Basler Electric AEM-2020 – Analog Expansion Module for Control Systems

The Basler Electric AEM-2020 is a versatile analog expansion module designed to augment the I/O capabilities of generator control panels, excitation systems, and protection relays. It provides additional analog input and output channels, enabling the monitoring of more process variables and the adjustment of multiple setpoints from a central location.

Features and Performance

The AEM-2020 includes multiple analog input channels that accept standard signals such as 0–10 V DC or 4–20 mA. These inputs can be used for temperature, pressure, current, or any other transducer output. Analog output channels provide 0–10 V or 4–20 mA signals for controlling actuators, remote setpoints, or interfacing with external devices. All channels are galvanically isolated to prevent ground loops and ensure signal integrity.

• Analog inputs: 4 channels, 0–10 V or 4–20 mA (selectable)

• Analog outputs: 4 channels, 0–10 V or 4–20 mA (selectable)

• Resolution: 12‑bit (input), 10‑bit (output)

• Accuracy: ±0.2% of full scale

• Isolation: 1500 V RMS between channels

• Communication: parallel bus or RS‑485 Modbus

• Power supply: 120 V AC or 24 V DC (field‑selectable)

• LED indicators: power and communication status

• Mounting: DIN‑rail or panel

• Operating temperature: –20 °C to +65 °C

Integration into Systems

The AEM-2020 is designed to interface seamlessly with Basler’s BE1 and DECS series relays, as well as with PLCs and SCADA systems. It expands the monitoring and control capabilities without requiring major hardware changes. In generator applications, it can bring in bearing temperature, fuel pressure, and ambient conditions for enhanced diagnostics.

Installation and Configuration

Mounting is via DIN rail or screws. Configuration is performed through DIP switches or via software over the communication link. Each channel can be independently scaled and filtered for optimal performance.

Reliability and Quality

Built with industrial‑grade components and conformal coating, the AEM-2020 withstands harsh environments. It complies with IEC 61000‑4 standards for ESD and surge immunity, ensuring stable operation in electrically noisy industrial settings.

In summary, the Basler Electric AEM‑2020 analog expansion module provides a flexible, reliable way to extend analog I/O capacity in generator control and protection systems.