Elsner KNX S1-B2 230 V, Установка и настройка

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48 Parameter setting
Actuators KNX S4-B10, KNX S2-B6 and KNX S1-B2 230 V
Status: 18.04.2017 • Technical changes and errors excepted.
Before the drive mechanism of the master actuator is moved, the slave actuator recei-
ves the command to move its drive mechanism to the safe position. As a consequence,
the slave remains in safe position or it moves back if it is not within the safe range.
The master actuator knows from the communication object „Slave zero position sta-
tus” whether the drive mechanism connected to the slave actuator is already in a safe
position (then the master moves immediately) or not (then the master waits). Only if
the master actuator is informed that the slave drive mechanism is in a safe position, it
moves its drive mechanism beyond its own safe position.
Example:
The ventilation with the window shall take priority over the shading with the awning.
Therefore, the window is parameterised as master, the awning as slave. Both are pro-
vided with a zero position sensor which reports whether the drive mechanism is in a
safe position or not.
The awning is now extended and the window shall be opened. The window knows the
status of the awning (“not safe position”) and therefore submits a master command to
the awning. This is the signal for the awning, to retract a little bit. As soon as the
awning has reached a safe position, there is an according feedback signal of the zero
position sensor of the awning. Only now the window opens.
Master and slave regularly exchange their positions (“safe“ or
“not safe”). By means of the monitoring period, you may adjust
the frequency of information retrieval. The selected period
should be shorter than the period which the monitored drive mecha-
nism needs to travel from the limit of the safe range (last reported
safe position) to a position where there is risk of collision.
If the drive mechanism does not receive a master/slave or zero position object, it mo-
ves to the safe position. The same holds true for a bus voltage breakdown or for a mal-
function message from the zero position sensor (is valid for the parameterisation as
master and as slave).
Without movement range limitation:
Use movement range limit no
Behaviour following a failure of the bus
power supply • no action
• Stop
• Up command (or On/Down)
• Down command (or Off/Up)
Behaviour on bus voltage restoration and
after programming • no action
• Up command (or On/Down)
• Down command (or Off/Up)