Technical Specifications 24VDC control power; multi-channel isolated relay contact outputs; surge suppression circuit for contact terminals. Operating temperature: -40℃ ~ +85℃.
Functional Features Isolated relay contact output; equipment interlock and alarm signal transmission; relay channel fault diagnosis; contact surge protection.
Application Scenarios Steam turbine, gas engine and large genset safety interlock and alarm control cabinets.
Performance Parameters High isolation voltage between control side and field side, stable contact switching performance, long rated service life.
Structural Characteristics Rack pluggable PCB assembly, integrated relay group, dedicated screw terminal blocks for wiring.
Working Principle The board receives digital control commands sent by the main processor. Internal relays are energized or de-energized to switch dry contact status, realizing on-off control of field equipment and alarm loops.
Installation Requirements Keep high-power load wiring separated from weak control signal wiring to reduce electromagnetic interference.
Usage Notes Do not exceed rated voltage and current of relay contacts; check contact wear regularly during overhaul.
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