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Omron ZX1-LD Instruction Sheet page 2

Laser displacement sensor cmos type

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2
Settings
2-1
Setting and Display Overview
■ Nomenclature and Function
[LD ON] Laser ON indicator (Green)
[MENU] Menu Indicator (Orange)
Turns ON when sensor is emitting laser.
Turns ON in MENU setting mode.
[ST] Smart tuning indicator (Blue)
[ZERO] Zero reset indicator (Orange)
Turns ON when zero reset is set.
[TUNE] button
OUT1 Output indicator
Used to perform tuning.
(Orange)
88888
. . . .
Turns ON when the value
exceeds Threshold 1 or within
the range of 1L to 1H.
[MODE] button
OUT2 Output indicator
Switches between
Orange)
Measurement mode and MENU
[DOWN] button
Turns ON when the value exceeds
setting mode by holding it for
Threshold 2 or within the range
3 seconds or longer. Switches
Used to change a
of 2L to 2H.
to CH Setting mode when it is
threshold value or select
[UP] button
pressed less than 3 seconds.
a setting item.
Used to change a
Digital display
threshold value or select
Displays the displacement volume in
a setting item.
Measurement mode and setting
item/setting value in other modes.
■ Other Button Operation
Tuning
button
TUNE
button +
button
Zero reset setting
TUNE
UP/DOWN
simultaneously for less than 3 sec.
Zero reset cancel
button +
button
UP/DOWN
TUNE
simultaneously for min. 3 sec.
Key lock setting/
button +
button
cancel
UP/DOWN
MODE
simultaneously for min. 3 sec.
■ Switching to Individual Modes
Measurement mode
Menu Setting mode
Hold for
min. 3 sec.
0.00
ch-1
MODE
Refer to "2-3 (1)".
CH Setting mode
Less than 3 sec.
MODE
Threshold Setting mode
Less than 1 sec.
UP/DOWN
10.00
Refer to "2-4".
No operation for min. 2 sec.
2-2
Output and Threshold Value
<Area Output is OFF>
<Area Output is ON>
CH1
CH2
CH1
CH2
OUT1
OUT2
OUT1
Measured value
Measured value
Measured value
Measured value
(Near)
OFF
Threshold
Threshold
ON
ON
1H
Threshold
Threshold
ON
1
2
Threshold
Threshold
OFF
OFF
(Far)
1L
OFF
The above figures represent the behaviors when
Output polarity
the output polarity [
] is set to normally-open
[
] (initial value). If the polarity is set to
normally-closed [
], the ON/OFF polarities in
the figures are reversed.
2-3
Tuning
■ Quick Reference for Tuning Operation (Perform tuning after selecting a CH)
Press
button to enter CH setting mode, and then
CH setting mode
MODE
press
or
button to select a CH.
1-point tuning
Press
button for 3 to 5 seconds.
Refer to "2-3 (1)", "2-3 (4)"
2-point tuning
Press
button once for the 1st point.
Refer to "2-3 (2)", "2-3 (3)"
Press
button once for the 2nd point.
Tuning mode without workpiece
Press
button for 5 seconds.
Refer to "2-3 (5)"
• TUNE1 input (external input terminal) can also replace the button operations
for tuning to CH1.
Tuning can be performed for TUNE2 to CH2.
• The allocation of
button and external input terminals can be fixed by
TUNE
changing the tuning type.
Refer to " 2.Tuning Type,
• When setting the background suppression function to ON and performing tuning,
the measurement value and sensitivity level can be limited according to the sensitivity.
Use it when abnormal distance is detected due to diffuse reflection caused by surrounding walls, etc.
Refer to " 5. Background suppression function,
• When performing tuning, threshold values are recorded in EEPROM (non-volatile
memory) in the sensor. The writing life of EEPROM is 100,000 times. Be careful of
writing life when performing measurement-by-measurement tuning.
(1) Switch Channel to Set Threshold
● CH Setting Mode
1. Briefly press the
button in Measurement
UP/DOWN
mode.
2. The channel display changes in the following sequence
by pressing the
button.
UP/DOWN
ch-2
ch-1
Threshold 1
Threshold 2
<Area Output is ON>
ch1h
ch1l
ch2h
Threshold 1H
Threshold 1L
Threshold 2H
Threshold 2L
3. Press the
button to return to measurement mode.
MODE
(2) Detect for Workpiece Presence/Absence
Refer to "2-3"
● 2-point Tuning
Used to distinguish between two objects with different height from the Sensor e.g.
OK and NG, workpiece and background (reference surface) or workpieces A and B.
Refer to "③ (1)"
1. Press the
button (within 1 sec.) once without a workpiece.
TUNE
Refer to "③ (1)"
Refer to "③ (2)"
The display changes [
]
[t-p1]
[
2. Lightly press the
button once again with a workpiece.
TUNE
OUT2
OFF
2H
Sensor
Sensor
ON
D
2L
OFF
ON
Threshold
Workpiece
Output at detection
OFF
Reference surface
Without workpiece
ON
The order of the workpiece does not matter.
OFF
Refer to "
Error Messages" .
(3) Detect for Workpiece Presence/Absence
(Tuning Only Using Reference Surface)
● 1-point Tuning
Used to judge the presence/absence of a workpiece by referring to the pre-determined
background (reference surface).
1. Hold the
button (minimum 3 and less than 5 seconds) until [
TUNE
without a workpiece.
2. When [
] starts blinking, release the
TUNE
The display changes [
]
[
] and 1-point tuning is completed.
The measured value display returns.
Detailed Settings"
Sensor
Detailed Settings"
D
ON
Threshold
OFF
Reference surface
Without workpiece
-3-
(4) Set Upper Limit and Lower Limit (Using Area Output)
● 2-point Area Tuning
Used to judge if the workpiece is within the range by using the upper limit and
