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-3-

-4-

1. Hold the         button (minimum 3 and less than 5 seconds) until [        ] blinks 
 without a workpiece.

2. When [        ] starts blinking, release the        button. 
    The display changes [        ]     [        ] and 1-point tuning is completed. 

    The measured value display returns.

Used to judge the presence/absence of a workpiece by referring to the pre-determined 

background (reference surface).

Used to assign the upper and lower limits to one actual workpiece and judge

 if the workpiece is within the range.

 1-point Tuning

2. Hold the       button (3 to less than 5 seconds) until [         ] blinks with a workpiece 

    to detect on the reference surface.

1. Set the AREA item in the menu to "ON" and return to the measured value display.

3. When [        ] starts blinking on the display, 
    release the       button.

 1-point Area Tuning

 (3) Detect for Workpiece Presence/Absence

      

(Tuning Only Using Reference Surface)

(5) Set Plus/Minus (±) Tolerance

 Threshold Value Setting

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.

2

 Detect for Workpiece Presence/Absence

1. Press the       button (within 1 sec.) once without a workpiece.

3. Set the workpiece at the desired lower limit and lightly press the        button.

To loosen or tighten the ON/OFF switching conditions, use the              buttons for 
minute adjustment of the threshold values.

The order of the workpiece does not matter.

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.

 2-point Tuning

2. Lightly press the        button once again with a workpiece.

The display changes [         ]      [          ] 

and 2-point tuning is completed. 

The measured value display returns.

The order of the workpiece does not matter.

Increase threshold

Decrease threshold

Refer to " 7. Area Output,      Detailed Settings"

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.

The display changes [          ]      [

t-p1

]      [           ].

0.00

Hold for 3 to

less than 5 sec

until [       ] blinks.

TUNE

TUNE

TUNE

TUNE

TUNE

TUNE

TUNE

UP/DOWN

t-p1

t-p2

Setting is Completed

t-p1

Setting is Completed

t-p2

The display changes [         ]      [          ] and 2-point tuning is completed. 

The measured value display returns.

Setting is Completed

Hold for 3 to

less than 5 sec

until [       ] blinks.

t-p1

Setting is Completed

Refer to "

  

    Convenient Setting Features (1)"

Refer to "      Error Messages" .

2. The channel display changes in the following sequence 
    by pressing the                button.

3.  Press the        button to return to measurement mode.

1.  Briefly press the                button in Measurement
     mode.

 CH Setting Mode

1

 Switch Channel to Set Threshold

ch-1

ch-2

ch1h

ch1l

ch2h

ch2l

<Area Output is ON>

Threshold 1

Threshold 2

Threshold 1H

Threshold 1L

Threshold 2H

Threshold 2L

ch-1

0.00

UP/DOWN

UP/DOWN

MODE

1. Hold the         button (5 sec. or longer) until [        ] blinks rapidly without a workpiece.

(6) When (2) to (5) Methods Failed

Used to judge the presence/absence of a workpiece using the pre-determined background
 (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 
complicated workpiece appearance are judged as "the presence of the workpiece".

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 
the absence of workpiece. Insufficient light level or outside-range errors caused by complicated 
workpiece appearance are judged as "the presence of the workpiece".

2. When [         ] in the display starts blinking rapidly, release the       button.

 Tuning mode without Workpiece (Area Output is OFF)

 Tuning mode without Workpiece (Area Output is ON)

Threshold H

Threshold 

Threshold L

Reference surface

Reference surface

ON

OFF

OFF

ON

ON

<Tuning mode without Workpiece>

<Area Tuning mode without Workpiece>

TUNE

TUNE

Sensor

Sensor

Hold for 3 to

less than 5 sec

until [       ] blinks

rapidly.

