● Heating / cooling control: The actuator uses two separate setpoints for heating and cool-
ing each with a range 0...100%.
● Position control: The actuator is controlled with a 0...100% position setpoint.
Operating mode “Heating / cooling control”
When using “heating / cooling control” the parameters as listed below are available. Parameter sets for 6-port control ball valves DN 10 and DN 20 can be selected. Details on the characteristic curves of these two valves can be found in the datasheet A6V10564480.
Note that the valve angle [°] moves counter-clockwise, whereas the actuator position [%]
moves clockwise. Therefore valve angle 15° is achieved by an actuator position of 84% etc.
One of the two setpoints (heating or cooling) needs to be “0%” in order for the actuator to be
able to move. Are both setpoints not equal to “0%”, the actuator doesn’t move until the
setpoint conflict is resolved.
Valve an gle and act uator posi ti on, exam ple for VWG41.20
Parameters for standard piping of heating / cooling:
ParameterVWG41.10VWG41.20
Valve angleActuator positionValve angleActuator position
Max. position heating15°84%15°84%
Min. position heating30°67%40°55%
Closed position45°50%45°50%
Min. position cooling60°33%50°45%
Max. position cooling75°16%75°16%
By parameter inversion, heating and cooling are swapped:
ParameterVWG41.10VWG41.20
Valve angleActuator positionValve angleActuator position
Max. position heating15°16%15°16%
Min. position heating30°33%40°45%
Closed position45°50%45°50%
Min. position cooling60°67%50°55%
Max. position cooling75°84%75°84%
The 6 port control ball valve can
be mounted as shown in the
mounting instruction
A6V10636144 (coil facing
upward) or rotated by 180° (coil
facing downward). The ETS
parameter settings remain the
same, but heating and cooling
change their sides (cf. tables
below).
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Operating mode “Position control”
Parameters available in “position control”:
ParameterRangeDescriptionFactory setting
Opening direction CW (R) / CCW (L) Opening dir ection of the actuatorCW (R)
Max. position0…100%Setting for the upper position limit100%
Min. position0…100%Setting f or the lower position limit0%
Parameterization of the KNX bus integration
The following parameters are usually checked and set by the systems integrator to achieve
the right level of bus traffic generated by the actuator or to define the behavior in case of
communication interruption. Parameters in the group “advanced” can be left unchanged
unless a special configuration is required.
Parameter group “Standard”:
ParameterRangeDescriptionFactory setting
Backup timeout0…60 min
0 min = disabled
Backup modeBackup position
Keep last position
Backup value0…100%Position the actuator drives to in case of
Time interval to detect communication interruption.
If disabled, the actuator controls to the last received
setpoint until a new setpoint is received.
Actuator behavior when the communication timeout
has been exceeded (no setpoint received within the
defined time inter val).
∂ Backup position: Actuator drives to defined
position
∂ Keep last position: Actuator keeps position
communic ation interruption
30 min.
Backup position
50%
Parameter group “Advanced”:
ParameterRangeDescriptionFactory setting
Hysteresis (COV)
act uator pos ition
Min. repetition time
act uator pos ition
Override position 1 0…100%Position to which the actuator drives if the associated
Override position 2 0…100%Position to which the actuator drives if the associated
1)
COV = Change of value
1...20%Threshold for the actuator position. CO V below this
1)
10...900 sMinimum waiting time until a COV above the
Failure to comply with national safety regulations may result in personal injury and
property damage.
●Observe national provisions and comply with the appropriate safety regulations.
Mounting positi ons
IP54 in the following mounting positions
Maintenance
Disposal
Warranty
The rotary actuators are maintenance-free.
Disconnect the electrical connections from the terminals if you want to work at the device.
The device is considered electrical and electronic equipment for disposal in
terms of the applicable European Directive and may not be disposed of as domestic garbage.
∂ Dispose of the device through channels provided for this purpose.
∂ Comply with all local and currently applicable laws and regulations.
Technical data on specific applications are valid only together with Siemens products listed
under "Equipment combinations". Siemens rejects any and all warranties in the event that
third-party products are used.
Note
When using the actuators in connection with components of other manufacturers,
correct functioning must be ensured by the user, and Siemens will assume no
responsibility.
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Communication protocolConnection typeKNX-TP (el. isolated)
Bus load5 mA
Degree of protection
Degree of protectionDegree of protection acc. to EN 60529
IP54
(see mounting instruction)
Saf et y classSafety class acc. to EN 60730III
Environmental conditions
Applicable standardIEC 60721-3-x
OperationClimatic conditionsClass 3K5
Mounting locationIndoors
Temperature general0…50 °C
Humidity (noncondensing)5…95 % r. F.
TransportClimatic conditionsClass 2K3
Temperature-25…70 °C
Humidity5...95 % r. h.
StorageClimatic conditionsClass 1K3
Temperature-5…45 °C
Humidity5...95 % r. h.
Directives and Standards
Product standardEN 60730- x
Product f amily standardEN 50491-2, EN 50491-3, EN 50491-5
General requirements for Home and
Building Electronic Systems (HBES) and
Building Automation and Control
Systems (BACS)
Electromagnetic compatibility (Application)For residential, commercial and industrial
environments
EU Conformity (CE)A5W00003842
RCM Conf ormityA5W00003843
1)
1)
UL, cULAC 24 VUL 873 http://ul.com/database
Environmental compatibility
The product environmental declaration A6V 102099381) contains data on
environmentally compatible product design an d assessments (RoHS compliance,
materials composition, packaging, environmental benefit, dis posal).
Dim ensions / Weight
WeightWithout packaging0.6 kg
Dimensions71 x 158 x 61 mm
1)
The documents can be downloaded from http://siemens.com/bt/download
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Diagrams
wiring, operation, etc.
Internal diagram / Power supply and communication cables
The KNX rotary actuator is supplied with two prewired power supply and communication
cables.
G..B111. 9E/KN
Note
Dimensions
Core
desig.
Cable 1: P ower / black sheathing
1red (RD)GSystem voltage AC 24 V
2black (BK)G0System neutral AC 24 V
Cable 2: KNX / green sheathing
1red (RD)CE+KNX CE+
2black (BK)CE-KNX CE-
Core colorTerminal
code
Description
The operating voltage at terminals G and G0 must comply with the requirements under
SELV or PELV.
Safety transformers with twofold insulation as per EN 61558 required; they must be designed
to be on 100 % of the time.