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Description
Yokogawa AEA4D-06 Terminal Board for Analog
The Yokogawa AEA4D-06, also cataloged as the AEA4D Terminal Board for Analog, operates as a dedicated hardware component for connecting 16-channel analog I/O signals within CENTUM VP and CENTUM CS 3000 DCS platforms. It provides direct physical interface execution for Yokogawa FIO analog modules and ensures channel-to-channel isolation for signal integrity.
Hardware Specifications
Parameter
Specification
ModelBrand
AEA4D-06
Origin
Japan
Weight
1.5 kg
Dimensions
Standard 19-inch rack mountable
OperatingTemp
0 to 55 degC
PowerConsumption
Negligible (passive terminal board)
Number of Channels
16
Terminal Connection Type
M4 screws
Terminal Configuration
16 points x 2
Compatible Interface Cable
KS1 Signal Cable
Insulation Resistance
100 MOhm or greater at 500 V DC
Withstanding Voltage
500 V AC for 1 minute
DCS Signal Integrity Features
The AEA4D-06 ensures channel-to-channel isolation between analog signals to prevent cross-talk and interference in multi-channel configurations. The ISA Standard G3 conformal coating provides corrosion resistance against industrial gases, maintaining stable 4-20 mA HART loop measurements over time. The terminal board supports single and dual-redundant FIO configurations, ensuring continuity of analog signal paths during module replacement or maintenance.
Frequently Asked Questions
Q: VnA: Can the AEA4D-06 be hot-swapped while the DCS is online? A: No, the terminal board is a passive connection interface. Field modules can be replaced under hot-swap procedures, but the board itself must remain wired during operation.
Q: VnA: Does the terminal board support explosion-proof environments? A: No, the -06 suffix indicates ISA G3 coating but explicitly no explosion protection, suitable for non-hazardous locations only.
Q: VnA: What is the expected signal isolation between channels? A: Channel-to-channel isolation follows standard DCS analog separation practices; typical insulation resistance is 100 MOhm at 500 V DC.
Field Installation Guidelines
Mount the terminal board on a standard 19-inch rack using M4 fasteners.
Route KS1 interface cables in separate trays from high-voltage AC lines to minimize induced noise.
Ensure proper grounding of shielded cables to the rack chassis to maintain channel-to-channel isolation.
Avoid mechanical stress on screw terminals; torque M4 screws to recommended ranges (~0.5 Nm).
Inspect conformal coating integrity if the board is installed in environments with corrosive gases.
