ABB i-bus® EIB Room thermostat solo®, FM Type: 6124-xx

ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
The application module room thermostat
solo®, FM Type: 6124-xx is placed on a
flush-mounted bus coupler.
The room thermostat is used for
individual room temperature control in
heating and air conditioning systems.
The controller can issue a switching
(PWM control) or a continuous
actuating signal.
Comfort mode, standby mode, night
operation or frost/heat protection mode
can be preselected via the EIB. The
setpoint values can be parameterised.
The LC display provides information
about the current temperatures and the
operation mode as well as the time
and date.
The 2 rockers can be used to carry out
a setpoint adjustment or a change in
the operation mode.
In addition, a cover frame in the
chosen colour in either the Solo or
future design is required as well as a
flush-mounted bus coupler.
Technical Data
Power supply
Operating and display elements
– EIB
– LC display
Connections
Type of protection
–
–
–
–
Protection class
Measuring range
Ambient temperature range
Design
Colour
–
–
–
–
–
Mounting
Dimensions
Weight
Certification
CE norm
–
–
–
–
–
2 - 2
24 V DC, via the bus line
To display the operation mode,
temperature, date and time
2 rockers, each with 2 push button contacts
2 LEDs
green
Bus coupler FM (6120U-102)
10-pole plug connector
IP 20, EN 60 529,
mounted on the bus coupler
II
Room temperature
0 °C … 40 °C
Operation
- 5 °C … 45 °C
solo®
– future
savanna / ivory
– savanna / ivory
davos / studio white
davos / studio white
manhatten / graphite
manhatten / graphite
samoa / light green
stone / light grey
toscana / crimson red
attica / blue-grey
clipped onto flush-mounted insert
63 x 63 x 23 mm (H x W x D)
0.01 kg
EIB-certified
in accordance with the EMC guideline and
the low voltage guideline
0073-1-7037
March 2003
ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
Application programs
Number of
communication objects
20
Continuous / Switch Heat Cool TP/4
Max. number of
group addresses
20
Max. number of
associations
21
Circuit diagram
1
4
2
5
3
1 Bus cable
2 Bus terminal
3 Bus coupler FM
March 2003
4 Application module
5 10-pole plug
2 - 3
ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
Continuous / Switch Heat Cool TP/4
The application program is intended
for the application module room
thermostat solo.
The time and date can e.g. be sent by
a visualisation terminal or a clock with
a DCF77 receiver.
The room thermostat is able to use
various operating modes and setpoint
values to heat or cool a room. They can
be selected and modified via the bus
or via the rockers.
The setting “Display of heat/cool is
active” describes when the symbols
“Heat” or “Cool” are displayed. The
setting “when heating or cooling is
required” means that the symbols are
also displayed if the frost or heat
protection mode is active. In the setting
“if operation mode is active”, the
symbols are displayed if heating or
cooling is actually being carried out.
T
Selection in ETS2
– ABB
Heating
Thermostat
A green LED is available for each of
the two rockers. They can be
permanently switched on or off via the
parameter “Function of LED”.
The LCD can be lit if required. The
parameter “LCD lighting” is available
for this purpose. It is thus possible for
the LCD lighting to be always switched
on or off or to use the lighting
depending on the communication
object “Backlighting for display”.
Various communication objects are
displayed or hidden depending on the
parameter settings.
LC display
The room thermostat has an LC
display. The current room temperature
(actual value) is displayed by default.
By modifying the parameter
“Temperature display in normal
operating mode”, it is possible to
display the current setpoint or the
relative setpoint which is produced by
setpoint adjustment via rocker 1.
Alternatively, the display can be
deactivated completely.
Operation modes
The room thermostat has four
operation modes:
– Frost protection mode: The room
thermostat is out of service; heating
is only carried out if the room
temperature drops so low that there
is a risk of the heating installation
freezing.
– Comfort mode: The setpoint for the
room temperature is set to a value
which enables normal use of the
room at a pleasant temperature.
