GE IS200AEADH1A Analog Output Module
1. IS200AEADH1A Product Overview
GE IS200AEADH1A is a high-stability analog output module customized for GE’s Mark VIe distributed control system (DCS), widely applied in power generation, petrochemical, and industrial automation fields. Acting as a “command executor” between the DCS controller and on-site actuators, it converts digital control signals from the controller into continuous analog signals (like 4-20mA or 0-10V) to drive devices such as control valves, variable-speed motors, and regulators—ensuring precise control of industrial processes.
Its core function is straightforward: When the Mark VIe controller sends a digital command (e.g., “open the control valve to 50%”), the IS200AEADH1A translates this command into a corresponding analog signal (12mA for 50% opening) and transmits it to the valve actuator. The actuator then adjusts its position based on this signal to meet the process requirement. For example, in a steam turbine system, the module receives a pressure control command from the controller and sends an analog signal to the steam valve, adjusting the valve opening to maintain stable steam pressure.
Key advantages that make it reliable in industrial control loops:
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Precise Control Performance: Features ±0.1% full-scale accuracy and low signal drift (less than 0.01% per year), ensuring consistent actuator control even in long-term operation—critical for processes requiring stable parameters like chemical reactions.
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Adequate Control Channels: Equipped with 8 independent analog output channels, it can drive 8 actuators simultaneously, reducing the number of modules needed and saving control cabinet space.
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Strong Anti-Interference: Adopts 2500V AC galvanic isolation between channels and the system bus, effectively resisting electrical noise from large equipment like generators or pumps nearby.
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Seamless DCS Compatibility: Plugs directly into the Mark VIe system rack, and works with GE’s ControlST configuration software—no additional adapters or complex programming required for integration.
Practical example: In a coal-fired power plant’s boiler feedwater system, 2 IS200AEADH1A modules control 16 feedwater regulating valves. When the boiler water level drops, the DCS controller sends a command to the module, which then outputs an analog signal to increase the valve opening, boosting feedwater flow to restore the water level to the normal range.
2. IS200AEADH1A Key Technical Specifications
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Specification Category
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Details
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Typical Applications
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Boiler control, turbine auxiliary systems, chemical reaction kettles, and water treatment—controlling valves, motors, and regulators
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Output Configuration
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8 independent analog output channels; each channel is galvanically isolated
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Output Signal Types
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4-20mA DC (load resistance: 0-600Ω); 0-10V DC (load resistance: ≥1kΩ); Selectable per channel
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Performance
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Accuracy: ±0.1% of full scale; Response time: ≤1ms; Signal drift: ≤0.01% FS/year
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Control Interface
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Compatible with Mark VIe backplane bus; Supports hot swapping (replace without system shutdown)
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Power Supply
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24V DC ±10%; Power consumption: ≤8W (full load)
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Protection Features
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Short-circuit protection (each channel); Over-voltage protection (≥30V DC); Reverse polarity protection
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Environmental Conditions
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Operating temperature: 0℃–60℃; Relative humidity: 5%–95% (no condensation); Protection class: IP20
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Physical Specifications
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Dimensions: 160mm×100mm×35mm (L×W×H); Weight: ~400g; Mounting: Mark VIe standard rack
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Certifications
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UL, CE, IEC 61010, ISO 9001
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3. IS200AEADH1A System Integration Guide
IS200AEADH1A is a key “command conversion unit” in the Mark VIe control system. Integrating it only requires matching with the DCS controller, field actuators, and power supply, following simple steps and industrial safety rules:
3.1 Integration Steps (with Safety Tips)
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System Shutdown & Isolation: Stop the related production process, cut off the power supply of the Mark VIe rack, and hang a “No Operation” sign to prevent accidental startup during integration.
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Module Installation: Insert the IS200AEADH1A into the designated I/O slot of the Mark VIe rack until it clicks. Ensure the golden finger connector at the bottom of the module fully contacts the rack backplane to avoid communication failures.