Setting is Completed

1. Select "ON" for area output in menu setting mode to return to measurement mode.

 2-point Area Tuning

2. Set the workpiece at the desired upper limit and lightly press the        button.

(4) Set Upper Limit and Lower Limit (Using Area Output)

Refer to " 7. Area Output,      Detailed Settings"

Used to judge if the workpiece is within the range by using the upper limit and 

lower limit workpieces.

TUNE

t-p1

The display changes [          ]      [

t-p1

]      [           ].

pnt 2

Fine Adjustment of Threshold Value

2-4

Settings

2

Tuning

2-3

2-2

Setting and Display Overview

Output and Threshold Value

2-1

MODE

UP/DOWN

Hold for
min. 3 sec.

Less than 3 sec.

Menu Setting mode

Refer to "2-3 (1)".

CH Setting mode

Measurement mode

0.00

MODE

Less than 1 sec.

Threshold Setting mode

ch-1

No operation for min. 2 sec.

10.00

■ 

Switching to Individual Modes

■ 

Other Button Operation

Tuning

Zero reset setting

Zero reset cancel

Key lock setting/
cancel

button

                   button 
simultaneously for less than 3 sec.

                   button
 simultaneously for min. 3 sec.

                   button
 simultaneously for min. 3 sec.

Refer to "2-4".

Refer to "2-3"

Refer to "

 (2)"

Refer to "

 (1)"

Refer to "

 (1)"

<Area Output is OFF>

<Area Output is ON>

Measured value

CH1

CH1

OUT1

OUT2

CH2

CH2

OFF

OFF

OFF

OFF

OFF

OFF

Threshold 

1

Threshold 

2

Threshold 

1H

Threshold 

1L

Threshold 

2H

Threshold 

2L

Measured value

Measured value

Measured value

OUT1

OUT2

MODE

UP/DOWN

UP/DOWN

UP/DOWN

TUNE

TUNE

TUNE

ON

ON

ON

ON

• TUNE1 input (external input terminal) can also replace the button operations 

  for tuning to CH1.

  Tuning can be performed for TUNE2 to CH2.

• 

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.

• The allocation of        button and external input terminals can be fixed by 

  changing the tuning type.

Refer to " 2.Tuning Type,       Detailed Settings"

Refer to "2-3 (1)", "2-3 (4)"

Refer to "2-3 (2)", "2-3 (3)"

Refer to "2-3 (5)"

1-point tuning

2-point tuning

Tuning mode without workpiece

CH setting mode

TUNE

Press               button for 3 to 5 seconds.

Press               button once for the 1st point.

Press               button once for the 2nd point.

Press               button for 5 seconds.

■ 

Quick Reference for Tuning Operation (Perform tuning after selecting a CH)

(Near)

(Far)

. . . . 

[

ZERO

Zero reset indicator (Orange)

[

ST

Smart tuning indicator (Blue)

OUT2 Output indicator 

Orange)

OUT1 Output indicator 

(Orange)

Turns ON when tuning is performed with the background

suppression function ON.

Turns ON in MENU setting mode.

[

MENU

Menu Indicator (Orange)

[

LD ON

Laser ON indicator (Green)

Turns ON when zero reset is set.

Turns ON when sensor is emitting laser.

Digital display

Displays the displacement volume in 
Measurement mode and setting 
item/setting value in other modes.

 Nomenclature and Function

Turns ON when the value

exceeds Threshold 1 or within

the range of 1L to 1H.

Turns ON when the value exceeds 

Threshold 2 or within the range
of 2L to 2H.

[

TUNE

button

Used to perform tuning.

[

MODE

button

Switches between 
Measurement mode and MENU 
setting mode by holding it for 
3 seconds or longer. Switches 
to CH Setting mode when it is 
pressed less than 3 seconds.

[

DOWN

button

Used to change a 
threshold value or select 
a setting item.

[

UP

button

Used to change a 
threshold value or select 
a setting item.

Refer to " 5. Background suppression function,       Detailed Settings"

88888

    The display changes [        ]     [        ] and 1-point area tuning is completed. 

    The measured value display returns.

