S8-MR…T
Polarised retroreflex for transparents with threshold
auto-adjustment
S8-MR…W
Contrast sensor
INSTRUCTION MANUAL
CONTROLS
OUTPUT LED (yellow)
The yellow LED indicates the output status.
READY LED (green)
The green LED ON indicates normal functioning.
SET PUSH-BUTTON (S8…W03/T53)
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 (S8-W03)
The digital output’s delay is selected/deselected by a monoturn trimmer.
LIGHT/DARK TRIMMER (S8-T53)
The sensitivity and thus the operating distance are adjusted by a monoturn
trimmer.
Please refer to the “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
DIMENSIONS
Ricevitore
Emettitore
28
.2
5
27
.5
11.8
M8x1
15
3.3
0.
9
51
.4
5
10.7
n°2
M
3
3.
55
20
42
.8
28
7
11.5
mm
TECHNICAL DATA
S8-W03 S8-W00 S8-T53 S8-T50
Power supply:
12 … 30 VDC
Ripple:
2 Vpp max.
Consumption
(output current excluded):
30 mA max
Outputs:
PNP or NPN N.O.; 30 VDC max (short-circuit protection)
Pull-down/up resistance = 47 K
Output current:
100 mA (overload protection)
Output saturation voltage:
2 V
Response time:
50
s
250 us
Switching frequency:
10 kHz
2KHz
Emission type:
BLUE ( 465 nm) / GREEN (520 nm) / RED (630 nm)
with automatic selection
RED (660 nm)
Minimum spot dimension:
3x1 mm
2
-
Operating distance (typical values):
9 mm
2 m (EG2) on R2 reflector
Depth of field:
2 mm
-
Settings:
SET push-button
-
SET push-button
-
DARK/LIGHT selection:
automatic
Mono-turn trimmer
Automatic
Delay OFF 20msec selection:
Mono-turn trimmer
Automatic
-
Indicators:
OUTPUT LED (yellow) / READY LED (green)
Operating temperature:
-10 … 55 °C
Storage temperature:
-20 … 70 °C
Dielectric strength:
: 1500 VAC 1 min. between electronics and housing
Insulating resistance:
>20 M
500 VDC between electronics and housing
Ambient light rejection:
according to EN 60947-5-2
Vibrations:
0.5 mm amplitude, 10 … 55 Hz frequency, for each axis (EN60068-2-6)
AtEx 2014/34/EU:
II 3G EX nA II T6 ;
II 3D EX tD A22 IP67 T85°C
Shock resistance:
11 ms (30 G) 6 shocks for each axis (EN60068-2-27)
Housing material:
INOX AISI 316L
Lens material:
Window in glass or PMMA; lens in PC
Mechanical protection:
IP67; IP69K (TYPE 1 ENCLOSURE)
Connections:
M8 4-pole connector
Weight:
70 g. max.
S8-W03 SETTINGS
ACQUISITION
S8-T53 SETTINGS
SENSITIVITY ADJUSTMENT
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.
Alignment and Sensitivity Adjustment
- Positioning and align the sensor and the
reflector on opposite side at the desired
distance.
- 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.
- Press SET push-button until the green READY
LED turns off. The sensor adjusts the
sensitivity. If the READY LED turns
permanently ON the acquisition was
successful. If the LED blinks the acquisition
failed due to insufficient contrast. Press SET
and the sensor returns to the previous setting.
Verify alignment between sensor and reflector
and the operative distance before repeat
procedure from the beginning.
If the signal that returns from the reflector is too
high (saturated), the sensor sets the sensitivity
to minimum and functions normally, however
signalling this condition by the READY LED
blinking slowly. In this case the sensor may not
detect some transparent objects. You can
press SET for 1s to make the READY LED
stop blinking.
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).
DELAY OFF SETTING
The DELAY OFF extends the minimum output
activation to 20 ms allowing the slower interface
systems to detect also shorter pulses.
Delay Off Activation
Rotate trimmer fully counter-clockwise.
Delay Off Deactivation
Rotate trimmer fully clockwise.
LIGHT/DARK MODE SETTING
Light Mode Setting
Rotate trimmer fully counter-clockwise to set the
LIGHT mode (output ON with the reflector).
Dark Mode Setting
Rotate trimmer fully clockwise to set the DARK
mode (output ON in presence of the object).
ADDITIONAL FUNCTIONS
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 push-button;
connected to GND or not connected is equal to not pressing the SET push-button.
S8-W:
In the W00 version, the REMOTE input is also used for:
- Activation/deactivation of Delay Off (S8-W00)
The current setting of the Delay Off can be changed by connecting the REMOTE
wire to +Vdc for at least 2sec (until the yellow LED blinks). The yellow LED blinks
slowly if the Delay Off is active, blinks quickly if deactivated.
S8-T:
In the T50 version, the REMOTE input is also used for:
- Acquisition in LIGHT mode (S8-T50)
To activate this function, the REMOTE wire must be connected to +Vdc for at least
2sec (until the yellow LED blinks).
ADDITIONAL FUNCTIONS (S8-T53)
KEYLOCK FUNCTION (keyboard lock)
The KEYLOCK function (keyboard lock) allows to deactivate the keyboard
avoiding accidental changes in the sensor setting.
If at sensor powering the REMOTE wire is connected to +Vdc for at least 1 s., the
keyboard lock function is activated and the push-buttons are no longer active.
To deactivate the keyboard lock, the sensor must be turned off and repowered
with the REMOTE wire not connected or connected to GND.
THRESHOLD AUTO-ADJUSTMENT FUNCTION
The sensor provides threshold auto-adjustment function. If the received signal
decreases/increases due to dirty optical lens or reflector, or for cleaning, the
sensor adjusts automatically the commutation threshold to avoid continuous
cleaning of optical parts (after 1 minute of low/high signal). If the received signal is
too low to be adjusted by the sensor, the output turns on and it is necessary to
clean the optical parts.
At sensor powering, if the received signal is a lot higher than the switching
threshold (e.g. after reflector cleaning), the sensor after 1s automatically adjusts
the switching threshold.
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:
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.
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.
© 2011 - 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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and improvements without prior notification.
826007005 Rev. E
Receiver
Emitter
SET PUSH-BUTTON
(S8…W03/T53)
TRIMMER
(S8…W03/T53)
Mark acquisition
Vdc
REMOTE
GND
Background acquisition
ACQ.
(S8-W)
>1s
slow blinking => Delay OFF activated
quick blinking => Delay OFF deactivated
Vdc
REMOTE
GND
Delay Off
(S8-W00)
>2s
Reflector acquisition
Vdc
REMOTE
GND
LIGHT ACQ.
(S8-T50)
>2s
Reflector acquisition
Vdc
REMOTE
GND
ACQ.
(S8-T)
>1s
