ABB AI880A

Technical parameters

Channels: It has 8 current input channels that can handle 0...20 mA or 4...20 mA single-ended unipolar inputs.

Accuracy: Accuracy is a key aspect of this voltage-to-frequency converter asABB AI880A can achieve 12-bit resolution and up to 0.1% accuracy with temperature drift up to 50 ppm/°C, allowing accurate and precise measurement of analog signals.

Isolation: Each of the eight channels is integrally isolated from the module bus with a 50 V rated insulation voltage and 500 V AC dielectric test voltage. This allows electrical isolation to avoid crosstalk and potential damage.

Power supply: The module is powered by 24 V (in the module bus), with a power consumption of 45 mA in the +5 V module bus and 50 mA (maximum) in the +24 V module bus. In addition, ABB AI880A can power external transmitters (its maximum current is limited to 260 mA).

Features

Support single or redundant configuration: ABB AI880A supports single or redundant configuration, which can flexibly meet different system requirements and improve system availability and reliability.

Loop monitoring DI function: The loop monitoring DI function provides additional safety functions.

Configurable alarm limits and ranges: Operate with configurable field power output alarm limits and over/under range limits of current input for customized monitoring and protection.

Current-limited transmitter power supply: Each channel is equipped with a current-limited transmitter power supply, which is convenient for connecting 2-wire or 3-wire transmitters to ensure normal operation and equipment protection.

Features such as onboard diagnostics: With onboard diagnostics, you can check the internal voltage, field power input and the status of each channel. ABB AI880A can identify and report module errors, warnings and channel errors through the front LED for quick troubleshooting and maintenance.

XEIX - HART Direct Communication: One of the functions of ABB AI880A is to implement HART in addition to intelligent communication with field devices, which enables advanced diagnostics and parameter configuration.

Application Scope

For process automation: DS is widely used in industries such as chemical, petrochemical and pharmaceutical to monitor and control process variables such as temperature, pressure, flow and liquid level. The benefits of accurate and reliable analog input measurement are to maintain process conditions and provide accurate product quality.

Power Generation: ABB AI880A can be used in power plants to measure low-level current signals from generator output, transformer conditions and distribution systems, providing key data for efficient power generation and grid integration.

Manufacturing and Production: In manufacturing facilities, it can be used in applications such as motor control, conveyor systems and robotic arms, where accurate measurement of current signals is critical to accurately control and monitor production processes.

HVAC systems to lighting control and energy management: ABB AI880A building automation without DDC can obtain analog signals from sensors to help intelligently control and optimize building services, improve energy efficiency and occupant comfort.