3.407 RVFD Series
NEMA 4X Variable Speed Drive
The RVFD Series NEMA 4X Variable Speed Drive may be used as a “soft-start” device, for use with multi-stage wind control devices, for nozzle sequence “ramping”, and as a phase converter (single to three phase). The unit features an, integrated digital setting dial, safety stop function, integrated brake “chopper” circuit, and frequency search function. The ‘dancer’ control allows position signal to control roll tension. The RVFD Series also has optimum excitation control, password function for parameter setting protection, MODBUS RTU standard via RJ45 port, 150% torque @ 1Hz, and 200% torque at 3Hz. using gereral purpose magnetic flux vector control. The size of VFD will depend on Pump Motor HP (Horsepower), available power, and intended application. Please refer to the cut sheet for additional information as well as available sizes.