Overview
The SEW-Eurodrive MOVIDRIVE MDX61B0900-503-4-00 is a high-power 90kW configurable frequency inverter built for demanding industrial automation applications. It runs on a 3-phase 380–500VAC supply (50/60Hz) and delivers 118kVA of output power with a rated output current of 170A — placing it among the largest units in the MOVIDRIVE B series. It supports both asynchronous AC motors and synchronous servo motors, giving it real flexibility across different motor technologies within a single drive platform.
As part of the modular MDX61B design, this drive supports flexible expansion through encoder option cards (DEH11B, DER11B, DEU21B) and communication option cards (PROFIBUS DP, EtherCAT, INTERBUS-S, CAN, and others), so it can be configured precisely to your automation network and feedback requirements. The standard version includes SEW’s integrated IPOSplus® positioning and sequence control system, while the application (“0T”) variant adds electronic cam and internal synchronous operation functions for more advanced motion coordination.
Built-in four-quadrant operation with a brake chopper handles regenerative energy feedback during braking, and for installations needing to return that energy to the mains, an optional MDR60A/61B regenerative power supply unit can be added. Safety is covered by an integrated STO (Safe Torque Off) function compliant with SIL 3 / PLe standards — a meaningful feature for high-power equipment where certified safe stopping matters.
Understanding the Model Code
- MDX — MOVIDRIVE® inverter family
- 61 — Series supporting modular expansion (vs. “60,” the non-expandable base version)
- B — Latest generation version
- 0900 — Recommended motor power of 90kW
- 5 — AC 380–500V mains voltage
- 03 — Built-in EMC filter, Class C2
- 3 — Three-phase input
- 4 — Four-quadrant operation with built-in brake chopper and regenerative feedback
- 00 — Standard version (vs. “0T” application version with electronic cam and synchronous operation)
Key Features
- 90kW Power Rating — High-capacity output for the most demanding industrial motor applications
- Configurable, Modular Design — Custom setup with optional fieldbus and encoder expansion cards
- Four-Quadrant Operation — Built-in brake chopper with regenerative energy feedback
- Integrated STO Safety Function — SIL 3 / PLe compliant for certified safe operation
- Dual Motor Support — Compatible with both asynchronous AC motors and synchronous servo motors
- Integrated IPOSplus® Control — Onboard positioning and sequence control as standard
- Optional Regenerative Feedback to Mains — Supports pairing with MDR60A/61B units for full energy recovery
Applications
- Manufacturing — Conveyors, mixers, fans, and pumps
- Logistics & Warehousing — Automated storage systems and hoists
- Precision Processing — Textile tension control, printing registration, metal rolling
- Energy Management — Wind power and photovoltaic system applications
- Building Automation — HVAC, lifts, and ventilation systems
Full Specifications
| Parameter | Value |
|---|---|
| Brand | SEW-Eurodrive |
| Series | MOVIDRIVE B |
| Model | MDX61B0900-503-4-00 |
| Input Voltage | 3-phase, 380–500 V AC (50/60 Hz) |
| Output Power | 90 kW (118 kVA) |
| Rated Output Current | 170 A |
| Motor Support | Asynchronous AC motors and synchronous servo motors |
| Safety Function | STO, SIL 3 / PLe compliant |
| Operating Quadrants | 4Q (built-in brake chopper, regenerative feedback) |