EOS2 SAFETY LIGHT CURTAIN
INSTALLATION
Before installing the EOS2 safety system, check all the conditions listed below:
The level of protection of EOS2 (Type 2, SIL2, SILCL2, PLd) must be compatible with
the level of danger of the system to be protected.
The safety system is used only as a stopping device and not to control the machine.
The machine movement is actuated electrically.
All dangerous movements of the machine can be interrupted immediately. In
particular, the machine stopping times must be known and, if necessary, measured.
materials from The machine must not generate hazards due to projection or falling of
above; otherwise, additional mechanical guarding must be provided.
etected must be greater than or equal to the The smallest size object to be d
resolution of the selected model.
Knowing the shape and dimensions of the da
ngerous area, it is possible to calculate the
idth and height of the related access area :
w
e maximum working range and the height of the Compare these dimensions with th
protected area of the model used.
Before positioning the safety device, comply with the following general indications:
Check that the temperature of the environment in which the system is installed is
compatible with the operating temperature parameters indicated on the product label
and in the technical data.
Do not position the Emitter and the Receiver close to very bright or flashing sources
of light.
Particular operating conditions may affect the sensing level of photo-electric devices.
In environments characterised by fog, rain, fumes or dust, to always guarantee
correct operation of the appliance, it is advisable to apply suitable correction factors
Cf so as to maximum working ran cases: ge values. In these
where Pu
Pu = Pm x Cf
and Pm are, respectively, the working and maximum range expressed in
metres.
The recommende e indic
OPERATING CONDITIONS CORRECTI
d correction factors CF ar ated in the table below.
ON FACTOR Cf
Fog 0.25
Vapours 0.50
Dust 0.50
Dense fum 0.25 es
Table 1 – CF correction factors
n changes in If the device is installed in environments characterised by sudde
English
temperature, suitable precautions must be taken to prevent the formation of
condensation on the mirrors, which could impair detection capability.
8540738 • 2nd December 2009 • Rev.2 5
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