Shutter actuator 4gang 6A 230V manual
RMD
75314013
Technical
Documentation
© Gebr. Berker 2005
Version: 10.05.2005
Page: 9 / 17
(Subject to prior change)
75314013.doc
Part 7
Bus and mains voltage / programming procedure
Response in case of bus voltage failure:
The response in case of bus voltage failure is predefined by the "Response to bus voltage failure"
parameter on the "General" card. The following actions can be parameterized: shutter moving into upper
limit stop position ("Moving up"), shutter moving to lower limit stop position ("Moving down"), movements
in progress being stopped ("Stop") or no reaction taking place ("No reaction" / movements still in progress
will be accomplished). Manual control is possible depending on the "Manual control during bus voltage
failure" on the "Manual control" card.
Response to mains voltage failure:
The actuator needs a mains voltage supply for operation. In the event of mains voltage failure, all outputs
switch off (stop). Manual control is then no longer possible. Safety functions activated via the bus remain
active.
Response to bus and mains voltage failure:
As in a normal mains failure, all outputs switch off (stop). Manual control is then no longer possible. Safety
functions activated via the bus are rejected.
Response on return of bus voltage:
The response depends on whether mains voltage is present or not when the bus voltage returns.
If the mains is present on return of bus voltage, the reaction is fixed by the "Response on return of bus
voltage" parameter on the "General" card. The following actions can be parameterized: shutter moving to
upper limit position ("Moving up"), shutter moving to lower limit position ("Moving down"), movements in
progress being stopped ("Stop"). Manual control – if activated – will be terminated. In an unprogrammed
actuator, the reaction after bus voltage return is factory-adjusted to "Stop".
If there is no mains voltage on return of bus voltage, all output channels remain off (Stop). Bus
communication is, however, possible, i.e. the safety functions can be activated. Short- or long operation
commands are rejected.
A safety function – if activated – will be executed when the mains voltage returns later on. If no safety
function has been activated during the mains failure (bus voltage available), the actuator executes the
parameterized "Response on bus voltage return" when the mains is restored later on. Manual control is
not possible.
