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KEYENCE CS-LC40P

The KEYENCE CS-LC40P is a linear cylinder sensor in the CS-L series. It uses a C-shaped slot and provides PNP open-collector output. It detects piston position magnetically with 0.1 mm resolution.

Source checked10/10 values · 2026-10-26KEYENCESensor
Repeatability
±0.5mm
IP rating
IP65
Weight
0.032kg

Specification

1 source
Categorysensor
Supply voltage18 to 30 VDC
Output typePNP open-collector
Power consumption0.0007 kW
Operating temp min-20 °C
Operating temp max60 °C

Quick answers

What is the repeatability of the KEYENCE CS-LC40P?
±0.5 mm, per Specs Linear Cylinder Sensor CS-L series (keyence.com).
How much does the KEYENCE CS-LC40P weigh?
0.032 kg, per Specs Linear Cylinder Sensor CS-L series (keyence.com).
What is the IP rating of the KEYENCE CS-LC40P?
IP65, per Specs Linear Cylinder Sensor CS-L series (keyence.com).

Study notes

  • Sensor size: 40 mm; supported slot shape: C-shaped slot.
  • Detection length: supported cylinder length + 5 mm.
  • Minimum detectable magnetic flux density: 2 mT; maximum supported speed: 3 m/s.
  • Resolution: 0.1 mm; repeatability: ±0.5 mm; detection cycle: 1 ms (default response time 3 ms).
  • Display method: Bar LED.
  • Number of outputs: 2 (sensor alone) or 4 (via IO-Link/SP-N/V Series).
  • Control output: open-collector, 30 VDC or less, 100 mA total for 2 outputs, residual voltage 2.5 V or less.
  • Power consumption: 650 mW (27 mA or less at 24 V); protection: reverse polarity and output overcurrent.
  • Material: polyamide, PBT, POM, SUS303, zinc nickel plating, NBR; weight approx. 32 g; enclosure rating IP65/IP67 (IEC 60529).
  • Cable length limit: 30 m or less for PNP M8 connector type.

Safety

  • Ambient temperature range: -20 to +60°C (no freezing).
  • Relative humidity: up to 85% RH (no condensation).
  • Vibration resistance: 10 to 500 Hz, power spectral density 0.816 G²/Hz in X, Y, and Z directions.
  • Shock resistance: 100 m/s² (10 G), 1000 times each for X, Y, and Z axes.
  • Power supply must be Class 2 or LPS.
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