Description
Core Product Summary
The SEW-Eurodrive DFE32B is a dedicated PROFINET IO fieldbus option card designed to integrate SEW drive inverters into high-speed, real-time industrial Ethernet networks. Installed directly into the fieldbus option slot of compatible drive units, the module enables deterministic communication between higher-level PLCs, such as Siemens SIMATIC controllers, and SEW frequency inverters.
Featuring two integrated RJ45 ports with an internal switch, the DFE32B supports flexible line and ring network topologies without requiring external switches. It handles cyclic process data exchange (such as setpoints and control words) alongside acyclic parameter access via the MOVILINK and PROFIdrive profiles. An integrated web server and diagnostic LEDs provide real-time operational status, parameter inspection, and network health monitoring.
Key Technical Specifications
| Parameter | Specification |
| Product Type | PROFINET IO Fieldbus Interface Module |
| Manufacturer | SEW-Eurodrive |
| Fieldbus Protocol | PROFINET IO RT (Real-Time) |
| Physical Interface | 2 × RJ45 ports (integrated 2-port switch) |
| Supported Drive Families | MOVIDRIVE MDX61B, MOVITRAC B |
| External Supply Voltage (X26) | 24 V DC (-15%, +20%) |
| Maximum Supply Current | 200 mA DC |
| Supported Communication Profiles | MOVILINK, PROFIdrive |
| Degree of Protection | IP20 |
| Ambient Operating Temperature | -10 °C to +60 °C |
| Storage Temperature | -25 °C to +70 °C |
| Dimensions (Approx.) | 95 mm × 105 mm × 22 mm |
| Weight | ~0.11 kg |
| Certifications & Compliance | CE, UL, cUL |
Detailed Product Overview
The DFE32B option card serves as the primary communication bridge for SEW drive systems operating on PROFINET IO automation backbones. By mounting inside the drive’s option slot, the card connects the drive inverter logic directly to the industrial network, enabling centralized control of speed, torque, positioning parameters, and internal drive status reporting.
Equipped with a dual-port RJ45 Ethernet switch, the module allows daisy-chaining drive units along a single line topology, minimizing external switch infrastructure and panel wiring overhead. The onboard web server provides access to drive parameters and network diagnostics directly through a standard web browser, streamlining commissioning and field troubleshooting.
The card manages cyclic process data transfer for real-time motion control while supporting acyclic parameter access via Index 47 datasets for commissioning and diagnostic updates. Front-panel LED indicators give immediate visual status of physical link state, network activity, bus faults, and module readiness.
DFE32B
DFE32B
Dimensions, Mounting & Connection Notes
- Installation Location: Inserts directly into option slot 0 (or option slot position) on MOVIDRIVE B / MOVITRAC B drive backplanes.
- Alternative Housing: Can be mounted externally in a UOH11B gateway enclosure.
- Physical Dimensions: Approximately 95 mm (H) × 105 mm (D) × 22 mm (W).
- Connectors: Dual front-facing RJ45 female jacks for PROFINET network input and line pass-through.
- Auxiliary Terminal: X26 24 V DC external supply input for maintaining communication status during inverter power-down.
- Degree of Protection: IP20, intended for control cabinet installation.
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
| Compatible Inverters | MOVIDRIVE MDX61B, MOVITRAC B | Fits directly into the designated fieldbus option slot on the inverter. |
| External Gateway Support | UOH11B gateway housing | Allows external mounting as a gateway interface when required. |
| Network Controller | PROFINET IO Controllers (e.g., Siemens SIMATIC S7 series) | Configured using standard GSDML device description files. |
| Fieldbus Cable | Standard industrial RJ45 PROFINET cables (Cat 5e or higher) | Requires shielded twisted-pair industrial Ethernet cabling. |
| Auxiliary Power Supply | 24 V DC backup power via terminal X26 | Maintains fieldbus communication even when main AC power to the drive inverter is disconnected. |
FAQ
What is the function of the SEW-Eurodrive DFE32B module?
The DFE32B is an option card that enables MOVIDRIVE B and MOVITRAC B drive inverters to communicate on PROFINET IO real-time industrial Ethernet networks.
Which SEW drive models support the DFE32B card?
The module is designed for direct installation into MOVIDRIVE MDX61B and MOVITRAC B inverters, or for use inside a UOH11B external gateway housing.
Does the DFE32B support daisy-chain network wiring?
Yes, the module features two integrated RJ45 ports backed by an internal Ethernet switch, supporting line and ring topologies without external network switches.
What is the purpose of the 24 V DC supply terminal (X26)?
Connecting external 24 V DC power to terminal X26 ensures the fieldbus interface remains powered up and active on the PROFINET network even if the main drive inverter power is switched off.
Which communication profiles does the card support?
The card supports MOVILINK and PROFIdrive profiles for cyclic process data exchange and acyclic parameter data access.
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