Product Description:

The FECG02.1-18K5-3P400-A-BN-MODB-01V01 belongs to the FEC Frequency Converters series produced by Bosch Rexroth Indramat. As a three-phase frequency converter for general automation, it modulates the supply voltage delivered to squirrel-cage or permanent-magnet motors, allowing closed-loop speed control without mechanical gear changes. Within automated conveyor lines, mixers, or pumps, this model bridges the fixed 50 / 60 Hz mains and variable motor requirements while remaining compatible with the 400 VAC class found in standard industrial switchboards.

During continuous operation, the drive can supply 39 A to the motor windings while delivering its nominal output of 18.5 kW. It accepts mains power at 3 AC 380 to 480 V, matching the declared voltage class and the 50 to 60 Hz range with a tolerance of ±5%. The inverter section produces output frequencies that can be adjusted in digital steps of 0.01 Hz, enabling fine speed trimming for process requirements. Across that programmable window, the unit maintains a speed range of 1:100, covering both creeping jogs and full-rated rotation. Output voltage follows the supply level from zero up to line potential.

To handle transient demands, it tolerates 200 % for 1 second and 150 % for 60 seconds overloads, and this overload capacity is coordinated with a selectable carrier range of 1 to 8 kHz that influences motor acoustics and torque ripple. Start-up torque reaches 150% at 5 Hz, aided by an external brake chopper that sheds excess DC-link energy during rapid stops. The housing is rated to IP20, which helps guard live parts inside the enclosure. The unit uses size 3 construction and design 1, includes a Modbus interface for parameter access, and omits a potentiometer to favor digital control. The housing stands 463 mm high, 275 mm wide, and 218 mm deep, weighs 16.2 kg, and functions between -10 °C and 40 °C on a three-phase supply.