ch-1
lower limit workpieces.
1. Select "ON" for area output in menu setting mode to return to measurement mode.
2. Set the workpiece at the desired upper limit and lightly press the
ch2l
The display changes [
0.00
3. Set the workpiece at the desired lower limit and lightly press the
The display changes [
The measured value display returns.
t-p1
Sensor
D
].
OFF
ON
D
OFF
The order of the workpiece does not matter.
(5) Set Plus/Minus (±) Tolerance
t-p2
● 1-point Area Tuning
The display changes [
]
[
]
Used to assign the upper and lower limits to one actual workpiece and judge
and 2-point tuning is completed.
if the workpiece is within the range.
The measured value display returns.
Setting is Completed
1. Set the AREA item in the menu to "ON" and return to the measured value display.
The margin (D) for the Threshold of
2. Hold the
button (3 to less than 5 seconds) until [
each model is as follows (fixed value):
TUNE
to detect on the reference surface.
ZX1-
ZX1-
ZX1-
ZX1-
Model
3. When [
] starts blinking on the display,
LD50□□
LD100□□
LD300□□
LD600□□
release the
button.
D
0.2
0.7
3
15
TUNE
Unit (mm)
The display changes [
The measured value display returns.
Sensor
D
OFF
] blinks
ON
Workpiece
OFF
Hold for 3 to
less than 5 sec
until [
] blinks.
To set plus and minus threshold values using "0" as the background, use the zero
reset function to reset the distance to "0". Then, perform 1-point area tuning.
t-p1
Refer to "
Convenient Setting Features (1)"
(6) When (2) to (5) Methods Failed
button.
● Tuning mode without Workpiece (Area Output is OFF)
Used to judge the presence/absence of a workpiece using the pre-determined background
Setting is Completed
(reference surface) as the reference. Unlike 1-point tuning, this method focuses on the detection
of the absence of workpiece. Insufficient light level or outside-range errors caused by
The margin (D) for the Threshold of
each model is as follows (fixed value):
complicated workpiece appearance are judged as "the presence of the workpiece".
● Tuning mode without Workpiece (Area Output is ON)
ZX1-
ZX1-
ZX1-
ZX1-
Model
LD50□□
LD100□□
LD300□□
LD600□□
Used to assign the upper and lower limits to the distance from the reference surface and judge
if a workpiece is within the range. Unlike 2-point tuning, this method focuses on the detection of
D
0.2
0.7
3
15
the absence of workpiece. Insufficient light level or outside-range errors caused by complicated
workpiece appearance are judged as "the presence of the workpiece".
Unit (mm)
1. Hold the
Refer to " 7. Area Output,
Detailed Settings"
button.
TUNE
2. When [
t-p1
]
[t-p1]
[
].
pnt 2
button.
TUNE
2-4
● Threshold Value Setting
t-p2
]
[
] and 2-point tuning is completed.
Setting is Completed
The margin (D) for the upper/lower limit of
each model is as follows (fixed value):
Sensor
Upper limit
workpiece
ZX1-
ZX1-
ZX1-
ZX1-
Model
LD50□
LD100□
LD300□
LD600□
Threshold
H
2-5
Threshold
L
D
0.13
0.4
2
9
Lower limit
workpiece
Background
Unit (mm)
(Reference surface)
Refer to " 7. Area Output,
Detailed Settings"
] blinks with a workpiece
Hold for 3 to
less than 5 sec
until [
] blinks.
t-p1
]
[
] and 1-point area tuning is completed.
Setting is Completed
The margin (D) for the upper/lower limit of
each model is as follows (fixed value):
ZX1-
ZX1-
ZX1-
ZX1-
Model
Threshold H
LD50□
LD100□
LD300□
LD600□
Threshold L
D
D
0.13
0.4
2
9
Background
(Reference
surface)
Unit (mm)
-4-
button (5 sec. or longer) until [
] blinks rapidly without a workpiece.
TUNE
Hold for 3 to
less than 5 sec
until [
rapidly.
] in the display starts blinking rapidly, release the
button.
TUNE
Setting is Completed
<Tuning mode without Workpiece>
<Area Tuning mode without Workpiece>
Sensor
Sensor
ON
Threshold H
ON
OFF
Threshold
Reference surface
OFF
Reference surface
Threshold L
ON
Fine Adjustment of Threshold Value
To loosen or tighten the ON/OFF switching conditions, use the
minute adjustment of the threshold values.
UP/DOWN
0.00
Increase threshold
Decrease threshold
The OUT1 indicator keeps blinking while "Threshold 1/ Threshold 1H/ Threshold 1L"
is being changed.The OUT2 indicator keeps blinking while "Threshold 2/ Threshold
2H/ Threshold 2L" is being changed.
Fine Adjustment of Hysteresis Width
Hysteresis Width Setting
A minute step can be judged by adjusting the hysteresis width according to the
workpiece. However, note that the judgment output varies if lowering the hysteresis
width while the displacement value is varying due to moving workpiece or low
re ection light intensity.
What is Hysteresis Width?
A point in which a judgment output turns from OFF to ON is called an operating
point, and a point in which a judgment output turns from ON to OFF is called a return
point. On this sensor, threshold means operating point, and a distance to the return
point can be set based on the hysteresis width.
Note that the direction where the hysteresis width is set for the threshold differs
depending on ON/OFF of the area output.
Area output is OFF
Hysteresis Width
Threshold
Measured value
ON
Judgment output
OFF
Operating point
Return point
Area output is ON
Measured value
Hysteresis Width
Threshold H
Threshold L
ON
Judgment output
OFF
] blinks
buttons for

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