– Standby mode: The room
temperature drops so low (e.g.
during periods of absence) that the
heating costs are saved. The comfort
temperature can however be
reached again quickly.
– Night operation: The room is not
used for long periods during the
night; the room temperature is
reduced to a pleasant temperature
during the night and can be raised
relatively quickly again in the
morning.
In addition, the current operating mode
and/or the time and date can be read
in the LC display using various
symbols. The display of the time and
date is dependent on the parameters
for the info lines. The time and date are
not displayed by default.
If e.g. the current time or date should
be read in the info line, the parameter
“Content of info line” should be set
accordingly. In addition, the group
address “Time” and/or “Date” must be
linked with the corresponding object of
the room thermostat.
Night
object
Comfort
object
Frost/heat
protection object
Operation mode
Frost prot.
Comfort
Night
Standby
2 - 4
1
0
1
0
1
0
March 2003
ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
It is possible to switch between these
operation modes using switching
telegrams (see also the diagram of the
operation modes). The frost/heat
protection mode has the highest
priority i.e. it is not possible to switch to
another operation mode in this case.
The frost/heat protection mode must
first be deactivated i. e. by closing an
opened window. Comfort mode has the
next highest priority followed by night
operation. If none of these three
operation modes are active, the room
thermostat is in standby mode.
Party time (comfort extension)
If the room thermostat is switched to
night operation via the bus, it is
possible to active party time by
pressing the right side of rocker 2
(changes to comfort mode). Once the
party time has elapsed, the thermostat
switches back to night operation.
During the party time, the symbols for
night operation and comfort mode are
shown on the display. By pressing the
left side of rocker 2, the party time can
be manually reset to night operation.
To prevent the uncontrolled
overheating of rooms, it is possible to
preselect a setpoint for heat protection
mode to specify when cooling should
take place. If heat protection is not
required, the cooling can be switched
off. In this case, the value 99.9°C is
shown on the display on receipt of an
“On” telegram at the frost/heat
protection object instead of the current
setpoint and the value “99.84 °C” is
sent on the EIB.
The base setpoint can be modified via
the bus as often as required. To do so,
a 2 byte temperature value must be
sent to the object “Base setpoint”.
This function can also be used for the
temporary deactivation of heat and
frost protection modes. As during night
operation, the device switches to
comfort mode for the set period. The
switching on and off of the function is
carried out in the same way. During
this comfort extension, the symbols for
frost protection and comfort are
indicated on the display.
The setpoint temperature can be
manually changed with the first rocker.
The parameters “Range for manual
setpoint selection”, “Maximum
increase of setpoint for heating” and
“Maximum reduction of setpoint for
cooling” specify the scope for
changing the setpoint. If a new
telegram is sent to the communication
object “Base setpoint” after a manual
setpoint adjustment, it is thus also
possible to reverse the manual
setpoint adjustment again.
Setpoints
Heat / Cool
The following setpoints can be set for
the heating mode: “Base setpoint in °C
(16..35) (comfort temperature)”,
“Reduced heating in standby mode in
K (1..8)”, “Reduced heating during the
night in K (1..12)” and “Setpoint frost
protection in °C (5..10)”.
So that the room thermostat can
address the various controller types for
heating or cooling mode, it can be
parameterised as a continuous or
switching controller. In the case of a
switching controller, it is possible to
choose between a PWM controller and
a 2-step controller.
The comfort temperature for the
cooling mode can be set via the
“Insensitive range between heat and
cool in K (1-10)”. The setpoints for
standby and night operation refer to
this value: “Increased cooling in
standby mode in K (1..8)” and
“Increased cooling during the night in
K (1..12)”.
March 2003
If cooling should take place at 25°C
e.g. with a base setpoint of 22°C in
comfort mode, an insensitive zone of
3°C must be set. If cooling should then
take place in standby mode at 27°C,
the value must be increased by 2°C.
An increase of 4°C is required for
cooling during night operation from
29°C.
