Multi-turn Absolute Encoders

Select multi-turn absolute encoders by retained turn range, within-turn resolution, interface and mechanical travel.

CATEGORY OVERVIEW

A multi-turn absolute encoder reports both the angular position within one revolution and the number of completed revolutions. It is used for winches, screws, long axes and geared motion that must retain position across multiple turns. Required turn capacity, overflow behavior and retention technology must be confirmed.

SELECTION CHECKLIST

Calculate total encoder-shaft revolutions including gearing, setup movement and overtravel.

Define the smallest angular or linear movement the controller must distinguish.

Confirm mechanical, electronic or other specified multi-turn retention behavior.

Match turn count, position scaling, register or frame layout and controller limits.

PRODUCT OPTIONS

Battery-free IP54 geared turn counting retains absolute position through power loss.

Single-turn or battery-free mechanical multi-turn absolute position feedback with power-off memory and programmable Modbus RTU parameters.

Stainless-steel IP68 absolute feedback for washdown and outdoor machinery.

CATEGORY QUESTIONS

Choose a range greater than the maximum possible encoder-shaft turns, including a suitable overtravel margin.

No. Designs include mechanical geared counting and other technologies; verify the specific model principle.

TECHNICAL SELECTION

Include measurement, interface, supply, mechanics, environment, documentation and quantity.