# Crank-operation qualifier

Canonical URL: https://eloragrid.ai/symbols/iec-crank-operation-qualifier
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: Q021214
Drawing use: Schematic
Reference families: IEC, Manufacturer

## Symbol convention

Convention: IEC
Form: Crank-operation qualifier
Autodesk IEC-60617 Symbol Preview — Operating-device and function qualifiers; vendor family reference, not certified IEC geometry or database identifier.

This qualifier identifies manual operation through a crank mechanism.

## What it represents

This qualifier identifies manual operation through a crank mechanism. A crank supplies manual mechanical movement to a mechanism that may require several turns or a particular travel. Its role is different from a momentary electrical command to a motor drive.
The schematic records the operating method; the equipment instructions describe actual travel and operating procedure. Indicate any separate position switch rather than assuming the crank mark includes feedback.

## How to read it

- Document the mechanism being moved and its travel or operating positions.
- A crank-operated mechanism is not automatically a motor-driven mechanism.

## Information to show or reference

- Identify the associated device, circuit or diagram boundary.
- Document the mechanism being moved and its travel or operating positions.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.

## Important distinction

A crank-operated mechanism is not automatically a motor-driven mechanism.

## Facts

- Reference scope: Specific public IEC-context family form
- Publisher reference token: Q021214 (Autodesk token; not a verified IEC database ID)
- Information added: Document the mechanism being moved and its travel or operating positions.
- Preview: Independent educational concept; consult the publisher and applicable standard for the exact graphic

## Public references

- [Autodesk IEC-60617 preview: Operating-device and function qualifiers](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-3598E18D-9F8A-48CE-83D0-4CEBA0AE869C.htm) — Autodesk. Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.