14
EN
7.1 Description of the safety functions
i
Soft-start / Soft-stop
The RolloTron Comfort DuoFern is equipped with a Soft-
start / Soft-stop function. Gentle starting and stopping
serves to protect the belt winder mechanics and the belt.
Obstacle detection
The movement of the belt is monitored. If the roller shut-
ters hit an obstacle in the DOWN (
t
t
) direction, the belt
will stop moving and the belt winder is switched off.
Once the system has switched off, it is no longer
possible to directly operate the drive in the same
direction.
◆
Run the belt winder back in the opposite direction
and remove any possible obstacle.
◆
Subsequently it is possible to operate the drive in the
original direction again.
There is a risk of injury if the obstacle detection is not
working.
◆
The belt must be wound on as evenly as possible to
ensure safe and correct functioning of the obstacle
detection function.
◆
Please ensure that the belt winds as straight and evenly
as possible into the device during its subsequent cycle
after the obstacle detection system has triggered.
Overload cut-off
The RolloTron Comfort DuoFern is equipped with an
overload cut-off system.
If the drive jams in the UP (
▲
▲
) cycle (for example, due to
ice), the belt winder will also switch off.
◆
Once the cause for the overload has been rectified,
the drive will be fully operational in both directions.