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Valve outputs | Channel-independent functions
blocks or in hotel rooms).
In the parameter setting "individually", each valve output possesses its own para-
meter pages in the ETS.
9.2.1 Channel configuration parameters
General -> Configuration
VO x (x = 1 ... 6) Use
Valve outputs that are not required can be activated or deactivated.
If the following parameter "Parameterisation" is set to "like VO 1" for one of the fol-
lowing valve outputs, valve output 1 is activated automatically.
VO x (x = 1 ... 6) Parameterisation
To simplify the configuration, all the valve outputs can be assigned to the same
parameters in the ETS and thus configured identically. This parameter stipulates
whether a valve output of the device can be configured individually or whether the
parameters of valve output 1 are to be applied.
For valve output 1, the parameter is permanently set to "individually".
Channel-independent functions
9.3
The heating actuator possesses a number of channel-independent functions that can
be used for all valve outputs. To be able to use these functions, they must be en-
abled on the "General valve outputs" parameter page. The parameters of these chan-
nel-independent functions are set on parameter pages of their own.
In addition to the general enabling of the channel-independent functions, the indi-
vidual valve outputs must also, in some cases, be assigned to the functions on the
parameter pages "VOx - General -> Assignments".
9.3.1 Heat requirement
Heat requirement control
The heating actuator possesses heat requirement control. Here, the actuator continu-
ously evaluates the command values of assigned outputs and makes general heat
requirement information available as a 1-bit control value in the form of limiting value
monitoring with hysteresis. Using a KNX switch actuator, this allows the energy-effi-
cient activation of burner and boiler controllers with suitable control inputs (e.g. re-
quirement-orientated switchover between the reduction and comfort setpoint in a
central combi boiler).
A heat requirement is only signalled by the actuator via the object of the same name
when at least one command value of the assigned outputs exceeds a limiting value
with hysteresis defined in the ETS. A heat requirement signal is retracted when the
limiting value is reached or undershot again (see figure 5). The telegram polarity of
the heat requirement information can be configured.
Heating actuator 6-gang with controller | Order no. 2139 00 | 21393100
Checkbox (yes / no)
individually / like VO 1
Page 39 of 257
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