SE4-PLUS Series
Instruction Manual
25
4.5. Notes on the connections
For the correct functioning of the
SAFE
asy
TM
safety light curtains
of the SE4-PLUS
series, the following precautions regarding the
electrical connections have to be respected:
Use only shielded cables for the connection of the two units.
The light curtain has been developed to offer an adequate
immunity level against disturbances in the most critical working
conditions.
It is possible to connect to ground the device housing using the
mechanical part supplied for ground connection (refer to
configuration illustrated in Fig.13).
Fig. 13
Do not place connection cables in contact or near high-voltage
cables (e.g. motor power supplies, inverters, etc.);
Do not connect in the same multi-pole cable the OSSD wires of
different light curtains;
The TEST/START wire must be connected through a N.C.
button to the supply voltage of the ESPE. A daily manual test is
necessary to verify the correct functioning of the safety light
curtain. Press the specific button to activate the test.
The TEST/START button must be located in such a way that the
operator can check the protected area during any Test, Override
and Reset operation
. (see section 6 “Functioning mode”).