Keyence LR-TB2000 Series Bedienungsanleitung PDF herunterladen (Seite 10)

6-5. Hysteresis

Hysteresis is the difference between the value at which the output turns ON and the value

at which the output turns OFF.

• With [Standard], the hysteresis varies depending on the response time and the

detecting distance.

• With [Custom], you can specify an arbitrary value regardless of the detecting distance.

• For details on the operation differences between the detection modes, see "4

Detection Mode" (page 4).

6-6. Received Light Sensitivity

By lowering the received light sensitivity level, you can reduce the number of times that

malfunctions such as the following occur.

• Detections of dirt and mist between the sensor and the detected object.

• Detections of translucent objects when passing through translucent objects to detect

the target.

You cannot change the received light sensitivity when " 6-1. Response Time" (page 9)

is set to [1ms/10ms]/[2ms/20ms].

6-7. Input Function

For details, see " 3-2. External Input Selection" (page 3).

6-8. Output Hold

This function holds the display value and the output status that were in use immediately

prior to the LR-TB Series becoming unable to receive light.

 When Output Hold is OFF  When Output Hold is ON

6-9. Screen Brightness

You can set the operation to perform when no button operations are performed for a set

length of time.

• If you use the LR-TB Series for a long period of time, the display brightness will

decrease.

• If you set this to [100%], the display brightness will decrease at a faster rate.

6-10. Interference Prevention

With the LR-TB Series, you can prevent the effect of mutual interference by changing the

laser emission channel. If you are using multiple LR-TB Series units in close proximity to

each other, set each one to have a different laser emission channel.

6-11. Password

If you set this to [ON], you can set a personal identification number that must be entered to

release the " Key Lock" (page 7). You can set the personal identification number to a

value from 0 to 9999.

6-12. Initialization

Initialize the sensor settings. You can also use the shortcut keys to execute the

initialization. "Initialization" (page 7)

After initialization, you will have to configure the "3 Initial Settings" (page 3).

7Other

Error Display

* When Output mode is set to [Error], while “Near” or “- - - -” is on display, the output would not

switch.

Output When an Error Occurs

*1 When Output mode is set to [Error], despite the setting of N.O. or N.C., LR-T would remain

OFF to protect the output circuit.

*2 When Output mode is set to [Error], LR-T would turn ON with N.O. and turn OFF with N.C.

Item Description

100% The display brightness is always kept at 100%.

30% (default value)

After a certain length of time elapses, the display brightness is set to

30%.

Display Off After a certain length of time elapses, the display is turned OFF.

FAR

NEAR

OFF

N.O.

N.C.

OFF

Hysteresis

Setting value

1000 2000

Hysteresis

Detecting

distance

Unit: mm

Response Time (ms) A(mm) B(mm)

25 to 2000 15 20

10, 20 30 40

1, 2 60 80

NEAR

（

N.O.

）

OFF

NEAR

（

N.O.

）

OFF

Display Display

Distance

display

Distance

display

SettingSetting

DistanceDistance

Output Output

Error Display Cause and Remedy

NEAR*

The detected object is not within the detectable range (the detected

object is too close).

- - - -*

Light reflected from the detected object could not be received.

• The amount of light received from the detected object is low.

• The detected object is not within the detectable range of the LR-TB (the

detected object is too far away).

Over Current

An overcurrent is flowing through the output wire.

• Check whether the output wire is connected correctly.

• Check whether the output wire is in contact with other wires.

Laser Error

A laser diode error has occurred.

• If you cannot fix the problem by restarting the product, the product must

be replaced.

EEPROM Error

1) Settings have been rewritten more than 1,000,000 times.

• The memory has reached the end of its service life.

2) A recording memory error has occurred.

• If you cannot fix the problem by restarting the product, the product must

be replaced.

System Error

An internal system error has occurred.

• If you cannot fix the problem by restarting the product, the product must

be replaced.

Error Display

Output ON or OFF

N.O. N.C.

NEAR ON OFF

- - - - OFF ON

Over Current

OFF OFF

Laser Error

OFF ON

EEPROM Error

The same as during normal operation

System Error

OFF ON

1 2 ... 5 6 7 8 9 10 11 12

Kommentare zu diesen Handbüchern

Burkhard Schmidt 06 Mar 2024 | 11:24:43

kein kom.

سعد 22 Oct 2024 | 20:49:34

ممتاز

N 21 Feb 2025 | 18:09:55

Keyence LR-TB2000 Series Bedienungsanleitung Seite 10

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