Technical Specifications Output Signal Type: Discrete relay digital output Channel Quantity: 16 isolated output channels Field‑to‑Backplane Isolation: Group electrical isolation protection Backplane Interface: Series 90‑70 high‑speed backplane bus Operating Power: Powered by 90‑70 rack backplane Operating Temperature: ‑40 ℃ to +70 ℃ Storage Temperature: ‑50 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Mechanical Dimension: Single‑slot module for GE 90‑70 rack Certifications: CE, UL industrial control compliance
Functional Features 16‑channel relay discrete output for field actuator equipment control. Group electrical isolation protects PLC internal circuit from field surge impact. Front‑panel LED lamps display real‑time on‑off status for each output channel. Receives control logic commands from main CPU via backplane bus. Hardware diagnosis function uploads channel fault status information to controller.
Application Scenarios On‑off actuator control for chemical, petrochemical process‑control system. Relay and solenoid valve driving for metallurgy industrial automation equipment. Discrete output signal control for power plant auxiliary control system.
Structural Characteristics Standard single‑slot plug‑in mechanical structure matching GE 90‑70 rack. Front‑panel LED status indicators for each output channel. Front‑side terminal block for field load equipment wiring. Backplane golden‑finger interface for backplane bus data and power access.
Working Principle Control commands from 90‑70 CPU are transmitted to module through rack backplane bus. Internal circuit drives corresponding relay contacts to act, completing switch‑on and switch‑off operation for field load circuits. Isolation barrier separates field high‑energy load side from PLC internal logic circuit.
Installation Requirements Insert module into available slot of GE Series 90‑70 standard rack. Rack protective grounding must comply with official system grounding specification. Field load wiring shall match load current requirement with appropriate cable specification. Verify field load parameters are within module rated range before power‑on operation. Ambient operating environment shall keep within defined temperature and humidity range without condensed moisture. contact.
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