Notes On The Connections - SAFEasy SF2 Series Instruction Manual

Instruction Manual

4.1. Notes on the connections

For the correct functioning of the SAFEasy
following precautions regarding the electrical connections have to be
respected:
• Do not place connection cables in contact or near high-voltage
cables (e.g. motor power supplies, inverters, etc.). The correct
functioning of the safety device can be compromised by the presence
of strong electro-magnetic fields.
• Do not connect in the same multi-pole cable the OSSD wires of
different light curtains.
• The TEST 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
relevant button to activate the test.
• If TEST is connected to 0 Vdc, or unconnected at the system
powering, the light curtain enters in the BREAK condition (see
section 7 "Diagnostic functions").
• The TEST push-button must be located in such a way that the
operator can check the protected area during any Test and Reset
operation. (see section 6 "Reset mode").
• Class 3 does not allow the ground
connection of the two units and a
SELV/PELV power supply
compulsory.
• Class
1 states that the
connection and the symbol
connection of the two
compulsory (using the special screw –
supplied with the device – instead of
one of the 6 screws that lock the heads
of each bar) and a SELV/PELV power
supply is recommended.
19
SF2 Series
TM
safety light curtains, the
is
ground
for
units is
ground
connection