Why is the web guide hunting?
Gain may be too high, the sensor may be noisy, or mechanical backlash may be present.
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Web Guiding System Troubleshooting Guide
Most guiding issues can be traced to sensor setup, actuator movement, control direction, or machine mechanics.
Common symptoms
- Web oscillates or hunts around the target position.
- Controller responds slowly or overcorrects.
- Sensor signal is unstable or loses the edge.
- Actuator moves in the wrong direction.
- Material wrinkles or shifts after correction.
What to check first
Verify sensor alignment, clean the sensing area, confirm control direction, check actuator stroke, and inspect web tension before changing controller parameters.
Related KRD products
FAQ
Why does the actuator move the wrong way?
The correction direction may be reversed in wiring or controller settings.
Why does the sensor lose the edge?
The material may be transparent, reflective, dusty, or outside the sensor range.
Contact KRD Automation for a customized solution
Describe the symptom and share photos of your sensor and guide frame layout.