SEW-EURODRIVE 31C075-503-4-00 MOVITRAC 31C Frequency Inverter

Rated power: 7.5kW. Input voltage: 380V to 500V AC 3-phase, 50/60Hz. Output current: 17.5A continuous. Output frequency: 0Hz to 400Hz. Control modes: V/Hz, sensorless vector. Overload capacity: 150% for 60s, 180% for 2s. Operating temperature range: -10°C to +50°C. Protection rating: IP20.

Sensorless vector control provides high torque at low speeds. Integrated brake chopper handles regenerative loads. Built-in EMC filter meets industrial EMC standards. Programmable analog and digital I/O support flexible control integration. Motor temperature protection via PTC sensor input. Multi-point parameter set storage.

It drives conveyor systems, pump stations, fan arrays, mixer drives, hoists, material handling machinery and medium-power industrial variable-speed systems.

Speed range: 1:100 vector mode. Starting torque: 150% at 0Hz. Speed accuracy: ±0.5% rated speed. Efficiency: 96% at rated load. Operating temperature range: -10°C to +50°C. Vibration resistance: 2G @ 10Hz to 500Hz.

Chassis: powder-coated galvanized steel. Power stage: IGBT power module. Heat sink: extruded aluminum alloy. Control PCB: FR-4 with conformal coating. Terminals: high-current tin-plated copper.

It features vertical book-style chassis, front operator interface with display and keypad, top and bottom terminal blocks, integrated EMC filter, finned heat sink and mounting points.

It converts fixed-voltage fixed-frequency AC input to variable-voltage variable-frequency output via active rectification and IGBT inversion. Sensorless vector control algorithm regulates motor flux and torque independently for precise speed control and high dynamic response across the speed range.

Mount vertically with minimum clearance top and bottom for ventilation. Use appropriately sized power and motor cables. Connect PE ground reliably. Install external brake resistor for high-inertia loads. Ensure ambient temperature remains within rating.