Product Short Description
Product Brief: Standard digital input module designed for Ovation DCS platform, used to acquire discrete on/off field signals from industrial site sensors and switches.
Technical Specifications:
- Operating Voltage: 24 VDC nominal
Description
- Input Channel Quantity: 16 isolated digital input channels
- Input Signal Type: Dry contact / Wet contact compatible
- Operating Temperature Range: 0 °C to +60 °C
- Storage Temperature Range: -40 °C to +85 °C
- Relative Humidity: 5% ~ 95% non-condensing
- Response Time: ≤ 1 ms per channel
Functional Features:
- Galvanic isolation for each individual input channel
- On-board LED status indicator for channel state diagnosis
- Signal filtering circuit to suppress field electromagnetic interference
- Hot-swappable design for online replacement without system shutdown
- Supports fault self-diagnosis and signal loss alarm
Performance Parameters:
- Isolation Voltage: 1500 VAC between channel and backplane
- Input Current: 2.5 mA typical per channel
- Maximum Switching Frequency: 100 Hz
- Backplane Bus Communication Rate: 1 Mbps
Material Composition:
- Housing: High-strength flame-retardant ABS plastic, UL94 V0 grade
- Circuit Board: FR-4 glass epoxy printed circuit board (PCB)
- Terminal Block: Nylon insulating material with copper alloy conductive terminals
Structural Characteristics:
- Standard 3U rack-mount structure
- Integrated front panel with status LED array
- Rear golden finger connector for backplane bus connection
- Side locking mechanism for firm fixation on equipment rack
Working Principle:
Field discrete signals pass through overvoltage protection and EMI filter circuits, then are converted into standard digital logic signals. The module transmits processed data to Ovation DCS controller via backplane bus, and feeds real-time channel status to the upper monitoring system.
Advantages & Highlights:
- High anti-interference capability adapting to harsh industrial electromagnetic environment
- Full channel isolation prevents cross-signal interference
- Long service life and stable continuous operation
- Simplified maintenance with hot-swap function
Applicable Industries: Thermal power generation, chemical industry, petrochemical, water treatment, metallurgy, cement manufacturing
Model Series: Emerson Ovation DCS I/O Module Series
Installation Requirements:
- Install on standard Ovation DCS rack, vertical installation only
- Maintain 20 mm minimum ventilation gap around the module
- Wiring strictly follows signal classification: separate power cable and signal cable
- Torque of terminal wiring screws: 0.8 N·m to 1.2 N·m
Usage Notes:
- Do not apply overrated voltage to input channels
- Keep module away from corrosive gas, dust and liquid splash
- Cut off field power before field wiring operation
- Regularly inspect terminal tightness and LED status
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