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Before connecting the photocells (or other devices) we advise you to select the type
of operation according to the movement zone to be protected.
Opening Safety Devices: They
operate only during the gate
opening movement and,
therefore, they are suitable for
protecting the zone between the
opening leaves and fixed
obstacles (walls, etc.) against
the risk of impact and crushing.
Closing Safety Devices: They
operate only during the gate
closing movement and,
therefore, are suitable for pro-
tecting the closing zone against
the risk of impact.
Opening/Closing Safety Devices: the operate during the gate opening and closing
movements and, therefore, they are suitable for protecting the opening and closing zones
against the risk of impact.
If one or more devices have the same function (opening or closing) they must be
connected to each other in series. Normally Closed contacts on the accessories
panel must be used.
Examples of common wiring layouts
(!