Datalogic TL46-WLF Instruction Manual

TL46-WLF

Contrast sensor

INSTRUCTION MANUAL

CONTROLS

OUT LED (yellow)

The yellow LED indicates the output status.

DISPLAY (green 4-digit display)

During normal functioning, the display indicates a value
relative to the light quantity diffused by the target.

READY LED (RDY)

The green READY LED ON indicates a normal operating
condition where the received signal has a safety margin
respect to the output switching value: stability condition.

DELAY LED

The green DELAY LED ON indicates the timing activation on the digital
output.

KEYLOCK LED

The green KEYLOCK LED ON indicates the active keyboard status.

(white), (red), and (green) PUSH-BUTTONS

See the “SETTING” paragraph for the correct adjustment phase indications.

INSTALLATION

The sensor can be positioned by means the two Ø3.5mm housing’s holes
using or threaded M5 holes with 6mm max. depth.
Warning: the use of excessively long screws can damage the product.

The connector can be oriented at five different positions by rotating the block.
The position chosen is guaranteed by a mechanical blocking system.
The rotation can be carried-out even after sensor installation as the connector
block is completely self-contained inside the housing.

The operating distance is measured starting from
the lens front face.
The reading direction can be changed inverting
the cap and lens.
Mark detection on a reflective surface is
improved adjusting the beam direction to 5° …
20° from surface axis.

CONNECTIONS

DIMENSIONS

TECHNICAL DATA

Power supply: 10…30 Vdc limit values
Ripple: 2 Vpp max.
Current consumption
(output current excluded):

35 mA max. @ 24 Vdc

Output:

1 selectable PNP/NPN output

30 Vdc max. (short-circuit protection)

default PNP configuration
Output current: 100 mA max.
Output saturation voltage:

 2 V

Response time:

16 s

Switching frequency: 30 kHz
Indicators:

4-digit display (GREEN) / OUT LED (YELLOW) /
READY LED (GREEN) / DELAY LED (GREEN) /

KEYLOCK LED (GREEN)
Push-buttons: push-buttons : -, SET, +

Delay

0…100 ms programmed

default configuration without delay

Dark/light selection:

Automatic in the target/background detection

selectable via wire in the dynamic detection
Operating temperature: -10 … 55 °C
Storage temperature: -20 … 70 °C
Electric shock protection:

double insulation
Operating distance: 9 mm
Depth of field:

 3 mm

Minimum spot dimension: 1.5x5 mm
Emission type:

blue ( 465 nm) / green (520 nm) / red (630 nm)

with automatic selection

Ambient light rejection: according to EN 60947-5-2
Vibrations:

0.5 mm amplitude, 10 … 55 Hz frequency,
for each axis (EN60068-2-6)

Shock resistance: 11 ms (30 G) 6 shocks for each axis (EN60068-2-27)
Housing material: Aluminium
Lens material:

Glass (

*)

Mechanical protection: IP67
Connections: M12 5-pole connector
Weight: 170g. max.

(*) It’s available on request, PMMA plastic lens with 9mm focus.

SETTING

KEYLOCK FUNCTION (PATENT-COVERED)

The KEYLOCK function deactivates the keyboard avoiding any accidental
changes in sensor setting.
At sensor powering, the keyboard is blocked (KEYLOCK LED OFF).
The

push-button has to be pressed for 5 sec. until the KEYLOCK LED
turns ON. The keyboard is blocked automatically if not used for 2 minutes.
The keyboard has to be unlocked to proceed with sensor setting.

DETECTION

(MARK-BACKGROUND)

- Position mark in front of the sens

or light spot

and press the

push-button until the ‘SEt1’

text appears.
The sensor detects the mark alternating the

red, green and blue emissions.
Avoid mark movements until the ‘SEt2’ text
appears and the OUT LED blinking.

- Position the background in front of the sensor light spot and press the
push-button again. The sensor de

tects the background and automatically
selects the best emission to detect the
contrast.
Avoid background movements during this
phase.

