# SCU6x Controller   Heartbeat Indicator

> Heartbeat LED Indicator in the SCU6x Controller: Your Troubleshooting Companion This video dives into the critical Heartbeat LED indicator found in the SCU6x controller. Learn how this small light plays a major role in monitoring the health of your system and aiding in troubleshooting. We'll expl...

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

**Source:** https://r2r.tech/videos/scu6x-controller-heartbeat-indicator

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Heartbeat LED Indicator in the SCU6x Controller: Your Troubleshooting Companion This video dives into the critical Heartbeat LED indicator found in the SCU6x controller. Learn how this small light plays a major role in monitoring the health of your system and aiding in troubleshooting. We'll explore: Heartbeat LED Location: Find the Heartbeat LED on your SCU6x controller. Blinking Pattern and Meaning: Understand what the blinking red and green (or green and no light) pattern signifies. Communication Status: Discover how the Heartbeat LED reflects the communication between the motherboard and the operator interface. Troubleshooting Aid: See how the absence of the Heartbeat LED's blinking can pinpoint issues with the touchscreen or communication. Don't overlook this simple yet essential indicator! The Heartbeat LED is your first line of defense when troubleshooting your SCU6x controller.

## Related Products

- SCU6x

**Tags:** SCU6x

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## About Roll-2-Roll Technologies

Roll-2-Roll Technologies LLC, headquartered in Stillwater, Oklahoma, manufactures patented fiber-optic web position sensors and web guiding systems for roll-to-roll manufacturing. Products include ODC edge sensors (48mm to 960mm), 1DC all-in-one sensors, SCU-series controllers, and complete web guide systems.

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