Description
ABB DO930N (3BDS014114) – Digital Output Module for S800 I/O systems
The ABB DO930N, order code 3BDS014114, is a digital output module designed for ABB S800 I/O installations where compact, reliable 24 VDC switching is needed. From my experience, this series is chosen when engineers want straightforward wiring through an MTU, fast output response, and stable performance across standard industrial temperatures. It typically suits brownfield expansions just as well as new AC 800M-based projects, thanks to its proven ModuleBus integration and broad accessory ecosystem.
Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: 1 week for 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
- 24 VDC digital outputs – Typically used to drive interposing relays, solenoids, lamps, and contactors in low-voltage control circuits.
- Channel density suited for compact cabinets – In many cases provided as a multi‑channel module to keep footprint small and wiring tidy.
- High‑side transistor switching – Commonly sourcing outputs, which simplifies field polarity and reduces wiring errors in mixed DI/DO panels.
- ModuleBus compatibility – Seamless with ABB S800 I/O and AC 800M controllers via standard MTUs, so no surprises during commissioning.
- Diagnostics on status LEDs – You might notice that front‑face indicators speed up troubleshooting during loop checks and FATs.
- Group isolation and fuse options – Often grouped in banks for field supply distribution and protection, which is helpful for maintenance isolation.
Technical Specifications
| Brand / Model | ABB DO930N (3BDS014114) |
| HS Code | 853890 (industrial control parts, typical declaration) |
| Power Requirements | ModuleBus supply (internal, 5 VDC) for electronics; external 24 VDC (nominal) for output field power; typical module consumption low (electronics), field current depends on load. |
| Dimensions & Weight | Approx. 122 × 45 × 102 mm (H×W×D); ~0.18 kg (typical S800 I/O module envelope) |
| Operating Temperature | 0 to +55 °C (typical for S800 I/O); 5–95% RH non‑condensing |
| Signal I/O Types | Digital outputs, 24 VDC, sourcing (high‑side); multi‑channel (commonly 16 ch). Per‑channel current typically up to 0.5 A; grouped commons. |
| Communication Interfaces | S800 ModuleBus via MTU; controlled by AC 800M or compatible ABB controllers (no front serial/Ethernet on the module itself). |
| Installation Method | Plugs into TU8xx MTU on DIN rail (e.g., TU810/TU812/TU830 families); front terminal wiring for field outputs; tool‑less module replacement. |
Application Fields
DO930N fits standard discrete control tasks: motor starter commands, on/off valve actuation, conveyor and packaging interlocks, burner/boiler permissives, and lighting or alarm beacons. In many cases it’s used in:
- Oil & Gas, petrochemical skids (solenoid valves, ESD interlocks on non‑SIL loops)
- Power & utilities (MCC control, breakers via interposing relays)
- Water & wastewater (pumps and blower starts, damper commands)
- Food & beverage and general factory automation (packaging lines, conveyors, diverters)
One thing I appreciate is how it scales. A maintenance manager told us they swapped in an extra DO930N during a night shift expansion—no rework on the backplane, just add the MTU and re‑scan. The line was back in service before shift change.
Advantages & Value
- Reliability – Proven S800 I/O platform; stable diagnostics shorten commissioning and fault finding.
- Compatibility – Works with common S800 MTUs and AC 800M controllers, so retrofit risk stays low.
- Cost savings – Higher channel density per width typically reduces cabinet footprint and wiring time.
- Support readiness – Clear part number (3BDS014114) simplifies spares planning and lifecycle tracking.
Installation & Maintenance
- Cabinet & environment – Mount on DIN rail MTU in a clean, dry enclosure; allow front clearance for wiring; provide ventilation to keep below 55 °C.
- Wiring – Use 24 VDC field supply sized for peak load; follow group commons; interpose relays for inductive/high‑inrush loads; fit external suppression (flyback diodes) where applicable.
- Grounding – Bond cabinet and follow ABB grounding recommendations to minimize EMI and chatter on outputs.
- Commissioning – Verify channel mapping in the controller; use front LEDs for loop checks; test each output under load.
- Routine maintenance – Periodically re‑torque terminals, inspect for heat discoloration on high‑duty channels, and keep firmware/project libraries current in the control system (where applicable).
- Spare strategy – Keep one spare DO930N and one spare MTU per cabinet section for fast swap; label field groups for quicker isolation.
Quality & Certifications
- CE compliant (EMC and Low Voltage, typical for S800 I/O)
- cULus recognition for industrial control equipment (commonly applicable)
- RoHS compliant
- Manufactured under ISO 9001 quality systems
- Standard warranty: 365 days
Recommended Supporting Components
- ABB TU810 / TU812 / TU830 series MTUs – mechanical base and field terminals for DO930N
- 24 VDC industrial power supply with adequate reserve for simultaneous outputs
- Interposing relays and surge suppressors for inductive loads (contactors, solenoids)
- Shielded multi‑core cables for noisier environments
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