Description
SEW MDX61B0370-503-4-0T/DEH11B/DFE24B
Technical Specifications: Rated motor power: 37kW Three-phase input voltage: 380VAC – 500VAC, 50-60Hz Control modes: U/f control, VFC open-loop flux control, CFC closed-loop vector control, servo control Included cards: DEH11B encoder acquisition card, DFE24B fieldbus communication card Built-in brake chopper, four-quadrant operation Protection class: IP20 Ambient operating temperature: 0℃ ~ +45℃ Cooling method: Forced air cooling Separate 24VDC control supply, keeps parameters and communication alive after main circuit power loss
Functional Features: Modular split board design with pluggable control card and expansion cards Complete hardware protection including overcurrent, overvoltage, undervoltage, overheating, earth fault, output short-circuit and encoder signal failure DEH11B card supports incremental, HIPERFACE absolute encoder signal acquisition DFE24B card enables fieldbus communication with the host controller for remote motion command Multiple isolated digital inputs and digital outputs including relay output, PTC motor temperature detection supported Automatic motor parameter identification, parameter backup and restore Built-in absolute and relative positioning, electronic gearing, electronic cam, flying-shear functions Integrated STO Safe Torque Off safety function Comprehensive fault log and operating-data storage DC bus interconnection terminals for shared energy among multiple drives Side expansion slots for additional option cards DBG60B operator panel and MOVITOOLS software for commissioning, monitoring and diagnostics
Application Scenarios: Heavy packaging production line main servo drive Large printing press roller synchronization Metal plate processing equipment positioning drive Extrusion production line main drive system Automated heavy gantry system servo drive
Performance Parameters: Output frequency range: 0Hz – 600Hz Overload capacity: 150% rated current for 60 continuous seconds Closed-loop speed control accuracy ±0.01% Independent adjustable acceleration and deceleration ramps, S-curve supported Torque limiting and pure torque control mode High-speed encoder signal sampling, supports multiple encoder types Supports electronic gearing synchronization and flying-shear control
Material Composition: Cold-rolled steel sheet housing with powder-coating anti-corrosion treatment Multi-layer industrial PCB control and power boards, high-power IGBT inverter module, NTC temperature sensor DEH11B and DFE24B independent expansion PCB cards Gold-plated signal terminals, thickened copper power terminals Flame-retardant plastic brackets, large-capacity high-voltage electrolytic capacitors Metal heat sink with cooling fan assembly
Structural Characteristics: Modular structure combining drive body and expansion cards Heavy-duty screw holes on the rear panel, vertical cabinet installation Front LED indicators for running, fault and bus status High-current power terminals in upper zone, control signal terminals in lower zone Expansion cards plug into the side slot with metal shielding cover Power cavity and signal cavity physically isolated to reduce electromagnetic interference Detachable terminal blocks, DC bus interconnection terminals
Working Principle: Three-phase AC power enters the main circuit. The rectifier unit converts it into a DC bus voltage. The IGBT inverter unit outputs adjustable three-phase AC to drive the motor. The DEH11B card acquires encoder position and speed signals and feeds them to the control unit for closed-loop vector control. The DFE24B bus card handles data exchange between the host controller and the drive, receiving positioning, speed and torque commands. Regenerative energy during deceleration is dissipated by the brake chopper into the external brake resistor. On fault, the hardware circuit cuts power output and saves fault codes. Multiple drives can be interconnected through the DC bus to share regenerative energy.
Installation Requirements: Vertical upright screw installation only inside a closed electrical cabinet, inverted or horizontal installation forbidden Reserve sufficient cooling space, keep fan outlet unobstructed Separate routing for power cables, encoder cables and communication cables, all signal cables shielded Input voltage matches nameplate rating Cabinet environment free of dust, corrosive gas and condensation PE earth terminal firmly connected to ground busbar Encoder and bus cables use SEW dedicated shielded cable Fit metal shielding cover properly after expansion card installation
Precautions for Use: Wait at least 15 minutes after power-off for capacitor discharge before opening the cover or plugging cards Verify three-phase input voltage balance before power-on Complete motor identification during commissioning No parallel capacitors on the output side Clean heat sink and fan dust regularly to prevent overtemperature shutdown Implement ESD protection when plugging DEH11B, DFE24B cards External brake resistor must match drive rating, brake terminal short-circuit prohibited STO safety wiring strictly follows the official safety manual
