Publicité
S8-PR...T
Polarised retroreflex for transparents
S8-PR...W
Contrast sensor
INSTRUCTION MANUAL
CONTROLS
OUTPUT LED (yellow)
The yellow LED indicates the output status.
READY LED (green) (S8W)
The green LED ON indicates normal functioning.
POWER ON LED (green) (S8T)
The green LED ON indicates the powering status.
SET PUSH-BUTTON (S8W)
The acquisition procedure is activated by pressing the SET push-button.
The control obtained with the SET push-button can be made externally with
the REMOTE input.
DELAY TRIMMER (S8W)
The digital output's delay is selected/deselected by a monoturn trimmer.
SENSITIVITY TRIMMER (ADJ.) (S8T)
The sensitivity and thus the operating distance are adjusted by a monoturn
trimmer.
LIGHT/DARK TRIMMER (S8T)
The light/dark mode is selected by a monoturn trimmer.
Please refer to "SETTING" paragraph for the correct use procedures.
WARNING: the maximum mechanical rotation range of the trimmer is 240°.
Do not force over of the maximum and minimum positions.
INSTALLATION
The sensor can be positioned by means of the two
housing holes using two screws (M3x18 or longer,
0.8Nm maximum tightening torque) with washers.
Various orientable fixing brackets to ease the sensor
positioning are available (please refer to the accessories
listed in the general catalogue).
The operating distance is measured
from the front surface of the sensor
optics.
S8W - Mark detection on a reflective
surface is improved adjusting the
beam direction to 5° ... 20° from surface axis.
CONNECTIONS
M8 connector
S8W
S8T
Pig-tail with M12 connector
Power supply:
Ripple:
Consumption
(output current excluded):
PNP or NPN N.O.; 30 VDC max.
Outputs / Alarm output only for S8T:
Pull-down/up resistance = 47 K
Output current:
Output saturation voltage:
Response time:
Switching frequency:
blue ( 465 nm) / green (520 nm) / red (630 nm)
Emission type:
Spot dimension:
Operating distance (typical values):
Depth of field:
LIGHT/DARK selection:
Delay OFF 20msec selection:
Indicators:
OUTPUT LED (yellow) / READY LED (green)
Operating temperature:
Storage temperature:
Dielectric strength:
Insulating resistance:
Ambient light rejection:
Vibrations:
Shock resistance:
Housing material:
Lens material:
Mechanical protection:
Connections:
Weight:
S8W SETTING
ACQUISITION
Mark detection
The DARK/LIGHT mode is automatically
selected by the sensor.
Place mark in front of the sensor spot and
press SET until the green READY LED
turns off.
The sensor functions alternating red, green
and blue emissions.
Do not move the mark during this phase.
Background detection
Place background in front of the sensor spot
and press SET again.
The sensor functions alternating red, green
and blue emissions.
Do not move the background during this
phase.
If the READY LED turns permanently ON the acquisition was successful. If the
LED blinks slowly the acquisition failed due to insufficient contrast. Press SET
and the sensor returns to the previous setting. Repeat procedure from the
beginning.
DELAY SETTING
The delay extends the minimum output activation
to 20 ms allowing the slower interface systems to
detect also shorter pulses.
Delay activation
- Rotate trimmer in an anti-clockwise direction.
Delay deactivation
- Rotate trimmer in a clockwise direction.
TECHNICAL DATA
S8W
12 ... 30 VDC (Class 2 UL508)
(reverse polarity protected)
2 Vpp max.
30 mA max
PNP or NPN N.O.; 30 VDC max.
(short-circuit protection)
(short-circuit protection)
100 mA (overload protection)
2 V
50 s
10 kHz
with automatic selection
2
3x1 mm
9 mm
0.8 m (EG2); 1 m (EG1) on R2 reflector
2 mm
Automatic
Mono-turn trimmer
Mono-turn DELAY trimmer
OUTPUT LED (yellow) / READY LED (green)
-10 ... 55 °C
-20 ... 70 °C
: 1500 VAC 1 min. between electronics and housing
>20 M 500 Vdc between electronics and housing
according to EN 60947-5-2
0.5 mm amplitude, 10 ... 55 Hz frequency, for each axis (EN60068-2-6)
11 ms (30 G) 6 shocks for each axis (EN60068-2-27)
ABS
Window in glass; lens in PC
IP67
M8 4-pole connector / 150 mm 4 mm cable with M12 4-pole connector (pig-tail)
12 g. max. connector version / 50 g. pig-tail version
S8T SETTING
SENSITIVITY ADJUSTMENT
Alignment:
- Position and align the sensor and reflector
on opposite side at the desired distance.
- Rotate sensitivity adjustment trimmer (ADJ.)
to maximum point (clockwise direction).
- Move the sensor vertically and horizontally
to determine the powering on and powering
off points of the yellow LED (OUT) and fix
the sensor in the middle of these two points.
- To detect very small objects, reduce the
sensitivity using the specific trimmer (if
necessary).
Repeat
procedure
reducing
progressively the sensitivity to improve
alignment.
Control:
- Enter object laterally in the detection area
and check that the yellow LED turns ON (in
dark mode).
- remove object and check that the yellow
LED turns OFF immediately (in dark mode).
LIGHT/DARK MODE SETTING
Light mode setting
Rotate trimmer in an anti-clockwise direction to set
the LIGHT mode (output ON with the reflector).
Dark mode setting
Rotate trimmer in a clockwise direction to set the
DARK mode (output ON in presence of the object).
S8T
2.6
15 mA max
250 us
2 KHz
red (660 nm)
10
-
9.25
7
-
-
25
S8W – REMOTE input
The REMOTE signal carries-out acquisition functions without using the SET
push-button.
The REMOTE wire connected to +Vdc is equal to pressing the SET pus-
button, connected to GND or not connected is equal to not pressing the SET
push-button.
V
DC
ACQ.
REMOTE
GND
S8T – ALARM output
The alarm output is active (ON) when the received signal remains without
safety margin for 0.5 second (30% respect to output switching value).
The sensors are NOT safety devices, and so MUST NOT be used in the safety control of
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.
© 2008 - 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
retrieval system, or transmitted in any form or by any means, or for any purpose, without the express
written permission of Datalogic S.p.A. and/or its affiliates. Datalogic and the Datalogic logo are registered
trademarks of Datalogic S.p.A. in many countries, including the U.S.A. and the E.U. All other trademarks
and brands are property of their respective owners. Datalogic reserves the right to make modifications
and improvements without prior notification.
DIMENSIONS
11
PIG-TAIL
3.5
VERSION
Receiver
Emitter
Ø3.2 n°2
Ø4
M8x1
S8W
Ø14.2
S8T
mm
M12
OTHER FUNCTIONS
>1s
mark acquisition
background acquisition
the machines where installed.
826003725 Rev. H
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