# KEYENCE CS-LGS30PC

Hardware · `CS-LGS30PC` · verification: source checked

The CS-LGS30PC is a linear cylinder sensor for gripper models, fitted in an SMC C-shaped slot. It detects the magnetic flux of a cylinder piston over a 30 mm sensor body and reports piston position through an open-collector output or through IO-Link. It is used to confirm gripper open/closed position on pneumatic grippers.

## Specification

| Property | Value |
|---|---|
| Category | sensor |
| Weight | 0.01 kg |
| Supply voltage | 18 to 30 VDC |
| Output type | PNP (open collector, M8 connector) |
| Power consumption | 0.00051 kW |
| Operating temp min | -20 °C |
| Operating temp max | 60 °C |

## Connected

- Standards: [IEC 60529 Degrees of protection provided by enclosures (IP Code)](https://machineschema.com/standard/iec-60529.md)
- Manufacturer: [KEYENCE](https://machineschema.com/manufacturer/keyence.md)
- Protocols: [IO-Link](https://machineschema.com/protocol/io-link.md)

## Safety

- Enclosure rating IP65/IP67 per IEC 60529.
- Power supply must be 18 to 30 VDC including ripple, Class 2 or LPS.
- Keep cable length to 30 m or less for the PNP M8 connector type, and 20 m or less when connecting via IO-Link.
- Built-in protection: reverse polarity protection and output overcurrent protection.
- No impact monitoring function is provided.
- Ambient temperature range -20 to +60 °C with no freezing; relative humidity up to 85 % RH with no condensation.

## Study notes

- Sensor size 30 mm (1.18 in).
- Supported slot shape is the SMC C-shaped slot; other C/T-shaped slot cylinders may need optional brackets, and slot shape/size varies by cylinder manufacturer and type.
- Minimum detectable magnetic flux density 2 mT; maximum supported speed 1 m/s.
- Resolution 0.01 mm; repeatability guaranteed by KEYENCE inspection facilities and may vary with installation environment.
- Linearity (reference value) ±0.3 mm.
- Detection cycle 1 ms; default response time 5 ms, settable as fast as 3 ms with a high-functionality amplifier, panel or IO-Link; response time increases by up to +13 ms when a high-functionality amplifier is used.
- Number of outputs is 2 when using just the sensor and 4 when connected to IO-Link or the SP-N/V Series.
- Control output is open-collector, 30 VDC or less, 50 mA total for 2 outputs, residual voltage 2.5 V or less.
- Network function is IO-Link Specification v1.1/COM3.
- Body materials are aluminum alloy, SUS304 and PBT; weight approx. 10 g (0.35 oz).
- NPN operation is possible when using a high-functionality amplifier.

## Sources

1. [Specs Linear Cylinder Sensor for Grippers CS-LG series](https://www.keyence.com/products/sensor/cylinder-sensor/cs-lg/specs/) (accessed 2026-10-26)

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