ABB i-bus® KNX Room Thermostat Fan Coil with

ABB i-bus® KNX Room Thermostat Fan Coil with
Intelligent Installation Systems
ABB i-bus® KNX
Room Thermostat Fan Coil with
Display 6138/11-xx-500
Product Manual
TemABB i-bus£ KNX
Contents and document history
Page
1
General.................................................................................................3
1.1
Overview of Product and Functions......................................................4
2
Technology..........................................................................................5
2.1
2.2
2.3
2.4
2.5
Technical data.......................................................................................5
Connection diagram..............................................................................7
Dimensional drawing ............................................................................7
Assembly and installation .....................................................................8
Operation and display.........................................................................11
3
Commissioning .................................................................................12
3.1 Application program for the ambient temperature controller ..............12
3.2 Parameters .........................................................................................13
3.2.1 Parameter window "General"..............................................................13
3.2.2 "Temperature Measurement" parameter window ...............................17
3.2.3 Parameter window "Controller general".............................................20
3.2.4 Parameter window "Controller heating".............................................24
3.2.5 Parameter window "Controller PWM heating" ...................................29
3.2.6 Parameter window "Controller cooling" .............................................31
3.2.7 Parameter window "Controller PWM cooling" ...................................36
3.2.8 Parameter window "Additional heating stage"...................................38
3.2.9 Parameter window "Additional cooling stage" ...................................40
3.2.10Parameter window "Setpoint general" ...............................................42
3.2.11Parameter window "Setpoint manual" ...............................................45
3.2.12Parameter window "Setpoint heating / cooling".................................48
3.2.13Parameter window "Fan Coil general" ................................................53
3.2.14Parameter window "Fan Coil heating" ................................................56
3.2.15Parameter window "Fan Coil cooling".................................................59
3.2.16Parameter window "Compensation" ...................................................62
3.3 Communication objects ......................................................................66
3.3.1 General ...............................................................................................66
3.3.2 Control system ....................................................................................67
3.3.3 Setpoints .............................................................................................70
3.3.4 Control value.......................................................................................72
3.3.5 Heating / cooling .................................................................................73
3.3.6 Fan automatic / manual ......................................................................74
3.3.7 Monitoring ...........................................................................................76
3.3.8 Temperature alarm .............................................................................77
3.3.9 Status byte ..........................................................................................78
3.3.10Compensation.....................................................................................79
3.3.11Fan stage - state.................................................................................80
3.4 Special operating states .....................................................................81
4
Planning and use ..............................................................................82
4.1 Operating modes ................................................................................82
4.1.1 Operating mode switching 1 bit ..........................................................83
4.1.2 Operating mode switching 1 byte .......................................................83
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Contents and document history
4.2
4.2.1
4.2.2
4.2.3
4.2.4
4.3
4.3.1
4.3.2
4.3.3
4.3.4
4.3.5
4.3.6
4.4
4.4.1
4.4.2
4.4.3
4.5
4.6
4.6.1
4.6.2
Temperature measurement ................................................................85
Internal temperature recording ...........................................................85
External temperature recording ..........................................................85
Monitoring ...........................................................................................85
Adjustment ..........................................................................................86
Controller ............................................................................................87
2-point controller .................................................................................88
Continuous controller..........................................................................89
PWM controller ...................................................................................90
Fan Coil...............................................................................................91
Control parameters with PWM and continuous controller (fan coil) ...91
Two-stage heating and cooling...........................................................92
Setpoints .............................................................................................93
Dependent setpoints...........................................................................93
Individual setpoints .............................................................................94
Minimum distance...............................................................................95
Fan Coil general .................................................................................96
Compensation.....................................................................................98
Summer compensation.......................................................................98
Winter compensation ..........................................................................99
This manual describes the function of the room temperature controller with display
using the "Display, Operate, Control Fan Coil/1.2" application program.
We reserve the right to make technical change and cannot accept responsibility
for errors.
Limitation of liability
The contents of this document have been carefully checked to ensure that they
conform to the hardware and software, but it is impossible to exclude all deviation.
Therefore, we cannot accept any liability. Any corrections required will be made
in future versions of this manual.
Please inform us of any suggestions for improvement.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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1
General
General
The Fan Coil ambient temperature controller with display is a continuous
KNX ambient temperature controller for fan convectors in 2 and 4-pipe
systems. It measures the current ambient temperature (actual value) and
sends a continuous manipulated variable (0 - 100%) to a fan coil actuator
to maintain the desired ambient temperature. The device operates in both
heating and cooling mode.
Hotel management systems can directly access the Fan Coil ambient
temperature controller with display via KNX and trigger controllers in the
room. The fan speed can also be selected manually with buttons (forced
operation). This makes it possible to adjust the hotel room temperature
as required by the customer or guest.
The device can be linked to the functions of the RM/S master room controller
and FCA/S fan coil actuator via the KNX.
This manual contains detailed information on the Fan Coil ambient
temperature controller with display, its installation and programming.
The operation of the device is explained using examples.
The manual is divided into the following sections:
Section 1
General
Section 2
Technology
Section 3
Commissioning
Section 4
Planning and Application
Section A
Appendix
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1.1
General
Overview of Product
and Functions
The Fan Coil ambient temperature controller with display records the current
room temperature and controls the heating and/or cooling. It also controls 2
and 4-pipe Fan Coil units and conventional air-conditioners.
The device is surface-mounted without a frame and is available in white
and aluminium-silver.
The display is backlighted for easier reading.
The device supports all functions for international hotel applications. It can
operate with the following operating modes: heating/cooling, heating only
and cooling only.
The ambient temperature controller is fitted with push-switches and an
LC display to show the current operating modes and values. The ambient
temperature controller is very easy and intuitive to operate with the use of
international symbols on the push-switches and in the display. The device
has five push-switches:
-
ON/OFF, comfort/standby switch
-
Temperature up
-
Temperature down
-
Fan stage adjustment
-
Switch display of units °C/°F
The sensor is a surface-mounted device and does not require a cover frame.
A bus terminal is included for connection to the ABB i-bus®. A separate bus
coupling unit is not required. The Fan Coil ambient temperature controller
with display does not require an auxiliary power supply. The Engineering
Software Tool (ETS from version ETS°2°V1.3a) is used to assign the
physical address and set the parameters using a VD2 file, which is also
imported for use with ETS°3.
Note
The pictures of the parameter window in this manual correspond to
the ETS 3 parameter windows.
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2
Technology
Technology
The Fan Coil ambient
temperature controller with
display records the current room
temperature and controls the
heating and/or cooling. It also
controls 2 and 4-pipe Fan Coil
units and conventional airconditioners.
The device is surface-mounted
without a frame and is available
in white and aluminium-silver.
A bus terminal is included for
connection to the KNX. A separate
bus coupling unit is not required.
The ambient temperature
controller is fitted with pushswitches and an LC display
to show the current operating
modes and values.
2.1
Technical data
Power supply
Connections
Control and display elements
-
Bus voltage
Current consumption
KNX
Temperature sensors
- LCD display
- "ON/OFF“ put-switch [ON/OFF
comfort/standby optional]
- "Temperature up" push-switch
- "Temperature down“ push-switch
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
21...30 V DC over the bus
Type. 10 mA
Bus terminal
Accuracy of temperature sensor +/- 0.3 K
(can be calibrated by parameters)
Sensor type: NTC
The LCD can be lighted if required.
Use the "Lighting Display" parameter. This allows
the LCD lighting to be always on or always off,
or to be lighted after pushing a switch and remain
on for 5 seconds.
If freezing protection is not activated: ambient
temperature control is switched to freezing
protection. "OFF" shown on display. If freezing
protection is activated: ambient temperature control
operates in the mode that it would have had without
being switched off. If the optional ON/Off
comfort/standby operating mode is selected,
the device switches between comfort and standby
when a push-switch is pressed briefly, and switches
OFF if the switch is pressed for a longer period
(> 500 ms).
In night mode the settemperatur can be manipulated
till the next change of operating mode happens.
When a push-switch is pressed, the set temperature
is changed by a configurable value (0.1K / 0.2K /
0.5K / 1K). The display is switched to "Set
Temperature". The actual temperature is displayed
again 5 seconds after the last push-switch
actuation, if this has been configured. If the optional
mode "Enable extended button press for switching
heating/cooling set value" is enabled, the device
switches to the heating set value when the switch
is pressed and held (1s).
When a push-switch is pressed, the set temperature
is changed by a configurable value (0.1K / 0.2K /
0.5K / 1K). The display is switched to "Set
Temperature". The actual temperature is displayed
again 5 seconds after the last push-switch
actuation, if this has been configured. If the optional
mode "Enable extended switch press for switching
heating/cooling set value" is enabled, the device
switches to the heating set value when the switch
is pressed and held (1s).
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Technology
- "fan stage adjustment"
- °F/°C switching
Protection
Protection class
Insulation category
Temperature range
Ambient condition
Type, case, design
-
IP 20
III
overvoltage category III
pollution severity 2
Use
Storage
Transport
maximum relative humidity
Maximum air pressure
AP device with integrated bus coupler
(no additional supply voltage)
- Dimensions HxWxD
- Colour
- Device labels
When the switch is pressed, the device runs through
the sequence "1
2 3
Auto 0 1 ...“
starting from the current fan stage. If the fan is set
to automatic, this is deactivated when the switch
is first pressed and the next fan stage is activatedThis push-switch switches the display between °C
and °F.
Acc. to DIN EN 60529
Acc. to DIN EN 61140
Acc. to DIN EN 60664-1
Acc. to DIN EN 60664-1
- 5°C...+45°C
-25°C...+55°C
-25°C...+70°C
93% non-condensing
equivalent to 2000 m
Case: 81x81x20 mm
Display: 51x39 mm
white, aluminium-silver
function symbols on the case
- ON/OFF
- fan switching
- temperature up
- temperature down
- °F/°C switching
- Fire classification V0
- RoHs-compliant and halogen-free
Installation
Licence
CE marking
Application program
Fan Coil displays controls
adjustments/1.2
-
monoblock device, bus connection
- surface-mounted installation with holder
(design part)
- KNX acc. to EN 50 090-1, -2
- acc. to EMC and
Low-Voltage Directives
Quantity
Communication objects
47
Max. quantity
Group addresses
254
Max. quantity
Allocations
255
Note
ETS 2 V 1.3 or higher is required for programming.
The application program is in ETS 2 / ETS 3 at ABB/Heating,
Air-conditioning, Ventilation/Thermostat.
Note:
The device does not support the close function of a project
or the KNX device in the ETS. If access to all devices of
the project is blocked by a BA password (ETS 2) or a BCU key
(ETS 3), it will not have any effect on this device. It can still
be read and programmed.
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2.2
Technology
Connection diagram
+
-
EIB/KNX
Bus
Connection diagram of Fan Coil ambient temperature controller with display
2.3
Dimensional drawing
39
81
51
20
81
Dimensional drawing of Fan Coil ambient temperature controller with display
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2.4
Technology
Assembly and installation
The Fan Coil with display ambient temperature controller is a surfacemounted device (AP) with an integrated bus coupler. The device operates
without additional supply voltage. It can be installed on flush-mounted
sockets (UP) (VDE, China, British Standard).
Selection of a suitable installation location for the controller and suitable
parameter settings are essential for good temperature detection.
-
The ambient temperature
controller should be
installed approximately
150 cm above the floor
and 50 cm from the door
frame.
-
The ambient temperature
controller should be
installed on a wall opposite
the radiator.
-
The radiator and the
ambient temperature
controller must not be
separated by corners
in the room.
-
An ambient temperature
controller should not be
installed near a radiator
or behind curtains.
-
It should also not be
installed on an exterior
wall - low outside
temperatures will
influence the temperature
regulation.
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Technology
-
The ambient temperature
controller must not be
exposed to direct contact
with liquids.
-
Temperature regulation
will also be affected by
exposure to heat from
electrical appliances and
direct sunlight on the
ambient temperature
controller.
Requirements for commissioning
A PC with ETS (ETS 2 V1.3a or higher) and a connection to the ABB i-bus®,
e.g. over a KNX interface, is required to commission the device.
The device is ready for operation once it is connected to the bus voltage.
Auxiliary voltage is not required.
The device must be installed and commissioned by a qualified electrician
only. The relevant standards, directives, regulations and requirements
for planning and installation of electrical systems must be observed.
-
The device must be protected from moisture, dirt and damage during
transport, storage and operation.
-
The device must be operated in accordance with the specified technical
data only.
Delivery status
The device is delivered with the physical address 15.15.255. Application
program, group addresses and parameters must be loaded during
commissioning.
Assigning the physical address
The physical address, group address and parameters are assigned in
the ETS.
Cleaning
The device can be cleaned with a dry cloth if it is dirty. If this is not sufficient,
use a cloth lightly moistened with a detergent solution. Never use aggressive
cleaners or solvents.
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Technology
Maintenance
The device is maintenance-free. It must not be repaired by third parties if it
is damaged, such as in transport and/or storage. The guarantee is cancelled
if the device is opened.
The device must be accessible at all times for operation, testing, inspection,
maintenance and repair (acc. to DIN VDE 0100-520).
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2.5
Technology
Operation and display
Messages
Internal Temp error
External Temp error
Outdoor Temp error
Actuator error
Dewpoint
Condensate alarm
Error value
IA
EA
OA
AA
dP
CA
EU
Heating setpoint adjustment:
Cooling setpoint adjustment:
– Fault in internal temperature sensor
– Update of external temperature not received ->
– Update of outside temperature not received ->
– Update of actuator not received ->
– Dewpoint alarm
– Condensate collector alarm
– Value outside permissible range received
– Value is rejected
Display of HEAT and heating symbol
Display of COOL and cooling symbol
If the actual temperature is permanently displayed (standard), the set
temperature is displayed by the symbol "Manual setpoint adjustment".
The firmware status is shown in the display after a voltage reset.
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3
3.1
Commissioning
Commissioning
Application program
for the ambient
temperature controller
The Fan Coil Display Operate Control/1.2 application program for the Fan
Coil ambient temperature controller with display controls the device for
heating, cooling or heating and cooling. The ETS shows different parameters
and communication objects depending in the functions selected in the
"Control Function in Use" parameter.
A "2-point control", a "PWM control", a "Continuous control" or a "Fan Coil
Actuation" can be implemented for heating and/or cooling in all controller
functions. A supplementary stage for heating and also for cooling can also
be actuated.
A temperature value can also be received by an additional temperature
sensor via the KNX for improved temperature control in larger rooms.
The measured value is then applied to the ambient temperature control
with a defined weighting.
The ambient temperature controller can be operated with dependent or
individual setpoints. Dependent setpoints mean that the setpoints in standby
and night mode are always based on the basic setpoint, and with individual
setpoints a separate setpoint can be set for every operating mode.
(See also page 93 in Section 4.4 Setpoints at Planning and Application.)
