GEFRAN drive model TPD32-EV-500/520-420-4B-B is a digital DC drive designed to control the speed of DC motors in modern industrial systems. Is. This drive uses advanced technologies that GEFRAN has acquired over the years of experience in this field. **General specifications of the drive:** - **main input voltage:** 500 volts AC, 361 amps, 50/60 Hz, three phases - **Main output voltage:** 520 volts DC, 420 amps - **Field input:** 460 volts AC, 20 amps, 50/60 Hz, single phase - **field output:** 360 volts DC, 20 amps - **Regulator power:** 115/230 V AC, 0.5/1 amp, 50/60 Hz, single phase - **Communication capabilities:** RS485 serial communication with Modbus RTU protocol **Features and capabilities:** - Fast startup - Self-adjustment of speed and flow regulators - 5 independent programmable slopes - Linear slopes and S-shaped curves - 7 programmable multiple speeds - Independent management of minimum and maximum speed for each rotation direction - Flow limit proportional to speed - Motor protection by I2t - PID capabilities - Diameter servo control This drive is suitable for complex industrial applications with special needs and can be used in a wide range of motor power and types of power sources, and it benefits from multiple functions for complex settings of industrial automation systems.