Technical Specifications 24VDC power supply, multi-channel dry contact input. Operating temperature: -40℃ ~ +70℃, built-in debounce filter.
Functional Features Switch status scanning, contact bounce filtering, wire break detection, status data transmission.
Application Scenarios Prime mover safety interlock, start-stop sequence logic, fault and alarm contact monitoring.
Performance Parameters Fast response speed, reliable contact identification, surge protection for each channel.
Structural Characteristics Rack pluggable module, individual LED indicator for each input channel.
Working Principle The module cyclically scans all input channels, filters unstable jitter signals generated by mechanical contact bounce, and uploads confirmed switch status to the main processor.
Installation Requirements Install in designated slots of the 9908 rack, keep signal cables away from high voltage power cables.
Usage Notes Verify interlock function after module replacement, prevent high voltage from invading input channels.
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