3.0 PRODUCT DESCRIPTION
3.1 Short description
CR0 light curtains are photoelectric devices built according to the IEC 60497-5-2 norms and they must not be considered as safety
devices. Therefore they must not be used to guarantee operators’ safety nor to protect users on dangerous machines. They must
rather be used to detect objects reducing or obscuring the intensity of light beams that returns from the reflector.
The housing is in aluminium painted in blue RAL5002, size 20x36mm, (20 mm refers to the front side). A groove on the back allows
connection with T-shaped components. The top side is in and the bottom side is in black PBT, the optical window is in PMMA.
Protection degree is IP67.
In all models of the series, CR0 have two LEDs indicators: Red and Green in combination, indicate the states of the sensor
(alignment, state optics and fault indication), they are arranged at the top of the curtain, the light is intense and diffused in all
directions, this ensures a great visibility in all conditions.
All models in the CR0 have an optic composed of a continuous array of 9x9mm lenses with a step of 10mm, CR0 have seven
lenses. The optical window has a height of 69mm; the total height of the curtain is 107mm.
Emitter and Receiver are alternate with the following sequence is: E1, R1, E2, R2, E3, R3, E4 with reference the cable side. This
allows to realize a continuous succession of six pairs of reflex elements; the emitted light is polarized and has a wave length of
617nm.
The working distance is 0.2...4.5m with reflector RL106Gand lower with smaller reflectors, the best detection capability is 6mm.
All models of CR0 series have a teach button (inductive teach could also be available) in the top of the curtain dedicated to the
activation of menu functions: two levels of Teach-in and Blanking.
The Teach_S(standard teach) select an excess gain equal to 2 times the threshold, the Teach_F (fine teach) select an excess gain
equal to 1.2 times the threshold; the latter should be used only if the system and the environment in which the product is used are
clean and with an high mechanical stability.
The sensor does not use automatic systems of signal tracking, but its repeatability is based on a sophisticated control of thermal drift.
The Blanking of the beams, allows gradually eliminate pairs of beams; the active couples (E+R) may range from a maximum of six to
a minimum of one.
This sensors has a standard output with M12 male flying connector (240 mm pigtail).
The CR0 models have four interface circuits which can be combined in different ways depending on the model and the number of
output cables:
a) Supply 15...30V
b) IO_Link output (C/Q), PNP/NPN/PUSH- PULL
c) Auxiliary output (Q): PNP/NPN/PUSH- PULL
d) Auxiliary input, output mode selection LIGHT/DARK (NC/NO) or more.
