Product Short Description
Product Name
ESW I/O Terminal Board, High Density Type 5A
Product Introduction
Standard terminal interface board for GE Mark VIe control system, designed to connect field wiring with main I/O modules. It realizes signal transmission, wiring distribution and circuit protection between on-site equipment and control cabinets.
Description
Model Series
IS420 Series – ESW Terminal Board Family
Technical Specifications
- Operating Voltage: 24 VDC nominal
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: -40 °C to +85 °C
- Relative Humidity: 5% to 95% non-condensing
- Insulation Resistance: ≥100 MΩ
- Dielectric Withstand Voltage: 1500 VAC for 1 minute
Functional Features
- Provides dedicated terminal ports for multi-channel analog and digital signals
- Integrated over-current and surge protection circuits
- Supports hot-swap operation under system running status
- Signal filtering function to suppress electromagnetic interference
- Standard pin definition compatible with full IS420 ESW module series
Performance Parameters
- Channel Quantity: High-density multi-channel layout
- Signal Type Compatibility: Digital input, digital output, analog input, analog output
- Response Time: ≤ 1 ms signal transmission delay
- Electromagnetic Compatibility: Compliant with IEC 61000-6-2, IEC 61000-6-4
Material Composition
- Main substrate: FR-4 flame-retardant printed circuit board (PCB)
- Terminal block: Nylon flame-retardant engineering plastic + tin-plated copper conductive terminals
- Housing: ABS industrial plastic
- Internal components: Industrial-grade resistors, capacitors, transient suppression diodes
Structural Characteristics
- Standard 19-inch rack-mounted structure
- Compact layered layout, integrated wiring terminals on front panel
- Card-edge connector for backplane bus connection
- Fixed locking buckle for anti-loosening and anti-vibration
Working Principle
Field equipment signals are accessed through external wiring terminals, filtered and protected by on-board circuits, then transmitted to the main control module via backplane bus connectors. The board completes signal shunting, conditioning and isolation to ensure stable data interaction between field devices and the control system.
Advantage Highlights
- High integration density, saves cabinet installation space
- Built-in multi-level protection, improves system operation stability
- Unified interface standard, convenient module replacement and maintenance
- Strong anti-interference capability, adapts to harsh industrial electromagnetic environment
Applicable Industries
Thermal power generation, combined cycle power plant, gas turbine control, steam turbine control, petrochemical process control, industrial large-scale mechanical equipment automation
Installation Requirements
- Install in standard industrial control cabinet with 19-inch rack
- Vertical installation only, tilt angle shall not exceed 5°
- Reserve ventilation gap of no less than 20 mm around the module
- Complete wiring connection before power-on operation
Usage Notes
- Strictly prohibit disassembly during power-on state
- Do not use in corrosive gas, dust-heavy and dripping liquid environment
- Conduct static discharge protection before touching the module
- Regularly check terminal wiring tightness to prevent poor contact
- Replace damaged modules with fully matched GE original parts only
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