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GE IC694ALG220A Analog Input Module
Product Overview
The GE IC694ALG220A is a 4-channel analog input module designed for GE’s RX3i PACSystems, a leading platform in industrial automation. This module is engineered to convert real-world analog signals (such as voltage or current) into digital data that can be processed by PLCs, making it essential for precise control in manufacturing, energy, and process industries. As part of the IC694 Series, the GE IC694ALG220A seamlessly integrates with RX3i backplanes (e.g., IC694CHS790) and works alongside CPUs like the IC694CPU331 to enable advanced monitoring and automation.
The GE IC694ALG220A supports a wide -10 to +10 V DC voltage input range and can be configured for 4–20 mA current signals via terminal jumpers. Each channel offers a 12-bit resolution (5 mV per LSB) and ±10 mV typical accuracy, ensuring reliable measurement of critical parameters like temperature, pressure, and flow rate. Its 4-millisecond update rate allows real-time adjustments in fast-paced industrial environments. The module also features optical isolation (250 V AC continuous) to protect the system from electrical noise and surges, a key advantage in harsh industrial settings.
Designed for flexibility, the GE IC694ALG220A can be installed in any I/O slot of an RX3i rack. It requires an external +24 V DC power supply (connected via the backplane’s TB1 terminal block) for isolated operation. This module is particularly valuable for retrofitting legacy systems, as it maintains full compatibility with GE’s Series 90-70 and earlier platforms while leveraging the RX3i’s modern communication capabilities.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | IC694ALG220A |
| Manufacturer | GE |
| Product Type | 4-Channel Analog Input Module (RX3i PACSystems) |
| Input Range | Voltage: -10 to +10 V DC; Current: 4–20 mA (via jumper configuration) |
| Resolution | 12-bit (5 mV per LSB for voltage; 20 µA per LSB for current) |
| Accuracy | ±10 mV (typical) over operating temperature range |
| Update Rate | 4 milliseconds (per channel) |
| Isolation | 250 V AC continuous (field to backplane); 1500 V AC for 1 minute |
| Power Consumption | 27 mA @ +5 V DC (backplane); 98 mA @ +24 V DC (isolated) |
| Physical Dimensions | 136 mm (L) × 35 mm (W) × 133 mm (D) |
| Weight | 0.445 kg |
| Operating Temperature | 0°C to 60°C |
| Humidity Tolerance | 5%–95% (non-condensing) |
| Mounting Type | RX3i backplane mount (any I/O slot) |
IC694ALG220A
Related Products
- GE IC694ALG223: A 16-channel analog input module optimized for high-density applications. It shares the same voltage/current input capabilities as the IC694ALG220A but offers four times the channel count, ideal for large-scale process monitoring.
- GE IC694ALG442: A mixed analog I/O module with 4 inputs and 2 outputs. It complements the IC694ALG220A in systems requiring both signal acquisition and control, such as closed-loop feedback systems.
- GE IC694MDL645A: A 16-point digital input module that works alongside the IC694ALG220A to integrate analog and discrete signals in hybrid automation setups.
- GE IC694CPU331: A high-performance CPU for RX3i systems. It processes data from the IC694ALG220A to execute complex control logic in manufacturing and energy plants.
- GE IC694CHS790: A 9-slot backplane that provides mechanical and electrical support for the IC694ALG220A and other RX3i modules, ensuring stable power distribution and communication.
- GE IC694ALG392: An 8-channel analog output module that pairs with the IC694ALG220A to create complete analog control loops, such as adjusting valve positions based on sensor readings.
Main features and advantages
High-precision signal acquisition: The IC694ALG220A delivers 12-bit resolution and ±10 mV accuracy, making it suitable for applications where even minor deviations can impact product quality or system safety. For example, it accurately measures temperature in chemical reactors to prevent overheating.
