ABB i-bus FCC/S 1 1 Series Product Manual page 103

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ABB i-bus KNX
Parameters
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7.4.1.1.1.1.6 Dependent Parameter
Actuate basic-stage cooling via
This parameter is not visible if the Basic-stage cooling parameter is deactivated.
Options:
The way the control value for the basic-stage cooling is to be output is set using this parameter.
• Internal output A (valve); Internal output B (valve): If one of the internal outputs is selected, the
control value is output directly on this physical output where it is converted into the correspond-
ing output signal.
The outputs A and B are used to actuate valve drives.
In parallel to the actuation via the corresponding internal output, the control value is also output
via the related Status Control value Basic-stage cooling group object.
(Selection in the Type of heating/cooling system parameter: 4-pipe)
Depending on the selection in the Actuate basic-stage heating via parameter, it may not be possi-
ble to select all options. If one of the outputs has already been selected here, it cannot also be
used as an output for the basic-stage cooling.
Example:
If the Internal output A (valve) option has been selected as the output for the basic-stage heating,
this cannot be selected as the output for the basic-stage cooling. Conversely, this statement also
applies on the selection of Internal output B (valve).
Only FCC/S 1.2.x.1 & 1.3.x.1:
If the Use 6-way valve parameter has been parameterized with Yes, this parameter is pre-set to
Internal output A (valve) and cannot be changed.
(Selection in the Type of heating/cooling system parameter: 2-pipe)
In a 2-pipe system, heating and cooling are undertaken using the same device (e.g. fan coil unit).
Here it is possible that either the same valve is used for heating and cooling or that two valves
are used because the heat/cooling is output into the room via a dedicated heating/cooling coil.
For this reason it is therefore possible here to output the control values for heating and cooling on
the same output.
• Group object: If Group object has been selected as the option, there is no actuation via any of
the internal outputs, instead the control value is only output on the bus.
The control value is output via the related Status Control value Basic-stage cooling group ob-
ject.
Depending on the option selected in the Actuate basic-stage heating via parameter, this parame-
ter may have a different standard value.
The settings for the exact control parameters are made in the Temperature controller – Basic-
stage cooling parameter window.
The settings for the actuation of the control values via the valve outputs are made in the related
valve parameter window.
Only FCC/S 1.2.x.1 & 1.3.x.1: If the Use 6-way valve parameter has been parameterized with
Yes, then this parameter is pre-set to Internal output A (valve) and cannot be changed.
Internal output A (valve)
Internal output B (valve) (Not for FCC/S 1.4.1.1)
Group object
Note
Note
FCC/S 1.X.X.1 | 2CDC 508 200 D0211 Rev A 103