S8-PR
S8-MR
S8-PR/MR…M53
Background suppression for shiny objects
INSTRUCTION MANUAL
CONTROLS
OUTPUT LED (yellow)
The yellow LED ON indicates the output status.
POWER ON LED (green)
The green LED ON indicates the powering status and the laser emission
presence.
DISTANCE ADJUSTMENT TRIMMER (ADJ.)
The multiturn trimmer with clutch (8 turns) adjusts the suppression distance
through the mechanical variation of the optic triangulation angle.
The operating distance increases rotating the trimmer in a clockwise direction.
Please refer to the “SETTING” paragraph for the correct procedure.
TEACH-IN PUSH-BUTTON
The push-button allows acquiring the background.
Please refer to the “SETTING” paragraph for the correct procedure.
INSTALLATION
The sensor can be positioned by means of the two housing holes using two
screws (M3x18 or longer, 0.8 Nm maximum tightening torque)
with washers.
Several fixing brackets are available which can be oriented in
various positions to ease the sensor installation, (please refer
to the accessories listed in the general catalogue).
The operating distance is measured from the front
surface of the sensor optics.
In the presence of moving backgrounds
like conveyor belts, especially having a
dark or shiny surface, the best object
detection performance can be obtained
by mounting the sensor at an angle
(max 30°) with respect to the horizontal
plane, as shown in the figure.
CONNECTIONS
M8 CONNECTOR
TECHNICAL DATA
S8-PR…M53 S8-MR…M53
Power supply:
12 … 30 VDC Class 2 (Type 1 for S8-MR) UL508
Ripple:
2 Vpp max.
Consumption
(output current excluded):
30 mA max
Outputs:
PNP; 30 Vdc max. (short-circuit protection)
Output current:
100 mA (overload protection)
Output saturation voltage:
2 V
Response time:
2 ms
Switching frequency:
250 Hz
Emission type:
Red (660 nm)
Operating distance (typical values):
100...300 mm
Setting:
8-turns distance adjustment trimmer – Background suppression push-button
LIGHT/DARK selection:
white wire
Indicators:
OUTPUT LED (YELLOW) / POWER ON LED (GREEN)
Operating temperature:
-10 … 55 °C
Storage temperature:
-20 … 70 °C
Dielectric strength:
: 1500 VAC 1 min between electronic parts and housing
Insulating resistance:
>20 M
500 VDC between electronic parts and housing
Ambient light rejection:
according to EN 60947-5-2
Vibrations:
0.5 mm amplitude, 10 … 55 Hz frequency, for every axis (EN60068-2-6)
Shock resistance:
11 ms (30 G) 6 shocks per every axis (EN60068-2-27)
Housing material:
ABS
Lens material:
PMMA window; PC lens
Mechanical protection:
IP67
Connections:
M8 4-pole connector
Weight:
12 g. max. (S8-PR) / 70 g. max (S8-MR)
At
Ex 2014/34/EU:
II 3G EX nA II T6 ;
II 3D EX tD A22 IP67 T85°C
SETTING
LIGHT/DARK MODE SETTING
LIGHT MODE setting
Connect the LIGHT/DARK signal (white wire) to 0V or leave unconnected.
The output is ON with the object in the sensing area and OFF on the
background.
DARK MODE setting
Connect the LIGHT/DARK signal (white wire) to +VDC.
The output is OFF with the object in the sensing area and ON on the
background.
BACKGROUND ACQUISITION PROCEDURE
The S8-PH…M53 sensor allows detection of shiny objects without the false commutations typical of traditional background suppression sensors. To function
correctly it is necessary to perform the Background Acquisition Procedure at power up as described below.
1.
Activation Background Acquisition Procedure: press TEACH-IN push-button for 1 sec until OUT LED (yellow) turns OFF.
The output (black wire) turns OFF and the yellow LED signals the commutations of a standard background suppressor.
2.
Background suppression from the detection area (CUT-OFF): position the sensor in front of the background at a distance within its Operating Range.
Turn the Distance Adjustment Trimmer in a clockwise direction until OUT LED (yellow) turns ON, then turn in a counter clockwise direction to turn
OFF yellow OUT LED (Background
NOT
Detected Condition).
3.
Background Acquisition: press TEACH-IN push-button for 1 sec. The sensor acquire the background. Successful Background Acquisition is indicated
by a short blink of the laser emitter. If the yellow LED blinks, the background acquisition procedure has failed.
Press TEACH-IN push-button in the counter-clockwise direction and repeat the procedure from step 2.
Hysteresis setting
After background acquisition detection, the sensor is ready to detect any object that passes through the detection area. To obtain the best working for the
application it is possible select 4 hysteresis levels. During the hysteresis setting the yellow OUT LED blinks with different frequency to indicate the hysteresis
level and the digital output indicate the sensor’s commutation.
1.
Position the sensor in front of the background
2.
Press TEACH-IN push-button for 3 sec until OUT LED (yellow) turns ON. The yellow OUT LED start to blink with different frequency depending from
the hysteresis level:
OUT LED BLINKING
HYSTERESIS
BACKGROUND FEATURE
SLOW
LOW
Stable background and optimum clear and shiny objects reading
MIDDLE SLOW
MIDDLE LOW
Little variable background and good clear and shiny objects reading
MIDDLE FAST
MIDDLE HIGH
Moving background and good clear and shiny objects reading
FAST
HIGH
Moving and color variable background and reading of almost all clear and shiny objects
3.
Verify the there are not false commutation on the background through digital output, otherwise pass on upper hysteresis level pressing the push-button
for 1 sec.
4.
Press the TEACH-IN push-button for 3 sec (OUT LED turns OFF and then turns ON) to confirm the hysteresis level. Successful hysteresis setting is
indicated by a short blink of the laser emitter.
5.
Verify the clear and shiny objects reading.
DIMENSIONS
ADDITIONAL FUNCTIONS
AUTO-ADAPTIVE FUNCTION
During normal operation, a commutation threshold auto-adjustment function is
active. At intervals of 1 minute from the last acquisition, the sensor checks if
the background signal has changed significantly, and if necessary, updates
the commutation value. This function compensates for slow variations of the
background caused for example by surface deterioration over time, and
therefore avoids repeating the manual background acquisition procedure
periodically.
The sensors are NOT safety devices, and so MUST NOT be used in the safety control of
the machines where installed.
Datalogic S.r.l.
Via S. Vitalino 13 - 40012 Calderara di Reno - Italy
Tel: +39 051 3147011 - Fax: +39 051 3147205 - www.datalogic.com
Helpful links at www.datalogic.com:
Contact Us,
Terms and Conditions,
Support
.
The warranty period for this product is 36 months. See General Terms and Conditions of Sales for
further details.
Under current Italian and European laws, Datalogic is not obliged to take care of product
disposal at the end of its life. Datalogic recommends disposing of the product in compliance with
local laws or contacting authorised waste collection centres.
© 2012 - 2017 Datalogic S.p.A. and/or its affiliates
ALL RIGHTS RESERVED.
Without limiting the
rights under copyright, no part of this documentation may be reproduced, stored in or introduced into a
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written permission of Datalogic S.p.A. and/or its affiliates. Datalogic and the Datalogic logo are registered
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and improvements without prior notification.
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