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Wiring Connections: Connect field actuators (e.g., control valves) to the “AO” terminals of the module—for 4-20mA signals, strictly match the positive (+) and negative (-) poles.
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Link the 24V DC power cable to the module’s power terminal, and confirm the polarity is correct (wrong polarity will damage the module).
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Use shielded cables for wiring in noisy environments (e.g., near inverters), and connect the shield layer to the ground terminal of the module to enhance anti-interference ability.
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Parameter Configuration: Use GE ControlST software to complete simple settings: Define each channel’s signal type (e.g., set Channel 1-4 to 4-20mA for valve control, Channel 5-8 to 0-10V for motor speed control).
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Set signal range correspondence (e.g., 4mA = valve fully closed, 20mA = valve fully open; 0V = motor stop, 10V = motor full speed).
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Configure fault alarm functions (e.g., trigger an alarm if the output current exceeds 22mA, indicating a short circuit).
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Test & Verification: Restore the rack power, and check that the module’s power LED is green (indicating normal power supply).
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Send a fixed command via the DCS (e.g., “Channel 1 output 12mA”), and use a multimeter to measure the terminal current—confirm it is 12mA ±0.012mA.
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Operate the DCS to adjust the output signal from 4mA to 20mA, and observe if the actuator (e.g., control valve) moves smoothly from fully closed to fully open.
3.2 Daily Maintenance Tips
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Daily Check: Monitor the module’s channel LEDs (green = normal output, red = fault) and the DCS HMI—ensure the actuator status matches the output signal.
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Monthly Inspection: Open the control cabinet (after power off if necessary), check whether the module wiring terminals are loose (vibration is the main cause of loosening), and tighten them with a screwdriver.
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Quarterly Calibration: Use a standard signal calibrator to test each channel’s output accuracy. If the deviation exceeds ±0.1%, adjust the software parameters or replace the module.
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Fault Troubleshooting: If an actuator fails to respond, first use a multimeter to test the module’s output signal. If there is no signal, check the wiring or module; if the signal is normal, the actuator itself may be faulty.
4. Recommended GE Related Models (Different Series)
GE provides a variety of industrial control modules for different scenarios. Below are practical models from other GE series to meet diverse system needs:
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Model
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Series
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Key Features & Application Scenarios
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GE IS210AEBIH3BEC
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Mark VIe Analog I/O
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Precision analog input module. Collects temperature, pressure, and flow signals from sensors, providing data support for the IS200AEADH1A’s control commands—ideal for closed-loop control systems.
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GE IC695CPU315
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RX3i
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General-purpose PLC CPU module. Suitable for controlling small-scale auxiliary systems (e.g., pump stations) with its 1.2GHz dual-core processor, matching the IS200AEADH1A for signal output.
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GE DS200TCQCG1BGF
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Mark VI Turbine Control
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Specialized turbine control module. Cooperates with the IS200AEADH1A to control turbine fuel valves and guide vanes, ensuring stable turbine operation in power plants.
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GE IS420ESWBH2A
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Mark VIe Digital I/O
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16-channel digital input module. Monitors the on/off status of actuator limit switches (e.g., valve fully open/closed sensors) and sends signals to the DCS for interlock control.
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GE IC698CPE030
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PACSystems RXi
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Ruggedized controller with IP67 protection. Suitable for outdoor or harsh environment applications (e.g., offshore oil platforms), driving the IS200AEADH1A to control on-site equipment.
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GE IC695PSD040
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RX3i Power Supply
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Redundant power supply module. Provides stable 24V DC power for the IS200AEADH1A and other modules, avoiding control failures caused by power fluctuations.
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GE DS200TCCAG1A
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Mark VI Turbine I/O
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High-density digital I/O module. Expands the DCS’s digital control capabilities, coordinating with the IS200AEADH1A to manage multiple turbine accessories (e.g., lubricating oil valves).
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