In the case of a continuous control
response and a switching PWM
controller, the preset control
parameters can be used via the
system type of the heating or air
conditioning system. If other control
parameters are required, they can be
set individually via more detailed
parameterisation. This should only be
used if you have sufficient experience
in the control technology.
2 - 5
ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
Temp.
Komfortbetrieb
Standbybetrieb
Frost/HitzschutzBetrieb
Nachtbetrieb
Sollwert Hitzeschutz
Regler kühlt,
wenn Istwert > Kühlen Sollwert
Sollwerte
Kühlen
Anhebung
Standby
Kühlen
Regler fordert keine Leistung
( Stellgröße = 0 )
Totzone zwischen
Heizen und Kühlen
Basis-Sollwert
Sollwerte
Heizen
Anhebung
Nacht
Kühlen
Absenkung
Standby
Heizen
Absenkung
Nacht
Heizen
Regler heizt,
wenn Istwert < Heizen Sollwert
Sollwert Frostschutz
Sollwerte in den verschiedenen Betriebsarten, wenn Heizen und Kühlen aktiv
The continuous controller issues its
control value to a 1 byte object. To
protect electrothermal valves which
are connected to heating actuators
with PWM control, it is advisable to
limit the dynamic range. This is carried
out via the parameter “Minimum
control value” or “Maximum control
value”. If e.g. a maximum control value
of 80% is preset, the thermostat always
automatically sends the value 255
when a control value of 204 has been
exceeded.
To prevent unnecessary loading of the
bus, it is possible to specify the size
that the change at the control value
must reach in order to be sent on the
bus. The setting is carried out as a
percentage value. The sending of the
control value is also restricted by a
cyclic period if it has not been
changed. This cyclic period should not
be too short (e.g. every 10 min).
In the case of a switching PWM
controller, the output value of the
controller (0...255) is converted into
ON/OFF control. If e.g. a control value
of 70% should be sent, the ON time
should be set at 7 minutes and the
OFF time at 3 minutes with a preset
cyclic period of 10 minutes. The
dynamic range can be restricted as
with the continous controller.
To optimise the control characteristics
of the heating or cooling system, the
“Cyclic time of the switching control
value” can be set.
2 - 6
The type of heating or cooling as well
as the valve drive used must be taken
into account when setting the cyclic
time. The following recommendations
can be implemented:
a)Electrothermal valve drive
To open a thermoelectric valve drive
fully takes approx. 2-3 minutes. A
shorter cyclic time than 15 minutes is
therefore not advisable.
b)Floor heating
The time constant for floor heating is
very large. A cyclic time of 20
minutes is therefore sufficient.
c) Warm water heating
Thermoelectric valve drives are often
used in this case. A cyclic period of
15 minutes produces extremely
good results.
d)Electric convector heating
Cyclic times between 10 and 15
minutes are recommended,
depending on the electric heating
and conditions in the room.
If a 2-step controller is used for heating
or cooling control, it is possible to
select various levels for the hysteresis
by which the setpoint fluctuates. For
example, if the setpoint during heating
mode is at 20°C and the hysteresis is
at 0.5 K, the controller switches on at
19.5°C and off again at 20.5°C. The
hysteresis is then based on how
quickly the heating system can warm
up the room or how quickly the cooling
system can lower the temperature in
the room as well as the customer‘s
sensitivity to temperature levels.
March 2003
ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
The hysteresis should not be set too
low as otherwise the valve drive
continually opens and closes. It should
also not be set too high as the
temperature fluctuations in the room
are then fairly considerable.
The parameter “Reduction of
hysteresis” is used to increase the
level of accuracy of the controller. If this
parameter is activated, the hysteresis
is reduced for example every minute
by 0.1 K until it reaches 0 K, if required.
