Coil
Relay coil
The operating element associated with a relay and its separately drawn contacts.
Schematic
IEC · Q020402
Two-way linear-motion qualifier
This qualifier identifies motion or force in both directions along a linear path.
IEC · Two-way linear-motion qualifier
Autodesk IEC-60617 Symbol Preview — Linear force and motion qualifiers; vendor family reference, not certified IEC geometry or database identifier.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic · Q020402
What it represents
This qualifier identifies motion or force in both directions along a linear path. Opposite directions of travel belong to one linear movement relationship. Separate contacts or sensors may identify each end of travel or an intermediate position.
A control schematic should relate forward/reverse or extend/retract commands to the same mechanism tag. Limit positions and interlocks are described by their own elements.
How to read it
- Document the operated mechanism and its limit or rest positions.
- Bidirectional motion does not imply simultaneous motion in both directions.
Information to show or reference
- Identify the associated device, circuit or diagram boundary.
- Document the operated mechanism and its limit or rest positions.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.
A distinction that matters
Bidirectional motion does not imply simultaneous motion in both directions.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEC-60617 preview: Linear force and motion qualifiers
Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content.
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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