The ambient temperature controller with display has summer compensation
to save energy and to maintain a reasonable temperature difference when
entering an air-conditioned building. A winter compensation function can
also be activated to maintain a pleasant temperature in rooms with large
areas of window during cold weather. (See also page 98 in Section
4.6 Compensation at Planning and Application.)
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3.2
3.2.1
Commissioning
Parameters
Parameter window
"General"
Send "In operation" object
Options:
- No
- Send value “0” cyclic
- Send value “1” cyclic
The "In operation" object reports to the bus that the device is operating
correctly. This periodic message can be monitored by an external device.
The following parameters are shown:
transmission period in s [1...65.535]
Options:
- 1...60...65.535
The period at which the "In operation" object sends a message
periodically is set here.
Enable switchover of temperature display via button °C/°F
Options:
- Yes, standard °C
- Yes, standard °F
- No, standard °C
- No, standard °F
This parameter enables the °C/°F push-switch. The user can then switch
the temperature display from °C to °F. The temperature is always converted
from °C to °F in the Fan Coil ambient temperature controller with display,
because only °C values can be sent to the KNX.
If the "No" setting has been made, the °C/°F push-switch has no function
and the user cannot change the display.
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Commissioning
Display during normal operation
Options:
- No temperature display
- Absolute setpoint temperature
- Relative setpoint temperature (+/-K)
- Current setpoint
Use this parameter to specify what information is displayed in the
temperature sensor mode. The current temperature, the current setpoint,
the relative current setpoint (adjustable setpoint) or no temperature can
be displayed.
Display in adjusting mode
Options:
- Absolute setpoint temperature
- Relative setpoint temperature (+/-K)
Use this parameter to specify what information is displayed in the
adjustment mode. The setpoint temperature or the relative current setpoint
(adjusted setpoint) can be displayed.
Display heat/cool is active
Options:
- If operating mode is active
- When requesting heating or cooling
The heat/cool parameter shows the configuration either for "When
requesting heating or cooling" or "If operating mode is active". The initial
setting shows only heat or cool, if the system is actually heating or cooling.
Display illumination
Options:
- Always On
- Always Off
- 5 seconds recovery time
Use this parameter to set the LCD backlighting. It can be on at all times,
off at all times, or it switches off automatically 5 s after an actuation.
Note:
If the 1-bit communication object "lighting" receives an On message,
the backlighting remains on until an Off message is received.
Operating mode switchover
Options:
- 1 Bit (3 x DPT_Switch)
- 1 Byte (2 x DPT_HVACmode)
Switching operating mode defines whether the ambient temperature
controller has three 1-bit communication objects, "Comfort/Standby",
"Night Mode" or "Freezing/Heat Protection", or two 1-byte communication
objects for switching operating mode.
If an ON message is received by the Comfort/Standby object in 1-bit
switching operating mode, the Comfort operating mode is activated.
If an OFF message is received Standby mode is activated.
If an ON message is received by the Night Mode object, night operating
mode is activated. An OFF message deactivates Night Mode.
Freezing/Heat Protection mode is also activated with an ON message
and deactivated with an OFF message.
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Commissioning
If an ON message is received by multiple objects, Freezing/Heat Protection
has a higher priority than Comfort Mode. Night reduction has a higher
priority than Comfort Mode.
When switching operating mode via 1 byte two 1-byte communication
objects are available.
Note: the two 1-byte communication objects have different behaviour when
receiving a message. One object evaluates received messages "normally".
This means, for example, if a comfort telegram is received, the room
thermostat switches to comfort mode. If a night telegram is received, the
ambient temperature controller switches to night mode. This object is
controlled, for example, by time switches.
The second object can "overwrite" the first object temporarily. This means,
for example, if a Freezing/Heat Protection telegram is received, the ambient
temperature controller switches to Freezing or Heat Protection mode.
If freezing or heat protection is reset by another message, the ambient
temperature controller activates the operating mode pending at the "normal"
object. As a result, it is capable of noting operating modes.
The following applies to the 1-byte communication object:
0 = Auto
1 = Comfort
2 = Standby
3 = Night
4 = Freezing/Heat Protection
5 – 255 = not allowed
Enable switchover of comfort/standby via button On/Off
Options:
Yes
No
Use this parameter to enable switching between operating modes with the
ON/OFF switch. If "No", ... is set here, the push-switch is used for switching
the device on and off by pushing and holding (500 ms), if "Yes" is set, the
operating mode can be switched from Comfort to Standby and vice versa
by pushing and releasing the push-switch and the device is switched off by
pushing and holding it (> 500ms). If the device is switched off and switched
on with the ON/OFF push-switch, Comfort mode is set.
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Commissioning
Operation mode after reset
Options:
- Comfort operation
- Standby
- Night mode
- Frost/heat protection
This parameter specifies the mode activated after resetting the temperature
sensor or after commissioning. Comfort mode is default, however Standby,
Night mode or Frost/heat Protection can also be selected.
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3.2.2
Commissioning
"Temperature
Measurement" parameter
window
Offset for room temp. meas.
(measured value changed by (-128..127)x0.1 K)
Options:
- -128
-…
-0
-…
- 127
Value range –128..127 corresponds to –12.8K..12.7K
If the actual temperature is recorded internally, it may be falsified by an
additional internal heat source, e.g. bus or network coupler. The falsified
value can be adjusted with the setting "calibration value for ambient
temperature measurement".
Setpoint larger when sending change
Options:
- Inactive
- 0.1 K
- 0.2 K
- 0.3 K
- 0.4 K
- 0.5 K
- 0.6 K
- 0.7 K
- 0.8 K
- 0.9 K
- 1.0 K
If this parameter is set to a difference, the associated 2-byte communication
object "Current temperature" sends its current temperature whenever this
parameter changes.
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Commissioning
Send setpoint cyclic (0 – inactive, min)
Options:
- 0 .. 60
If the current value is to be sent cyclically independent of a change,
the parameter "Send setpoint cyclic" must be set to a time. This may be
necessary, for instance, with a higher-level boiler that expects to receive
setpoints and current values within a certain time period. If values are not
received, a predefined supply line temperature is set that is no longer
oriented on actual demand.
Measurement of room temperature
Options:
- Interior
- Exterior
- Interior and exterior
This parameter is used to set the measurement of the current temperature.
It can be measured "Interior," "Exterior" or "Interior and Exterior". Internal
measurement means that the temperature is taken directly from the room
thermostat. For external measurements, an additional temperature sensor is
used and is sent to the room thermostat via 2-byte communication object. If
you are measuring current temperature internally and externally, the room
thermostat determines the current temperature from the combination of
temperature values defined in the "Emphasis internal/external" parameter.
An additional sensor may need to be added for larger spaces.
Weighting interior / exterior
Options:
- 10% / 90%
- 20 % / 80 %
- 30 % / 70 %
- 40 % / 60 %
- 50 % / 50 %
- 60 % / 40 %
- 70 % / 30 %
- 80 % / 20 %
- 90 % / 10 %
The "Weighting interior / exterior” specifies whether the internal temperature
sensor for the ambient temperature controller is included in the control.
If, for instance, the parameter is set to 60%, the current temperature is 60%
of the temperature measured internally and 40% of the value obtained
externally.
Monitoring temperature measurement
Options:
- Yes
- No
The "Monitoring temperature measurement" parameter defines whether
the internal and, if connected, external temperature sensors are to be
monitored.
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Commissioning
Control value at temp. measuring error
Options:
- Final value
-0%
- 10 %
- 20 %
- 30 %
- 40 %
- 50 %
- 60 %
- 70 %
- 80 %
- 90 %
- 100 %
In case of error the device output uses the specified value to run an
emergency function.
Monitoring time exterior temperature (0 – inactive, min)
Options:
- 0 / 1 / … / 10 / ... / 60
If the "Monitoring temperature measurement" parameter is set to "yes",
the time within which the external temperature sensor must send a message
to the bus is set here.
Monitoring time exterior temperature (0 – inactive, min)
Options:
- 0 / 1 / …/ 10 / … / 60
If the "Monitoring temperature measurement" parameter is set to "yes",
the time within which the outside temperature sensor must send a message
to the bus is set here.
Offset for ext. temp. meas.
(measured value changes by (-128..127)x0,1 K)
Options:
- -128
-…
-0
-…
- 127
Value range –128..127 corresponds to –12.8K..12.7K
The measured outside temperature can be adjusted with this parameter.
This means that if the outside temperature is falsified by heat or cooling
effects at the temperature sensor, the measured value can be adjusted
up or down.
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3.2.3
Commissioning
Parameter window
"Controller general"
Operating mode of unit
Options:
- Normal operation with control function
- Ext. input, only operating and display function
The control function of the device is deactivated in the "Ext. input, only
operating and display function" setting. The device is used to
1. control another unit, such as switching on and off, setpoint input,
fan stage, °C/°F switching
2. display, such as current temperature
3. recording current temperature
All unwanted communication objects and parameters are not shown.
The user cannot see whether it is normal mode or branch.
Used control functions
Options:
- Heating
- Cooling
- Heat and cool
The parameter "Used control functions" allows you to define the functionality
of the room thermostat. You can choose between "Heating" or "Cooling"
functions, or use it for both "Heat and cool". Once you have selected
a function, only the parameters and communication objects required for
that function are shown. This setting is only shown if the operating mode
of the device is set to normal mode with control function.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
Commissioning
Switchover between heating and cooling
Options:
- Automatic
- Automatic and send
- Exterior
You can switch between heating and cooling automatically in the room
thermostat. To do so, select the "Automatic" option. This ensures that the
room thermostat checks the configured setpoints for heating and cooling.
The option "Automatic and send" also allows you to switch automatically.
In addition, a toggle telegram is sent and can be analysed by other room
thermostats. The "Exterior" option allows you to switch via an associated
1-bit communication object.
Additional heating stage active
Options:
- Yes
- No
In specific instances such as when using underfloor heating, it may be
necessary to install a quick additional stage for the heat control in order
to warm up the room rapidly. When the ambient temperature controller is
set to "Yes", it has a second heating system with switching control (1-bit) or
continuous control (1-byte).
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used.
Additional cooling stage active
Options:
- Yes
- No
In specific instances, it may be necessary to install a quick additional stage
in the cooling control in order to cool off the room rapidly. When the ambient
temperature controller is set to "Yes", it has a second cooling system with
switching control (1-bit) or continuous control (1-byte) 100%.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
Commissioning
Condensate alarm active
Options:
- Yes
- No
If the parameter "Condensate alarm active" is activated, the room
thermostat has a 1-bit communication object that can be used to send
telegrams from a container for condensate water. When an ON telegram
arrives, the room thermostat changes to the heat protection mode. Heat
protection is deactivated when an OFF telegram is received. This prevents
condensate, which can collect during cooling, from overflowing the
condensate container.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used.
If a condensate collector alarm is detected, it is shown in the display
(fault symbol plus abbreviation).
The frost protection object is sent in the event of a condensate alarm if
the flag is set to send. If the condensate alarm is corrected and there is
no dewpoint alarm, the device switches from heat protection back to the
operating mode from the "operating mode after reset and Off" parameter.
Dew-point alarm active
Options:
- Yes
- No
If the parameter "Dew-point alarm active" is activated, the room thermostat
has a 1-bit communication object that can be used to send telegrams from
a dew point sensor. When an ON telegram arrives, the room thermostat
changes to the heat protection mode. Heat protection is deactivated when
an OFF telegram is received. This prevents the condensate that forms
during incipient condensation when cooling is switched on from causing
damage.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used.
If a dewpoint alarm is detected, it is shown in the display (fault symbol plus
abbreviation).
The frost protection object is sent in the event of a dewpoint alarm if the flag
is set to send. If the dewpoint alarm is corrected and there is no condensate
collector alarm, the device switches from heat protection back to the
operating mode from the "operating mode after reset and Off" parameter.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
Commissioning
Operation mode after reset
Options:
- Heating
- Cooling
- Dependent on object “switchover heat / cool”
This parameter specifies the mode activated after resetting the temperature
sensor or after commissioning,
if heating/cooling switching is set to external.
Heating is preset, otherwise the operating mode can depend on the value
of the heating/cooling object. The device queries the value of the object over
the bus during initialisation.
Note:
The selection option "Dependent on object switchover heat / cool" is only
shown if the "switching between heating and cooling" is set to "Exterior".
Number of output channels
Options:
- 1 channel (dual pipe system) for heat / cool
- 2 channels (four-pipe system) for heat / cool
If the "used control functions" parameter has been selected, it can be used
to specify whether a separate communication object or a common
communication object for heating or cooling is provided for the control value.
The setting "1 channel (dual pipe system) for heat / cool" is required for dual
pipe systems and the setting "2 channels (four-pipe system) for heat / cool"
is required for four-pipe systems.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
3.2.4
Commissioning
Parameter window
"Heating control"
Status send heat requirement
Options:
- Yes
- No
If you set the "Status send heat requirement" to "yes", the ambient
temperature controller will send an ON telegram via the relevant 1-bit
communication object once it is in heating mode. If the room thermostat is in
the "insensitive range" between heating and cooling or in cooling mode, the
thermostat sends an OFF telegram via the status heating object.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are set.
Cycle time heating control value sending (0 - inactive, min)
Options:
- 0 / 1 / … / 60
The room thermostat can send the control value, even if the value remains
unchanged. This is often required since the connected actuator otherwise
assumes that the room thermostat is no longer available. This enables
the actuator to activate its force-position control, which is only deactivated
when a new control value is received.
The cycle time for automatic sending of the control value is adjustable
from 1 to 60 min. Cyclic sending can also be disabled (setting 0).
This parameter is only available if the "Heating" or "Heat and cool" control
functions are set.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
24
ABB i-bus£ KNX
Commissioning
Control mode
Options:
- 2-step
- PWM
- Continuous
- FanCoil
This function allows you to specify the mode of control. You can select
"2-step control", "PWM control", "Continuous control" or "FanCoil actuation"
(see also page 87 and following).
This parameter is only available if the "Heating" or "Heat and cool" control
functions are set.
Note: the fan can be set with a push-switch in Fan Coil only. The pushswitch has no function with other control types and fan stage display is
hidden.
Hysteresis
Options:
- 0.0 K
- 0.1 K
- 0.2 K
- 0.3 K
- 0.4 K
…
- 1.0 K
…
- 2.0 K
Set a hysteresis value to ensure that the valve does not constantly switch
with each minor under and overshoot when using 2-step control of the
actuator. The hysteresis value lies around the setpoint. For example, if
the setpoint is 21 °C and the hysteresis is 1 K, the room thermostat only
sends an "on" signal at 21.5 °C and an "off" signal at 20.5 °C.
This parameter is only available if "2-step control" is set as the control type.
Invert heating
Options:
- Yes
- No
"Invert heating" is used to adjust the direction of control action of the control
value to "de-energised open" or "de-energised closed" valves.
This parameter is only available if "2-step control" is set as the control type.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
Commissioning
Control value larger when sending change
Options:
- 0%
-1%
-…
-5%
-…
- 15 %
The parameter "Control value larger when sending change" can be used to
influence the bus load. This setting is configured in percentages. The higher
the selected value, the fewer the control value telegrams sent by the room
thermostat. However, the value should not be set too high to ensure the
control works properly. A value of 5% will generally provide good control
results.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are set and the "Heating" control type is set to "Continuous" or
"FanCoil".
