Emerson IC694ALG221 Four-Channel Current Analog Input Module
A four-channel current-input module used in PACSystems RX3i and compatible Series 90-30 I/O contexts.
Product Overview
IC694ALG221 is the four-channel current analog input module in the IC694 I/O family. Emerson lists it for RX3i I/O and identifies special 24 VDC power-wiring guidance for IC69xALG220/221/222 applications.
The module should be selected with the complete rack, terminal, power and channel-engineering record. A nearby ALG220 or ALG222 article has a different signal arrangement.
Performance
Acquire current loops
Transfers four configured current-input channels into the controller project.
Integrate with the rack
Operates in the approved IC694 or RX3i I/O arrangement with documented field power.
Preserve loop engineering
Keeps range, scaling, power source and alarm use linked to each field point.
Technical Details
| Manufacturer | Emerson / GE Fanuc | Exact model | IC694ALG221 |
|---|---|---|---|
| Product family | IC694 analog I/O | Product type | Analog Input Module |
| Input channels | 4 | Signal type | Current |
| Power-planning note | Follow IC69xALG220/221/222 isolated 24 VDC wiring guidance | Selection evidence | Rack, terminal and loop schedule |
System Integration
Record the loops
Capture each channel tag, current range, scaling, source and alarm assignment.
Verify field power
Check the approved isolated 24 VDC arrangement and conductor routing.
Inspect termination
Photograph terminals, shields, polarity and rack position before disconnection.
Commission
Apply known loop current and confirm controller values on every used channel.
Applications
Process current loops
Collecting documented current signals from field transmitters.
Legacy I/O service
Maintaining the exact IC694 module within an approved rack and project.
Controlled spare exchange
Restoring four loop channels with the original power and scaling records.
FAQ
Q01What evidence should accompany a IC694ALG221 enquiry?+
Provide the rack model, slot, terminal assembly, isolated 24 VDC wiring, four-channel schedule and project backup.
Q02Can IC694ALG220 replace IC694ALG221?+
No. The ALG220 is a voltage-input module, while this article is selected for current inputs.
Q03Why must field power be reviewed for IC694ALG221?+
Emerson directs IC69xALG220/221/222 applications to the RX3i system wiring guidance for isolated 24 VDC power.
Q04What should be measured after installing IC694ALG221?+
Check loop polarity and apply known current values to confirm scaling and alarm behavior for each used point.
Q05What prevents a wrong IC694ALG221 selection?+
The full catalog number, rack location, terminal identity, power diagram and channel schedule define the required module.
About IndustryParts
https://www.industryparts.com/Loop-power and channel evidence stay with the module identity
IndustryParts reviews the exact catalog number, rack context, field-power diagram and requested quantity before quotation.
- •Exact submitted model retained
- •Installed-system evidence reviewed
- •Requested quantity linked to the enquiry
Request a model-specific quotation
Send the complete IC694ALG221 label, requested quantity, delivery destination and installed-system context.
