Description
SEW MOVITRAC-31C008-503-4-00
Technical Specifications: Rated motor power: 0.75kW Three-phase input voltage: 380VAC – 500VAC Control mode: V/F scalar control Protection class: IP20 Ambient operating temperature: 0℃ ~ +45℃ Cooling method: Natural air cooling
Functional Features: Vertical DIN rail installation inside electrical cabinet IP20 protection grade only for cabinet interior Built-in hardware protection: overcurrent, overvoltage, undervoltage, overtemperature, earth fault and short-circuit protection Multi-channel digital input terminals and analog I/O terminals Automatic motor parameter identification function Multi-section fixed speed selection function Supports analog voltage or current signal for speed reference setting Relay contact output for fault alarm signal Simple front panel for parameter modification and status viewing
Application Scenarios: Small conveyor belt drive Small fan energy-saving speed regulation Mini water pump flow adjustment Light load auxiliary transmission of packaging machinery Small mixing equipment drive
Performance Parameters: Output frequency range: 0Hz ~ 500Hz Overload capacity: 150% rated current for 60 continuous seconds V/F speed control accuracy ±1% Adjustable acceleration and deceleration ramp time
Material Composition: Cold rolled steel sheet housing with powder coating anti-corrosion treatment Multi-layer industrial grade PCB main control board IGBT power inverter module NTC temperature monitoring sensor Copper power terminals Flame-retardant plastic signal terminal base DC bus electrolytic capacitors
Structural Characteristics: Vertical modular compact structure DIN rail buckle and screw mounting holes on rear side Front panel with LED indicators for running status and fault status Main power wiring terminals arranged at upper part, control signal terminals arranged at lower part Built-in small heat sink inside housing
Working Principle: Three-phase alternating current input enters rectifier circuit and converts into stable DC bus voltage. IGBT power module outputs three-phase alternating current with adjustable voltage and adjustable frequency to drive asynchronous motor. V/F scalar control maintains fixed voltage-frequency ratio according to speed set value without rotor position feedback. Hardware protection circuit cuts off power output and triggers fault indication once abnormal working condition occurs.
Installation Requirements: Only vertical upright installation inside closed electrical cabinet, inverted or horizontal installation is forbidden Reserve enough upper and lower ventilation clearance to ensure heat dissipation Separate wiring routing for power cables and control signal cables Input power supply voltage must match the rated voltage marked on nameplate Installation environment must exclude dust, corrosive gas and condensed water vapor PE protective earth terminal must be fastened firmly
Precautions for Use: Wait at least 5 minutes after power off for DC bus capacitor full discharge before opening cover for inspection and maintenance Verify input power voltage against nameplate specification before power on Complete motor parameter identification procedure during equipment commissioning Capacitors and surge absorbers cannot be connected in parallel at inverter output terminals Clean dust on heat sink regularly to avoid overtemperature fault Short-circuit of terminals is prohibited
