SEW 31C011-503-4-20 MOVITRAC 31C Frequency Inverter

Technical SpecificationsModel:31C011-503-4-20 Brand:SEW Product type:MOVITRAC 31C Cabinet Frequency Inverter Weight:0.95kg Dimension:160mm90mm130mm Rated input voltage:380~500VAC,3 phase,50/60Hz Rated power:1.1kW Rated output current:3.1A Protection class:IP20 Operating temperature:0℃ ~ 60℃ Storage temperature:-40℃ ~ +85℃ Relative humidity:5%~85%,non-condensing Certification:CE

System compatibility31C011-503-4-20 is SEW MOVITRAC 31C series cabinet-mounted frequency inverter. It is designed for driving three-phase asynchronous motors,matched with operation panel and optional brake module. The suffix -20 represents special software firmware version,different from standard 00 version,please confirm program version before replacement. Widely used in conveyor,pump,fan and material handling equipment,for maintenance and spare replacement of legacy SEW drive systems.

Function31C011-503-4-20 is compact inverter of SEW MOVITRAC 31C series with customized firmware. 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 31C011-503-4-20 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. Verify firmware version matches original unit before commissioning.

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 31C011-503-4-20 IP20 compact inverter with special firmware. 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 31C inverter spare replacement. Suitable for logistics conveyor,packaging machinery renovation and maintenance. Firmware version must be confirmed prior to swap.

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; Mismatched function:firmware version inconsistent with original drive.

Product BriefSEW 31C011-503-4-20 is MOVITRAC 31C 1.1kW 380~500V cabinet inverter with customized firmware. It adopts V/F control for three-phase asynchronous motor speed regulation,widely used as spare part for legacy SEW conveyor drive system maintenance. Firmware version -20 differs from standard 00 variant.

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.