Control parameter
Options:
- Acc. to installation type
- free parameterization
This parameter allows you to configure the control based on the type
of system in use. The "Acc. to installation type" setting displays predefined
values for the different system types that most frequently provide good
control results. The setting "free parameterization" can be used to
individually update the proportional range and readjust time. Proper
knowledge in the field of control technology is required to use " free
parameterization ".
This parameter is only available if the "Heating" or "Heat and cool" control
functions are set and the heating control type is set to "PWM", "Continuous"
or "FanCoil".
Type of heating system
Options:
- Warm water heating (1.5 K / 100 min)
- Electric heating (1.5 K/50 min)
- Floor heating (4 K/200 min)
- Split unit (4 K / 90 min)
The "Type of heating system" parameter enables you to select the heating
system in use with predefined control parameters.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are set, the heating control type is set to "PWM", "Continuous" or
"FanCoil" and the control parameter is set to "via system type".
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
Commissioning
Proportional range (Xp)
Options:
- 0.5 K
- 1.0 K
- 1.5 K
- 2.0 K
- 2.5 K
- 3.0 K
- 3.5 K
- 4.0 K
- 4.5 K
- 5.0 K
- 5.5 K
…
- 10.0 K
The proportional range stands for the P amount of controller. It varies
around the setpoint and can be used to influence control speed with
a PI controller. The smaller the configured value, the faster it reacts to
the control. This value should not be configured too low, in order to avoid
risk of overshoot.
This parameter is only available if "free parameterization" is set as
the control parameter.
Readjust time
Options:
- 0 min
-10 min.
- 20 min.
-…
- 90 min
-…
- 240 min
The readjust time stands for the I amount of a controller. The integral
amount has the effect of moving the room temperature slowly toward and
finally to the setpoint. Depending on the system type used, the readjust
time has to have different values. In general, the more inactive the overall
system, the larger the readjust time.
This parameter is only available if "free parameterization" is set as
the control parameter.
Minimum control value
Options:
-0%
- 5%
- 10 %
- 15 %
- 20 %
- 25 %
- 30 %
This parameter is required if the ambient temperature controller with
constant control regulates a continuous actuator or a fan coil.
To prevent switching with control variables that are too small, the parameter
"minimum control value" can be set to a value so that the actuator only
switches on at larger control values.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are set and the "Heating" control type is set to "Continuous" or
"FanCoil".
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
Commissioning
Maximum control value
Options:
- 70%
- 75%
- 80 %
- 85 %
- 90 %
- 95 %
- 100 %
This parameter is required if the ambient temperature controller with
constant control regulates a continuous actuator or a fan coil.
To prevent switching with control values that are too high, the parameter
"maximum control value" can be set to a value so that the actuator switches
off at lower control values.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are set and the "Heating" control type is set to "Continuous" or
"FanCoil".
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
3.2.5
Commissioning
Parameter window
"Controller PWM heating"
Invert heating
Options:
- Yes
- No
"Invert heating" is used to adjust the direction of control action of the control
value to "de-energised open" or "de-energised closed" valves.
Cycle time PWM control value (min)
Options:
- 1 / 2 / … / 10 / … /60
With PWM control, the actuator switches the valve drive depending on
the control value. The control thereby checks the "Cyclic time of the PWM
control value".
Example: for a cyclic time of 10 min. and a control value of 60%, the valve
gear is switched on for 6 min. and off for 4 min.
Basically, the following applies for cyclic time: the more inactive the entire
system, the higher the cyclic time you can set.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used and the heating control type is set to "PWM".
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
Commissioning
PWM cycle is 0% up to control value
Options:
- 0%
-5%
-…
- 10 %
-…
- 30 %
If the control value is very small for PWM control, the switch-on period
for the actuator might not be sufficient to put in motion the connected
thermoelectric valve gear. A valve drive opens or closes by warming
or cooling an expansion element. However, it always takes time for the
element to heat up or cool off sufficiently to allow the valve to be opened
or closed. As a result, the valve might not even open with very small control
values.
The parameter "PWM cycle is 0% up to control value" can be used to
prevent switching with control values that are too small. This parameter
allows you to configure the control value at which the actuator switches on.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used and the heating control type is set to "PWM".
PWM cycle is 100% up to control value
Options:
- 70%
- 75 %
-…
- 90 %
-…
- 100 %
If the control value is very large for PWM control, the switch-off period
for the actuator might not be sufficient to put in motion the connected
thermoelectric valve gear. A valve drive opens or closes by warming
or cooling an expansion element. However, it always takes time for the
element to heat up or cool off sufficiently. As a result, the valve might
not even close with very large control values.
The parameter "PWM cycle is 100% down to an output value" can be used
to prevent switching with control values that are too large. It also sets
the control value from which the actuator switches off.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used and the heating control type is set to "PWM".
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
3.2.6
Commissioning
Parameter window
"Cooling control"
Status send cooling requirement
Options:
- Yes
- No
If you set the "Status send cooling requirement" to "Yes", the room
thermostat will send an ON telegram via the relevant 1-bit communication
object once it is in cooling mode. If the ambient temperature controller is in
the "insensitive range" between heating and cooling or in cooling mode, the
thermostat sends an OFF telegram via the status heating object.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used.
Cycle time cooling control value sending (0 - inactive, min)
Options:
- 0 / 1 / 2 / … / 60
The room thermostat can send the control value, even if the value remains
unchanged. This is often required since the connected actuator otherwise
assumes that the room thermostat is no longer available. This enables
the actuator to activate its force-position control, which is only deactivated
when a new control value is received.
The cycle time for automatic sending is adjustable. Cyclic sending can also
be disabled.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used and the control type is set to "2-step control",
"Continuous" or "FanCoil".
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
Commissioning
Control mode
Options:
- 2-step
- PWM
- Continuous
- FanCoil
This function allows you to specify the type of control. You can choose
from 2-step control, PWM control, Continuous control or FanCoil control.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used.
Hysteresis
Options:
- 0.0 K
- 0.1 K
- 0.2 K
- 0.3 K
…
- 1.0 K
…
- 2.0 K
Set a hysteresis value to ensure that the valve does not constantly switch
with each minor under and overshoot when using 2-point control of the
actuator. The hysteresis value lies around the setpoint. For example, if
the setpoint is 26 °C and the hysteresis is 1 K, the room thermostat when
cooling sends only an "on" signal at 25.5 °C and an "off" signal at 26.5 °C.
This parameter is only available if "2-step control" is set as the control type.
Invert cooling
Options:
- Yes
- No
"Invert cooling" is used to adjust the direction of control action of the
control value to "de-energised open" or "de-energised closed" valves.
This parameter is only available if "2-step control" is set as the control type.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
32
ABB i-bus£ KNX
Commissioning
Control value larger when sending change
Options:
- 0%
-1%
-…
- 5%
-…
- 15 %
The parameter "Control value larger when sending change" can be used to
influence the bus load. This setting is configured in percentages. The higher
the selected value, the fewer the control value telegrams sent by the room
thermostat. However, the value should not be set too high to ensure the
control works properly. A value of 5% will generally provide good control
results.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used and the cooling control type is set to "Continuous" or
"FanCoil".
Control parameter
Options:
- Acc. to installation type
- free parameterization
This parameter allows you to configure the control based on the type of
system in use. The "Acc. to installation type" setting displays predefined
values for the different system types that most frequently provide good
control results. The setting "free parameterization" can be used to
individually update the proportional range and readjust time. Proper
knowledge in the field of control technology is required to use "free
parameterization".
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used and the cooling control type is set to "PWM",
"Continuous" or "FanCoil".
Type of cooling system
Options:
- Cool ceiling (5 K / 240 min)
- Split unit (blower convector 4 K / 90 min)
The "Type of cooling" parameter enables you to select the cooling system
in use with predefined control parameters.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used and the cooling control type is set to "PWM",
"Continuous" or "FanCoil".
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
Commissioning
Proportional range (Xp)
Options:
- 0.5 K
- 1.0 K
- 1.5 K
- 2.0 K
- 2.5 K
- 3.0 K
- 3.5 K
- 4.0 K
- 4.5 K
- 5.0 K
- 5.5 K
- 6.0 K
- 6.5 K
- 7.0 K
- 8.0 K
- 9.0 K
- 10.0 K
The proportional range stands for the P amount of controller. It varies
around the setpoint and can be used to influence control speed with
a PI controller. The smaller the configured value, the faster it reacts to
the control. This value should not be configured too low, in order to avoid
risk of overshoot.
This parameter is only available if "free parameterization" is set as the
control parameter.
Readjust time (Tn)
Options:
- 0 min
-10 min.
- 20 min.
-…
- 90 min
-…
- 240 min
The readjust time stands for the I amount of a controller. The integral
amount has the effect of moving the room temperature slowly toward and
finally to the setpoint. Depending on the system type used, the readjust
time has to have different values. In general, the more inactive the overall
system, the larger the readjust time.
This parameter is only available if "free parameterization" is set as
the control parameter.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
34
ABB i-bus£ KNX
Commissioning
Minimum control value
Options:
- 0%
- 5%
- 10 %
- 15 %
- 20 %
- 25 %
- 30 %
This parameter is required if the ambient temperature controller
with constant control regulates a continuous actuator or a fan coil.
To prevent switching with control variables that are too small, the parameter
"minimum control value" can be set to a value so that the actuator only
switches on at larger control values.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used and the cooling control type is set to "Continuous" or
"FanCoil".
Maximum control value
Options:
- 70%
- 75%
- 80 %
- 85 %
- 90 %
- 95 %
- 100 %
This parameter is required if the ambient temperature controller
with constant control regulates a continuous actuator or a fan coil.
To prevent switching with control values that are too high, the parameter
"maximum control value" can be set to a value so that the actuator switches
off at lower control values.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used and the cooling control type is set to "Continuous" or
"FanCoil".
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
3.2.7
Commissioning
Parameter window
"Control PWM cooling"
Invert cooling
Options:
- Yes
- No
"Invert cooling" is used to adjust the direction of control action of the control
value to "de-energised open" or "de-energised closed" valves.
Cycle time PWM control value (min)
Options:
- 0 / 1 / 2 / … / 10 / … / 60
With PWM control, the actuator switches the valve drive depending on
the control value. The control thereby checks the "Cyclic time of the
switching control value".
Example: for a cyclic time of 10 min. and a control value of 60%, the valve
gear is switched on for 6 min. and off for 4 min.
Basically, the following applies for cyclic time: the more inactive the entire
system, the higher the cyclic time you can set.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used and the cooling control type is set to "PWM".
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
Commissioning
PWM cycle is 0% up to control value
Options:
- 0%
-5%
-…
- 10 %
-…
- 30 %
If the control value is very small for PWM control, the switch-on period
for the actuator might not be sufficient to put in motion the connected
thermoelectric valve gear. A valve drive opens or closes by warming
or cooling an expansion element. However, it always takes time for the
element to heat up or cool off sufficiently to allow the valve to be opened
or closed. As a result, the valve might not even open with very small control
values.
The parameter "PWM cycle is 0% up to control value" can be used to
prevent switching with control values that are too small. This parameter
allows you to configure the control value at which the actuator switches on.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used and the cooling control type is set to "PWM".
PWM cycle is 100% up to control value
Options:
- 70%
- 75 %
-…
- 90 %
-…
- 100 %
If the control value is very large for PWM control, the switch-off period
for the actuator might not be sufficient to put in motion the connected
thermoelectric valve gear. A valve drive opens or closes by warming
or cooling an expansion element. However, it always takes time for the
element to heat up or cool off sufficiently. As a result, the valve might
not even open with very large control values.
The parameter "PWM cycle is 100% up to an output value" can be used to
prevent switching with control values that are too large. This parameter
allows you to configure the control value at which the actuator switches on.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used and the cooling control type is set to "PWM".
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
3.2.8
Commissioning
Parameter window
"Additional heating"
Type of control value
Options:
- Continuous (1 Byte)
- Switching (1 Bit)
The additional stage for heating can transmit a 1-bit or 1-byte sized
control value. If "switching 1-Bit" is selected, the additional stage controls
a switching control (1-bit) via a 1-bit communication object, e.g., a
thermoelectric actuator that controls a switch actuator. If "Continuous 1-Bit"
is selected, the additional stage provides continuous control (1-bit) via
a 1-bit communication object, e.g., an electrical drive or an actuator with
integrated pulse width modulation.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used.
Invert control value
Options:
- Yes
- No
"Invert cooling" is used to adjust the direction of control action of the
control value to "de-energised open" or "de-energised closed" valves.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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ABB i-bus£ KNX
Commissioning
Hysteresis (one-sided)
Options:
- 0.0 K
- 0.1 K
- 0.2 K
- 0.3 K
…
- 1.00 K
…
- 2.00 K
The parameters "Interval of additional level" and "Hysteresis (one-sided)"
enable you to specify when the additional stage switches on and off. For
example, if the setpoint for the additional stage is 18 °C and the hysteresis
is 0.5 K (one-sided), the additional stage will switch on at 18 °C and off at
18.5 °C.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used.
Cycle time for sending of control value (0 - inactive, min)
Options:
- 0 / 1 / 2 / … / 60
The room thermostat can send the control value, even if the value remains
unchanged. This is often required since the connected actuator otherwise
assumes that the room thermostat is no longer available. This enables
the actuator to activate its force-position control, which is only deactivated
when a new control value is received.
The cycle time for automatic sending is adjustable. Cyclic sending can
also be disabled.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used.
Interval of additional level (values changed by (0..127)x0.1 K)
Options:
-0
-…
- 30
…
- 127
Value range 0..127 corresponds to 0K..12.7K
This parameter allows you to specify the setpoint of the additional stage
for heating. The setpoint refers to the base setpoint for heating (comfort
temperature for heating) for the basic stage.
Example: the basic setpoint for heating is set to 21 °C. When the
temperature falls below 18 °C, additional heating should be switched on
so that the room heats up again rapidly. In this event, set the parameter
"Stage gap for the basic stage to additional stage" to 3 K. This may be
necessary after automatic night setback, if the user wishes to use the
room immediately (e.g., the bathroom early in the morning).
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
39
ABB i-bus£ KNX
3.2.9
Commissioning
Parameter window
"Additional cooling stage"
Type of control value
Options:
- Continuous (1 Byte)
- Switching (1 Bit)
The additional stage for cooling can transmit a 1-bit or 1-byte sized
control value. If "Switching 1-Bit" is selected, the additional stage controls
a switching control (1-bit) via a 1-bit communication object, e.g., a
thermoelectric actuator that controls a switch actuator. If "Continuous 1-Bit"
is selected, the additional stage provides continuous control (1-byte) via a 1byte communication object, e.g., an actuator with integrated pulse width
modulation.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used.
Invert control value
Options:
- Yes
- No
The control value is adjusted to "de-energised open" or "de-energised
closed" valves via the direction of control action of the controller.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used.
