SEW 31B040-503-4-00 MOVITRAC B Frequency Inverter

Technical SpecificationsModel:31B040-503-4-00 Brand:SEW Product type:MOVITRAC B Cabinet Frequency Inverter Weight:1.40kg Dimension:180mm110mm150mm Rated input voltage:380~500VAC,3 phase,50/60Hz Rated power:4.0kW Rated output current:8.8A Protection class:IP20 Operating temperature:0℃ ~ 60℃ Storage temperature:-40℃ ~ +85℃ Relative humidity:5%~85%,non-condensing Certification:CE

System compatibility31B040-503-4-00 is SEW MOVITRAC B series cabinet-mounted frequency inverter. It is designed for driving three-phase asynchronous motors,matched with operation panel and optional brake module. Widely used in conveyor,pump,fan and material handling equipment,for maintenance and spare replacement of legacy SEW drive systems.

Function31B040-503-4-00 is compact standard inverter of SEW MOVITRAC B series. It adopts V/F control algorithm,receives analog speed reference and digital run/stop signals,generates PWM three-phase output to adjust motor speed. It samples DC bus voltage,output current and power module temperature signal,realizing overcurrent,overvoltage,undervoltage and overtemperature protection. It supports local parameter setting via front panel keypad,stores operating data and fault history. Built-in basic EMC suppression circuit to reduce electromagnetic interference. Terminal block for power and signal wiring,LED indicators on front cover.

InstallationPower off the AC main power supply before installation. Mount 31B040-503-4-00 vertically inside control cabinet on metal backplate with fixing screws. Keep upper and bottom clearance for heat dissipation. Separate power input cable,motor cable and low-voltage control wiring. Complete wiring according to terminal definition. Power on the inverter,input motor nameplate parameters,test motor start,stop and speed adjustment function.

Interface3-phase AC power input terminal,3-phase motor output terminal,analog/digital I/O terminal,fault relay output,keypad socket,shield grounding terminal,LED status indicators.

FeatureSEW 31B040-503-4-00 IP20 compact inverter. Stable V/F open-loop speed regulation. Integrated multi-protection functions. Simple terminal wiring and easy parameter commissioning. LED indicators for running and fault status. Discontinued obsolete drive,supply only for legacy MOVITRAC B inverter spare replacement. Suitable for logistics conveyor,packaging machinery renovation and maintenance.

DiagnosticMotor no rotation:power wiring error or parameter misconfiguration; Inverter trip frequently:overload or current sampling fault; No display:input power missing; Speed unstable:analog reference interference; Intermittent shutdown:internal component aging or loose terminal contact.

Product BriefSEW 31B040-503-4-00 is MOVITRAC B 4.0kW 380~500V cabinet inverter. It adopts V/F control for three-phase asynchronous motor speed regulation,widely used as spare part for legacy SEW conveyor drive system maintenance.

DisclaimerAll parameters are for reference only and not the basis of quotation. Goods are scarce,overseas delivery lead time 3-7 working days. It is only used for equipment maintenance and retrofit.