14
EN
4. Connection and Installation to the Machine
4.1 Installation
There are three options for mounting the emitter and the receiver.
• Attachment with BEF-SET-33 (included)
• Attachment with BEF-SET-18 (accessory)
• Attachment with BEF-SET-36 (installation in safety column)
Mounting with the BEF-SET-33
First secure the mounting clamp to the Light Curtain with the screws.
The screws should remain accessible after mounting. In this way, the
Light Curtain can be adjusted at a later point in time.
The Light Curtain is then attached to the machine etc. with the BEF-
SET-33. Avoid excessively small (minimal protection against vibra-
tion) or large (possible damage to the retainer) tightening torques for the
mounting components.
The mounting screws and nuts are not included in the scope of delivery.
In order to assure flawless functioning of the light curtain, the two
matched components (emitter and
receiver) must be aligned to one another.
It is advisable to mount the light cur-
tain for initial start-up such that alignment can still be adjusted to an
adequate extent. wenglor offers acces-
sories which allow for easy adjustment.
The controls must be accessible for initial start-up and maintenance. These are located on the side from which the
beam is emitted (emitter), or the side at which the beam is received (receiver).
Space requirements for mounting and dismantling depend upon the type of utilized accessories.
The machine controls must be connected to the light curtain ‘s safety output either directly or via the PLC (Cat. 4; PL
e; SIL3). General safety regulations and all applicable standards and mechanical engineering directives must be ob-
served as well. Two-channel redundant wiring to the controls of the hazardous machine must be adhered to strictly.
24 V DC supply power must be fed to the light curtain from a PELV power pack.
