Shutter actuator 4gang 6A 230V manual
RMD
75314013
Technical
Documentation
© Gebr. Berker 2005
Version: 10.05.2005
Page: 8 / 17
(Subject to prior change)
75314013.doc
Part 7
Safety assignment
Each output channel can be assigned separately to safety functions 1 or 2 or alternatively to both safety
functions. If a channel is intended to respond to both functions, the safety objects resp. the functions are
combined by a logic OR. This means that the corresponding output channel goes into the safety lock state
as soon as one of the objects is active. In this case, the channel will be re-enabled only if both objects are
deactivated. Only then can a position follow-up be performed at the end of the safety lock of a channel
assigned to both functions!
If the setting is "No assignment", the safety function for this output channel is deactivated.
Manual control and safety function
Compared to all other bus-controllable function of the actuator, the safety functions have the highest
priority. The safety functions can be interrupted only by manual control on the device itself.
After a manual control, the actuator automatically reactivates the safety function(s) for the outputs
assigned, if the safety objects had been activated before or during a manual control. The parameterized
"Response at the beginning of the safety function" is then re-executed.
If a safety function was deactivated during manual control, (object update "Not active"), the parameterized
"Response at the beginning of the safety function" is re-executed after the end of manual control. It is
assumed that the safety function was activated before or during manual control.
Cyclical monitoring
Both safety objects can be cyclically monitored for the reception of telegrams.
When monitoring is enabled, the actuator expects a telegram update to both safety objects. If no
telegrams are received during the monitoring time, the safety function corresponding to the missing
telegram will be activated.
The safety function can be deactivated again when a safety unlock command is received.
The cycle time of the transmitters should be shorter than the monitoring time parameterized in the shutter
actuator in order to ensure that at least one telegram can be received during the monitoring time.
Safety function information:
•
The time needed by an output for a safety movement into the limit stop positions is determined by the
"Long operation (MOVE)" parameter on the "Output X" cards. For this reason, the safety movement can
be as long as the parameterized extended moving time (downward movement: parameterized moving
time + 20 %; upward movement: parameterized moving time + 20 % + fixed moving time extension of
3 %) or also 'infinitely' long. Safety movements cannot be retriggered.
•
After return of bus voltage, the safety functions are always deactivated. In the event of a safety lock with
object value "0", an object update ("0" telegram) must first be made after bus voltage return before the
safety function is activated.
•
An object update of the safety objects ("ON" after "ON" resp. "OFF" after "OFF") yields no reaction.
•
Move-step or step-step commands during an active safety function will be rejected.