Ultra High-Speed/High-Accuracy Laser Displacement Sensor

LK-G5000 series

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Main controller: Built-in type, NPN LK-G5001V

LK-G5001V - Main controller: Built-in type, NPN

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.

Data Sheet (PDF)


CAD Data

360°view (3D PDF)


  • CE Marking




Separate type



Main controller

Sensor head compatibility


No. of connectable sensor heads



Minimum display unit

LK-HD500: 0.001 µm

Display range

LK-HD500: ±999.999 µm to ±9,999.99 mm (7 settings selectable)

Display cycle

LK-HD500: Approx. 10 times/sec.

Display interface

Display port

Either the display unit (LK-HD500) or dedicated touch panel (LK-HD1001) can be connected

LED indicator


Terminal block

Analog output voltage

±10 V output, Output impedance: 100 Ω

Analog current output

4 to 20 mA, Maximum load resistance: 350 Ω

No. of analog outputs


TIMING 1 input

Non-voltage input*3

RESET 1 input

Auto-zero 1 input

Laser control input

Non-voltage input*4

Laser remote input

Non-voltage input

Alarm output

NPN open-collector output

General comparator output

Expansion connector

TIMING input

Non-voltage input

RESET input

Auto-zero input

Program switching input

Binary selection input

Alarm output

NPN open-collector output

Comparator output

Binary output

RS-232C interface

Baud rate: 9,600 to 115,200 bps
Data length: 8 bits, Stop bit length: 1 bit, Parity: None/even/odd

USB interface

USB 2.0 Hi-Speed compliant*5

Ethernet interface



Cyclic communication (implicit messaging)
Message communication (explicit messaging) : UCMM and Class3 Number of connections: 32 Complies with conformance test version CT14*7


The following PLCs are supported:Mitsubishi Electric: MELSEC iQ-R Series, iQ-F Series, Q Series, L Series, FX Series
EtherNet/IP™, CC-Link, and DeviceNet® cannot be used in conjunction with PLC-Link

Head expansion unit connector

Up to 10 head expansion units can be connected to one main controller

Expansion unit connector

Either of the CC-Link unit (LK-CC100) or DeviceNet® unit (LK-DN100) can be connected

Power supply

Power supply voltage

24 VDC ±10 %

Maximum current consumption

0.6 A or less with 1 head/3.5 A or less with 12 heads

Environmental resistance

Ambient temperature

When one or less head expansion unit is connected: 0 to +50 °C 32 to 122 °F.
When two or more head expansion units are connected: 0 to +40 °C 32 to 104 °F.

Relative humidity

35 to 85 % RH (No condensation)


Approx. 600 g

*1 NPN open-collector output rating: 50 mA max. (40 V max.), Residual voltage: 0.5 V max.
Non-voltage input rating: ON voltage: 1 V max., OFF current: 0.6 mA max.
*2 Part of the input/output circuit of the LK-G5000 Series is internally common. Be careful that no potential difference is generated between the internally common terminals due to the potential difference between the cables/external devices. For details, refer to "Precautions on wiring" in the User's Manual.
*3 This input is applied to all of the synchronized OUT.
*4 When the laser class 3B sensor head is connected, a key-operated switch must be used for the input to this terminal. The laser is emitted only when the key-operated switch is set to the ON position. (Select a key which can be removed only when it is set to the OFF position.)
When the laser class 2/3R sensor head is connected, the laser turns on when this terminal is opened and turns off when it is short-circuited.
*5 When a PC supporting USB 1.1 or USB 2.0 full speed is connected, the data refresh cycle and other operations may slow down.
*6 Use the Ethernet interface only for direct connections with a PC or for local network connections with a PC or LK-G5000 Series units.
*7 The EtherNet/IP™ interface cannot be used when a CC-Link unit or a DeviceNet® unit is installed.
EtherNet/IP™ is supported by the latest controllers. For details on which controllers support EtherNet/IP™ , contact your nearest KEYENCE office.

Data Sheet (PDF) Other Models