Product Description:

The EFC5610-75K0-3P4-MDA-7P-FCPNN-L1NN is a frequency converter manufactured by Bosch Rexroth Indramat as part of the EFC Frequency Converters series. It operates between the facility power supply and a three-phase motor, modulating voltage and frequency so that speed and torque match real-time process requirements. In automated lines, this helps reduce mechanical stress, lower energy use, and allow centralized start-stop sequencing through the drive instead of contactors.

At its heavy-duty rating, the converter supplies 75.0 kW of mechanical power to the connected motor. It accepts a plant supply of 400 V AC (380 to 480 V, -15% / +10%), enabling direct connection to common 400 V distribution systems without an upstream transformer. Motor control is handled by standard vector control (SVC), which calculates flux and torque in real time to help keep speed stable during load changes. For system integration, the unit communicates over Modbus, allowing start commands, status polling, and parameter changes from a PLC or HMI. The enclosure carries an IP 20 rating, so live parts are finger-safe, but the converter must be mounted inside a ventilated cabinet. The control section follows the Flex-Control concept with standard digital and analog I/O, and the drive is intended for three-phase networks.

The integrated Safe Torque Off (STO) circuit disables pulse patterns to the inverter bridge, achieving a zero-torque state without external relays. Compliance with industrial EMC is supported by the built-in industrial area Class C3 filter that attenuates conducted emissions on both the motor and supply leads. Mechanical planning is simplified by the frame size J, which provides a compact footprint while accommodating the high-current terminals required at the converter's rated output. Local operation is handled through a standard LCD display with potentiometer, giving direct access to speed references, alarms, and parameter groups from the front panel.