Technical Specifications Multiple relay output channels, screw terminal blocks for field wiring, backplane connector for system bus, rack power supply.
Functional Features Converts internal control signals into relay contact outputs for trip, alarm and interlock signals, provides signal terminals for field connection.
Application Scenarios Power plant gas turbine and steam turbine Mark V control cabinet, safety interlock and trip circuit.
Performance Parameters Reliable relay contact action, channel status monitoring, long service life for critical safety circuits.
Structural Characteristics Rack plug-in board with terminal block assembly, backplane edge connector, multiple relay components on PCB.
Working Principle Receives control signals from processor board via backplane, drives on-board relays to switch field contact circuits for alarm or trip functions.
Installation Requirements Insert into assigned rack slot, connect field wiring to terminal blocks, verify relay wiring before commissioning.
Usage Notes High voltage may exist on field terminals. De-energize field circuit before wiring maintenance.
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