Description
SEW MC07B0075-5A3-4-00
Technical Specifications: Rated motor power: 7.5kW Three-phase input voltage: 380VAC – 500VAC Control mode: VFC open-loop flux vector control Built-in brake chopper Protection class: IP20 Ambient operating temperature: 0℃ ~ +45℃ Cooling method: Forced air cooling with built-in fan
Functional Features: Vertical DIN rail installation inside electrical cabinet IP20 protection grade for cabinet internal application Full set of hardware protection including overcurrent, overvoltage, undervoltage, overtemperature, earth fault and short-circuit protection Multiple digital input and analog I/O terminals Automatic motor parameter identification Multi-step speed switching function Supports analog voltage or current speed reference Relay fault signal output contact Front panel LED indicators for operation and fault state Supports optional communication expansion modules
Application Scenarios: Medium-duty material conveyor drive Industrial fan energy-saving speed control Water pump flow regulation Packaging machine main auxiliary transmission Woodworking machinery feeding drive
Performance Parameters: Output frequency range: 0Hz ~ 500Hz Overload capacity: 150% rated current for 60 continuous seconds Open-loop VFC speed control accuracy ±0.5% Adjustable acceleration and deceleration ramp time
Material Composition: Cold rolled steel powder coated housing Multi-layer industrial PCB control board High-power IGBT power module NTC temperature sensor Copper power terminals, flame-retardant plastic signal terminals Large-capacity DC bus electrolytic capacitors Metal heat sink assembly
Structural Characteristics: Vertical cabinet mounting structure with rear DIN buckle and screw fixing holes Front panel LED running and fault indicator lamps Upper section for main power wiring terminals, lower section for control signal terminals Built-in cooling fan and metal heat sink inside housing
Working Principle: Three-phase AC input passes rectifier circuit and converts to DC bus voltage. IGBT module outputs variable voltage variable frequency three-phase AC to drive asynchronous motor. VFC open-loop flux control calculates required output voltage and frequency according to speed command without rotor position feedback. Regenerative energy generated during motor deceleration flows through built-in brake chopper and dissipates on external brake resistor. Fault condition triggers hardware shutdown and activates fault alarm indication.
Installation Requirements: Vertical installation inside closed electrical cabinet, inverted installation is prohibited Reserve sufficient cooling clearance and do not block cooling fan air channel Separate routing for power cable and control cable Input voltage must match the nameplate rating Avoid dusty, humid and corrosive installation environment PE protective earth connection must be tight and reliable
Precautions for Use: Wait at least 10 minutes after power off for capacitor discharge before opening cover for maintenance Check input power voltage before power-on operation Complete motor identification procedure during commissioning No parallel capacitors allowed on inverter output terminals Clean cooling fan and heat sink dust periodically Brake terminals cannot be short-circuited
