The ABB AI820 Module is a versatile device designed for precise signal acquisition in AC 800M automation systems. It features four differential, bipolar current or voltage inputs, with each channel configurable as either a voltage or current input. The current inputs are robust, capable of withstanding an accidental maximum normal mode connection of 30 V DC, ensuring protection against unintended voltage applications. The ABB AI820 In Stock includes 250W current sense resistors rated at approximately 5 Watts to temporarily safeguard one channel at a time, providing added reliability in demanding industrial environments.

The Analog Input Module AI820 ABB also distributes external transmitter supply to each channel, simplifying wiring for two-wire transmitters and supporting extended MTUs. There is no current limiting on the transmitter power terminals, allowing straightforward integration with various field devices. All four channels are isolated from the ModuleBus as a single group, ensuring high integrity and reducing the risk of interference. Power to the input stages is derived from the 24 V supply on the ModuleBus.

With a wide range of supported input signals, the AI820 Analog Input Module ABB accommodates -20…+20 mA, 0…20 mA, 4…20 mA, -10…+10 V, 0…10 V, 2…10 V, -5…+5 V, 0…5 V, and 1…5 V DC bipolar differential inputs. The module provides 14-bit resolution plus sign, enabling accurate, high-resolution measurements. Its design includes input shunt resistors protected to 30 V DC, enhancing safety and reliability.

The ABB ADVANT 800XA SYSTEM AI820 ABB also supports HART communication, allowing seamless integration with smart transmitters for advanced diagnostics and configuration. Its robust construction and isolation features make it ideal for process control and industrial automation applications, ensuring precise, reliable performance in harsh environments. The module’s versatility and protection features contribute to system longevity and operational efficiency.