Product Description:

The FECG02.1-55K0-3P400-A-BN-MODB-01V01 is an AC inverter produced by Bosch Rexroth Indramat as part of the FEC Frequency Converters series. Intended for general automation, the unit modifies the supply frequency so three-phase induction motors can run at variable speeds suited to conveyors, pumps, and fans. By shifting output frequency and voltage, it supplies controlled torque during start-up and normal operation while remaining compatible with 400 VAC plant power.

At its core the converter delivers 55 kW of shaft power and can supply a continuous current of 110 A to the motor. It accepts mains in the 3 AC 380 to 480 V range and follows V/f control with SVPWM modulation for smooth sine reconstruction. Frequency commands are set in 0.01 Hz increments, giving a resolution of 0.01 Hz, and the built-in PID controller maintains closed-loop stability across a speed range of 1:100. The device rides on 50/60 Hz utility grids, relies on a 200 A line breaker for upstream protection, and can release 150 % rated torque at 5 Hz during start-up. High overload capacity is native to this 2nd-generation design, which uses an external brake chopper and separate braking resistors to absorb regenerated energy.

Mechanical size 5 housing weighs 33.8 kg, measures 364 mm wide, and carries a front-mounted big-size panel for local access; no potentiometer is fitted so all reference changes occur via the ModBus interface or relay I/O rated 230 VAC / 30 VDC at 3 A. Thermal and contamination limits are defined by the IP20 enclosure. Short bursts to 200% for 1 second and extended loading at 150% for 60 seconds are supported without derating, aligning with the speed control ratio and voltage class requirements. External brake components, a three-phase input path, and a 1:100 ratio complete the performance envelope without duplicating any earlier specifications.