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Hysteresis (one-sided)
Options:
- 0.0 K
- 0.1 K
- 0.2 K
- 0.3 K
…
- 1.0 K
…
- 2.00 K
The parameters "Interval of additional level" and "Hysteresis (one-sided)"
enable you to specify when the additional stage switches on and off. For
example, if the setpoint for the additional stage is 29 °C and the hysteresis
is 0.5 K (one-sided), the additional stage switches on at 29 °C and off at
28.5 °C.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used.
Cycle time for sending of control value (0 - inactive, min)
Options:
- 0 / 1 / 2 / … / 60
The room thermostat can send the control value, even if the value remains
unchanged. This is often required since the connected actuator otherwise
assumes that the room thermostat is no longer available. This enables
the actuator to activate its force-position control, which is only deactivated
when a new control value is received.
The cycle time for automatic sending is adjustable. Cyclic sending can
also be disabled.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used.
Interval of additional level (values changed by (0..127)x0.1 K)
Options:
-0
-…
- 30
- 127
Value range 0..127 corresponds to 0K..12.7K
This parameter allows you to specify the setpoint of the additional stage
for cooling. The setpoint refers to the base setpoint for cooling (comfort
temperature for cooling) for the basic stage.
Example: the basic setpoint for cooling is set to 26 °C. When the
temperature rises above 29 °C, additional cooling should be switched on
so that the room cools off again rapidly. In this event, set the parameter
"Stage gap for the basic stage to additional stage" to 3 K.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used.
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3.2.10 Parameter window
"Setpoint general"
Setpoint larger when sending change
Options:
- Inactive
- 0.1 K
- 0.2 K
- 0.3 K
- 0.4 K
- 0.5 K
- 0.6 K
- 0.7 K
- 0.8 K
- 0.9 K
- 1.0 K
If this parameter is set to a difference, the associated 2-byte communication
object "Setpoint temperature" sends its current temperature whenever this
parameter changes more than the specified difference.
Cyclic sending of setpoint (0 – inactive, min)
Options:
- 0 / 1 / 2 / … / 60
If the setpoint is to be sent cyclically independent of a change, the
parameter "Cyclic sending of setpoint" must be set to a time. This may
be necessary, for instance, with a higher-level boiler that expects to receive
setpoints and current values within a certain time period. If values are
not received, a predefined supply line temperature is set that is no longer
oriented on actual demand.
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Select base setpoint
Options:
- Dependent setpoints
- Single setpoints
The "Select base setpoint" option defines whether the room thermostat
refers to "Dependent setpoints" or to "Single setpoints".
Dependent setpoints mean that a comfort temperature (base setpoint)
is defined and other setpoints such as temperature at standby or automatic
night setback refer to this point.
The standby temperature 2 K is set lower than the comfort temperature
(base setpoint). At a comfort temperature of 21 °C this means a standby
temperature of 19 °C. If you raise the comfort temperature to 22 °C by
manually moving the setpoint, the standby temperature is automatically
changed to 20 °C.
The setting "Single setpoints" allows you to choose a separate temperature
on the room thermostat for each setpoint; the room thermostat always refers
to this setting in the respective operating mode.
Example: the standby temperature is set permanently at 19 °C. If you
raise the comfort temperature from 21 °C to 22 °C by manually moving
the setpoint, the standby temperature does not change.
Reference base setpoint
Options:
- Setpoint heating
- Setpoint cooling
- Mid skip zone
If "Dependent setpoints" were selected with "Heat and cool" controller
function and selection of base setpoint, this parameter can be used to define
whether the base setpoint refers to comfort temperature for heating, cooling
or the average temperature between "Heat and cool" (see also page 95,
Section 4.4.3 Minimum distance).
"Setpoint heating" is the default setting. In regions where the cooling
function is more important, it is recommended that you change this
parameter to "Setpoint cooling". This makes it easier to set the room
thermostat and raise the cooling setpoint (standby temperature cooling
and automatic night setback).
This parameter is only available if the "Heat and cool" control functions are
set.
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Manual setpoint adjustment at reset of change from night / to night
Options:
- Yes
- No
If this parameter is set to "Yes", the setpoint offset is automatically reset
when switching operating modes from night and to night.
If a setpoint is adjusted manually, the increase or reduction of the setpoint
can be cancelled if the operating mode is changed, e.g. on receipt of
a telegram from a timer. This means that if the parameter is set to "Yes",
the manually adjusted setpoint will be rejected if the operating mode
changes and it will be reset to the setpoint preset in the parameter.
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3.2.11 Parameter window
"Manual setpoint"
Manual setpoint adjustment
Options:
- Disabled
- Actice
This parameter allows end users to adjust the configured setpoint during
commissioning. The settings "... manual increase and reduction of the
setpoint" is used to specify how high or low the setpoint can be moved.
The value that is parameterised for manually configuring the setpoint is
an amount that fluctuates around the setpoint.
Example: with a comfort temperature of 21 °C and a manual setpoint adjustment
of +/- 3 K, users can select any temperature from 18 °C to 24 °C.
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Maximum manual setpoint increase
Options:
-0K
-1K
-2K
-3K
-4K
-5K
-6K
-7K
-8K
-9K
- 10 K
If you wish to prevent an excessive temperature increase by the manual
setpoint setting, the upper range of the manual setpoint preset can be
limited with the parameter "Maximum manual setpoint increase".
Example: with a comfort heating temperature of 21 °C and a manual
setpoint adjustment of +/- 3 K, users can select any temperature from 18 °C
to 24 °C. If the comfort temperature can be increased to a maximum of
22 °C, enter "1 K" under the parameter "Max. increase of setpoint".
Maximum manual setpoint reduction
Options:
-0K
-1K
-2K
-3K
-4K
-5K
-6K
-7K
-8K
-9K
- 10 K
If you wish to prevent an excessive temperature reduction by the manual
setpoint setting, the lower range of the manual setpoint preset can be
limited with the parameter "Maximum manual setpoint reduction".
Example: with a comfort cooling temperature of 26 °C and a manual setpoint
adjustment of +/- 3 K, users can select any temperature from 23 °C to 29
°C. If the comfort temperature can be reduced to a maximum of 25 °C,
enter "1 K" under the parameter "Max. reduction of setpoint".
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Object reset of manual setpoint adjustment active
Options:
- Yes
- No
This parameter releases a 1-bit communication object that upon receipt
of an ON telegram can be used manually reset the setpoint adjustment.
This is required, for instance, if a central function is triggered that is intended
to reset all the room thermostats to their default settings. All manual setpoint
adjustments are rest for both "dependent" setpoints and "individual"
setpoints.
When receiving base setpoint
Options:
- Retain manual setpoint adjustment
- Reset manual setpoint adjustment
If a new base setpoint is received by the ambient temperature controller
via KNX telegram after manually adjusting the setpoint, the ambient
temperature controller can also reset the manually adjusted setpoint.
The behaviour of the ambient temperature controller when receiving
a base setpoint value can be configured via this parameter. The manually
configured setpoint is either reset or remains unchanged. This refers to all
setpoints for "dependent" setpoints and the base setpoint that was received
for "individual" setpoints, e.g. "heating setpoint comfort mode".
Range manual setpoint adjustment
Options:
- 0.1 K
- 0.2 K
- 0.3 K
- 0.4 K
- 0.5 K
- 0.6 K
- 0.7 K
- 0.8 K
- 0.9 K
- 1.0 K
The user can adjust the preset setpoint as required with the two pushswitches, "increase" and "reduce". The parameter "Jump displacement
manual setpoint adjustment" is used to define how many K the presetpoint
is to be increased or reduced when a push-switch is pressed.
Long press of button to enable change of setpoint heating / cooling
Options:
- Yes
- No
If the parameter is set to "Yes", the user can press and hold the
"Temperature up" push-switch (approx. 1 s) to switch to the heating setpoint
and press and hold the "temperature down" push-switch to switch to the
cooling setpoint.
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3.2.12 Parameter window
"Setpoint heat/cool"
Heating setpoint comfort mode
Options:
- 16.0 °C
- 16.5 °C
-…
- 21.0 °C
-…
- 31.0 °C
The "Heating setpoint comfort mode" specifies the individual comfort
temperature for the heating mode. This parameter is only available if
the "Heating" or "Heat and cool" control functions are used, in which the
setpoints "Dependent setpoints" (tab "Setpoints general") have been
selected and the reference of the base setpoint has been set to "Base
setpoint heating".
Heating setpoint reduction standby
Options:
- 0.5 K
- 1.0 K
-…
-2K
-…
- 8.0 K
The setting "Heating setpoint reduction standby" allows you to specify
the number of degrees Kelvin that the comfort temperature is lowered
during standby operation.
This parameter is only available if the parameter "Selection of base setpoint"
(tab "Setpoint general") is set to "Dependent setpoints".
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Heating setpoint reduction night operation
Options:
- 0.5 K
- 1.0 K
-…
-4K
-…
- 8.0 K
The setting "Heating setpoint reduction night operation" allows you to
specify the number of degrees Kelvin that the comfort temperature is
lowered during night mode.
This parameter is only available if the parameter "Selection of base setpoint"
(tab "Setpoint general") is set to "dependent setpoints".
Heating setpoint standby mode
Options:
- 14.0 °C
- 14.5 °C
-…
- 19.0 °C
-…
- 29.0 °C
"Heating setpoint for standby mode" specifies the individual standby
temperature for heating mode. The temperature value specified does
not depend on the specified "Heating setpoint comfort mode".
This parameter is only available if the parameter "Selection of base setpoint"
(tab "Setpoint general") is set to "individual setpoints".
Heating setpoint night mode
Options:
- 10.0 °C
- 10.5 °C
-…
- 15.0 °C
-…
- 25.0 °C
The “Heating setpoint night mode" specifies the individual temperature
during the night for heating mode. The temperature value specified does
not depend on the specified "Heating setpoint comfort mode".
This parameter is only available if the parameter "Selection of base setpoint"
(tab "Setpoint general") is set to "Individual setpoints".
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Cooling setpoint comfort mode
Options:
- 16.0 °C
- 16.5 °C
-…
- 23.0 °C
-…
- 31.0 °C
The "Cooling setpoint comfort mode" specifies the individual comfort
temperature for the cooling mode. This parameter is only available if
the "Cooling" or "Heat and cool" control functions are used, in which the
setpoints "dependent setpoints" (tab "Setpoints general") have been
selected.
Cooling setpoint increase standby
Options:
- 0.5 K
- 1.0 K
-…
-2K
-…
- 8.0 K
The setting "Cooling setpoint increase standby" allows you to specify
the number of degrees Kelvin that the comfort temperature is increased
during standby operation.
This parameter is only available if the parameter "Selection of base setpoint"
(tab "Setpoint general") is set to "Dependent setpoints".
Cooling setpoint increase night mode
Options:
- 0.5 K
- 1.0 K
-…
-4K
-…
- 8.0 K
"Cooling setpoint increase night mode" allows you to specify the number of
degrees Kelvin that the comfort temperature is raised during night operation.
This parameter is only available if the parameter "Selection of base setpoint"
(tab "Setpoint general") is set to "Dependent setpoints".
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Cooling setpoint standby mode
Options:
- 21.0 °C
- 21.5 °C
-…
- 25.0 °C
-…
- 36.0 °C
"Cooling setpoint for standby mode" specifies the individual standby
temperature for cooling mode. The temperature value specified does
not depend on the specified "Cooling setpoint comfort mode".
This parameter is only available if the parameter "Selection of base setpoint"
(tab "Setpoint general") is set to "Individual setpoints".
Cooling setpoint night mode
Options:
- 23.0 °C
- 23.5 °C
-…
- 27.0 °C
-…
- 38.0 °C
"Cooling setpoint night mode" specifies the individual temperature during
the night for cooling mode. The temperature value specified does not
depend on the specified "Cooling setpoint comfort mode".
This parameter is only available if the parameter "Selection of base setpoint"
(tab "Setpoint general") is set to "Individual setpoints".
Minimum distance between heating setpoint and cooling setpoint
Options:
- 0.0 K
- 0.5 K
- ...
-2K
- ...
- 7.5 K
The comfort temperature for cooling can be adjusted with "Minimum
distance between heating and cooling". The cooling setpoint increases
for standby and night mode are based on this value.
If, for instance, with a comfort temperature (base setpoint) of 21 °C you
want to cool at 26 °C in comfort mode, you have to set a dead zone of 5 K
(see also page 95 Section 4.4.3 Minimum distance).
This parameter is only available if the parameter "Selection of base setpoint"
(tab "Setpoint general") is set to "Dependent setpoints".
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Setpoint frost protection
Options:
- 0 °C
- 1 °C
-…
- 7 °C
-…
- 15 °C
The setpoint for frost protection is the temperature that may not be
undershot during the frost protection mode. If the current temperature
undershoots the configured value, the ambient temperature controller
triggers a control value telegram that causes the relevant heating actuator
to heat up the room to prevent damage to the heating system from frostrelated cooling.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used.
Setpoint heat protection
Options:
- 30.0 °C
- 30.5 °C
-…
-…
- 44.0 °C
- Cooling disabled
The setpoint for heat protection is the temperature that may not be overshot
during heat protection mode. If the current temperature overshoots the
configured value, the ambient temperature controller triggers a control value
telegram that causes the relevant cooling unit to cool the room to prevent
damage from heat build-up.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used.
Note:
At the setpoint 99.9 °C is sent at "Cooling disabled".
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3.2.13 Parameter window
"FanCoil general"
Number of fan levels
Options:
- 1 level
- 2 levels
- 3 levels
The parameter "Number of fan levels" allows you to specify the number
of fan stages that should be controlled for a fan coil actuator. You can select
from one, two or three stages. The ambient temperature controller always
provides a 1-byte communication object (see object: "Send manual fan
level" has the following coding) and also provides exactly as many 1-bit
communication objects as the number of fan stages selected. Most
importantly, the number selected must match the actual number of fan
stages. An actuator is therefore actuated either by the 1-byte
communication object or the 1-bit communication object.
Manual operation of the fan stage is signaled to the actuator via
Options:
Object "Automatic ON/OFF..."
Object "Manual ON/OFF..."
This specifies which object sends the information to the actuator or whether
the fan stage is being manually operated by the user. he only difference
between the objects is the coding.
"Automatic ON/OFF" = 1, if manual operation is not enabled
"Manual ON/OFF" = 1, if manual operation is not enabled
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Object manual fan stage send has the following code
Options:
- 1-Byte object as constant value 0-100%
- 1-Byte object as counting value 0-3
- 1-Bit Values
If the user has made a manual fan stage switch, it can be sent to the KNX.
The parameter "Manual fan stage send has the following code" can be used
to enable a 1-byte object or three 1-bit objects.
The selected fan stage can be sent via the 1-byte object as a counter value
from 0 to 3 (0=no manual switch) or the continuous value from 0 to 100 %.
The continuous values for output are specified by the settings in the
threshold values for the specific stage.
When 1-bit values are selected, a 1-bit communication object is available
for every fan stage. If the fan stage is manually switched, an OB telegram
is sent via the corresponding object. An OFF telegram is sent if the manual
switch is cancelled.
