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: 42 / 174
Enabling the safety functions
The safety functions must first be globally enabled before they can be parameterized and used. After global
enabling, the individual safety alarms can be enabled or disabled independently of one another.
Set the parameter "Safety functions" on the "Shutter outputs safety" parameter page to "enabled".
The safety functions are globally enabled and the other parameters and the parameter page "Safety
times" become visible.
Set the parameters "Wind alarm 1", "Wind alarm 2", "Wind alarm 3", "Rain alarm" and "Frost alarm"
depending on functional requirements to "enabled". The "disabled" option deactivates the corresponding
alarm.
The necessary safety alarms are now enabled. The safety objects are visible and can be linked with
group addresses.
It should be noted that the channel-oriented assignment of shutter outputs to the safety alarms (on
parameter pages "Ax – safety"; x = number of output) is operational only after the corresponding alarm
has been enabled. Otherwise, an assignment is without function.
An update of the safety objects ("ON" to "ON" or "OFF" to "OFF") shows no reaction.
After failure of the supply voltage (bus and mains voltage failure) or after programming with the ETS, the
safety functions are always deactivated. If only the mains voltage or only the bus voltage fails, the object
states of the safety functions are not lost and the functions remain activated, if they were activated
before. In this case it should be noted, however, that the device executes the parameterized action
(parameter "Behaviour after bus or mains voltage return") when the bus or the mains voltage is restored.
After such action, the outputs are, however, safety-locked and cannot be operated via the bus anymore
unless the safety functions assigned are terminated.
Presetting the safety priorities
If several safety alarms are assigned to an output, it is important to preset the priority of the incoming safety
telegrams. An alarm with a higher priority overrides the alarms with the lower priorities. When a safety alarm
with the higher priority has ended, the safety alarm with the lower priority is executed on condition that it is
active.
The safety functions must have been globally enabled.
Arrange the "Priority of safety alarms" parameters on the "Sutter outputs safety" parameter page in the
required order of priority.
The three wind alarms have the same priority with respect to one another (logic OR). The last telegram
update to the wind alarm objects decides which of the wind alarms will be executed. The wind alarm is
completely deactivated for an assigned output only after all three objects are inactive ("0").