Mitsubishi Electric · MELSEC iQ-R I/O Module
Incorrect input data is received due to chattering when a device with a high input response speed is connected to a contact output module. The rapid, transient fluctuations from contact bounce are interpreted as multiple, unstable input signals, leading to erroneous data processing.
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Replace the contact output module with a transistor output module when interfacing with devices that have a high input response speed to mitigate chattering effects.