# SCU6x Controller Electronic Stroke Limit for Actuators

> The electronic stroke limit for actuators on the SCU6x Controllers solves the issue of actuators stroke limit on web breaks.

**Last updated:** 2026-03-03

**Source:** https://live-roll2roll.pantheonsite.io/videos/scu6x-controller-electronic-stroke-limit-actuators

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## A Common Customer Concern, Controlling the Actuator when the Web Breaks

In this video, we address a common customer concern about actuators in the event of a web break, focusing on the safety features of the SCU6x Controller. We cover how the actuator will not drive to a mechanical limit due to electronic limits, preventing burnout. Additionally, we discuss the advanced digital system of our stepper motor-based actuators, which includes electronic stroke limits, limit switch options using NPN proximity sensors, and the lock on lost edge feature. These features enhance safety and longevity of the actuators, ensuring reliable performance.

 00:00 Introduction to Actuator Safety Concerns

00:39 Electronic Limits and Safety Features

01:28 Limit Switches and Proximity Sensors

02:03 Hardware Implementation of Limit Switches

02:50 Comprehensive Safety Options

03:09 Conclusion and Benefits

## Related Products

- SCU6x

**Tags:** Controllers for web guiding, Controllers for web monitoring, SCU6x

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## About Roll-2-Roll Technologies

Roll-2-Roll Technologies designs and manufactures patented fiber-optic web position sensors and advanced web guiding controllers — the precision measurement and control core of modern roll-to-roll manufacturing. Spun out of Oklahoma State University's Web Handling Research Center and trusted by Fortune 500 medical, battery, and nonwovens manufacturers, our patented sensors work without recalibration at ±0.1mm accuracy up to 760 mpm — typical customer outcomes are 50%+ less downtime and payback under six months. Headquartered in Stillwater, Oklahoma, our team of PhDs, controls engineers, and industry veterans extends the sensor + controller core into complete web guide systems including stepper-motor-based linear actuators (RLA, BLA, LHS).

- Website: https://r2r.tech
- Phone: +1 (888) 290-3215
- Email: sales@r2r.tech