SEW DFY71L-TH Synchronous Servo Motor

Technical SpecificationsModel:DFY71L-TH Brand:SEW Product Type:Permanent Magnet Synchronous Servo Motor Frame size:71L Cooling:Natural convection Protection class:IP65 Insulation class:F Temperature protection:TH thermal sensor Operating voltage:400V class Operating temperature:-20℃ ~ +40℃ Storage temperature:-40℃ ~ +85℃ Relative humidity:5%~85%,non-condensing Certification:CE

System compatibilityDFY71L-TH belongs to SEW DFY series synchronous servo motor. Compatible with SEW MOVIDRIVE MDX60B, MDX61B servo drives. Widely used for packaging machinery, rotary tables, portal axes and automated assembly lines, legacy SEW servo system maintenance and spare replacement.

FunctionDFY71L-TH is low inertia synchronous servo motor for dynamic motion control. Built-in TH thermal sensor monitors winding temperature continuously to prevent overheating damage. It delivers high peak torque for fast acceleration and deceleration, suitable for high dynamic positioning applications. It can be assembled with SEW gear reducers for higher torque output.

InstallationDisconnect drive power before installation. Mount motor by flange or foot mounting. Align coupling or gear unit carefully, avoid excessive radial and axial load. Separate power cable and feedback cable to reduce electromagnetic interference. Wire TH thermal protection circuit to servo drive. Perform motor identification before commissioning.

InterfacePower connector, resolver feedback connector, TH thermal sensor terminals.

FeatureSEW DFY71L-TH compact low inertia servo motor, fast dynamic response. Built-in TH thermal protection for winding overheat monitoring. IP65 enclosure, dust-proof and splash-proof, suitable for workshop environment. F class insulation for stable continuous operation. Discontinued legacy spare part, only for DFY series servo motor maintenance replacement. Suitable for automation positioning axes and packaging equipment.

DiagnosticMotor overheat alarm: overload, poor ventilation or damaged TH sensor; Tracking error alarm: resolver wiring fault or resolver damage; No torque output: loose power connector or winding failure; Vibration and abnormal noise: shaft misalignment or bearing wear.

Product BriefSEW DFY71L-TH is DFY series 71L frame permanent magnet synchronous servo motor fitted with TH thermal sensor, matched with MOVIDRIVE servo inverters for high dynamic industrial motion control.

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.