# SCU6x Controller Web Detect and Web Break Detection and Actuator Response

> we introduce and explain the automatic web detect signal feature of the SCU6x Controller. It ensures that the actuator stops moving when the web breaks

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

**Source:** https://live-roll2roll.pantheonsite.io/videos/scu6x-controller-web-detect-and-web-break-detection-and-actuator-response

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In this video, we introduce and explain the automatic web detect signal feature of the SCU6x Controller. This functionality ensures that the actuator stops moving when the web breaks, even in automatic mode. The video illustrates how the actuator guides the web back and forth and demonstrates the lock on lost edge feature, which holds the actuator's position if no web is detected. This feature is crucial for preventing disruptions in operations when re-threading the web. Join us as we dive deep into how this innovative feature works and its benefits for maintaining smooth operations.

00:00 Introduction to Automatic Web Detect Signal
00:23 Illustration of Web Guiding and Actuator Position
00:37 Lock on Lost Edge Functionality
00:56 Web Break Detection and Actuator Response

## 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