Description
- Product Model: AAI543‑H50/K4A00
- Brand: Yokogawa
- Warranty: One Year
- Input Voltage: Backplane powered; 5 VDC max 230 mA, 24 VDC max 540 mA
- Operating Temperature: 0 °C ~ +60 °C
- Storage Temperature: ‑40 °C ~ +85 °C
- Response Time: 10 ms data update period; standard redundant switch‑over ≤100 ms
- Protection Class: IP20, FIO rack‑mount cabinet‑internal DCS I/O module
- Accuracy Class: ±48 µA full‑scale; temperature drift ±16 µA /10 °C
- Output Frequency: N/A (analog current output)
- Rated Current Range: 16‑channel isolated 4‑20 mA output; allowable load resistance 0‑750 Ω; open‑circuit detection threshold <0.65 mA
- Communication Interface: FIO ESB bus backplane; HART superimposed on each analog output channel; /K4A00 = built‑in KS‑cable interface adapter (ATK4A‑00) for AEA4D terminal board via KS1 dedicated cable
- Supported Protocols: Yokogawa ESB bus, HART protocol; supports 1:1 module‑level hot‑standby redundancy
- Overload Capacity: 1500 V AC 1‑minute isolation between field output and system side; per‑channel open‑circuit fault diagnosis; over‑range monitoring
- Dimensions: 23.5 mm × 104 mm × 110 mm; weight 0.4 kg
Product Overview
The Yokogawa AAI543‑H50/K4A00 is a 16‑channel isolated HART‑capable analog output module for CENTUM CS3000 / VP DCS systems. It converts DCS digital control values into 4‑20 mA current signals to drive control valves and positioners. Every channel supports superimposed HART digital communication for valve parameter reading and remote configuration. The /K4A00 option integrates KS‑cable interface adapter, directly connecting to AEA4D terminal unit with KS1 dedicated flat cable without MIL‑connector intermediate adapters. It supports module‑level 1:1 hot‑standby redundancy with standard‑speed switch‑over. Built‑in open‑circuit detection reports broken field loops. It addresses typical process‑plant pain‑points: large‑quantity valve output requirements, need for HART smart‑valve integration, complex intermediate‑adapter wiring for FIO I/O racks. DCS engineers, instrument technicians and process‑plant integrators benefit from high‑density 16‑channel design, HART per‑channel capability, simplified KS‑cable wiring, hot‑swap and drop‑in spare‑part replacement for existing CENTUM FIO racks.
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