode. It is also possible to deactivate the presence switch to prevent unauthorised persons from operating it. This is a good idea for example in public buildings and schools. If the operation mode has been changed to standby mode, it is a good idea to predefine the behaviour of the presence switch. For this reason, the room thermostat has the parameters Function of push button status if. It is possible to set here whether the push button status should be deleted or recreated (night object is set to 0) or unchanged (comfort object is set to 0). If object no. 3 has the value 0 and object no. 2 has the value 1, the thermostat is always set to the Frost/heat protection operating mode. It is a good idea for the frost/heat protection object to be influenced by a window contact (via a binary input). As soon as the window is opened, the room temperature is lowered for example to 7 C (for heating).. July

5 In addition to controlling heating or cooling appliances, the room thermostat can also output the current temperature. There is a 2 byte communication object available for this. In order for the room temperature to be output automatically, it is necessary to indicate the temperature change which should trigger the sending of a new temperature value. The selected value should not be too low to ensure that the bus load remains negligible. Any measurement errors that may occur e.g. due to the bus coupler heating up can be corrected using an adjustment value. The output of the control value is carried out if it has changed by a specific percentage value. In addition, it can also be necessary for certain actuators to send the control value cyclically. The cyclic time that is to be set depends on the monitoring period of the actuator. It can also be necessary for certain heating or cooling appliances to invert the output of the control value using the parameters Output of control value. Object no. 9 represents the internal control status of the room thermostat. In the basic setting, it is a 1 byte object and displays the following states bit by bit: bit 0: Comfort bit 1: Standby bit 2: Night bit 3: Frost/heat protection bit 4: Dewpoint bit 5: Heat/cool bit 6: Controller OFF bit 7: Frost alarm If required, it is possible to select one of the states using the parameter Meaning of object status. In this case, object no. 9 is a 1 bit object. Recommended settings Heating systems Control valve Control Cyclic time Hysteresis Warm water heating Electrothermal PWM 15 min. None Inlet temperature 40 C to 70 C Warm water heating Electrothermal Two-step None 1 K Inlet temperature < 40 C PWM 15 min. None Floor heating Electrothermal PWM min. None Air convector Electrothermal Two-step None 1 K Electric heating Electrothermal PWM min. None Two-step None 1 2 K Air conditioning Control valve Control Cyclic time Hysterese systems Air convector Continuous Continuous None None Cooling ceiling Electrothermal PWM min. None Two-step None 1 K Electric cooler Electrothermal Two-step None 1 2 K 2-86 July 2000

6 for continuous control value heat 0 1 bit Operation mode Comfort mode 1 1 bit Operation mode Night operation 2 1 bit Operation mode Frost/heat protection 3 1 bit Operation mode Dewpoint mode 4 1 bit Operation mode Push button 5 2 byte Display Current setpoint 6 2 byte Display Room temperature 7 1 byte Control value Heat 8 1 bit Signal Installation is heating 9 1 byte Status Control status 10 2 byte Parameter Base setpoint for continuous control value cool 7 1 bit Signal Installation is cooling 8 1 byte Control value Cool for continuous control value heat and cool 7 1 byte Control value Heat 8 1 byte Control value Cool for switching control value heat and cool 7 1 bit Control value Heat 8 1 bit Control value Cool for switching control value heat 7 1 bit Control value Heat 8 1 bit Signal Installation is heating for switching control value cool 7 1 bit Signal Installation is cooling 8 1 bit Control value Cool July

7 for continuous 2-step heat 7 1 byte Control value Basic heating 8 1 byte Control value Additional heating for switching 2-step heat 7 1 bit Control value Basic heating 8 1 bit Control value Additional heating for continuous 2-step cool 7 1 byte Control value Basic cooling 8 1 byte Control value Additional cooling for switching 2-step cool 7 1 bit Control value Basic cooling 8 1 bit Control value Additional cooling for individual output of control status 9 1 bit Status Control status 2-88 July 2000

8 Parameters The default setting for the values is printed in bold type. The complete parameter list is only displayed in the High Access setting. Configuration of heating/cooling system: Activation of heat / cool function heat cool heat and cool 2-step heat 2-step cool For heat or heat and cool : Type of heat function continuous PI control PWM control continuous two-step control switching two-step control Only for PI or PWM control: Adaptation of PI control to the warm water heating (5K / 150min) heating system For adaptation via control parameter: Proportional range for heating 40 in 0.1 K [10255] Readjust time for heating 120 in 1 min [0255] (0: inactive) Only for two-step control: Hysteresis of the two-step heat 10 controller in 0.1 K (0255) floor heating (5K / 240min) electric heating (4K / 100min) air convector (4K / 90min) SplitUnit (4K / 90min) via control parameter For cool or heat and cool : Type of cooling function continuous PI control PWM control continuous two-step control switching two-step control Only for PI or PWM control: Adaptation of PI control to the cooling ceiling ( 5K / 240min) cooling system For adaptation via control parameter: Proportional range for cooling 40 in 0.1 K [10255] Readjust time for cooling 120 in 1 min [0255] (0: inactive) Only for two-step control: Hysteresis of the two-step cooling 10 controller in 0.1 K (0255) air convector (4K / 90min) SplitUnit (4K / 90min) via control parameter For 2-step heat : Type of basic system continuous PI control PWM control continuous two-step control switching two-step control Only for PI or PWM control: Adaptation of PI control to the basic warm water heating (5K / 150min) heating system For adaptation via control parameter: Proportional range for additional 40 system in 0.1 K [10255] Readjust time for additional system 120 in 1 min [0255] (0: inactive) floor heating (5K / 240min) electric heating (4K / 100min) air convector (4K / 90min) SplitUnit (4K / 90min) via control parameter July