The DARK/LIGHT operating mode is
automatically selected by the sensor.
Dark mark - light background  dark mode;
light mark - dark background  light mode.

If the detection has been successful, the sensor
returns to nor

mal functioning. If it fails due to

insufficient

contrast, the ‘FAIL’ test blinks on the

display. Press the

push-button and the

sensor returns to the previous setting.
Repeat the procedure from the beginning.

DYNAMIC SE

TTING

Use the dynamic setting to detect moving target. The sensor sets
automatically the threshold value during target movement. The DARK/LIGHT
mode has to be previously set. To select the light mode connect the
DARK/LIGHT signal (white wire) to 0V or leave unconnected. To select the
dark mode connect the DARK/LIGHT signal to the power supply.

- Position the sensor spot in front of
the target to detect. Press

until

the ‘dYn’ text blinks (4sec) and keep

it pressed. The sensor detects the
mark and automatically selects the
best emission to detect the contrast.

- To end the dynamic detection
procedure release the

push-

button.

If the detection has been successful,
the sensor re

turns to normal
functioning. If it fails due to insufficient
contrast, the ‘Lo’ test blinks on the display. Press the

push-button to
repeat procedure until releasing the button (the ‘dYn’ text blinks on the
display). The sensor returns to the previous setting by pressing

or .

SWITCHING THRESHOLD SETTING

The sensor switching threshold can be adjusted in this manner.
The ‘AdJ’ text appears pressing

on the display. Releasing the push-

button, the threshold value blinks.

The switching thr

eshold is increased or reduced by pressing

or .

Press

to save the new threshold value.

HYSTERESIS SETTING

The sensor hysteresis level is adjusted.
The ‘HYSt’ text appears pressing green

on the display.

Releasing the pu

sh-button the p

r

eviously set value blinks.

HIGH HYSTERESIS

NORMAL HYSTERESIS

LOW HYSTERESIS

The level switches by pressing or .
Press

to save the new hysteresis value.

OUTPUT OVERLOAD

The overload of the digital output is signalled by the ‘_SC_’ text on the
display. The sensor return to normal working when the overload condition
disappears.

PARAMETER SETTING

Some parameters can be changed entering in the menu: DELAY ON, DELAY
OFF, PNP/NPN switching output, display orientation and powering on/off of
the display.
Press

and contemporarily until the ‘Menu’ text appears.

Releasing the push-button, the firs

t Delay ON parameter appears.

The parameter list is visualised by pressing

and :

DELAY

ON setting

The DELAY ON represents the output delay activation after the reference
mark has entered in the detection area. The delay avoids the detection of
events that occur rapidly. An example can be a mark with shaded colours
(light-dark-light) that can be detected twice.

Select “dLOn” in the paramet

er menu to set the DELAY ON function.

The parameter programming is accessed by pressing

.

The previously set delay value appears on the display.

Pressing or the delay value is increased or decreased by one step of
1 ms until a maximum delay of 100ms. Keeping press

or the delay
value is increased or decreased by incremental step. The setting of a delay
different from zero is signalled by the DELAY LED on. Press

to confirm

the value and return to the parameter menu.

DELAY OFF setting

The DELAY OFF represents the output delay deactivation after the reference
target has left the detection area.
The delay extends the output activation allowing slower system interfacing
with sensors to detect shorter pulses.

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Select “dLOF” from the parameter menu to set DELAY OFF function.
The parameter programming is accessed by pressing

.

The previously set delay value appears on the display.

Pressing

or the delay value is increased or decreased by one step of

1 ms until a maximum delay of 100ms. Keeping press

or the delay
value is increased or decreased by incremental step. The setting of a delay
different from zero is signalled by the DELAY LED on. Press

to confirm

the value and return to the parameter menu.

