# SCU6x Controller Center Guiding One Sensor > Understanding Sensor Orientation and Edge Guiding with the SCU6x ControllerIn this episode, we dive into the functionality of the SCU6x Controller with a focus on sensor orientation and edge guiding. You'll learn how to enable a sensor in center orientation mode, which allows it to detect both ed... **Last updated:** 2026-03-03 **Source:** https://live-roll2roll.pantheonsite.io/videos/scu6x-controller-center-guiding-one-sensor --- Understanding Sensor Orientation and Edge Guiding with the SCU6x Controller In this episode, we dive into the functionality of the SCU6x Controller with a focus on sensor orientation and edge guiding. You'll learn how to enable a sensor in center orientation mode, which allows it to detect both edges of the web. The green line in the middle signifies the sensor's center position, crucial for center guiding. We also explore how switching to left or right modes adjusts the reference edge used for guiding, highlighting the controller's automatic detection and response to these settings. Understanding these configurations will help you effectively manage web positioning and improve operational efficiency. 00:00 Introduction to Sensor Configuration 00:16 Understanding the Center Orientation 00:48 Center Guiding Explained 01:02 Controller Modes and Edge Detection 01:29 Practical Examples of Edge Detection 02:12 Configuring Orientation for Guiding ## Transcript I'm going to disable it and enable this sensor but I'm going to do a center orientation for that this means that we have a a sensor that is wide enough that it can see both edges of the we the first thing that you're going to notice is that there is a green line in the middle and that line is indicating the center position um off that sensor and when we present the web here then you're going to see both edges so that means that the left side is dark the right side is dark the middle region which represents the web is going to be white and then the green line is the center line of the we and that's what it's showing there it's being mov from left door so when we do Center guiding the reference or the edge position for that guiding is indicated by this green line right there so in this case in Center the controller automatically knows that if you set it in Center mode then it needs to look at the middle position of the WB and if we put it back to left mode it's going to look at the left Edge and the green line is still there and it's kind of hard to see but it's at the leftmost point of the white region and that's what we call as um The Edge position so this is what is used for control now you rest respect to of what we have it doesn't change my Edge position and also notice that I only have one edge of the web or I have both edges of the web break here but it's only looking at the left Edge so when I have this uh small piece of paper where I see both edges if it is configured for the left Edge it will only pick up the left Edge and if I do Center you can see both edges and if I do right it'll only pick up the rage and that's how it works so it doesn't matter if the web is wide enough or wider than the sensor field of you how we configure the orientation will dictate what Edge the is used for guiding or uh control purposes ## Related Products - SCU6x **Tags:** SCU6x --- ## 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