9 Only for two-step control: Hysteresis of the two-step controller 10 of the basic heating in 0.1 K (0255) Type of additional system continuous PI control switching PI control continuous two-step control switching two-step control Only for PI control: Adaptation of PI control to the warm water heating (5K) additional heating system For adaptation via control parameter: Proportional range for additional 40 system in 0.1 K [10255] Only for two-step control: Hysteresis of the two-step controller of 5 the add. heating in 0.1 K (0255) floor heating (5K) electric heating (4K) air convector (4K) SplitUnit (4K) via control parameter For 2-step cool : Type of basic system continuous PI control PWM control continuous two-step control switching two-step control Only for PI or PWM control: Adaptation of PI control to the cooling ceiling (5K / 240min) basic cooling system air convector (4K / 90min) SplitUnit (4K / 90min) via control parameter For adjustment via control parameter: Proportional range for basic system 40 in 0.1 K [10255] Readjust time for basic system 120 in 1 min [0255] (0: inactive) Only for two-step control: Hysteresis of the two-step controller of 10 the basic cooling in 0.1 K (0255) Type of additional system continuous PI control switching PI control continuous two-step control switching two-step control Only for PI control: Adaptation of PI control to the cooling ceiling (5K) additional cooling system For adaptation via control parameter: Proportional range for additional 40 system in 0.1 K [10255] Only for two-step control: Hysteresis of the two-step controller of 5 the add. cooling in 0.1 K (0255) air convector (4K) SplitUnit (4K) via control parameter 2-90 July 2000

10 Setpoints: Base setpoint 21 in 1 C (7 40) Scaling of setpoint adjustment button 3 in 1 K (010) For heat and cool : Reduced heating in standby mode 20 Reduced heating during the night 40 Setpoint for frost protection 7 in 1 C (7 40) Increased cooling in standby mode 20 Increased cooling during the night 40 Setpoint for heat protection 35 in 1 C (7 45) Insensitive range between heat and 20 cool in 0.1 K (0 255) For 2-step heat : Reduced heating in standby mode 20 Reduced heating during the night 40 Setpoint for frost protection 7 in 1 C (7 40) Distance from basic to additional 20 system in 0.1 K (0255) For 2-step cool : Increased cooling in standby mode 20 Increased cooling during the night 40 Setpoint for heat protection 35 in 1 C (7 45) Distance from basic to additional 20 system in 0.1 K (0255) July

11 Configuration of functionality: Only for heat and cool : Assignment of control values to the separate objects heat and cool jointly to object heat Only for separate control values: Toggle between heat and cool automatic with object heat/cool Only for 2-step heat or 2-step cool : Selection between functions/objects blockable additional step external push button - access Meaning of object status control status (EIS6) comfort mode (EIS1) standby mode (EIS1) night mode (EIS1) frost/heat protection (EIS1) dewpoint mode (EIS1) heating (EIS1) control inactive (EIS1) frost alarm (EIS1) Reaction to push button action normal (vandal mode) push button without function Function of push button status if delete status of push buttons night object => 0 recreate status of push buttons Function of push button status if do not change status of push buttons comfort object => 0 delete status of push buttons Duration of the ext. comfort operation in 60 1 min [0255] (0: infinite) Control active inactive Measurement of room temperature: Adjustment of setpoint/actual 5 temperature for autom. sending in 0.1 K (0: inactive) Direction of adjustment of room increase measurement value temperature measurement decrease measurement value Adjustable value of room temperature 0 measurement in 0.1 K [0 127] Control value output: Only for heat : Output of control value heat normal inverted Only for cool : Output of control value cool normal inverted Only for heat and cool : Output of control value heat normal inverted Output of control value cool normal inverted Only for 2-step heat or 2-step cool : Output of control value for base level normal inverted Output of control value for additional normal level inverted 2-92 July 2000

12 Ädjustment for automatic sending 5 in 1% [0100] (0: inactive) ONLY FOR CONTINUOUS! Cyclic time of the switching control 90 value in 10 sec. [1255] ONLY FOR PWM! Cyclic time for automatic sending inactive / 2 min / 10 min / 40 min Filter control value output do not filter only 1 telegram per minute July