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GE IC670ALG630 Field Control Thermocouple Input Module
Product Overview
The GE IC670ALG630 is a high-precision 8-channel thermocouple input module designed for GE Fanuc’s Field Control Series, a robust platform for industrial automation and process control. As part of the IC670 Series, this module bridges analog temperature sensors (e.g., K, J, T type thermocouples) with digital control systems, converting millivolt signals into 12-bit digital data for PLCs or SCADA systems. Its self-calibration capability ensures accurate readings over time, while cold junction compensation eliminates errors caused by ambient temperature fluctuations 1.
Equipped with dual data acquisition rates (50 Hz/60 Hz) and individual channel configuration, the IC670ALG630 supports real-time monitoring of critical processes such as steam turbine temperature profiling, chemical reactor heat management, and boiler combustion control. Each channel can be programmed to report millivolt ranges or linearized temperature values (°C/°F), with configurable high/low alarm thresholds to flag 异常 conditions like open circuits or signal overrange 1. The module interfaces seamlessly with Genius Bus Interface Units (BIUs) such as the IC670GBI002, enabling seamless data integration with host systems while reducing wiring complexity by up to 30% 7.
In automation workflows, the IC670ALG630 enhances system reliability by providing actionable diagnostics. Its rugged design (0°C to 60°C operating range, 5%–95% non-condensing humidity) ensures durability in harsh environments, while 1500 VAC isolation protects against electrical noise and transient spikes 1. Though discontinued by GE, this module remains a cornerstone for maintaining legacy Field Control systems, offering cost-effective retrofitting solutions in industries like oil refining, power generation, and water treatment. By combining precision measurement, advanced fault detection, and broad compatibility, the GE IC670ALG630 extends the operational lifespan of industrial infrastructure while minimizing downtime.
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | IC670ALG630 |
| Manufacturer | GE |
| Product Type | Thermocouple Input Module (Field Control Series) |
| Series | IC670 (Field Control I/O) |
| Input Channels | 8 single-ended (configurable for thermocouples or millivolt signals) |
| Digital Resolution | 12 bits |
| Conversion Time | 60 microseconds per channel |
| Power Supply | 24 VDC (±10%) |
| Isolation | 1500 VAC for 1 minute, 250 VAC continuous |
| Physical Dimensions | 135 mm (L) × 66 mm (W) × 30 mm (D) |
| Weight | 230 grams |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Tolerance | 5%–95% (non-condensing) |
| Certifications | CE |
| Bus Interface | Genius Bus via BIU (e.g., IC670GBI002) |
| Cold Junction Compensation | Automatic (±0.5°C accuracy) |
| Alarm Features | Open circuit detection, overrange fault protection |
Main Features and Advantages
High-precision temperature measurement:
The IC670ALG630’s 12-bit resolution and 5.0 µA sensitivity enable accurate monitoring of temperature variations in critical applications, such as maintaining optimal heat distribution in steel rolling mills or detecting thermal anomalies in pharmaceutical reactors. Its self-calibration function reduces manual adjustments, ensuring consistent performance over extended periods 1.
Intelligent fault management:
Built-in diagnostics continuously monitor for open thermocouples, signal overrange, and ground faults, triggering alerts to prevent process disruptions. For example, in a power plant, the module can detect a faulty thermocouple in a steam turbine’s exhaust system, prompting immediate maintenance to avoid cascading equipment failures 1.
Flexible configuration:
Each channel supports multiple thermocouple types (K, J, T, E, R, S, B) and millivolt ranges, allowing seamless integration with diverse sensor networks. Users can program individual alarm levels and select between 50 Hz/60 Hz data acquisition rates to align with regional power standards 1.
Space-saving modular design:
By integrating terminal blocks directly into the module, the IC670ALG630 eliminates the need for external wiring panels, reducing cabinet space by up to 30% 7. Its DIN rail mounting further simplifies installation in confined industrial environments.
Rugged industrial durability:
Rated for 0°C to 60°C operation and protected against dust and moisture, the module withstands extreme conditions in oil rigs, pulp mills, and wastewater treatment facilities. Its 1500 VAC isolation ensures immunity to voltage surges common in heavy machinery applications 1.