There is effectively a decrease in the
temperature fluctuations during the
closed-loop control as a result of the
reduction in the hysteresis. If a
reduction should be used, it is
advisable to set it at less than a fifth of
the hysteresis.
e.g. Hysteresis 0.5 K =>
Reduction < 0.1 K/min
In certain cases (floor heating), it can
be necessary to install a fast-acting
additional level for the heating control
in order to be able to heat the room up
quickly. In the setting “2-step heating”,
the room thermostat can control a
second heating system via a switching
controller (1 bit) or via a semicontinuous controller with the 1 byte
values of 0% and 100%.
With the parameters “Difference
between basic heating and additional
heating” and “Hysteresis (one-sided)”,
it is determined when the additional
level is switched on and when it is
switched off.
Automatic shading
To prevent the room from warming up
due to sunlight, automatic shading can
take place by lowering one or several
blinds. The shading object “Move” is
used for this purpose.
The parameter “Automatic shading ...”
determines at which temperature the
blinds should be lowered.
If the temperature again falls below the
set shading temperature, no command
is issued to raise the blinds. The blinds
can be raised e.g. at a specific time
using a central command.
Group master mode
In large open-plan offices for example,
it can be difficult to achieve a good
level of control throughout the room
with only one room thermostat. For
these cases, it is possible to divide the
room into several zones with a room
thermostat in each zone. So that these
thermostats always use the same
setpoint value, it is possible to activate
the parameter “Group master mode”
for one of the devices. This device then
has the 2 byte communication object
“Base setpoint for slaves - Telegr.
temperature” which is linked to the 2
byte communication objects “Base
setpoint - Telegr. temperature” of the
other devices. The manual setpoint
adjustment should be disabled for
these devices.
As some valve drives close following a
1 byte value of “255” or a 1 bit value of
“1” and open at other corresponding
values, the “Mode of control output“
can be inverted.
The toggling between heating and
cooling is carried out automatically by
the room thermostat. If this is not
required, the “Toggle between heat
and cool” can be carried out by an
external, central controller via the 1 bit
object “Operation mode - Heat/Cool”.
In this setting, the heating or cooling
symbols are permanently visible
during the corresponding operation
mode. The object is enabled via the
parameter “Toggle between heat and
cool”.
March 2003
2 - 7
ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
Offset
If the measured temperature becomes
invalid because the bus coupler itself
has warmed up, it is possible to set an
“Offset for temperature
measurement...”.
The installation site of the thermostat
and the suitable selection of parameter
settings is a decisive factor in accurate
temperature measurements.
Communication objects
for heating and cooling,
with switching control values
No.
1
3
4
5
6
7
8
9
10
Type
1 bit
1 bit
1 bit
1 bit
1 bit
1 bit
2 byte
2 byte
2 byte
Object name
Backlighting for display
Operation mode
Operation mode
Operation mode
Control value
Control value
Actual temperature
Base setpoint
Current setpoint
Function
Switch
Frost/heat protection
Night operation
Comfort mode
Heat (switching)
Cool (switching)
Telegr. actual temperature
Telegr. temperature
Telegr. temperature
Communication objects
for display of time and date,
automatic shading,
2-step heating,
continuous control values
No.
…
2
…
6
7
…
12
13
Type
Object name
Function
1 bit
Autom. shading
Telegr. move Up-Down
1 byte
1 byte
Control value
Control value
Heat (continuous)
Additional heating (continuous)
3 byte
3 byte
Info line
Info line
Date
Time and day
No.
…
6
7
…
10
11
…
Type
Object name
Function
1 byte
1 byte
Control value
Control value
Heat (continuous)
Cool (continuous)
2 byte
1 bit
Base setpoint for slaves
Operation mode
Telegr. temperature
Heat/cool
Communication objects
for heating and cooling with,
external toggling of operation mode,
active group master mode
2 - 8
March 2003
ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
Parameters
The default setting for the values
is printed in bold type.
