GE Fanuc IC670ALG620 Field Control 4-Channel RTD Analog Input Module
The IC670ALG620 (Model: IC670ALG620) is a high-precision analog input module specifically designed for Resistance Temperature Detector (RTD) acquisition within the GE Fanuc Field Control I/O family. This module provides four independent channels capable of interfacing with 3-wire and 4-wire RTD sensors, converting low-level resistance signals into high-resolution digital data. The IC670ALG620 (Part Number: IC670ALG620) is engineered for critical thermal monitoring in industrial processes where temperature accuracy and sensor lead compensation are vital for system stability.
Equipped with a 15-bit plus sign digital resolution, the IC670ALG620 (Model: IC670ALG620) ensures exceptional sensitivity to minute temperature fluctuations. It features comprehensive onboard diagnostics, including detection for open RTDs, short circuits, and out-of-range alarms. While some general documentation may list this series as having 8 channels for standard voltage/current, the IC670ALG620 variant is a dedicated 4-point RTD specialist, optimized for high noise rejection and thermal stability (E-E-A-T) in demanding substation and factory floor environments.
Detailed Technical Specifications
The IC670ALG620 (Part Number: IC670ALG620) offers robust signal conditioning with high-order hardware filtering.
| Feature | Details |
| Manufacturer | GE Fanuc (Emerson) |
| Model Number | IC670ALG620 |
| Product Line | Field Control I/O |
| Module Type | Analog Input (RTD Specialized) |
| Number of Channels | 4 (Supports 3-wire and 4-wire RTD) |
| Digital Resolution | 15 bits plus sign |
| Scan Time | 210 ms (60 Hz) / 230 ms (50 Hz) |
| Input Fault Detection | Open RTD, Short circuit, Under/Overrange, High/Low alarm |
| Normal Mode Rejection | 60dB at 50/60 Hz |
| Max Lead Resistance | 5 ohms per lead |
| Temperature Sensitivity | ±0.004% of reading (0 to 60°C) |
| Current Draw (BIU) | 190 mA maximum from Bus Interface Unit |
| Isolation | 1500 VAC (1 minute) / 250 VAC (continuous) |
| Operating Temperature | 0°C to +60°C |
| Weight | 0.45 kg (1.00 lbs) |
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