Sensor

Threshold

 H

D

D

0.13 0.4

2

9

Threshold

 L

Sensor

Lower limit 

workpiece

ON

OFF

OFF

The margin (D) for the upper/lower limit of 

each model is as follows (fixed value):

Model

ZX1-
LD50

ZX1-
LD100

ZX1-
LD300

ZX1-
LD600

D

Background 

(Reference surface)

Upper limit 

workpiece

Unit (mm)

D

D

0.13

0.4

2

9

ON

OFF

OFF

D

ZX1-
LD50□

ZX1-
LD100□

ZX1-
LD300□

ZX1-
LD600□

Sensor

Workpiece

Threshold H

Threshold L
Background
(Reference 
  surface)

The margin (D) for the upper/lower limit of 

each model is as follows (fixed value):

Model

Unit (mm)

The above figures represent the behaviors when

 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.

Output polarity

Output at detection

ON

OFF

Press        button to enter CH setting mode, and then 

press           or           button to select a CH.

MODE

• 

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.

Sensor

Threshold

Reference surface

Sensor

Workpiece

ON

OFF

Without workpiece

0.2

0.7

3

15

D

ZX1-
LD50□□

ZX1-
LD100□□

ZX1-
LD300□□

ZX1-
LD600□□

The margin (D) for the Threshold of 

each model is as follows (fixed value):

Model

Unit (mm)

D

Threshold

Reference surface

Without workpiece

Sensor

ON

OFF

0.2

0.7

3

15

D

ZX1-
LD50□□

ZX1-
LD100□□

ZX1-
LD300□□

ZX1-
LD600□□

The margin (D) for the Threshold of 

each model is as follows (fixed value):

Model

Unit (mm)

D

Fine Adjustment of Hysteresis Width

2-5

● 

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 
reflection 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.

Threshold

Hysteresis Width

Hysteresis Width

Judgment output

Judgment output

Area output is OFF

Measured value

Measured value

Area output is ON

Operating point
Return point

ON

OFF

Threshold L

ON

OFF

Threshold H

Summary of Contents for ZX1-LD

Page 1: ... line for monitor output Connect this line separately from the blue 0 V GND Important Be sure to connect to blue 0 V Shield Analog GND Inputs tuning to CH1 Inputs tuning to CH2 Pink Zero reset input Used to execute or cancel zero reset Purple Red LD OFF input Power supply Orange Unit mm ZX1 LD300 ZX1 LD600 ZX1 LD50 ZX1 LD100 10 2 A L 50 1 1 9 66 57 15 5 4 5 45 6 55 8 13 6 27 2 10 7 22 7 10 1 17 13...

Page 2: ...el Key lock setting cancel button button button simultaneously for less than 3 sec button button simultaneously for min 3 sec button button simultaneously for min 3 sec Refer to 2 4 Refer to 2 3 Refer to 2 Refer to 1 Refer to 1 Area Output is OFF Area Output is ON Measured value CH1 CH1 OUT1 OUT2 CH2 CH2 OFF OFF OFF OFF OFF OFF Threshold 1 Threshold 2 Threshold 1H Threshold 1L Threshold 2H Thresho...

Page 3: ...E UP DOWN ON OFF output is reversed at NC Refer to Settings 2 3 Pressing the button from the item setting moves to the next item menu All the settings are common to CH1 and CH2 MODE Outputs the immediately previous value when distance detection is judged to be impossible Output content OUT1 OUT2 output Both outputs OFF Outputs the clamp value 22 mA Monitor output 1 23 It is recommended that you se...

Page 4: ...able below describes non permanent hardware errors and their troubleshooting Phenomena Display is blank No digital display The Sensor restarts during operation Laser is not emitted appears in the display Input signal is not received Measured value is not stable fluctuating depending on the day or time appears in the display OUT1 indicator OUT2 indicator blinks OUT1 indicator OUT2 indicator keeps t...

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