Evaluate status byte operation
Options:
- Yes
- No
If this parameter is set to "Yes", the ambient temperature controller can
analyse a stage status message that is received by a fan-coil actuator.
This releases a 1-byte communication object that is used to evaluate
the stage at which the fan coil actuator is activated.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used and the heating control type is set to "FanCoil".
Evaluate status byte operation
Options:
- Yes
- No
If this parameter is set to "Yes", the ambient temperature controller can
analyse an operating status message that is received by a fan-coil actuator.
1-bit communication object is enabled which is used to evaluate whether
the fan coil actuator is currently in operation. If a fault is detected, it is
indicated by the fault symbol in the display.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used and the heating control type is set to "FanCoil".
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Send cycle time of actuator in s (1 ..65,535)
Options: 1 / 2 / … / 120 / … / 65.535
If the "Status byte operation" object is enabled and connected to
the corresponding communication object of the fan coil actuator,
the ambient temperature controller expects a cyclic transmission of
the operating status of the linked fan coil actuator. If a message from
the actuator is not sent within the monitoring time "Send cycle time
of actuator in s" at least once, the ambient temperature controller
automatically shows the fault display. The cycle time of the actuator
should therefore be set to ensure that a telegram is sent at least twice
during "Send cycle time of actuator in s".
Stage of fan after reset
Options:
- Off
- Stage 1
- Stage 2
- Stage 3
- Automatic
The parameter "Stage of fan after reset and after off" is used to prevent
undefined states after a reset or switching off the ambient temperature
controller. It specifies whether the fan switches on the first, second or third
stage, switches off or switches to automatic mode.
Note: automatic mode means that the fan coil actuator switches the fan
stages based on the received 1-byte control value.
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3.2.14 Parameter window
"FanCoil heating"
Stage limit in night mode
Options:
- No limit
- Fan Off
- Stage 1
- Stage 2
If the device is used in an environment such as a hotel room, it may be
desirable to limit the fan stages during the night to reduce the noise.
The parameter "Stage limit in night mode" is used for this. If the parameter
is set to stage 1, the fan will not use more that the first stage when night
mode is enabled. This will apply even if the transmitted control value
requests a higher fan stage.
Automatic return from manual adjustment (0 - inactive, min)
Options:
- 0 / 1 / 2 / … / 60
If "Manual stage switching" was performed by the user, this action can
be reset via onsite operation of the ambient temperature controller.
However, a time can also be input after which the ambient temperature
cancels the "Manual stage switching" and switches back to automatic
stage switching mode.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used and the heating control type is set to "FanCoil".
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Return inactive a fan stage of and automatic return not 0
Options:
- Yes
- No
If the user has manually changed the stage to "switch off", the ambient
temperature controller can also be set so that it does not return to automatic
switching at the end of the "manual switching period" but rather remains
switched off.
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used and the heating control type is set to "FanCoil".
Threshold value stage 1
Options:
- 0%
- 10 %
-…
- 50 %
-…
- 100 %
Threshold value stage 1 specifies the magnitude of the control value
required to switch the ambient temperature controller to fan stage 1.
The threshold can be defined in percentages. Make sure that the threshold
for stage 1 is not set higher than the threshold for stage 2 (if available).
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used, the heating control type is set to "FanCoil" and the
number of fan stages is min. "1 stage"..
Threshold value stage 2
Options:
- 0%
- 10 %
-…
- 40 %
-…
- 100 %
Threshold value stage 2 specifies the magnitude of the control value
required to switch the ambient temperature controller from fan stage 1 to
fan stage 2. The threshold can be defined in percentages. Make sure that
the threshold for stage 1 is not set higher than the threshold for stage 2
(if available)
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used, the heating control type is set to "FanCoil" and the
number of fan stages is min. "2 stage".
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Threshold value stage 3
Options:
- 0%
- 10 %
-…
- 70 %
-…
- 100 %
Threshold value stage 3 specifies the magnitude of the control value
required to switch the ambient temperature controller from fan stage 2 to
fan stage 3. The threshold can be defined in percentages. Make sure that
the threshold for stage 3 is not set higher than the threshold for stage 3
(if available).
This parameter is only available if the "Heating" or "Heat and cool" control
functions are used, the heating control type is set to "FanCoil" and the
number of fan stages is min. "3 stage".
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3.2.15 Parameter window
"FanCoil cooling"
Step limit in night mode
Options:
- No limit
- Fan Off
- Stage 1
- Stage 2
If the device is used in an environment such as a hotel room, it may be
desirable to limit the fan stages during the night to reduce the noise.
The parameter "Step limit in night mode" is used for this. If the parameter is
set to stage 1, the fan will not use more that the first stage when night mode
is enabled. This will apply even if the transmitted control value requests a
higher fan stage.
Automatic return from manual adjustment (0 - inactive, min)
Options:
- 0 / 1 / 2 / … / 60
If "Manual stage switching" was performed by the user, this action can be
reset via onsite operation of the ambient temperature controller. However,
a time can also be input after which the ambient temperature cancels the
"Manual stage switching" and switches back to automatic stage switching
mode.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used and the cooling control type is set to "FanCoil".
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Return inactive a fan stage off and automatic return not 0
Options:
- Yes
- No
If the user has manually changed the stage to "Switch off", the ambient
temperature controller can also be set so that it does not return to automatic
switching at the end of the "Manual switching period" but rather remains
switched off.
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used and the cooling control type is set to "FanCoil".
Threshold value stage 1
Options:
- 0%
- 10 %
-…
- 50 %
-…
- 100 %
Threshold value stage 1 specifies the magnitude of the control value
required to switch the ambient temperature controller to fan stage 1.
The threshold can be defined in percentages. Make sure that the threshold
for stage 1 is not set higher than the threshold for stage 2 (if available).
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used, the heating control type is set to "FanCoil" and the
number of fan stages is min. "1 stage".
Threshold value stage 2
Options:
- 0%
- 10 %
-…
- 40 %
-…
- 100 %
Threshold value stage 2 specifies the magnitude of the control value
required to switch the ambient temperature controller from fan stage 1 to
fan stage 2. The threshold can be defined in percentages. Make sure that
the threshold for stage 2 is not set higher than the threshold for stage 3
(if available).
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used, the cooling control type is set to "FanCoil" and the
number of fan stages is min. "2 stages".
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Threshold value stage 3
Options:
- 0%
- 10 %
-…
- 70 %
-…
- 100 %
Threshold value stage 3 specifies the magnitude of the control value
required to switch the ambient temperature controller from fan stage 2 to
fan stage 3. The threshold can be defined in percentages. Make sure that
the threshold for stage 3 is not set higher than the threshold for stage 3
(if available).
This parameter is only available if the "Cooling" or "Heat and cool" control
functions are used, the heating control type is set to "FanCoil" and the
number of fan stages is min. "3 stages".
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3.2.16 Parameter window
"Compensation"
Summer compensation active
Options:
- Yes
- No
To save energy and to maintain a reasonable temperature differential when
entering an air-conditioned building, you should adjust the room temperature
in relation to external temperature (summer compensation).
Raising the room temperature does not, however, mean that you heat up
the room. Rather the adjustment is intended to allow the room temperature
without cooling to increase to a specified value. This prevents an airconditioner from continuing to try to reduce the ambient temperature to
24 °C at an outside temperature of 35 °C. This function can only be used
together with an external temperature sensor. If no external temperature
sensor is in use, set the parameter to "No".
CO is shown in the display when compensation is enabled.
Summer compensation lower exterior temp. value
Options:
- 9 °C
- 10 °C
-…
- 20°C
-…
- 31: 40°C
This specifies the lower outside temperature from which compensation
should be enabled because of a high outside temperature.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
62
ABB i-bus£ KNX
Commissioning
Summer compensation upper exterior temp. value
Options:
- 9 °C
- 10 °C
-…
- 32°C
-…
- 31: 40°C
This specifies the upper outside temperature from which compensation
should be enabled because of a high outside temperature.
Summer compensation lower setpoint offset
Options:
-0K
-1K
-2K
-…
- 10 K
The "lower setpoint offset" specifies how many K the setpoint should be
increased during summer compensation if the "lower exterior temperature"
is reached.
Typical values for summer compensation are
- 20 °C: lower outside temperature
- 32 °C: upper outside temperature
- 0 K:
lower setpoint offset
- 4 K:
upper setpoint offset
This means that a floating setpoint increase from 0 to 4 K will be
implemented if the outside temperature increases from 20 °C to 32 °C.
Summer compensation upper setpoint offset
Options:
-0K
-1K
-2K
-…
-4K
-…
- 10 K
The "upper setpoint offset" specifies how many K the setpoint should be
increased during summer compensation if the "upper exterior temperature"
is reached.
Typical values for summer compensation are
- 20 °C: lower outside temperature
- 32 °C: upper outside temperature
- 0 K:
lower setpoint offset
- 4 K:
upper setpoint offset
This means that a floating setpoint increase from 0 to 4 K will be
implemented if the outside temperature increases from 20 °C to 32 °C.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
63
ABB i-bus£ KNX
Commissioning
Winter compensation active
Options:
- Yes
- No
To improve comfort and to maintain a reasonable temperature differential
when entering a room with a large window area, you should increase
the room temperature depending on the outside temperature in winter
(winter compensation).
This function can only be used together with an external temperature
sensor. If no external temperature sensor is in use, set the parameter
to "No".
CO is shown in the display when compensation is enabled.
Winter compensation lower exterior temp. value
Options:
- -10 °C
- -9 °C
-…
- 0 °C
-…
- 21 °C
This specifies the lower outside temperature up to which the setpoint should
be corrected (winter compensation) because of an excessively low outside
temperature.
Winter compensation upper exterior temp. value
Options:
- -10 °C
- -9 °C
-…
- 10 °C
-…
- 21 °C
This specifies the upper outside temperature from which the setpoint should
be corrected (winter compensation) because of an excessively low outside
temperature.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
64
ABB i-bus£ KNX
Commissioning
Winter compensation lower setpoint offset
Options:
-0K
-1K
-2K
-…
-4K
-…
- 10 K
The "lower setpoint offset" specifies how many K the setpoint should be
increased during winter compensation if the "lower exterior temperature"
is reached.
Typical values for winter compensation are
- 0 °C: lower outside temperature
- 10 °C: upper outside temperature
- 4 K:
lower setpoint offset
- 0 K:
upper setpoint offset
This means that a floating setpoint increase from 0 to 4 K will be
implemented if the outside temperature falls from 10 °C to 0 °C.
Winter compensation upper setpoint offset
Options:
-0K
-1K
-2K
-…
- 10 K
The "upper setpoint offset" specifies how many K the setpoint should be
increased during winter compensation if the "upper exterior temperature"
is reached.
Typical values for winter compensation are
- 0 °C: lower outside temperature
- 10 °C: upper outside temperature
- 4 K:
lower setpoint offset
- 0 K:
upper setpoint offset
This means that a floating setpoint increase from 0 to 4 K will be
implemented if the outside temperature falls from 10 °C to 0 °C.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
65
ABB i-bus£ KNX
3.3
3.3.1
Commissioning
Communication objects
General
No.
0
Function
Object name
Data type
Flags
In Operation
General
1 Bit EIS1
DPT 1.001
K, Ü
Sends the object value "0" or "1" to the bus cyclically. Object value and cycle time can be set
in the parameters.
The telegram can be used for life-beat monitoring of the device, e.g. by a monitoring block.
1
Unit On/Off
General
1 Bit EIS1
DPT 1.001
K, S, Ü,
L
The controller is activated via this 1-bit communication object when an ON telegram
is received and deactivated when an OFF telegram is received. It can receive and send,
Switching the controller on and off is the same as actuating the ON/OFF switch on the device.
When the device is switched off OFF is shown on the display, but the controller setpoint is
switched to a parameterisable temperature setpoint and the fan switches off immediately.
0: switch off device or device is switched off
1: switch on device or device is switched on
2
Switch °C/°F display unit
General
1 bit EIS1
DPT 1.001
K, S, L
This 1-bit communication object can be used to switch the units display between °C and °F.
If the object receives an ON telegram the display switches to °F. If an OFF telegram is
received the display changes to °C.
This data item forms the 1-bit KNX object and can be sent and received.
The communication object is always visible.
0: display in °C
1: display in °F
3
Ilumination On/Off
General
1 Bit EIS1
DPT 1.001
K, S, Ü,
L
The object enables switching the display lighting on and off via the bus.
0: lighting Off
1: lighting On
Note:
Automatic mode is enabled after receipt of an OFF telegram.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
66
ABB i-bus£ KNX
3.3.2
Commissioning
Control system
No.
4
Function
Object name
Data type
Flags
Frost/heat protection
Control
1 Bit EIS1
DPT 1.001
K, S, L
This data item forms the 1-bit object of KNX for switching operating modes (frost and heat
protection). It can be received only.
For example, binary inputs that record information from window contacts to notify the ambient
temperature controller that a window is open or closed can send their current status to the
frost and heat protection object. When receiving an ON telegram, the room thermostat
activates frost protection mode; when an OFF telegram is received, frost protection mode is
deactivated and the current mode is changed.
The "window" symbol is shown in the display when frost/heat protection is enabled.
0: Frost/Heat Protection Off
1: Frost/Heat Protection On
5
Activate night mode
Control
1 Bit EIS1
DPT 1.001
K, S, L
This 1-bit communication object can be used to switch the room thermostat to night mode
when an ON telegram is received. An OFF telegram deactivates night mode. This
communication object can be used, e.g., by time switches to send information.
This data item forms the 1-bit object of KNX for switching operating modes (night mode).
It can be received only, because a manual switch to night mode on site is not possible.
In night mode the parameterisable setpoint "night mode" is enabled and the fan stage is
limited to a parameterisable value.
0: night mode Off
1: night mode On
6
User absent
Control
1 Bit EIS1
DPT 1.001
K, Ü, S,
L
This 1-bit communication object switches the room thermostat between comfort and standby
modes. When an ON telegram is received, comfort mode is activated; when an OFF telegram
is received, standby mode is activated.
This data item forms the 1-bit object of KNX for switching operating modes (comfort /
standby). It can be received and sent.
0: control system is in Standby mode
1: control system is in Comfort mode
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
67
ABB i-bus£ KNX
Commissioning
No.
7
Function
Object name
Data type
Flags
Operating mode
switchover
Control
1 byte
K, Ü, S,
L
DPT_HVAC
Mode
This data item forms the 1-bit object of KNX (DPT_HVAC_MODE) for switching operating
modes. All operating modes of the above 1-bit objects can be set with the 1-byte object.
The data item can be received and sent. The selection of whether switching is via three 1-bit
objects or two 1-byte objects (OMN / OMO) is defined by application parameters (see above).
This 1-byte communication object can be used to switch between comfort, standby, night
and frost/heat protection modes. The object evaluates received telegrams as "normal".
This means, for example, if a comfort telegram is received, the room thermostat switches
to comfort mode. If a night telegram is received, the room thermostat switches to night mode.
This object is controlled, for example, by time switches.