PNP/NPN output setting

The digital output can be configured as PNP or NPN.
Select ‘_PnP’ or ‘_nPn’ in the parameter menu to switch the output.

The previously s

et output switches by pressing

.

UP/DOWN DISPLAY setting

The selection of the UP/DOWN display sets the reading direction on the
display.
Select “dSUP” or “dSdn” in the parameter menu to set the UP or DOWN
direction.

Pr

ess

to switch the reading direction previously set.

ON/OFF DISPLAY setting

Turn off the display during normally working to save power consumption.
Setting the OFF mode, when the sensor is functioning normally, the display is
OFF. It turns on for 5s after a keyboard command. Select “dSOn” or “dSOF”
in the parameter menu to set the display ON or OFF.

Pr

ess

to switch the display mode previously set.

RESET of default parameters

Select “rSEt” in the parameter menu to reset the default parameters.

The “rSEt” te

xt blinks when pressing

.
Releasing the push-button the sensor returns to normal functioning.
The default reset parameters are:

PARAME

TER DISPLAY DESCRIPTION

Emission

________

Green

DARK/LIGHT mode

________

Light

Threshold

2050

Hysteresis

Medium (Normal)

Delay ON and OFF

Deactivated

Digital output

PNP output

Display

Display UP ON

NOTE: if the pa

rameters are reset before turning the sensor off, when
repowered the “rSEt” text blinks on the display for 3s before returning
to normal visualisation.

Saving parameter set - “SAVE”

Select “SAVE” to save the parameter setting

The parameters are saved pr

essing

and releasing it the display returns to

normal visualisation.

NOTE: Set the data, the operator exits from the menu using the “SAVE”
or “RESET” function. If these operations are not carried-out 30s after
the last setting, the sensor returns to normal mode saving the
parameters changed.

ACCESSORY FUNCTIONS

REMOTE INPUT

The REMOTE signals carries-out the acquisition functions without using the

push-button.

The REMOTE wire connected to +Vdc is equal to pressing the

push­button. Whereas, if the REMOTE wire is connected to GND or not connected
it is equal to not pressing the

push-button.

REMOTE

PUSH-BUTTON

0V

NOT PRESSED

+Vdc

PRESSED

- The duration of the REMOTE wire connection to +Vdc determ

ines the

acquisition type:

DARK/LIGHT input

The DARK/LIGHT signal allows the operat

or to select the DARK/LIGHT
operating mode for dynamic detection.
In the LIGHT mode the output is active with light marks on dark backgrounds,
in the DARK mode the output is active with dark marks on light backgrounds.
The connection of the DARK/LIGHT wire to Vdc sets the DARK mode.
If connected to 0V or not connected set the LIGHT mode.

DARK/LIGH

T

MODE

0V

LIGHT

+Vdc

DARK

EX-II-3DG IP67

T6

Temperature class:

T6 (<85°C)
Max. Power consumption 1000 mW at 30 Vdc
Max. Internal capacitance100 nF
Internal inductance: negligible

DECLARATION OF CONFORMITY

We DATALOGIC AUTOMATION declare under our sole responsibility that these products are conform
to the 2004/108/CE and successive amendments.

WARRANTY
DATALOGIC AUTOMATION warrants its products to be free from defects.
DATALOGIC AUTOMATION will repair or replace, free of charge, any product found to be defective
during the warranty period of 36 months from the manufacturing date.
This warranty does not cover damage or liability deriving from the improper application of DATALOGIC
AUTOMATION products.

DATALOGIC AUTOMATION cares for the environment: 100% recycled paper.
DATALOGIC AUTOMATION reserves the right to make modifications and im provements without prior notification.

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.

826003103 Rev.C © Copyright Datalogic 2007-2012

DYNAMIC

DET.

Mark detection

Vcc

REMOTE

GND

>

Background detection

REMOTE

GND

4s

Vcc

Dynamic detection

(begin) start

STATIC

DET.

Dynamic detection

end

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