General:
– Function of rocker 1
– Function of LED 1
– Function of rocker 2
– Function of LED 2
– LCD lighting
– Content of info line
no function
setpoint adjustment
always OFF
green orientation light
no function
toggle between standby/comfort
always OFF
green orientation light
always ON
always OFF
acc. to object value (1=ON, 0=OFF)
acc. to inverted object value, e.g. for
night operation
line is empty
date
time
alternate date and time
Only if display of date and time is selected:
– Change interval for info line
2s/4s/6s/8s
– Day format
German (MO, DI, MI, DO, FR, SA, SO)
English (MON, TUE, WED, THU, …)
– Date format
German (TT.MM.JJ)
English (MM.TT.JJ)
Controller general:
– Used control functions
– Party time (comfort extension)
– Frost/heat protection can be manually
selected (comfort extension)
– Temperature display in normal
operating mode
– Temperature display in adjustment
mode
– Display of heat/cool is active
– Operation mode after reset
– Automatic shading
(see also “Setpoints”)
– Group master mode
March 2003
Heating and cooling
Heating
2-step heating
inactive
30 min
1 hour
1.5 hours
2 hours
2.5 hours
3 hours
4 hours
enabled
disabled
actual value
current setpoint
no temperature display
rel. current setpoint (+/– K)
setpoint temperature
rel. current temperature (+/– K)
when heating or cooling is required
if operation mode is active
Comfort
Standby
Night
Frost/heat protection
inactive
active
inactive
active
2 - 9
ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
Parameters
The default setting for the values
is printed in bold type.
Room temperature:
– Change of current setpoint for
automatic sending
– Send current setpoint if changes
– Cyclic time for autom. sending
of temp. difference
– Offset for temperature measurement
(change in measured value by
(-128 … 127)x0.1 K)
– Detection of actual temperature
Setpoints:
– Base setpoint in °C (16 … 31)
(comfort temperature for heating)
– Reduced heating in standby mode
in K (1…8)
– Reduced heating during the night
in K (1…8)
– Setpoint frost protection in °C (5…10)
Only for heating and cooling:
– Insensitive range between heat
and cool in K (1 … 8)
– Increased cooling in standby mode
in K (1 … 8)
– Increased cooling during the night
in K (1 … 8)
– Setpoint heat protection
– Toggle between heat and cool
2 - 10
inactive
at 0.2 K
at 0.4 K
at 0.6 K
…
at 2.0 K
inactive
active
no cyclical sending
every 3 min
…
every 20 min
every 30 min
every 60 min
–128 … 0 … 127
internally
externally
21 °C
4K
4K
7 °C
4K
2K
4K
cooling disabled /
30 °C / 35 °C / 40 °C / 44 °C
automatically
externally
March 2003
ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
Parameters
The default setting for the values
is printed in bold type.
Heating:
– Output of control value
For switching control value:
– Control type
Only for two-step control:
– Hysteresis
– Reduction of hysteresis
– Cyclic time for automatic
sending
– Mode of control output
Only for PWM control:
– Control parameter
continuous / switching
Two-step control / PWM control
0.3 K / 0.5 K / 0.7 K / 1.0 K / 1.5 K / 2 K
inactive
0.2 K/min
…
0.029 K/min
inactive
…
every 20 min
every 30 min
every 60 min
normal / inverted
by installation type
more detailed
Only if “by installation type” is selected:
– Type of heating
Warm water heating (1.5 K/100 min)
Electrical heating (1.5 K/50 min)
Floor heating (4 K/200 min)
Only if “more detailed” is selected:
– Proportional range
1 K / 1.5 K / … / 10 K
– Readjust time in min.
0 min / 10 min / … / 100 min / 120 min /
… / 240 min
– Cyclic time of the switching
3 min / 5 min / 10 min / 15 min /
control value
20 min / 30 min
– PWM cycle is 0% up to an
0 % / 5 % / 10 % / … / 30 %
output value
– PWM cycle is 100% down to
70 % / … / 90 % / 95 % / 100 %
an output value
– Mode of control output
normal / inverted
For continous control value:
– Control parameter
by installation type
more detailed
Only if “by installation type” is selected:
– Type of heating
Warm water heating (1.5 K/100 min)
Electrical heating (1.5 K/50 min)
Floor heating (4 K/200 min)
Only if “more detailed” is selected:
– Proportional range
1 K / 1.5 K / … / 10 K
– Readjust time in min.
