AAI143-H50/K4A00 Yokogawa, Current Input Module

Description:

Current Input Modules (Isolated) :This module provides 16 inputs of 4 to 20 mA signal. It can be used in dual-redundant configuration. 

Model: AAI143 (*1) 

Number of input channels: 16, isolated 

Input signal 4 to 20 mA 

Allowable input current: 24 mA 

Withstanding voltage: Between input and system: 1500 V AC, for 1 minute (*4) 

Input resistance 

Power ON 270 Ω (20 mA) to 350 Ω (4 mA) (*2) 

Power OFF 500 kΩ or larger 

Accuracy: ±16 µA 

Data update period: 10 ms 

Transmitter power supply: 19.0 V or higher (at 20 mA) 25.5 V or less (at 0 mA) (output current limit: 25 mA) (*5) Setting of 2-wire or 4-wire transmitter: For each channel by setting pin 

Drift due to ambient temperature change: ±16 µA/10 ˚C 

Maximum current consumption: 230 mA (5 V DC), 540 mA (24 V DC)

External communication: Pressure clamp terminal, MIL connector cable, dedicated cable (KS1) 

HART communication (*3): Available 

*1: A Zener barrier is not allowed to be connected with this module. Use an isolation barrier when the module is used in intrinsically safe application. 

*2: The module input resistance viewed from the terminals depends on the current strength as calculated as below: 250 Ω + current value voltage drop in the input protection circuit F04E.ai 

*3: When this module is installed to a ER bus node unit with HART function, the EB401 firmware must be rev. 2 or later. 

*4: When the dedicated cable is used, the withstanding voltage is 500 V AC (between the input signal and the system). When the ML connector cable is used, the withstanding voltage depends on the electrical specifications of the cable. 

*5: This voltage is generated between the connecting terminals for 2-wire transmitters for this module. When calculating the minimum operating voltage for transmitters, consider to allow margins for voltage drop in external wiring.

Frequently Asked Questions:

1.What is the fully description of AAI143-H50/K4A00?
Voltage: 100-120 V AC, Frequency: 50/60 HzAnalog Input Module (4 to 20 mA, 16-channel, Isolated)

With digital communication (HART protocol)

With no explosion protection

With KS Cable Interface Adapter (For connecting AEA4D Terminal Board) [Model: ATK4A-00]

2.What's the Model of AAI143-H50/K4A00?
ATK4A-00

Datasheet Link:

AAI143-H50/K4A00 Yokogawa, Current Input Module PDF Datasheet