The following provisions apply for the object:
0: Auto
1: Comfort
2: Standby
3: Night
4: Frost/Heat Protection
5 – 255: not permitted
8
Operating mode
switchover required
Control
1 byte
K, Ü, L
DPT_HVAC
Mode
This data item corresponds to the operating mode switching 1 byte function, where
it overrides the OMN (Operation Mode Normal vs. Operation Mode Overwrite).
This 1-byte communication object can temporarily "overwrite" the previous 1-byte mode
object. This means, for example, if a frost/heat protection telegram is received, the ambient
temperature controller switches to frost or heat protection mode. If the frost or heat protection
is reset by the receipt of another telegram, the ambient temperature controller enables
the operating mode on the "normal" 1-byte operating mode object. As a result, it is capable
of noting operating modes. This object is controlled, for example, by binary inputs that record
information from window contacts.
The following provisions apply for the object:
0 = Auto
1 = Comfort
2 = Standby
3 = Night
4 = Freezing/Heat Protection
5 – 255 = not permitted
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
68
ABB i-bus£ KNX
Commissioning
No.
9
Function
Object name
Data type
Flags
Send setpoint
Temperature sensor
2 byte
K, Ü, L
This data item forms the 2-byte object of KNX for the current temperature. The temperature is
measured in the "temperature sensor" application and can be weighted with an external input
temperature (object input for external current temperature). It can be sent only.
Must be cyclic and be able to send on change.
10
Input current exterior
temperature
Temperature recording
2 byte
K, S
A temperature value from an additional sensor can be received via this 2-byte communication
object. By parameterising the controller properly, the received value can also be included
in the controller and weighted, if necessary.
This data item forms the 2-byte object of KNX for the current external temperature. It can
be received only.
11
Input exterior temperature
Temperature recording
2 byte
K, S
This data item forms the 2-byte object of KNX for outside temperature recording. It can
be received only. This object is relevant for summer and winter compensation (summer
compensation in accordance with DIN 1946). The temperature from which the summer
or winter compensation is applied can be adjusted by application parameters (see above).
Behaviour with setpoint adjustment by user:
The adjust setpoint is displayed to the user. The permitted adjustment range is moved
accordingly.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
69
ABB i-bus£ KNX
3.3.3
Commissioning
Setpoints
(Dependent setpoints)
(Individual setpoints)
No.
12
Function
Object name
Data type
Flags
Current setpoint cooling
Control
2 byte
K, Ü, S,
L
This data item forms the 2-byte KNX object and can be sent and received. It is relevant
for setpoint management and for calibration of setpoint offsets between devices.
This object is used for displaying the current setpoint, e.g. for display and diagnostics.
13
Current setpoint heating
Control
2 byte
K, Ü, S,
L
This data item forms the 2-byte KNX object and can be sent and received. It is relevant
for setpoint management and for calibration of setpoint offsets between devices.
This object is used for displaying the current setpoint, e.g. for display and diagnostics.
14
Base setpoint
Control
2 byte
K, S, Ü,
L
Object is visible if the dependent setpoint preset has been set in the parameters.
This data item forms the 2-byte base setpoint KNX object and can be received. It is relevant
for the concept of the dependent setpoint adjustment and is not used with absolute setpoints.
It can also be used to reset the manual on-site adjustment if this function is parameterised.
The setpoint is qualified via application parameters if "heating and cooling" is selected.
The base setpoint can then be defined as BSW heating, BSW cooling or centre of dead zone.
If only heating or only cooling is enabled, the BSP corresponds to the selected operating
mode.
15
Heating setpoint comfort
Control
2 byte
K, S, Ü,
L
Object is visible if the individual setpoint preset has been set in the parameters.
This data item forms the 2-byte KNX object and can be received. It is relevant for absolute
setpoint management. When a setpoint for an operating mode is received, the corresponding
setpoint is automatically enabled.
16
Heating setpoint standby
Control
2 byte
K, S, Ü,
L
Object is visible if the individual setpoint preset has been set in the parameters.
This data item forms the 2-byte KNX object and can be received. It is relevant for absolute
setpoint management. When a setpoint for an operating mode is received, the corresponding
setpoint is automatically enabled.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
70
ABB i-bus£ KNX
Commissioning
17
Heating setpoint night
mode
Control
2 byte
K, S, Ü,
L
Object is visible if the individual setpoint preset has been set in the parameters.
This data item forms the 2-byte KNX object and can be received. It is relevant for absolute
setpoint management. When a setpoint for an operating mode is received, the corresponding
setpoint is automatically enabled.
18
Setpoint frost protection
Control
2 byte
K, S, Ü,
L
Object is always visible if the individual setpoint preset has been set in the parameters.
This data item forms the 2-byte KNX object and can be received. It is relevant for absolute
and relative setpoint management. When a setpoint for an operating mode is received,
the corresponding setpoint is automatically enabled.
19
Cooling setpoint comfort
Control
2 byte
K, S, Ü,
L
Object is visible if the individual setpoint preset has been set in the parameters.
This data item forms the 2-byte KNX object and can be received. It is relevant for absolute
setpoint management. When a setpoint for an operating mode is received, the corresponding
setpoint is automatically enabled.
20
Cooling setpoint standby
Control
2 byte
K, S, Ü,
L
Object is visible if the individual setpoint preset has been set in the parameters.
This data item forms the 2-byte KNX object and can be received. It is relevant for absolute
setpoint management. When a setpoint for an operating mode is received, the corresponding
setpoint is automatically enabled.
21
Cooling setpoint night
mode
Control
2 byte
K, S, Ü,
L
Object is visible if the individual setpoint preset has been set in the parameters.
This data item forms the 2-byte KNX object and can be received. It is relevant for absolute
setpoint management. When a setpoint for an operating mode is received, the corresponding
setpoint is automatically enabled.
22
Setpoint heat protection
Control
2 byte
K, S, Ü,
L
Object is always visible if the individual setpoint preset has been set in the parameters.
This data item forms the 2-byte KNX object and can be received. It is relevant for absolute
and relative setpoint management. When a setpoint for an operating mode is received,
the corresponding setpoint is automatically enabled.
Value 99.9 means heat protection = off.
23
Reset of local operation
Control
1 Bit EIS1
DPT 1.001
K, S, Ü,
L
This 1-bit communication object is enabled, if the proper parameter has been set to "yes".
This object resets the comfort setpoint to the parameterised value.
This data item forms the 1-byte KNX object and can be received only. Manual operation
is reset when a "1" is received.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
71
ABB i-bus£ KNX
3.3.4
Commissioning
Control value
No.
24
Function
Object name
Data type
Flags
Control value heating
Control value
1 byte /
1 bit
K, Ü, L
2 channel (4-pipe system)
This data item forms the 1-byte or 1-bit KNX object and can be sent only. This object is
the control value for heating. In fan coil systems with only one output channel it is the
"heating/cooling" object in which the internal allocation is controlled by the external operating
mode switching (see index 6).
When acting as a branch the control value is received via this object.
25
Control value cooling
Control value
1 byte /
1 bit
K, Ü, L
This data item forms the 1-byte or 1-bit KNX object and can be sent only. This object is
the control value for cooling.
This object is used with 2 channels (4-pipe system) only.
When acting as a branch the control value is received via this object.
26
Contr. value add. heat.
stage
Control value
1 byte /
1 bit
K, Ü, L
This data item forms the 1-byte or 1-bit KNX object and can be sent only. This object is
the control value for the heating additional stage (switching or quasi continuous).
27
Contr. value add. cool.
stage
Control value
1 byte /
1 bit
K, Ü, L
This data item forms the 1-byte or 1-bit KNX object and can be sent only. This object is
the control value for the cooling additional stage (switching or quasi continuous).
28
Status heat requirement
Control value
1 bit
K, S, Ü,
L
This data item acts as an output and provides information on whether the cooling output is
currently enabled (including in the switched-off phases of a PWM cycle). This information
can be useful for visualisation.
29
Status cooling
requirement
Control value
1 bit
K, S, Ü,
L
This data item acts as an output and provides information on whether the cooling output is
currently enabled (including in the switched-off phases of a PWM cycle). This information
can be useful for visualisation.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
72
ABB i-bus£ KNX
3.3.5
Commissioning
Heating / cooling
No.
24
Function
Object name
Data type
Flags
Control value heating
Control value
1 byte /
1 bit
K, Ü, L
1 channel (2-pipe system)
This data item forms the 1-byte or 1-bit KNX object and can be sent only. This object is
the control value for heating and cooling. In fan coil systems with only one output channel
it is the "heating/cooling" object in which the internal allocation is controlled by the external
operating mode switching (see index 6).
When acting as a branch the control value is received via this object.
30
Heat/Cool switchover
Heat/Cool
1 Bit EIS1
DPT 1.001
K, S, Ü,
L
This data item forms the 1-bit KNX object. It can be received and sent. If the RTR switches
the operating mode, the object is sent if the corresponding parameter has been set to
"automatic and send". In the event of external switching the operating mode is switched by
a different bus device (such as a fan coil 2-line system). After the switching a separate output
object or the same output object can be used (depending on the number of output channels
with "heating and cooling").
0: cooling
1: heating
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
73
ABB i-bus£ KNX
3.3.6
Commissioning
Fan automatic / manual
No.
31
Function
Object name
Data type
Flags
Automatic on/off
Fan automatic /
manual
1 Bit EIS1
DPT 1.001
K, S, Ü,
L
If a fan coil actuator is tripped by the ambient temperature controller, the individual fan stages
are typically switched automatically by the room thermostat. However, users can select
a stage manually. When the stage is specified manually, the 1-bit communication object
triggers an ON telegram and when manual mode is deactivated, an OFF telegram is sent.
This enables you to notify a second control unit that a stage has been set manually.
The 1-bit object can also receive and analyse telegrams sent from other control points.
This data item forms the 1-bit KNX object and can be sent and received. When switching
to manual operation and sending a fan stage via the display, manual mode is enabled.
Automatic mode is re-enabled with this data item after automatic return after a
parameterisable time. For example, if an automatic return is not to be parameterised,
the RTR can be reset externally to the controlling operation via this object.
Note: the coding of this object is matched to ABB actuators. A link to other manufacturers
may make it necessary to use the alternative object "manual switching on/off".
0: the user must set the fan stage (0-3) manually.
1: the fan stage is set to "auto"
31
Manual on/off
Fan automatic /
manual
1 bit
K, S, Ü,
L
See description of "Automatic switching on/off"
The object is visible if it is enabled in the parameters.
0: the fan stage is set to "auto"
1: the user must set the fan stage (0-3) manually.
No.
32
Function
Object name
Data type
Flags
Fan stage manual 1 byte
Fan manual
1 byte
K, S, Ü,
L
The object is visible alternatively to 1-bit objects 34-36.
The device sets the fan stage actuator to manual mode with this object.
The object has two possible codings, which can be set alternately in the parameters.
Coding 1: 1 byte continuous value (0...100%)
Coding 2: 1 byte counter value, value range 0...3
33
Status operating state of
FanCoil
Status FanCoil
operation
1 byte
K, S
This 1-byte communication object can be used by the room thermostat to receive information
about the status of the fan coil actuator. It can evaluate whether stage 1, 2, 3, etc. or no stage
was activated.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
74
ABB i-bus£ KNX
Commissioning
No.
34
Function
Object name
Data type
Flags
Switch fan coil stage 1
Fan manual
1 Bit EIS1
DPT 1.001
K, S, Ü,
L
This 1-bit communication object can be used to send an ON telegram, if the first fan stage is
to be switched on. An OFF telegram is sent, if the first fan stage is no longer to be switched
on.
This data item forms the 1-bit KNX object and can be sent and received.
35
Switch fan coil stage 2
Fan manual
1 Bit EIS1
DPT 1.001
K, S, Ü,
L
This 1-bit communication object can be used to send an ON telegram, if the second fan stage
is to be switched on. An OFF telegram is sent, if the third fan stage is no longer to be
switched on.
This data item forms the 1-bit KNX object and can be sent and received.
36
Switch fan coil stage 3
Fan manual
1 Bit EIS1
DPT 1.001
K, S, Ü,
L
This 1-bit communication object can be used to send an ON telegram, if the third fan stage is
to be switched on. An OFF telegram is sent, if the third fan stage is no longer to be switched
on.
This data item forms the 1-bit KNX object and can be sent and received.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
75
ABB i-bus£ KNX
3.3.7
Commissioning
Monitoring
No.
37
Function
Object name
Data type
Flags
Receive in operation
Actuator monitoring
1 bit
K, S
The object is visible if the corresponding parameter is set to "yes".
This object monitors the cyclic sending of the actuator "In use" communication object.
If monitoring is triggered, the "fault" symbol (plus text display) is shown on the display
(it disappears automatically).
39
Signal dew point
Dew-point monitoring
1 Bit EIS1
DPT 1.001
K, S
This 1-bit communication object should be used to send telegrams from a dew point sensor
that, for example, is connected to a binary input. If the object receives an ON telegram, heat
protection is enabled; if the object receives an OFF telegram, heat protection is disabled.
This data item forms the 1-byte KNX object and can be received only. The action depends
on the parameterisation.
40
Signal condensate tank
Monitoring of
condensate tank
1 Bit EIS1
DPT 1.001
K, S
This 1-bit communication object should be used to send telegrams from a dew point sensor
that, for example, is connected to a binary input. If the object receives an ON telegram, heat
protection is enabled; if the object receives an OFF telegram, heat protection is disabled.
This data item forms the 1-byte KNX object and can be received only. The action depends
on the parameterisation.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
76
ABB i-bus£ KNX
3.3.8
Commissioning
Alarm temperature
No.
41
Function
Object name
Data type
Flags
Report failure of current
temp
Alarm temperature
1 Bit EIS1
DPT 1.001
K, Ü, L
This data item forms the 1-bit KNX object and can be sent only. It is sent if there is no more
CURRENT temperature measurement and the correct control system is in danger as a result.
42
Report failure of ext. temp.
Alarm temperature
1 Bit EIS1
DPT 1.001
K, Ü, L
The refers to object 11 "External temperature input - temperature recording".
This data item forms the 1-bit KNX object and can be sent only. It is sent if there is no more
CURRENT temperature measurement and the correct control system is in danger as a result.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
77
ABB i-bus£ KNX
3.3.9
Commissioning
Status byte
No.
43
Function
Object name
Status byte RHCC status
Status byte
Data type
Flags
2 byte
K, Ü, L
DPT 22.101
KNX status byte DPT 22.101
Bit 0 failure message of CURRENT temperature recording
Coding: 0 no fault in CURRENT temperature recording
Coding: 1 fault in CURRENT temperature recording
Bit 8 heating/cooling mode display
Coding: 0 cooling mode
Coding: 1 heating mode
44
Status byte HVAC status
Status byte
2 byte
K, Ü, L
DPT_HVAC
Status
The communication object transfers the current state of the ambient temperature controller
to the bus. The individual bits have the following meanings:
Bit 0: comfort operation
Bit 1: standby mode
Bit 2: night mode
Bit 3: frost/detection enabled
Bit 4: dewpoint
Bit 5: heating/cooling mode display
Coding: 0 cooling mode
Coding: 1 heating mode
Bit 6: controller state
Bit 7: frost alarm
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
78
ABB i-bus£ KNX
Commissioning
3.3.10 Compensation
No.
