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Switch/shutter actuator 8/4gang 16A RMD
75318003
Switch/shutter actuator 16/8gang 16A
RMD
75310002
Technical
Documentation
© Berker GmbH & Co KG 2007
Version: 04.04.2007
Part 5
(Subject to prior change)
75310002.doc
Seite: 88 / 174
Presetting an 'invalid position' feedback
The feedback for an invalid position can be enabled and programmed independently for each output. When
feedback is enabled, the ETS adapts the parameter texts depending on the preset operating mode ("Invalid
blind position feedback", "Invalid shutter/awning position feedback" or "Invalid venting louver position
feedback").
The status feedback can be used as an active signalling object or as a passive status object. As an active
signalling object, the status feedback information is transmitted to the bus whenever a position value
changes. As a passive status object, there is no telegram transmission after a change. In this case, the
object value must be read out. The ETS automatically sets the object communication flags required for
proper functioning.
If the object is an actively transmitting signalling object, the feedback telegram can be transmitted after bus
voltage return with a time delay to reduce the bus load, with the delay being preset globally for all outputs in
common (cf. "Delay after bus voltage return").
The feedback functions of an output must be enabled on parameter page "Ax – Enabled functions" (x =
number of output). Only then are the parameters for the feedback functions visible.
Set the parameter "Invalid blind position feedback", "Invalid shutter/awning position feedback" or "invalid
venting louver position feedback" on parameter page "Ax – Feedbacks" to "feedback object is active
signalling object"
The feedback object is enabled. A telegram is transmitted as soon as there is a change (e.g. after ETS
programming, after switch-on of the supply voltage or after a reference travel).
Set the parameter "Invalid blind position feedback", "Invalid shutter/awning position feedback" or "invalid
venting louver position feedback" on parameter page "Ax – Feedbacks" to "feedback object is passive
status object".
The feedback object is enabled. A telegram will be transmitted in response only if the feedback object is
read out by the bus.
The feedback function must be preset as actively transmitting function.
If a time delay after bus voltage return should be necessary, the parameter "Time delay for feedback
after bus voltage return" on parameter page "Ax – Feedbacks" must be set to "yes".
An invalid position reported back with a time delay after bus voltage return. After the end of the time
delay, the object value state last adjusted will be transmitted to the bus. No feedback telegram will be
transmitted during a running delay. This is also the case if a position value becomes known, for instance,
after a reference travel.
Automatic transmission after bus voltage return will take place only if an internal change of the object
state has occurred (caused, for instance, by a reference travel during manual control).