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Product Overview
The GE IC694ALG221 is a high-precision 4-channel differential analog input module designed for the GE Fanuc RX3i PACSystem, a leading platform in industrial automation. Engineered to convert analog sensor signals into digital data for PLC processing, the GE IC694ALG221 supports input ranges of 4–20 mA (default) and 0–20 mA, with a 12-bit resolution and 2 ms update rate. This configuration ensures accurate real-time monitoring of process variables such as pressure, temperature, and flow in manufacturing, energy, and water treatment applications.
What distinguishes the GE IC694ALG221 is its optical isolation technology, which safeguards against electromagnetic interference (EMI) and ground loops, critical for maintaining signal integrity in noisy industrial environments. The module’s universal compatibility with any I/O slot in the RX3i backplane simplifies system integration, while its compact design optimizes space in control cabinets. Whether deployed in automotive assembly lines or wastewater treatment plants, the GE IC694ALG221 delivers reliable performance by converting analog signals into actionable data for PLC-driven control logic.
Technical Specifications
| Parameter Name | Parameter Values |
|---|---|
| Product model | IC694ALG221 |
| Manufacturer | GE |
| Product type | 4-channel differential analog input module (PLC I/O module) |
| Input signal range | 4–20 mA (default) or 0–20 mA (configurable via jumpers) |
| Resolution | 12-bit (4 µA/bit at 4–20 mA; 5 µA/bit at 0–20 mA) |
| Update rate | 2 ms (all channels) |
| Accuracy | ±0.1% of full-scale reading + ±0.1% of input signal |
| Isolation | Optical isolation (250 VAC continuous; 1500 VAC for 1 minute) |
| Power consumption | 25 mA @ +5 VDC (backplane); 100 mA @ +24 VDC (isolated) |
| Physical dimensions | 101.6 mm (width) × 152.4 mm (height) × 127 mm (depth) (estimated based on RX3i standards) |
| Weight | 1.0 kg (2.2 lbs) |
| Operating temperature | -10°C to 60°C (-14°F to 140°F) |
| Storage temperature | -40°C to 85°C (-40°F to 185°F) |
| Mounting type | DIN rail (35mm standard) |
| Connector type | Terminal block (20 screws included) |
IC694ALG221
Related Products
- IC694ALG233: A 16-channel voltage input module for low-voltage applications, ideal for systems requiring high-density analog monitoring.
- IC695ALG616: A 16-channel analog input module with HART communication support, suitable for smart sensor integration.
- IC695CPU350: A high-performance CPU module that pairs with the GE IC694ALG221 to execute complex control algorithms.
- IC693PWR330H: A power supply module providing stable +5 VDC and +24 VDC outputs to power the GE IC694ALG221.
- IC694CHS392: A backplane module enabling multi-slot expansion for systems requiring additional I/O capacity.
- IC694MDL645B: A digital input module that works alongside the GE IC694ALG221 for hybrid analog-digital control systems.
- IC695CMM004: A communication module facilitating RS485 or Ethernet connectivity for remote monitoring of the GE IC694ALG221.
- IC694APU305: A special I/O processor module enhancing data processing capabilities for high-speed analog applications.
Main Features and Advantages
The GE IC694ALG221 excels in delivering precise analog-to-digital conversion for industrial automation. Its high-resolution design ensures accurate signal representation, critical for applications like chemical dosing in wastewater treatment, where minor deviations can affect process efficiency. The module’s configurable input ranges eliminate the need for external signal conditioners, reducing hardware costs and simplifying wiring.
Another key advantage is its rugged construction, which withstands extreme temperatures and EMI. With an operating temperature range of -10°C to 60°C, it remains reliable in harsh environments such as oil refineries or outdoor transportation systems. The GE IC694ALG221 also incorporates multiple protection mechanisms, including overvoltage and short-circuit protection, safeguarding both the module and connected equipment from electrical faults.
For maintenance efficiency, the module features LED status indicators that provide real-time feedback on power, signal integrity, and fault conditions. This simplifies troubleshooting and minimizes downtime, a critical benefit for continuous-process industries like food and beverage production. Its DIN rail mount design further enhances ease of installation and replacement, supporting rapid system upgrades or repairs.
IC694ALG221
Application Fields
The GE IC694ALG221 is widely deployed in industries where precise analog monitoring is essential. In manufacturing, it powers robotic welding systems by converting voltage signals from position sensors into digital data for motion control. For example, in automotive plants, the module ensures consistent weld quality by accurately measuring current and voltage fluctuations.
In energy and utilities, the GE IC694ALG221 monitors pressure and flow rates in natural gas pipelines, enabling predictive maintenance to prevent leaks or equipment failures. Its compatibility with smart transmitters makes it suitable for modernizing legacy systems in oil and gas facilities.
The module also plays a vital role in water treatment, where it measures pH levels and chemical concentrations in wastewater. By providing real-time data to PLCs, the GE IC694ALG221 ensures compliance with environmental regulations and optimizes chemical usage to reduce operational costs.
In transportation infrastructure, the module supports traffic management systems by converting analog signals from vehicle detectors into digital commands for traffic light synchronization. Its reliability in outdoor environments ensures seamless operation in varying weather conditions.
Installation and Maintenance
Pre-installation preparations:
Before installing the GE IC694ALG221, verify the input signal type (current) and adjust jumpers to select 4–20 mA or 0–20 mA ranges. Ensure the DIN rail is securely mounted and aligned with the RX3i backplane. Disconnect all power sources to the cabinet to prevent electrical hazards. Clean the mounting area to remove debris that could interfere with heat dissipation.
Before installing the GE IC694ALG221, verify the input signal type (current) and adjust jumpers to select 4–20 mA or 0–20 mA ranges. Ensure the DIN rail is securely mounted and aligned with the RX3i backplane. Disconnect all power sources to the cabinet to prevent electrical hazards. Clean the mounting area to remove debris that could interfere with heat dissipation.
Maintenance suggestions:
Regularly inspect the GE IC694ALG221 for loose terminal connections or physical damage. Use a dry cloth to clean dust from vents, as accumulated debris can cause overheating. Monitor LED indicators for 异常 statuses, such as a flickering “OK” light, which may signal signal loss or power instability. Test the module’s accuracy annually using a calibrated current source to ensure readings align with factory specifications. For long-term storage, keep the module in a dry environment within its specified temperature range to prevent component degradation.
Regularly inspect the GE IC694ALG221 for loose terminal connections or physical damage. Use a dry cloth to clean dust from vents, as accumulated debris can cause overheating. Monitor LED indicators for 异常 statuses, such as a flickering “OK” light, which may signal signal loss or power instability. Test the module’s accuracy annually using a calibrated current source to ensure readings align with factory specifications. For long-term storage, keep the module in a dry environment within its specified temperature range to prevent component degradation.
IC694ALG221
Product Guarantee
Our company offers a one-year quality warranty for the GE IC694ALG221, covering non-human-induced hardware failures. If defects arise, we provide prompt replacement services to minimize downtime. With a 17-year history in industrial control distribution, we maintain a vast inventory of new and discontinued parts, including the GE IC694ALG221, ensuring rapid fulfillment of urgent orders. Our global supply chain network enables efficient sourcing of rare components, supporting customers in maintaining continuous system operations.
For inquiries, contact us via Whatsapp: +86 18859254943 or email: sales@ygplc.com. We are committed to delivering reliable solutions that meet the highest standards of industrial performance.
