Product Description:

The FECG01.2-55K0-3P400-A-BN-MODB-01V01 is produced by Bosch Rexroth Indramat within the FEC Frequency Converters series. Intended for general automation tasks, this device adjusts the frequency of the incoming supply so AC motors can run at variable speeds that match process requirements. This type of control helps reduce abrupt starts, supports smoother speed changes, and allows the connected motor to follow changing load demands more closely. It is housed in mechanical size 5 and belongs to the first generation in design 2 of the product line.

Electrically, the unit accepts a 3-phase input with a voltage range of 3 AC 380 to 480 V, which falls within the 400 VAC class. At the output, it delivers a continuous rating of 55 kW, making it suitable for medium-power pumps, fans, and material-handling drives that require controlled acceleration and deceleration. The open-frame design meets IP20 protection, so the converter should be installed inside a panel to prevent contact with live parts. Mechanical size 5 uses a larger heat sink and mounting pattern suited to cabinet installation, and the preset high-overload profile supports demanding operating cycles. Speed reference signals come from a host controller, and regenerative energy is handled through an external brake chopper rather than an internal braking circuit.

The converter handles short-term overload through two operating bands, allowing 200% for 1 second during abrupt acceleration and 150% for 60 seconds during longer surges. Communication with higher-level control equipment takes place through Modbus, which allows run commands and parameter access over a standard serial connection. Adequate cabinet space should be provided because the enclosure width is 364 mm, and the larger housing also needs room for cable routing and cooling airflow. During rapid deceleration, the external brake-chopper path dissipates regenerative energy so the DC bus remains within a safe operating range.