Product Description:

The FVCA01.2-55K0-3P4-MDA-LP-NNNN-02VRS is a three-phase frequency converter produced by Bosch Rexroth Indramat within the FVCA Frequency Converters series. It accepts utility power at 400 V and delivers a variable AC output so induction or permanent-magnet motors can be speed-controlled in factory conveyor lines, pumps, and general automation cells. The unit belongs to design revision 2 of the series and supports scalar and vector control modes through Modbus networking.

The converter handles an apparent power of 75.0 kVA while operating from a supply window of 3 AC 380-480 V (-15% / +10%). On the line side it draws a rated input current of 119.0 A, and on the motor side it can deliver a continuous output current of 110.0 A to support a 55 kW motor load. The drive’s output frequency is programmable up to 400 Hz, which allows operation above mains frequency when the motor application permits it. Parameter changes are finely graded because the digital reference uses a narrow step size and a tolerance band of 0.01%. An internal SVPWM modulator shapes the output waveform for motor control.

The frame F housing measures 650 mm in height, 325 mm in width, and 265 mm in depth, weighs 39 kg, and carries an IP 20 rating for cabinet mounting. During start-up, field-oriented control can generate torque up to 200% at 0 Hz, which helps move loaded equipment from standstill. The switching devices use a default PWM frequency of 2.0 kHz, and closed-loop positioning is supported with an encoder range of 1:1000. User interaction is through an LCD panel and a built-in potentiometer, while relay contacts rated at 230 VAC / 30 VDC / 3 A provide status signals. Continuous operation is permitted from -10 °C to 40 °C at elevations up to 1000 m without derating, and commanded speeds can be adjusted in steps as small as 0.01 Hz.