ABB i-bus KNX Product Manual page 31

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ABB i-bus KNX
Device technology
Telegram processing with active manual operation
Incoming safety telegrams such as Weather alarms, Block and Forced operation have the highest priority
and are implemented. All other commands are received and stored. After manual operation is deactivated,
the device will update.
If a telegram with the value 1 is received via the communication object Disable/enable manual operation,
active manual operation is deactivated and then blocked. Manual operation can no longer by activated by
the manual buttons.
Electromechanically-locked contacts
The output contacts (UP/DOWN) are interlocked electromechanically. This ensures that voltage can never
be present at both contacts simultaneously. Voltage at both contacts can lead to destruction of the drives.
Reversing time, pause between two movement actions
To ensure that the connected drive is not damaged by a sudden change in direction, the output contacts
are electrically disconnected for the duration of the programmed reversing time. Only then is the output
contact for the required direction of movement switched.
Important
The technical data of the appropriate drive manufacturer must be observed when programming the
reversing time (operation modes Control with/without slat adjustment)!
In the operation mode Ventilation flap, switch mode, a reversing time of 100 ms is predefined and
cannot be parameterized.
JRA/S | 2CDC 506 051 D0204 29