45
Function
Object name
Data type
Flags
Summer compensation
active
Control
1 bit
K, S, Ü,
L
Summer compensation enabled is reported via this 1-bit communication object. This is always
the case if the outside temperature exceeds the values specified in the summer
compensation parameters.
This data item forms the 1-bit KNX object and can be sent and received.
0: summer compensation disabled
1: summer compensation enabled
45
Winter compensation
active
Control
1 bit
K, S, Ü,
L
Winter compensation enabled is reported via this 1-bit communication object. This is always
the case if the outside temperature falls below the values specified in the winter
compensation parameters.
This data item forms the 1-bit KNX object and can be sent and received.
0: winter compensation disabled
1: winter compensation enabled
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
79
ABB i-bus£ KNX
Commissioning
3.3.11 Fan stage - state
No.
47
Function
Object name
Data type
Flags
State stage 1
Fan coil operation
state
1 Bit EIS1
DPT 1.001
K, S
This 1-bit communication object can be used by the ambient temperature controller to receive
information about the status of the fan coil actuator. It can evaluate whether stage 1 or no
stage was activated.
48
State stage 2
Fan coil operation
state
1 Bit EIS1
DPT 1.001
K, S
This 1-bit communication object can be used by the ambient temperature controller to receive
information about the status of the fan coil actuator. It can evaluate whether stage 2 or no
stage was activated.
49
State stage 3
Fan coil operation
state
1 Bit EIS1
DPT 1.001
K, S
This 1-bit communication object can be used by the ambient temperature controller to receive
information about the status of the fan coil actuator. It can evaluate whether stage 3 or no
stage was activated.
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ABB i-bus£ KNX
3.4
Commissioning
Special operating states
Behaviour after reset
The behaviour after reset can be set for the operating mode, the operating
type and the fan stage.
Heating, cooling and the state of the object "switching heating/cooling" can
be selected for the operating mode. When it is set to "depending on object
"switching heating/cooling"", the object state is queried via the bus when
switching on or after a reset.
Comfort mode is default after reset, however Standby, Night mode or
Frost/Heat Protection can also be selected.
The active fan stage after reset can be stage 1, 2 or 3. If no stage is to be
active after reset, select the setting "Off". The setting "Automatic" switches
on the fan stage in accordance with the current control value.
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4
Planning and use
This section contains tips and application examples for practical application
of the device.
4.1
Operating modes
The ambient temperature controller has he following four operating modes:
–
Frost protection mode (with heating): ambient temperature control is
disabled; heating is only on if the ambient temperature has fallen so
far the heating system may be in danger of freezing.
Heat protection mode (with cooling): ambient temperature control is
disabled; cooling is on only if the ambient temperature has risen so
far that it is virtually impossible to use the room.
–
Comfort mode (heating and cooling): the setpoint for the ambient
temperature is set to a value that enables "normal usage" of the area
at a pleasant temperature.
–
Standby mode (heating): the ambient temperature is reduced
(e.g. during temporary absence) to save heating costs but the comfort
temperature can be restored quickly when necessary.
Standby mode (cooling): the ambient temperature is increased
(e.g. during temporary absence) to save energy costs but the comfort
temperature can be restored quickly when necessary.
–
Night mode (heating and cooling): during the night areas are not used
for extended periods; the ambient temperature is reduced to a value
appropriate for the night and the comfort setpoint can be restored
relatively quickly in the morning.
For switching between the operating modes switching telegrams
(parameter "operating mode switching": "1 bit (3x)") or 1-byte value
telegrams (parameter "operating mode switching": "1 byte (2x)") are used
(see also drawings of operating modes on page 83, Section Operating
mode switching).
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4.1.1
Operating mode
switching 1 bit
The frost/heat protection has the top priority, i.e. in this case switching
to a different operating mode is disabled. Frost/heat protection must be
disabled first, e.g. by closing an open window. Night mode has the next
higher priority, followed by comfort mode. If none of the above three
operating modes are enabled, the ambient temperature controller is in
standby mode.
4.1.2
Operating mode
switching 1 byte
1-Byte
Betriebsartenumschaltung
1-Byte
Betriebsartenumschaltung OMO
KomfortBetrieb
StandbyBetrieb
Auto
NachtBetrieb
KomfortBetrieb
Frost-/HitzeschutzBetrieb
StandbyBetrieb
Betriebsart
NachtBetrieb
Frost-/HitzeschutzBetrieb
When switching operating mode via 1 byte two 1-byte communication
objects are available.
The two 1-byte communication objects have different behaviour when
receiving a telegram. An object evaluates received telegrams as "normal"
(operating mode switching). This means, for example, if a comfort telegram
is received, the room thermostat switches to comfort mode. If a night
telegram is received, the ambient temperature controller switches to night
mode. This object is controlled, for example, by time switches.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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The second object )"operating mode switching OMO") may "overwrite"
the first temporarily. This means, for example, if a frost/heat protection
telegram is received, the ambient temperature controller switches to frost
or heat protection mode. If the frost or heat protection is reset by the receipt
of another telegram, the ambient temperature controller enables the
operating mode on the "normal" object. As a result, it is capable of noting
operating modes. This object is controlled, for example, by binary inputs
that record information from window contacts.
The following apply to both 1-byte communication objects:
0
= auto ("operating mode switching OMO" only)
1
= comfort
2
= standby
3
= night
4
= frost/heat protection
5 – 255 = not permitted
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4.2
Temperature
measurement
The ambient temperature controller with display can record the temperature
with an internal sensor. Values can also be received from an external sensor
or an outside temperature sensor via communication objects. Receipt of
the values can be monitored and possibly calibrated. The functions are
explained in more detail below.
4.2.1
Internal temperature
recording
The device has an internal temperature sensor. The measured value is sent
to the controller as a current value. The value is also shown on the display
at the same time ("display in normal operation": "current actual value").
The measured temperature can also be sent over the bus with the 2-byte
communication object "send current value - temperature sensor" to, for
example, display as a visualisation. The transmission is done depending on
the parameter "send current value on change up" and "send current value
cyclically". Both parameters are disabled by default. This means that if the
current temperature is to be sent, at least one setting must be enabled.
The setting "send current value on change up" has the advantage that even
the smallest changes of the measured temperature, adjustable from 0.1 K
to 1.0 K, are sent over the bus. The disadvantage is that, for example,
the setting 0.1 K and a large number of ambient temperature controllers
in one installation increases the bus load.
The parameter "send current value cyclically" has the advantage that
the current value is sent continuously, even if the measured value does
not change. The disadvantage is that fast changes may not be registered,
because the cycle time has been set too large. However, it should also
not be set too small to prevent excessive bus loading.
4.2.2
External temperature
recording
In areas such as open plan offices it can be difficult to control
the temperature with only a single ambient temperature controller.
We recommend subdividing such areas into zones with additional
temperature sensors.
The parameter "ambient temperature measurement" must be set to "internal"
and "external" to enable the temperature value of the additional temperature
sensor to be integrated. Then the internally and externally measured
temperatures can also be weighted. The weighting settings depend on
the local conditions. If the ambient temperature controller and the additional
temperature sensor are equally distant from the radiators (flat radiators),
the setting "50%/50%" should give good control results.
4.2.3
Monitoring
The "Monitoring temperature measurement" parameter defines whether
the internal and external temperature sensors are to be monitored. This
means that the ambient temperature controller must receive at least one
telegram with the current temperature on the associated communication
object within a configurable time ("monitoring time for external temperature"
and "monitoring time for outside temperature").
If a telegram is not received within the monitoring time, the ambient
temperature controller will assume that the sensor for the outside
temperature or external temperature is faulty or no longer connected to
the bus.
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The room temperature controller will stop controlling and will send a
predefined control value ("control value for temperature measurement error")
to prevent the room from overcooling or overheating. The control value is
transmitted until the ambient temperature controller receives a temperature
telegram over the bus again and the control is enabled again.
4.2.4
Adjustment
If the measured temperature is falsified, for example by the internal heat
of the bus coupler, an "ambient temperature adjustment value" can be set.
If an additional external temperature sensor has been enabled and the
measured value is falsified by cold or heat influences, an adjustment value
can also be set.
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4.3
Controller
The ambient temperature controller can be used for heating only, cooling
only or for heating and cooling.
If the ambient temperature controller is to be used for heating and cooling,
it can switch automatically from heating to cooling and cooling to heating.
The controller automatically detects whether it must send a control value
for heating or cooling. If automatic switching is not wanted, switching
between heating and cooling can be done by an external, central controller
using the 1-bit object "switchover heating/cooling. In this setup, the heat and
cooling icons are continuously displayed in the respective mode. The object
is enabled by the parameter "switching between heating and cooling".
The control value that is sent for heating and/or cooling can be sent on
a common communication object "control value heating/cooling" or two
separate communication objects "control value heating" or "control value
cooling". If a common object is used, it may be necessary to inform
the actuator whether the control value refers to heating or cooling.
The parameter "switchover between heating and cooling" can be enabled
with the setting "automatic and send" a 1-bit communication object
"switchover heating/cooling". If heating operating mode is enabled, a "1"
is sent to the bus and if cooling operating mode is enabled, a "0" is sent.
A common communication object for heating and cooling is required to
actuate 2-pipe systems, i.e. heating and cooling modes use the same pipes.
Two single communication objects are used in 4-pipe systems, which have
separate pipes for heating and cooling.
The parameter "number of output channels" defines whether an object
("1 channel (2-pipe system) for heating and cooling") or two objects
("2 channels (4-pipe system) for heating and cooling") are to be shown.
Separate control types can be parameterised for heating and cooling.
One of the following control types can be selected:
-
2-point
-
PWM
-
continuous
-
Fan Coil
The individual control types are described below in more detail.
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4.3.1
2-point controller
T
22 °C
Hysterese
21 °C
Sollwert
20 °C
Istwert
t
Stellgröße
1
0
t
Note: after switching the control value on or off the room continues to heat or
cool because the heating elements are still hot or cool.
A 2-point controller has two output states, which switch depending on
the current value. If the current value is above the parameterised setpoint
(22 °C at 21 °C setpoint), the control value "0" is sent to the bus.
If the current value is below the parameterised setpoint (20 °C at 21 °C),
the control value "1" is sent.
A 2-point controller is recommended if the control value is only required to
switch between the two states ON and OFF, such as an electrothermal valve
connected to a switching actuator. A 2-point controller can deal with control
deviations with large changes of the command variables, but never comes
to rest.
2-point controllers always have an integrated hysteresis, which varies
around the setpoint, to prevent fast oscillations of the output states.
The hysteresis can be parameterised in different magnitudes. For example,
if the setpoint in heating mode is 21 °C and the hysteresis is 1.0 K,
the controller switches on if the temperature falls below 20.5 °C and off
if it exceeds 21.5 °C. The "hysteresis" parameter depends on how fast the
heating can heat up the room and how fast the cooling can cool the room
and also on the sensitivity to temperature of the people in the room.
The hysteresis should not be set too small, because a switching actuator
will be continuously opening and closing. The hysteresis must also not be
too great, because the temperature variations in the room will be too large.
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4.3.2
Continuous controller
T
21 °C
Sollwert
Istwert
t
Stellgröße
100%
0%
t
A continuous controller has a continuously changing control value, which
can take values between 0 and 100%. With the KNX the control value signal
is converted to a 1-byte value, i.e. the control value of 0% corresponds to
the value "0" and the control value 100% corresponds to the value "255".
Devices such as electromotor actuators can be controlled by a continuous
controller with a 1-byte control value. They convert the received value
directly to the valve position with an integrated motor. This enables optimum
control.
The 1-byte control value of a continuous controller can also be sent to KNX
heating actuators, which convert the 1-byte signal to a PWM value. This
can be used to control electrothermal valves. It may be useful to restrict
the dynamic range, because electrothermal valves required a certain time
to open and close (see also page 90, Section 4.3.3 PWM controller). This
is done with the parameters "minimum control value" and "maximum control
value". For example, if a maximum control value of 80% is preset, the
controller always automatically sends the value 255 if a control value of 204
is exceeded.
To prevent unnecessary bus loading the magnitude of the control value can
be set to enable it to be sent on the bus. The setting is a percentage value.
The transmission of the control value is determined by a cycle time if it has
not changed. The cycle time should be set too small (e.g. every 10 min).
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4.3.3
PWM controller
T
21 °C
Sollwert
Istwert
t
Stellgröße
^
=30%
^
=30%
^
=40%
^
=50%
^
=70%
1
0
10 min
t
Note: after switching the control value on or off the room continues to heat or
cool because the heating elements are still hot or cool.
The PWM controller has the same continuous control as a continuous
controller. The only difference is that with a PWM controller the 1-byte
control value (0...255) is converted to a on/off ratio (0 and 1). For example,
if a control value of 70% is output, the make time will be 7 minutes and
the break time 3 minutes at a default cycle time of 10 minutes.
This transfers the advantages of continuous control (control to the desired
setpoint, no oscillations) to drives that are designed for on/off signals only,
such as electrothermal drives.
The "PWM control value cycle time" can be adjusted to optimise the control
properties of the heating or cooling system. The type of heating or cooling
and the actuator must be considered to set the cycle time appropriately.
The following recommendations can be used:
a) electrothermal actuator
It takes 2-3 minutes to open an electrothermal valve fully.
A cycle time shorter than 15 minutes is therefore not reasonable.
b) underfloor heating
The time of constant of underfloor heating is very large.
A cycle time of 20 minutes is therefore sufficient.
c) hot-water heating
Electrothermal drives are commonly used. A cycle time of
15 minutes gives very good control results.
d) electrical convector heating
Cycle times between 10 and 15 minutes, depending on
the electric heating and room conditions, are recommended.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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4.3.4
Fan Coil
If fan coil is selected under "control types", the control values are output
in the same way as described at continuous controllers.
A fan coil also has the option of controlling fan stages using a 1-byte or
three 1-bit communication objects with a fan coil actuator.
Switching fan stages will heat or cool a room faster.
The fan stage that is to be enabled at which control value is defined on
a separate tab, "fan coil heating" or "fan coil cooling". Note that the threshold
values must not overlap, i.e. the stage 1 threshold value must always be less
that the stage 2 threshold value, which in turn must be less than the stage 3
threshold value.
4.3.5
Control parameters with
PWM and continuous
controller (fan coil)
With continuous control behaviour and switching PWM controllers the preset
control parameters can be used via the installation type of the heating or airconditioning system. If different parameters are required, they are set by free
parameterisation. Free parameterisation should only be used if the user has
sufficient experience in control technology.
The setting "free parameterisation" can be used to set the "proportional
range (Xp)" and the "readjust time (Tn)". The proportional range is above
and below the specified setpoint and determines the speed of the control.
The readjust time is three times the delay time (the delay time is determined
by the inflectional tangent of the heating curve of the room. With both
settings the slower the overall system the greater the values required.
