Product Description:

The EFC5610-4K00-3P4-MDB-7P-NNNNN-NNNN frequency converter is produced by Bosch Rexroth Indramat as part of the EFC Frequency Converters series. It is an AC drive intended to vary motor speed and torque in industrial automation, allowing machinery to match process demands while reducing energy use. By converting fixed three-phase mains into a regulated output, the unit provides open-loop or sensorless vector control for pumps, fans, and material-handling equipment.

The drive is rated to deliver a continuous motor output of 4.0 kW, and its inverter section supports an apparent power of 6.4 kVA at 380 V. When connected to the mains, it draws 11.9 A, while its switching devices operate at a default carrier frequency of 6 kHz, balancing acoustic noise and thermal stress. The output waveform can be modulated up to 400.00 Hz, supporting high-speed spindle operation. Two isolated analog channels and five digital command lines permit speed reference and logic control, and Modbus frames are exchanged over the RS485 interface for parameter access. Sensorless vector control maintains torque across a 1:200 service speed range, and V/f mode holds linear flux up to a 1:50 ratio.

During operation, the converter supplies 9.7 A of fundamental current to the motor terminals and can issue position-tracking pulses up to 50.0 kHz, while feedback signals are returned at up to 32.0 kHz for follower applications. Its open housing carries an IP20 rating, so it must be installed in a switch cabinet but requires no special sealing. The unit sustains full output up to 1,000 m elevation without derating and maintains modulation above base frequency in a 1:200 closed-loop window. Internal routines coordinate stall detection, carrier adjustment, and heat dissipation. Integrated analog, digital, and serial resources let the converter handle three-phase induction motors from light ventilators to constant-torque conveyors.