Technical Specifications 24VDC power supply, multi-channel dry contact input. Operating temperature: -40℃ ~ +70℃, built-in debounce filter.
Functional Features Switch status cyclic scanning, contact bounce filtering, wire break fault detection, status data upload through backplane bus.
Application Scenarios Prime mover safety interlock logic, start-stop sequence control, fault and alarm contact monitoring.
Performance Parameters Fast response speed, reliable contact identification, built-in surge protection per channel.
Structural Characteristics Rack pluggable module, individual LED status indicator for each input channel.
Working Principle Each input channel detects the on-off condition of external contacts. After debounce filtering, valid status data is transmitted to the main processor.
Installation Requirements Install in designated slots of the 9907 rack, separate signal cables from high-voltage power cables.
Usage Notes Verify interlock functions after module replacement, prevent high voltage from invading input channels.
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