SICK WLL180T User Manual
WLL180T
Sensor Confi guration for Individual Applications
MANUAL
1-point Teach-in
Teach-in – quick and easy for standard
applications.
2-point Teach-in
Exact switching threshold adjustment
at the object and of the environment.
Ideal for applications with small system
reserves.
Auto Teach-in
Fully automatic switching threshold adjustment of moving objects. Even falling
or tiny objects are reliably detected.
Zone Teach-in
This so-called window technology learns
the object within a defi nable bandwidth
of the switching threshold. Ideal for the
detection of marks, or simultaneous
foreground and background suppression.
Teach-in of transparent objects
Teach-in with minimum sensitivity, reliably detecting glass, fi lms or small
objects.
Universal or individual –
application solutions.
Fast and reliable programming, menu driven and at the push
of a button: sensor properties and parameters are individually
programmed directly on the sensor.
Teach-in or manual adjustment? You decide!
Teach-in
2 s
–
+
Application specific configuration
–
+
2 s
1.1 1-point Teach-in
1.2 2-point Teach-in
1.3 Auto Teach-in
1.4 Zone Teach-in
1.5 Teach-in of transparent objects
End End teach mode
2.1 Switching mode
2.2 Response time
2.3 Time delay setting
2.4 Expert menu/detailed settings
2.5 Reset
End back to operating mode
3.1 Set display value to zero
3.2 Display settings
3.3 Energy-saving mode
3.4 Reverse display
3.5 Hysteresis setting
3.6 External input configuration
3.7 Copy mode
3.8 Master Teach-in
3.9 ASC setting
3.10 Power setting of the sender LED
3.11 Keylock
End back to Expert menu
P. 6
P. 7
P. 8
P. 9
P. 10
P. 11
P. 12
P. 13
P. 14
P. 15
P. 16
P. 17
P. 18
P. 19
P. 20
P. 21
P. 22
P. 23
P. 24
P. 25
P. 26
Selection of the menu levels
Photoelectric sensor for fi ber-optic cables
WLL180T – Easy handling, structured functions
and optimum functionality.
The photoelectric sensor for fi ber-optic cables WLL180T with the SICK fi ber-optic
cables of the LL3 series is especially suited to detecting very small objects,
objects in front of refl ective backgrounds, and transparent and moving objects.
Fiber-optic cables are ideal for use in installations where space is restricted.
Locking, fiberoptic cable
Status LED for
switching output
Numeric display for
nominal value (green)
and actual value (red)
Mode/
Enter
key
Teach-in key
Arrow keys
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L+
M
Q
1
Ext. Input
brn
blu
blk
wht
Switching output and external input
The external input can be configured as
teach-in or test input.
2X4-DIGIT NUMERIC DISPLAY
Dual 7-segment display for simultaneously showing nominal/actual values and for interactive operator guidance.
ASC –
AUTOMATIC SENSITIVITY CONTROL
For instance, automatically adapting the switching
threshold to compensate for contamination when
detecting transparent objects.
SHORTEST RESPONSE TIME
Detection of fast processes is an easy task for the
worlds fastest photoelectric fiber-optic sensor. With a
response time of only 16 μs objects can be detected
precisely. A small jitter contributes to the accuracy of
the detection.
Smallest changes in the level of the received light are
already sufficient for a reliable detection.
HIGH RESOLUTION SIGNAL PROCESSING
The power of the sender LED can be adjusted in three
stages: saturation, e. g. in case of highly reflective
objects, is prevented.
ADJUSTING THE LIGHT INTENSITY
OF THE SENDER LED
From monitoring to power control.
Monitoring simplifies many things, and technical highlights
provide many options, always enabling easy commissioning
and permanently reliable operation.
WLL180T Photoelectric sensors for fiber-optic cables
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Teach-in Adjustment options
1-point Teach-in
to quickly learn the switching point
1.1
Page 6
2-point Teach-in
to safely learn the switching point
, ,
1.2
Page 7
Auto Teach-in
for Teach-in without stopping the production process
, ,
1.3
Page 8
Zone Teach-in
for learning an upper and lower switching threshold
1.4
Page 9
Transparent Teach-in
transparent objects such as bottles and films
1.5
Page 10
For standard applications: Teach-in and the commissioning is complete.
