Description
1. Product Title
ABB Bailey NTAI05‑ Analog Input Termination Unit, INFI‑90 DCS
2. Product Overview
NTAI05 is field‑wiring termination board for ABB Bailey INFI‑90 DCS analog‑input slave modules, it does not perform A/D conversion itself. It interfaces field transmitters/sensors to I/O slave cards via ribbon cable. Dip‑shunt jumpers on‑board configure each channel for 4‑20 mA or various voltage signal types, supports both loop‑powered and externally‑powered 4‑20 mA transmitters.
Compatible slave I/O cards: IMASI02, IMASM01, IMFBS01. Channel count: 15 channels for IMASI02 / IMFBS01; 16 channels for IMASM01. Mounts on NFTP01 field termination panel, connects to slave module by dedicated flat ribbon cable. End‑of‑life, only for spare‑part maintenance for legacy power & petrochemical INFI‑90 systems。
3. Technical Specifications
- Brand: ABB Bailey
- Model: NTAI05
- Warranty: One Year
- Condition: New surplus / Refurbished original spare
- Supported signals: 4‑20 mA (loop‑power / external powered), 1‑5 VDC, 0‑5 VDC, 0‑10 VDC, ±10 VDC, per‑channel configured by dip‑shunt jumpers
- Channel capacity: 15‑16 analog input channels (depends on mating slave module)
- Field connection: Screw terminal blocks; 1 × 40‑pin ribbon‑cable connector to slave I/O module
- Mounting: Installed on NFTP01 field termination panel
- Operating temperature: 0 °C ~ +70 °C
- Humidity: 5‑95 % RH non‑condensing
- Dimensions: 78.74 × 215.9 × 233.68 mm
- Weight: approx 0.54 kg
- Remark: Termination unit only, without analog‑to‑digital conversion function; EOL spare‑part‑only, not for new‑project design
- Certification: CE
5. Application Scenarios
- Thermal‑power‑plant DCS cabinet: Field signal termination for pressure, flow, temperature transmitters in INFI‑90 boiler control system.
- Petrochemical process unit: Terminate multi‑point analog instrument signals for distillation‑unit monitoring loops.
- Legacy‑system maintenance: Replace failed field‑wiring termination boards without modifying INFI‑90 slave modules or control logic.
INFI‑90 hardware summary update：
- IMASO01：14‑ch analog output slave module
- NTAI05：Analog input field termination unit (works with IMASI02 / IMASM01 / IMFBS01)
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