Shutter actuator 4gang 6A 230V manual
RMD
75314013
Technical
Documentation
© Gebr. Berker 2005
Version: 10.05.2005
Page: 7 / 17
(Subject to prior change)
75314013.doc
Part 7
Change-over time:
To protect the motor drives against irreparable damage, a fixed break during each change of the moving
direction can be parameterized for each output channel. During the break, no moving direction is activated
(stop). The "Break during change of moving direction" parameter can be set for change-over interruptions
of 0.5 s, 1 s (default), 2 s and 5 s. The required parameter setting can be found in the technical
documentation of the drive motor installed.
The change-over time is taken into account also for bus voltage failures and the manual control mode.
In the unprogrammed state of the actuator, all output channels are preset for a change-over time of 1 s.
Moving time extension:
Due to their weight or to external physical influences (e.g. temperature, wind, etc.), shutters move more
slowly when travelling upwards.
During each upward movement (long operation (MOVE)), the shutter actuator therefore takes a fix moving
time extension into account. The extension is taken as a percentage of the moving time computed and is
adjusted to 3%.
Safety function
The shutter actuator has two safety functions with separate assignment to the shutter channels. The
safety functions can be activated or deactivated by separate objects. The priority of the objects can be
parameterized.
Safety reaction
The reaction of the assigned output channels at the beginning and at the end of a safety function can be
preset.
Response at the beginning of a safety function
The actuator moves the shutters alternatively into one of the limit stop position, if the response at safety is
parameterized for "Moving up" or "Moving down". With these settings, the shutters are locked up in the
limit position after the end of the safety movement. If the response at safety at the beginning of the safety
function is parameterized for "No reaction", no movement is started and the output channels are locked in
the actual position.
With respect to all other bus-controllable functions of the actuator, the safety function has the highest
priority. This means that all functions in progress for the outputs (e.g. step or move operations) will be
aborted and the safety reaction is executed. The safety function can be interrupted only by manual control
on the device itself.
Response at the end of a safety function
At the end of a safety function, the actuator immediately re-enables the output channels concerned when
the setting is "moving up" or "moving down" and approaches the corresponding limit stop positions. If the
response at the end of a safety function is parameterized for "No reaction", the corresponding outputs are
enabled without starting a new movement. If enabling by "No reaction" occurs during a safety movement
still in progress, the outputs are enabled without interrupting the movement.
