Product Description:

The FECP01.2-5K50-3P400-A-SP-MODB-01V01 is a frequency converter manufactured by Bosch Rexroth Indramat for the FEC Frequency Converters series. This first-generation, design 2 device accepts a three-phase 400 VAC supply and is intended to regulate motor speed in pump and fan installations. By translating constant mains frequency into a controllable output, it lets system flow or pressure follow real-time demand while reducing energy use and mechanical stress. A small front panel with a potentiometer supports quick local adjustments, while integral logic maintains operation when remote commands are unavailable.

The power section is rated for a continuous output current of 13 A, enabling the converter to deliver up to 5.5 kW when paired with a suitable motor. Frequency is generated digitally with a resolution of 0.01 Hz, so fine speed increments are possible across the full operating span up to 650 Hz. Short-duty overload is handled at 120% for 60 seconds, which allows brief acceleration or head-rise events without tripping. Analog references are processed with 0.05% tolerance, and digital commands hold a 0.01% tolerance, giving close correspondence between the setpoint and shaft speed. An internal brake chopper dissipates regenerative energy, while an external resistor can be added for longer braking cycles.

To fit standard control cabinets, the converter uses a mechanical size 2 housing that is 220 mm wide and carries an IP20 rating, so it must be mounted in a protected enclosure. The input supply range of 3 AC 380 to 480 V matches common plant feeds, and control data can be exchanged through the integrated ModBus interface. Output voltage is synthesized with SVPWM, which extends linear operation and helps keep acoustic noise low across the full speed control ratio of 1:100. During prolonged elevated load, the unit can sustain 105% current for 60 minutes, making it suitable for continuous duty in ventilation or water-handling equipment.