The manual or automatic adjustment with Teach-in is always the first step. The 5 different
Teach-in modes can be quickly and easily selected. Alternatively, the switching threshold can
be adjusted manually utilizing the display.
Manual adjustment of the switching threshold
–
+
Manual, step-by-step modification of the switching thresholds by operating the arrow keys.
After a few seconds, the display automatically jumps to the operating mode.
1
Locking fiber-optic cable
2
Display LED orange: lights
when the switching output is active
3
Display, numeric: 4-digit
green: switching threshold, operating
mode,
red: current reception value, Teach-in/
function parameter
4
Arrow key < (manual switching threshold:
higher resp. next function parameter)
5
Arrow key > (manual switching threshold:
lower or previous parameter)
6
Mode/Enter key (programming key)
7
“Teach-in” key
Function keys of the sensor unit Further functions
Quick jump back from configuration mode to operating mode.
By pressing the
-key for at least 2 seconds, the display
jumps from any position in the configuration menu back to the
main display.
Keylocks
Simultaneously pressing the
–
+
arrow keys for at
least 2 seconds in the RUN mode, locks or unlocks the keys
(display Loc/unloc).
1
2
3
4
6
5
7
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Application specific configuration: Utilising the entire functionality.
If further adjustments need to be made beyond the normal threshold adjustment, the entire
functionality can be selected via a comfortable menu.
Configuration Level I Level II Adjustment options
Switching mode
,
2.1
Page 11
Response time
, , , ,
2.2
Page 12
Time delay setting
, , , ,
,
2.3
Page 13
Expert menu/
detailed settings
Set display value to zero
,
3.1
Page 16
Display settings
, ,
3.2
Page 17
Energy-saving mode
,
3.3
Page 18
Reverse display
,
3.4
Page 19
Hysteresis setting
3.5
Page 20
External input configuration
, ,
3.6
Page 21
Bus
versions
Copy mode
,
3.7
Page 22
Master Teach-in
,
3.8
Page 23
ASC setting
,
3.9
Page 24
Power setting of the sender LED
, ,
3.10
Page 25
Keylock
,
3.11
Page 26
Reset
,
2.5
Page 15
WLL180T Photoelectric sensors for fiber-optic cables
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1.1 1-point Teach-in
1. Press Teach-in key for 2 s
Easy setting of the switching threshold.
Secondary condition:
Diffuse type = object absent
Through-beam = object present
Adjust diffuse type to the background without object
2. Operating mode
Teach-in active
3. In the basic menu, select
required mode by pressing
the arrow keys
4. 1-point Teach-in is shown on
the display
5. Adjust diffuse type fiber to the
background without object and
press Teach-in key
6. Teach-in successful, set switching threshold blinks 3x and the
display returns to the main display
Teach-in
–
+
Adjusts the switching threshold with + 10% according to the
light received.
Typical applications:
Standard applications,
no spurious effects expected,
max. system reserve.
Threshold level
Teach-in signal
+10%
0
t
Gain
}
In case of faulty input during Teach-in,
the following messages are shown:
Sensing level is too low
Sensing level is saturated
Difference of sensing level between
two points is too small
Switching threshold +10%
WLL180T Photoelectric sensors for fiber-optic cables
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Exact adjustment of the switching threshold to object and ambient
conditions, in any order.
1st step: Teach-in with object
2. Operating mode
Teach-in active
3. In the basic menu, select
required mode by pressing
the arrow keys
4. 2-point Teach-in is shown on
the display
9. Teach-in successful, set switching threshold blinks 3x and the
display returns to the main display
Teach-in
–
+
6. Press Teach-in key
5. 1st point: adjust diffuse type
fiber with object present
8. Press Teach-in key
7. 2nd point: adjust diffuse type
fiber to the background without object
2nd step: Teach-in without object
The switching threshold is defined between the 1st and 2nd point.
1.2 2-point Teach-in
Typical applications:
Exact switching point,
switching threshold is adapted to the object and ambient
conditions, create low system reserves.
1. Press Teach-in key for 2 s
In case of faulty input during Teach-in,
the following messages are shown:
Sensing level is too low
Sensing level is saturated
Difference of sensing level between
two points is too small
Switching threshold
1.
2.
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