EC: EFC3610 Frequency Converter (VFD)

Motion Control — Drives, motor control centers: The EFC3610 frequency converter is a variable frequency drive that can be integrated into many types of applications and machines as compact units for speed and torque control. This is a Control Engineering 2017 Engineers’ Choice Awards Finalist.

October 13, 2016

The Rexroth EFC 3610 frequency converter is scalable in performance and functionality features; it can be integrated into a wide range of automation environments with simple commissioning and open interfaces. The frequency converter increases energy efficiency while the adaptive PWM frequency adjustment minimizes motor noise. With switchover options between parameter sets and integrated PID control to increase flexibility, as well as extensive connectivity options like Multi-Ethernet interface (Sercos, EtherNet/IP, Profinet, EtherCAT, and Modbus/TCP), designated fieldbus options (Profibus DP and CANopen) and additional I/O options, the device is suitable for most machine applications.

The removable LED operator display panel shows all operating variables and features an integrated copy function. Commissioning can be done easily without external programming devices or a PC.

The integrated mini-USB programming interface, in conjunction with the downloadable Rexroth IndraWorks Ds or ConverterWorks software tools, is used for easy commissioning, offering a start-up wizard, monitoring, diagnoses and backup functionality with any PC.

With configurable analog/digital IOs, simple direct coupling with a PLC is possible. Integrated brake chopper up to 22 kW (30 hp), mains filter, plug-in terminals and standard DIN rail mount up to 7.5 kW (10 hp) significantly reduce assembly efforts.

The EFC3610 series covers the power range from 0.4 to 22 kW or 0.5 to 30 hp, while its big brother, the EFC5610 provides an expanded range up to 90 kW or 125 hp and safe torque off (STO). In addition to the freely definable V/f (V/Hz) operation, the EFC 5610 also offers vector control for an optimal torque curve. In heavy duty mode, the overload capacity can be maintained at up to 150% for 60 seconds. The high-torque EFC 5610 frequency converter also offers an optimal start torque of 200% at 0.5 Hz.

Bosch Rexroth Corp.,