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Question
Our Photoelectric Sensors malfunction when the power supply of an inverter motor or other equipment is switched ON or OFF. What's causing this, and what can we do to resolve it?
Answer
It's possible that the malfunction is due to electrical noise. Try a countermeasure for noise. Different countermeasures should be used depending on factors such as the path of noise entry, the frequency component, and the peak value.
Typical countermeasures for various types of noise are shown in the following table.
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