Flexible input configuration: The module supports both voltage (-10 to +10 V DC) and current (4–20 mA) inputs via simple terminal jumpers. This eliminates the need for external signal converters, reducing hardware costs and complexity in systems like water treatment plants.
Robust isolation and noise immunity: Optical isolation (250 V AC continuous) protects the PLC from ground loops and electromagnetic interference (EMI), ensuring reliable operation in noisy environments like automotive assembly lines or power generation facilities.
Fast update rate: With a 4-millisecond update rate, the IC694ALG220A enables real-time adjustments in dynamic processes, such as regulating flow rates in oil refineries or optimizing motor speeds in conveyor systems.
Easy integration: The module fits seamlessly into any I/O slot of RX3i backplanes, requiring only a +24 V DC power supply and shielded twisted-pair cables for field connections. This simplifies retrofits in legacy systems, allowing businesses to modernize without replacing entire infrastructures.
Wide temperature range: Operating reliably from 0°C to 60°C, the IC694ALG220A withstands extreme conditions in outdoor applications, such as monitoring pipeline pressures in cold climates or managing heat in steel mills.
IC694ALG220A
Installation and maintenance
Pre-installation preparations: Verify compatibility with your RX3i backplane (e.g., IC694CHS790) and ensure an available I/O slot. Power off the system and disconnect all power sources. Align the IC694ALG220A with the slot and push firmly until it clicks into place. Connect the +24 V DC power cable to the backplane’s TB1 terminal block, ensuring proper polarity. Use shielded twisted-pair cables for analog signals, grounding the shield to either the module’s COM or GND terminal to minimize noise.
Maintenance suggestions: Inspect the IC694ALG220A quarterly for loose connections or physical damage. Clean dust from vents using a dry cloth to prevent overheating. If the module’s status LED indicates a fault, power off the system and reseat the module. For persistent issues, replace it with a spare from your inventory. Store spare modules in a dry, cool environment (10–30°C) to maintain their integrity. Regularly calibrate the module using GE’s Proficy Machine Edition software to ensure accuracy over time.
Application fields
The GE IC694ALG220A excels in industries where precise analog signal processing is critical:
- Manufacturing: In automotive plants, it measures pressure in hydraulic systems (via 4–20 mA sensors) to control robotic arm movements, ensuring consistent weld quality. Its fast update rate supports real-time adjustments during high-speed production runs.
- Chemical processing: The module monitors temperature and pH levels in reactors (using -10 to +10 V sensors), enabling closed-loop control to maintain optimal reaction conditions and prevent hazardous deviations.
- Energy: In power plants, it tracks steam pressure and turbine vibration (via voltage inputs) to predict equipment failures and schedule maintenance proactively, reducing downtime.
- Water treatment: The IC694ALG220A integrates with flow meters and level sensors (4–20 mA) to automate pump operations, ensuring efficient water distribution while complying with environmental regulations.
- Material handling: In warehouses, it measures conveyor belt tension (via voltage signals) to adjust motor speeds, preventing belt slippage and optimizing package sorting accuracy.
IC694ALG220A
Product guarantee
Our company offers a one-year quality warranty for the IC694ALG220A, covering hardware malfunctions unrelated to misuse or improper installation. During the warranty period, we provide free replacement for modules exhibiting performance issues. For urgent or discontinued models, our global supply chain network ensures rapid delivery of scarce parts, minimizing downtime for critical systems.
Established in 2007, our company is a leading industrial control distributor specializing in hard-to-find and obsolete industrial automation parts. We maintain a vast inventory of GE, ABB, and Rockwell components, including the IC694ALG220A, to meet immediate customer needs. Our expertise in sourcing discontinued models and providing technical support makes us a trusted partner for industries relying on legacy systems.
For inquiries, contact us via WhatsApp at +86 18859254943 or email at sales@ygplc.com. We offer competitive pricing and flexible logistics solutions to ensure seamless procurement of the IC694ALG220A and other industrial control modules.