Application Areas
The GE IC670ALG630 excels in industries requiring precise temperature monitoring and control:
- Oil and Gas:
Monitors wellhead temperatures in offshore platforms, calibrates temperature transmitters in refinery distillation columns, and interfaces with gas chromatographs for process optimization. Its fault detection capabilities prevent safety incidents caused by sensor malfunctions 7. - Power Generation:
Measures steam turbine inlet temperatures, controls boiler superheater settings, and integrates with SCADA systems for grid stability. The module’s high resolution ensures accurate load balancing in combined-cycle power plants 7. - Water and Wastewater:
Converts signals from sludge digester temperature probes, optimizes anaerobic digestion processes, and monitors heat exchangers in district heating systems. Its compact design fits into decentralized pump station control panels 7. - Food and Beverage:
Verifies pasteurization temperatures in dairy production, monitors fermentation tanks in breweries, and ensures uniform oven temperatures in baking lines. The module’s multilingual interface supports global manufacturing teams 1.
Specific applications include commissioning new process control systems, resolving intermittent sensor faults, and performing routine health checks on I/O modules during scheduled maintenance.
Related Products
- GE IC670GBI002(Genius Bus Interface Unit):
Connects the IC670ALG630 to the Genius Bus, handling signal scaling and communication with the host PLC. Ensures seamless data integration with Series 90-30/70 controllers 7. - GE IC670ALG620(RTD Input Module):
A 4-channel RTD input module complementary to the IC670ALG630, used for resistance-based temperature measurements in applications like HVAC systems and material testing 4. - GE IC670ALG230K(Analog Input Module):
An 8-channel analog current input module frequently used alongside the IC670ALG630 to monitor pressure and flow signals in hybrid process control systems 4. - GE IC670CHS002(I/O Terminal Block):
Provides generic terminal wiring for the IC670ALG630, supporting box-type or barrier-type connections for flexible installation 12. - GE IC670PWR100(Power Supply Module):
Supplies 24 VDC power to the IC670ALG630 and other Field Control modules, ensuring stable operation in distributed systems 4. - GE IC670MDL730(Discrete Output Module):
Works with the IC670ALG630 to control actuators (e.g., valves, relays) based on temperature thresholds, enabling closed-loop control in chemical reactors 7. - GE IC670ALG330(Analog Output Module):
An 8-channel analog output module used to adjust heating elements or variable-speed drives in response to IC670ALG630 temperature readings 4.
Installation and Maintenance
Pre-installation preparations:
Verify compatibility with your Genius Bus Interface Unit (e.g., IC670GBI002) and ensure the 24 VDC power supply meets the module’s requirements (18–30 VDC). Connect the IC670ALG630 to the BIU using a IC670HHC005 interface cable, securing all connections to prevent vibration-induced dislodging. Configure thermocouple types and alarm levels via the BIU software, then power on the system to initialize communication 7.
Maintenance suggestions:
Clean the module’s vents quarterly to prevent dust accumulation, which can cause overheating. Inspect wiring connections for corrosion, particularly in humid environments. Replace the module if diagnostic LEDs indicate internal faults (e.g., constant red “FAULT” light). For long-term storage, keep the IC670ALG630 in a dry, temperature-controlled environment (10–30°C) to avoid component degradation. Calibrate the module annually using GE’s IC670ALG630 calibration tool to ensure accurate signal conversion 1.
Product Guarantee
Our company offers a one-year quality warranty service for the IC670ALG630, covering hardware malfunctions not caused by human factors. During the warranty period, if the product shows abnormal performance or functional failure, we will provide replacement services. In addition, for discontinued models or urgent demands, relying on our global supply chain network, we can quickly respond to customers’ procurement needs for scarce spare parts, and provide reliable services to support the continuous and stable operation of industrial systems.
As a leading enterprise in the industrial control industry, established in 2007, we have 17 years of experience. We are an import and export trade distribution company, mainly selling major brands of industrial control parts, with many unpopular discontinued models and a large stock. Our supply channel advantages ensure a large number of in-stock items, meeting customers’ urgent needs for spare parts. We distribute PLC modules, DCS cards, ESD system cards, and more, with a focus on reliable service and timely delivery.
For inquiries, contact us via WhatsApp at +86 18859254943 or email at sales@ygplc.com.
