PLC I/O
PLC input / output
A controller interface point connecting field signals to an identified module channel.
Schematic
Symbols · LS ROLLER
Roller-operated limit switch
A roller-operated limit switch transfers equipment motion through a roller actuator to its electrical contacts.
Schematic · LS ROLLER
What it represents
A roller-operated limit switch transfers equipment motion through a roller actuator to its electrical contacts. The schematic names the mechanism while the GA or mechanical detail determines the roller location.
How to read it
- Check the actuation direction and travel against the mechanism detail.
- The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation.
Information to show or reference
- Identify roller position
- State contact action
- Reference travel and overtravel
A distinction that matters
A roller mechanism is different from an electronic proximity sensor.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
AutoCAD Electrical: Limit switches
Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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