PRODUCT INFORMATION
Product Overview
The General Electric IC670ALG621 is an analog RTD Input Module designed for the Field Control distributed I/O system. It provides four dedicated channels for measuring temperature signals in industrial automation environments. Each channel accepts resistance values ranging from 0 to 3276.7 Ohms. The hardware supports both 3-wire and 4-wire RTD sensor wiring configurations. Analog signals are digitized with a resolution of 15 bits plus sign.
Scan times for temperature acquisition measure 210 milliseconds at 60 Hz line frequency. Operating at 50 Hz line frequency yields a scan time of 230 milliseconds. The module features an IP20 rated enclosure intended for clean indoor control cabinets. Operating temperature limits range from 0°C to 55°C during normal plant operation. Relative humidity tolerance spans from 5% to 95% under non-condensing conditions.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Weight | 1.00 lbs (0.45 kg) |
|---|
| Module Type | Analog RTD Input Module |
|---|
| Number of Channels | 4 Channels |
|---|
| RTD Configurations Supported | 3-wire and 4-wire configurations |
|---|
| Input Resistance Range | 0 to 3276.7 Ohms |
|---|
| Digital Resolution | 15 bits plus sign |
|---|
| Scan Time (60 Hz) | 210 ms |
|---|
| Scan Time (50 Hz) | 230 ms |
|---|
| IP Rating | IP20 |
|---|
| Min. Operating Temperature | 0°C |
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| Max. Operating Temperature | 55°C |
|---|
| Operating Humidity | 5 to 95% (non-condensing) |
|---|
TECHNICAL INFORMATION
Features
- Four independent analog RTD input channels.
- Supports both 3-wire and 4-wire RTD sensor wiring configurations.
- Input resistance measurement range spanning 0 to 3276.7 Ohms.
- Digital signal conversion resolution of 15 bits plus sign.
- Configurable scan rate of 210 ms at 60 Hz or 230 ms at 50 Hz.
- Protective enclosure rated for IP20 industrial environments.
TECHNICAL INFORMATION
Applications
- Industrial temperature monitoring with resistance temperature detectors.
- Field Control distributed I/O station temperature acquisition.
- Process measurement loops requiring high-resolution RTD conversion.
TECHNICAL INFORMATION
Connections / Interfaces
- Accommodates field connections for 3-wire RTD sensors.
- Accommodates field connections for 4-wire RTD sensors.
- Mates directly with Field Control I/O base terminal blocks.
TECHNICAL INFORMATION
Installation Guidelines
- Install the module in a suitable protective enclosure to maintain IP20 compliance.
- Maintain ambient operating temperatures between 0°C and 55°C.
- Ensure non-condensing humidity levels remain within the 5% to 95% operating limit.
- Verify wiring integrity for 3-wire and 4-wire sensor terminations before powering up.
TECHNICAL INFORMATION
Configuration Guidelines
- Select the appropriate line filter frequency based on plant AC supply.
- Configure input channel registers to reflect connected RTD sensor resistance ranges.
TECHNICAL INFORMATION
Compatibility
- Compatible with General Electric Field Control distributed I/O base assemblies.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with General Electric Field Control distributed I/O base assemblies.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the primary function of the GE IC670ALG621 module?
It monitors temperature by processing analog resistance signals from up to four RTD sensors.
Which RTD wiring configurations does the IC670ALG621 accept?
The module accepts both 3-wire and 4-wire RTD sensor wiring configurations.
What are the scan update times for the IC670ALG621?
The scan time is 210 ms at 60 Hz and 230 ms at 50 Hz frequency.
What input resistance range is supported by the IC670ALG621?
Each input channel measures resistance values from 0 to 3276.7 Ohms.
