ABB FRSA-00 inverter communication ACS355 series

The ABB FRSA-00 is a communication module primarily used for connecting the ACS355 series inverter to an RS-485 Modbus RTU network. Here is a detailed introduction:

Product Features

Communication Capability: It has an RS - 485 communication interface and supports the Modbus RTU communication protocol, enabling effective data exchange between the inverter and other devices in the automation system, such as programmable logic controllers (PLCs) and human - machine interfaces (HMIs).

Compact Design: The module is small - sized, measuring 11×1×1 cm. It can be easily installed in the inverter cabinet, saving valuable space in industrial control cabinets.

Built - in Termination Resistance: The FRSA - 00 has a built - in 120 - ohm termination resistor, which can be configured through the jumper J1 pin. This helps to improve the stability and reliability of the communication line and reduce signal reflection and interference.

Technical Specifications

Communication Medium: It uses shielded twisted - pair cable with an impedance of 100 - 150 ohms as the communication medium, which can effectively resist electromagnetic interference and ensure the quality of signal transmission.

Transmission Rate: The maximum transmission rate can reach 250 kb/s, which can meet the basic data communication requirements between the inverter and other devices.

Power Supply: It usually obtains power from the inverter, and the power supply voltage range is consistent with that of the inverter, generally 24 VDC ±10%.

Installation and Use

Installation Steps: First, remove the terminal cover of the inverter and the fastening screws of the optional board on the inverter. Then, install the FRSA - 00 board in the correct position using the gasket included with the FRSA-00 and the screws removed in the previous step. Next, tighten the fastening screws of the FRSA-00, install the inverter clamp, and finally put the terminal cover of the inverter back in place.