AO845A 3BSE045584R1 ABB Bailey

AO845A 3BSE045584R1 ABB Bailey Central control module

Brand：ABB Model number：AO845A 3BSE045584R1

Country of origin: Sweden Product weight：0.55KG

HS code：8517623990

Product Details：

Product Dimensions：

The AO845A is an 8-channel analog output module. The output type is Current Source, and it provides a signal range of 4-20 mA. It is designed for applications requiring high integrity and utilizes ModuleBus communication to interface with the controller. The resolution of the output is typically 12 bits. The module supports HART communication for advanced field device management, though its primary function is high-integrity control. It has an operating temperature range suitable for industrial environments, typically from 0°C to 55°C (32°F to 131°F). The power supply requirement is derived from the ModuleBus and an external field power supply, which is usually 24 V DC.

Product Advantages

One of the main advantages of the AO845A is its high-integrity design, making it suitable for safety-critical applications where reliable and accurate analog output is essential. It provides a robust and reliable interface between the control system and field devices, ensuring precise control actions. The module's HART communication capability allows for simultaneous control and diagnostics, simplifying maintenance and improving operational efficiency. Its integration into the System 800xA environment offers seamless configuration, diagnostics, and asset management. The AO845A contributes to system availability and reduced downtime through its reliability and advanced diagnostic features.

Precautions

When installing and operating the AO845A, several precautions should be taken. Always ensure that the field power supply is stable and within the specified voltage range, as incorrect power can damage the module or connected devices. Use shielded cables for all analog output signals and properly connect the shielding to the system ground to minimize electrical noise interference and ensure signal integrity. The module should only be inserted or removed from the I/O cluster when the power is off, following the system's hot swap limitations. Always refer to the official ABB documentation for detailed wiring instructions, configuration settings, and environmental requirements to ensure safe and correct operation. Never exceed the maximum permissible load on the output channels.

Product Applications

The ABB AO845A module is primarily used in process control industries that require high reliability and integrity in their control loops. Typical applications include chemical processing plants, oil and gas facilities, power generation stations, and water treatment facilities. It is used to drive final control elements such as control valves, actuators, and variable speed drives based on the control strategy executed by the AC 800M controller. Its high-integrity nature makes it particularly suitable for controlling critical parameters like flow, pressure, and temperature where failure could lead to significant operational issues or safety hazards.

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