GE IS200EPSMG2ADC

1. Overview

• Positioning: GE IS200EPSMG2ADC It is designed for signal acquisition and control in critical processes such as medium-voltage/high-voltage power stations, gas turbines, petrochemicals, and metallurgy.
• Operating Environment: Suitable for in-cabinet installation (IP20). The operating temperature ranges from -20 ℃ to +70 ℃, and the storage temperature ranges from -40 ℃ to +85 ℃. It features 1500 V AC isolation between channels and from channels to ground.
• Power Supply: Powered by 24 V DC ±10 % (supplied via the system backplane) and communicates with the upper controller through the backplane bus.

2. Key Technical Parameters

• Number of Input Channels: 8 ~ 16
• Number of Output Channels: 4 ~ 8
• Signal Types: 4-20 mA, 0-10 V, RTD (PT100/PT1000), thermocouples (such as K/J/T)
• Input Accuracy: ±0.1 % FS
• Output Accuracy: ±0.2 % FS
• Response Time: < 100 ms (typical value)
• Isolation Voltage: 1500 V AC (between channels and from channels to ground)
• Operating Temperature: –20 ℃ ~ +70 ℃ (storage temperature: –40 ℃ ~ +85 ℃)
• Protection Class: IP20 (for in-cabinet use)
• Dimensions/Weight: Approximately 160 mm × 100 mm × 30 mm / approximately 0.5 kg
• Communication Interface: Backplane bus (for direct communication with the controller)

3. Product Features

• Compatibility with Multiple Analog Signals: It supports four major types of analog signals (current, voltage, RTD, and thermocouple) at one time, simplifying on-site wiring.
• High Precision and Fast Response: With an input error of only ±0.1 % FS, an output error of ±0.2 % FS, and a response time of < 100 ms, it meets the requirements of high-speed process control.
• Strong Isolation Protection: 1500 V AC isolation prevents noise coupling and fault propagation, improving system reliability.
• Modular Design: Models with different numbers of channels can be selected according to on-site needs, facilitating system expansion.
• Wide Temperature Operating Range: Suitable for harsh industrial environments and supports long-term operation under extreme temperatures.
• Backplane Power Supply and Communication: No additional power cables are required, simplifying installation; the backplane bus enables high-speed and reliable data interaction.

4. Structure and Composition

• Front-end Signal Acquisition Unit: Includes current/voltage input circuits and RTD/thermocouple preamplifiers.
• Isolation and Protection Circuits: Each channel is equipped with optocoupler or magnetic coupler isolation, providing 1500 V AC isolation.
• Digital Conversion and Processing Chip: High-resolution ADC and DAC to realize analog-digital-analog closed loop.
• Backplane Interface: Standardized backplane connector, compatible with the bus protocol of GE control systems.
• Power Management Module: Provides 24 V DC power supply voltage stabilization, monitoring, and fault detection.
• Cabinet Installation Structure: Modular card slot design, facilitating quick plugging and replacement.

5. Typical Application Fields

• Gas Turbine Control: Monitors key parameters such as combustion chamber temperature, exhaust temperature, and fuel pressure to ensure safe and efficient operation.
• Power Station Process Monitoring: Conducts multi-point acquisition of voltage, current, temperature, pressure, etc., for real-time monitoring of equipment such as generator sets and transformers.
• Petrochemical and Chemical Industry: Performs acquisition and closed-loop control of process variables (flow, temperature, pressure).
• Metallurgy and Iron and Steel Industry: Collects high-temperature thermocouple signals and cooperates with furnace temperature control systems.
• Building Automation: Used for analog input and output in HVAC and energy management systems.

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