Description
ABB AI930S (3KDE175511L9300) – Robust Analog Input Module for Distributed Control Systems
The ABB AI930S seems to be part of ABB’s latest-generation I/O family used in 800xA-based architectures, designed for reliable analog signal acquisition in demanding plants. From my experience, this model is typically deployed where you want clean, stable 4–20 mA measurements from field transmitters, with the convenience of hot-swap serviceability and clear onboard diagnostics. You might notice that it fits the modern ABB approach: compact module, MTU/backplane connection, and straightforward integration into cabinet builds.
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: 1 week if in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment before delivery
- Express options: FedEx, UPS, DHL
Key Features
- Analog input module for process signals – Optimized for current-loop field transmitters commonly used in process control.
- Stable 4–20 mA acquisition – In many cases installed for accurate, low-noise current measurements across long cable runs.
- Backplane/MTU connectivity – Quick module replacement without disturbing field wiring; helps reduce downtime during maintenance.
- Channel and module diagnostics – Status LEDs and fault reporting make it easier to find wiring issues or failed devices.
- Hot-swap serviceability – Typically allows module replacement under power when used per ABB system guidelines.
- Industrial temperature design – Built for cabinet environments in process plants; good choice for utilities, chemicals, oil & gas.
- Fits ABB DCS architectures – Used with ABB control systems where the I/O module communicates via the base/MTU to the system interface unit.
Technical Specifications
| Brand / Model | ABB AI930S, Part No. 3KDE175511L9300 |
| HS Code | 853890 (Parts for electrical control apparatus) |
| Power Requirements | Backplane/MTU supplied (24 V DC system supply is typical for ABB I/O racks) |
| Signal Input/Output Types | Analog input (current loop), commonly 4–20 mA in this series; verify final variant during engineering |
| Communication Interfaces | Module-to-backplane interface; system communication handled by the host termination/base and controller node |
| Installation Method | Plug-in module on an ABB MTU/base (DIN-rail mounted cabinet installation) |
| Operating Temperature | Typically suitable for standard control cabinets; −20 to +55 °C ranges are common in ABB I/O families (confirm for this revision) |
| Dimensions & Weight | Compact, hand-sized plug-in form factor; exact size depends on MTU/base configuration |
Application Fields
This module is typically selected wherever analog process variables must be monitored with high availability and quick service access. I see it often in:
- Oil & Gas: flow, pressure, level transmitters in upstream and midstream skids
- Power & Utilities: boiler, feedwater, and balance-of-plant instrumentation
- Chemicals & Petrochem: reactor and tank farm measurements with long cable runs
- Water & Wastewater: remote pumping stations and treatment plant analog loops
- Pulp & Paper / Food & Beverage: consistent analog acquisition for quality controls
Advantages & Value
- High availability – Hot-swap capability and MTU wiring means faster turnaround if a module needs replacement.
- Compatibility – Matches ABB control system topologies, helping you reuse engineering and spare strategies you already have.
- Lower lifecycle cost – Standardized wiring and diagnostics can reduce commissioning time and troubleshooting hours.
- Traceable sourcing – Genuine parts policy and 365-day warranty reduce risk on critical plant I/O.
One thing I appreciate is how cleanly these modules slot into existing ABB cabinets. A recent water utility customer swapped a legacy AI card for AI930S across multiple panels over a weekend shutdown; the backplane approach kept field wiring intact and saved a lot of man-hours.
Installation & Maintenance
- Cabinet & mounting – Install on the designated ABB MTU/base on DIN-rail inside a ventilated control cabinet; keep ambient within specified range.
- Wiring – Use shielded twisted pairs for analog loops; terminate shields per plant grounding policy to reduce noise and ground loops.
- Power & earthing – Provide stable 24 V DC system supply to the backplane; maintain clean cabinet ground reference.
- Loop checks – Perform loop calibration from transmitter to controller; verify scaling, range, and alarm thresholds in the DCS.
- Hot-swap – When replacing under power, follow ABB procedures and observe ESD precautions; seat the module fully until latch engages.
- Routine care – Keep vents free of dust, audit terminal tightness during shutdowns, and apply firmware/configuration updates via the system tools when applicable.
Quality & Certifications
- Manufacturer quality systems: ISO 9001
- Conformity: CE marking (EMC/Low Voltage), RoHS compliance in most cases
- Safety listings: UL/cUL for industrial control equipment (varies by regional build)
- Warranty: 365 days from shipment
If you’re aligning spares across multiple sites, AI930S is a practical pick—standard form factor, easy servicing, and it plays nicely with ABB engineering workflows. If you’d like, share the controller and MTU/base details you use, and I’ll double-check exact channel types and any HART or isolation options for your variant before you place an order.
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