Xp=Proportionalbereich
Stellgröße
Xp = 8 K
Xp = 6 K
Xp = 4 K
Xp=2 K
100%
0%
15°C
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
21°C
25°C
T
91
T
21 °C
Sollwert
Istwert
Wendepunkt
Tu
Tn = 3 * Tu
t
Tu = Verzugszeit
Tn = Nachstellzeit
4.3.6
Two-stage heating
and cooling
In specific instances such as when using underfloor heating, it may be
necessary to install a quick additional stage for the heat control in order
to warm up the room rapidly. When the room thermostat is pre-set to
"supplementary-stage heating enabled", it has a second heating system with
switching control (1-bit) or a "quasi-continuous" control, which is controlled
with the 1-byte values 0% and 100%.
The parameters "gap of additional stage" and "Hysteresis (one-sided)"
enable you to specify when the additional stage switches on and off.
For example, if the setpoint is 18 °C and the hysteresis 0.5 K (one-sided) for
the additional stage, the controller switches on at 18 °C and off at 18.5 °C.
The same settings as for the additional stage heating also apply for the
additional stage cooling, except that for cooling an additional cooling stage
is activated if an adjustable temperature is exceeded to cool the room faster.
Because some actuators close (open without power) at a 1-bit value of "1" or
a 1-byte value of "255" and open at "0", the direction of the control value can
be changed with "invert control value".
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4.4
Setpoints
The ambient temperature controller can be operated with dependent or
individual setpoints. The two options are explained in more detail below.
4.4.1
Dependent setpoints
Temp.
Komfortbetrieb
Standbybetrieb
Frost/HitzschutzBetrieb
Nachtbetrieb
Sollwert Hitzeschutz
Regler kühlt,
wenn Istwert > Kühlen Sollwert
Sollwerte
Kühlen
Kühlen Sollwert
Komfortbetrieb
Totzone zwischen
Heizen und Kühlen
Heizen Sollwert
Komfortbetrieb
Sollwerte
Heizen
Anhebung
Standby
Kühlen
Anhebung
Nacht
Kühlen
Regler fordert keine Leistung
(Stellgröße = 0)
Absenkung
Standby
Heizen
Absenkung
Nacht
Heizen
Regler heizt,
wenn Istwert < Heizen Sollwert
Sollwert Frostschutz
Abhängige Sollwerte in den verschiedenen Betriebsarten,
wenn Heizen und Kühlen aktiv
Dependent setpoints have two base setpoints, one for heating ("heating
setpoint comfort mode") and one for cooling ("cooling setpoint comfort
mode").
The settings "...reduction standby/night mode" and "… reduction
standby/night mode" refer to the base setpoint. This means that, for
example, if "heating setpoint comfort mode" is set to 21 °C and 2 K has been
set for "heating setpoint reduction standby", the heating setpoint is reduced
2 K to 19 °C in standby mode. If 4 K is specified for "heating setpoint
reduction night mode", the heating setpoint in night mode is 17 °C.
The dependence of the setpoints is retained even after a manual setpoint
adjustment. For example, if the user manually adjusts the setpoint of
the specified temperature "heating setpoint comfort mode" up by 1 K to
22 °C, this value is reduced 2 K to 20 °C when standby mode is activated.
In night mode the value is reduced by 4 K, making the setpoint 18 °C.
The user can manually change the parameterised setpoints with the two
push-switches "increase temperature" and "reduce temperature". Push and
hold the "increase temperature" push-switch (approx. 1 s) to switch between
"heating setpoint comfort mode" and "cooling setpoint comfort mode" in
the heating setpoint and the "reduce temperature" push-switch in the cooling
setpoint.
The two setpoints for heating and cooling can be changed as much as
desired over the bus, even without the ETS. A 2-byte temperature value
must be sent to the communication object "base setpoint - control".
The value is saved as "heating setpoint comfort mode" or "cooling setpoint
comfort mode" depending on whether heating or cooling is currently
enabled. The received values are written to the device memory and are
retained even after a bus power failure and restoration. New base setpoints
can also be sent to the device in the event of changes in room usage,
such as by visualisation. A new parameterisation is not required.
The base setpoint reference is taken into account with a manual adjustment
and dependent setpoints. This specifies whether the base setpoint refers
to the comfort temperature for heating, cooling or the mid-range temperature
between heat and cool.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
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"Setpoint heating" is the default setting. In regions where the cooling function
is more important, it is recommended that you change this parameter to
"Setpoint cooling". This makes it easier to set the ambient temperature
controller and raise the cooling setpoints (standby temperature cooling
and automatic night setback).
4.4.2
Individual setpoints
Temp.
Komfortbetrieb
Standbybetrieb
Nachtbetrieb
Sollwert Hitzeschutz
Regler kühlt,
wenn Istwert > Kühlen Sollwert
Sollwerte
Kühlen
Kühlen Sollwert
Standbybetrieb
Frost/HitzschutzBetrieb
Kühlen Sollwert
Nachtbetrieb
Kühlen Sollwert
Komfortbetrieb
Totzone zwischen
Heizen und Kühlen
Regler fordert keine Leistung
(Stellgröße = 0)
Heizen Sollwert
Komfortbetrieb
Heizen Sollwert
Standbybetrieb
Sollwerte
Heizen
Heizen Sollwert
Nachtbetrieb
Regler heizt,
wenn Istwert < Heizen Sollwert
Sollwert Frostschutz
Individuelle Sollwerte in den verschiedenen Betriebsarten,
wenn Heizen und Kühlen aktiv
If individual setpoints are used, individual setpoints are parameterised for
every operating mode ("heating setpoint comfort mode", "heating setpoint
standby", "heating setpoint night mode", "cooling setpoint comfort mode",
"cooling setpoint standby" and "cooling setpoint night mode").
In contrast to the dependent setpoints, the individual setpoints are retained
even after a manual setpoint adjustment. For example, if the user manually
adjusts the setpoint of the specified temperature "heating setpoint comfort
mode" up or down, the parameterised value "heating setpoint standby"
is always called when standby mode is enabled. This means that only
the fixed setpoints for the individual operating modes are called.
The user can manually change the parameterised setpoints with the two
push-switches "increase temperature" and "reduce temperature". Push and
hold the "increase temperature" push-switch (approx. 1 s) to switch between
"heating setpoint comfort mode" and "cooling setpoint comfort mode" in
the heating setpoint and the "reduce temperature" push-switch in the cooling
setpoint.
The parameterised setpoints for can be changed as much as desired for any
operating mode over the bus, even without the ETS. A 2-byte temperature
value must be sent to the corresponding communication object "setpoint
heating comfort", "setpoint heating standby", "setpoint heating night mode",
"setpoint frost protection", "setpoint cooling comfort", "setpoint cooling
standby", "setpoint cooling night mode" or "setpoint heat protection".
The received values are written to the device memory and are retained even
after a bus power failure and restoration. New setpoints can also be sent
to the device in the event of changes in room usage, such as by
visualisation. A new parameterisation is not required.
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4.4.3
Minimum distance
The adjustable parameter "minimum distance between heating and cooling"
is enabled with both dependent and individual setpoints.
The minimum distance is always between "heating setpoint comfort mode"
and "cooling setpoint comfort mode". It acts as a buffer zone to prevent
the two setpoints from overlapping.
Example:
Individual setpoints are selected. "Heating setpoint comfort mode" is set
to 21 °C and "cooling setpoint comfort mode" is set to 26 °C. The dead zone
between heating and cooling is 3 K. If the heating setpoint is moved up,
the dead zone is also moved up. If the adjustment exceeds a temperature
of 23 °C, "cooling setpoint comfort mode" is also adjusted up to ensure that
there is always a minimum distance of 3 K between heating and cooling.
If the cooling setpoint is moved down, the dead zone is also moved down.
If the adjustment exceeds a temperature of 24 °C, "heating setpoint comfort
mode" is also adjusted down to ensure that the minimum distance is also
retained in this case.
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95
4.5
Fan Coil general
Ventilator convectors, also referred to as blower convectors or fan coil units,
are used for decentralised heating and cooling. They are mounted in the
room and supplied by a central heating and cooling system. A distinction
is made between 2-pipe and 4-pipe systems (see also page 87, Section 4.3
Controller). A fan coil unit has multi-stage fans that enable fast adjustment
of room temperature as required by the user. The Fan Coil ambient
temperature controller with display can actuate up to three fan stages
manually or automatically.
The fan stagers can be actuated in three ways:
-
with 1-bit values,
i.e. a separate 1-bit communication object "fan coil stage ... switch"
is available. This is required for "normal" switching actuators. (If KNX
switching actuators and fan coil units are used, note the connection
instructions of the fan coil unit.)
-
with a 1-byte object as count value 0-3,
i.e. there is a 1-byte communication object "fan stage manual 1 byte“,
which is linked to a corresponding communication object of a fan coil
actuator. Here the values are
0 = OFF
1 = stage 1
2 = stage 2
3 = stage 3
-
with a 1-byte object as continuous value 0-100%,
i.e. there is a 1-byte communication object "fan stage manual 1 byte“,
which is linked to a corresponding communication object of a fan coil
actuator. When a stage is manually switched, the stage fast values are
transmitted, which are set on the heating or cooling tab. In heating mode
the fast values for heating, in cooling mode the fast values for cooling.
The parameters of the fan coil actuator must be appropriately configured
to ensure that the fan coil unit also switches the fan stages.
The parameter "evaluate status byte fan stage" can be enabled by a 1-byte
communication object "state fan coil operating state", which is linked to a
corresponding object of a fan coil actuator. The fan coil ambient temperature
controller is able to evaluate which fan stage in the fan coil actuator is
actually enabled. The display shows the value of the communication object
(0 = OFF, 1 = stage 1, 2 = stage 2, 3 = stage 3).
The parameter "status byte evaluate operation" enables a 1-bit
communication object "receive in operation - actuator monitoring". Cyclic
telegrams can be received and evaluated at this object by the fan coil
actuator. This enables the ambient temperature controller to check that
the fan coil actuator is still operating and can be actuated. If the fan coil
actuator indicates a problem and cannot send cyclic telegrams, the ambient
temperature controller indicates this by showing the "fault" symbol in the
display. If the fault in the fan coil actuator is corrected and cyclic telegrams
are being received again, the "fault" in the display disappears and the
ambient temperature controller operates "normally" again.
When adjusting the cycle time "in operation" in the fan coil actuator, note
that it must be at least twice as large as the monitoring time in the ambient
temperature controller ("send cycle time of actuator in s"). A reasonable
cycle time for the actuator is approx. 60 s with a monitoring time of 120 s
in the ambient temperature controller.
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For example, to prevent excessive noise during the night in hotel rooms,
a "stage limitation in night mode" can be set. This means that only the
specified fan stage or lower will be used in night mode. When switching
to another operating mode all fan stages can still be used.
A limitation can be set to "stage 1" or "stage 2" or the fan can be completely
disabled with the parameter "stage restriction in night mode".
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4.6
Compensation
The fan coil ambient temperature controller with display has summer
compensation and winter compensation modes. Both are explained in detail
below.
4.6.1
Summer compensation
To save energy and to maintain the temperature differential when entering
an air-conditioned building, you should adjust the room temperature in
relation to the external temperature in summer (summer compensation
in accordance with DIN 1946). The ambient temperature is increased
by adjusting "cooling setpoint comfort mode".
Raising the room temperature does not, however, mean that you heat up
the room. Rather the adjustment is intended to allow the room temperature
without cooling to increase to a specified value. This prevents an airconditioner from continuing to try to reduce the ambient temperature to
24 °C at an outside temperature of 35 °C.
However, an external temperature sensor that sends its measured values
to the KNX and therefore can be evaluated by the ambient temperature
controller with display is required to enable summer compensation.
The following parameters are available for summer compensation
-
"summer compensation at lower outside temperature",
-
"summer compensation at higher outside temperature",
-
"summer compensation at lower setpoint offset" and
-
"Summer compensation at upper setpoint offset".
The lower and upper outside temperature value specifies from and up
to which temperature a setpoint should be corrected.
The lower and upper setpoint offset specifies how many K the setpoint
should be adjusted during summer compensation in the parameters or
by the user.
Typical values for summer compensation are
-
20 °C:
lower outside temperature
-
32 °C:
upper outside temperature
-
0 K:
lower setpoint offset
-
4 K:
upper setpoint offset
This means that a floating setpoint increase from 0 to 4 K will be
implemented if the outside temperature increases from 20 °C to 32 °C.
Example:
Parameters for "cooling setpoint comfort" 25 °C are defined in the bottom
graph. With rising outside temperature the parameterised setpoint is
adjusted from an outside temperature of 20 °C from 25 °C to 29 °C.
The 29 °C is reached at an outside temperature of 32 °C. From there
the setpoint is no longer increased as the outside temperature continues
to rise.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
98
Sollwert/°C
30
25
20
10
10
20
30
40 Außentemperatur/°C
Note:
CO is shown in the display of the ambient temperature controller with active
compensation.
4.6.2
Winter compensation
To improve comfort and to maintain a reasonable temperature differential
when entering a room with a large window area, you should increase
the room temperature depending on the outside temperature in winter
(winter compensation). The ambient temperature is increased by adjusting
"heating setpoint comfort mode".
Similarly to summer compensation, an external temperature sensor that
sends its measured values to the KNX and therefore can be evaluated by
the ambient temperature controller with display is required to enable winter
compensation.
The following parameters are available for winter compensation
-
"winter compensation lower temperature",
-
"winter compensation upper outside temperature",
-
"winter compensation lower setpoint offset" and
-
"winter compensation upper setpoint offset".
The lower and upper outside temperature value specifies from and up
to which temperature a setpoint should be corrected.
The lower and upper setpoint offset specifies how many K the setpoint
should be adjusted during winter compensation in the parameters or by
the user.
Typical values for winter compensation are
-
0 °C:
lower outside temperature
-
10 °C:
upper outside temperature
-
4 K:
lower setpoint offset
-
0 K:
upper setpoint offset
This means that a floating setpoint increase from 0 to 4 K will be
implemented if the outside temperature falls from 10 °C to 0 °C.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
99
Example:
Parameters for "heating setpoint comfort" 21 °C are defined in the bottom
graph. With falling outside temperature the parameterised setpoint is
adjusted from an outside temperature of 10 °C from 21 °C to 25 °C.
The 25 °C is reached at an outside temperature of 0 °C. From there
the setpoint is no longer increased as the outside temperature continues
to fall.
Sollwert/°C
30
21
20
10
-10
0
10
20 Außentemperatur/°C
Note:
CO is shown in the display when compensation is enabled.
© 2009 Busch-Jaeger Elektro GmbH – A Company of the ABB Group
100
A member
of the ABB Group
Busch-Jaeger Elektro GmbH
P.O.Box
58505 Lüdenscheid
Freisenbergstraße 2
58513 Lüdenscheid
Germany
www.Busch-Jaeger.com
[email protected]
Central sales service:
Phone: +49 (23 51) 9 56-0
Fax:
+49 (23 51) 9 56-13 80
BJE 1012/03.09/0502-D, dpi
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