0 min / 10 min / … / 100 min / 120 min /
… / 240 min
– Minimum control value
0 % / 5 % / 10 % / … / 30 %
– Maximum control value
70 % / … / 90 % / 95 % / 100 %
– Cyclic time for automatic sending
inactive
of control output
…
every 20 min
every 30 min
every 60 min
– Mode of control output
normal / inverted
Additional heating:
– Difference between basic heating
and additional heating
– Hysteresis (one-sided)
– Cyclic time for automatic sending
of control value
– Type of control value
– Mode of control output
March 2003
1K/2K/3K
0.15 K / … / 1.0 K
no cyclical sending / every 3 min /
… / every 15 min / … / every 60 min
semi-continuous (1 byte: 0% or 100%)
switching (1 bit)
normal / inverted
2 - 11
ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
Parameters
The default setting for the values
is printed in bold type.
Cooling:
– Output of control value
For switching control value:
– Control type
Only for two-step control:
– Hysteresis
– Reduction of hysteresis
– Cyclic time for automatic
sending
– Mode of control output
Only for PWM control:
– Control parameter
continuous / switching
Two-step control / PWM control
0.3 K / 0.5 K / 0.7 K / 1.0 K / 1.5 K / 2 K
inactive
0.2 K/min
…
0.029 K/min
inactive
…
every 20 min
every 30 min
every 60 min
normal / inverted
by installation type
more detailed
Only if “by installation type” is selected:
– Type of cooling
Cooling ceiling (5 K/240 min)
SplitUnit / convector fan
(4 K/90 min)
Only if “more detailed” is selected:
– Proportional range
1 K / … / 4 K / … / 10 K
– Readjust time in min.
0 min / 10 min / … / 90 min / 120 min /
… / 240 min
– Cyclic time of the switching
3 min / 5 min / 10 min / 15 min /
control value
20 min / 30 min
– PWM cycle is 0% up to an
0 % / 5 % / 10 % / … / 30 %
output value
– PWM cycle is 100% down to
70 % / … / 90 % / 95 % / 100 %
an output value
– Mode of control output
normal / inverted
For continuous control value:
– Control parameter
by installation type
more detailed
Only if “by installation type” is selected:
– Type of cooling
Cooling ceiling (5 K/240 min)
SplitUnit / convector fan
(4 K/90 min)
Only if “more detailed” is selected:
– Proportional range
1 K / … / 4 K / … / 10 K
– Readjust time in min.
0 min / 10 min / … / 90 min / 120 min /
… / 240 min
– Minimum control value
0 % / 5 % / 10 % / … / 30 %
– Maximum control value
70 % / … / 90 % / 95 % / 100 %
– Cyclic time for automatic sending
inactive
of control output
…
every 20 min
every 30 min
every 60 min
– Mode of control output
normal / inverted
2 - 12
March 2003
ABB i-bus® EIB
Room thermostat solo®, FM
Type: 6124-xx
Parameters
The default setting for the values
is printed in bold type.
Manual setpoint selection:
– Range for manual setpoint selection
Only for manual selection:
– Maximum increase of setpoint
for heating
– Maximum reduction of setpoint
for cooling
– Exp.: Range for setpoint selection:
+/– 5K
Max. increase in heating: 3 K
Max. reduction in cooling: 1 K
– Behaviour on receipt of a
base setpoint
March 2003
disabled
+/– 1 K
+/– 3 K
+/– 5 K
0K/1K/2K/3K/4K/5K
0K/1K/2K/3K/4K/5K
Setting range for heating –5K to +3K
Setting range for cooling –1K to +5K
manual setpoint selection unchanged
reset manual setpoint selection
2 - 13