SEW USS21A

SEW USS21A | Serial Interface Module for SEW MOVIDRIVE® B Drives

Overview

The SEW USS21A is a compact and powerful RS-232/RS-485 interface converter designed for SEW-EURODRIVE MOVIDRIVE® B frequency inverters. It enables seamless communication between SEW drives and external devices such as PCs or PLCs for real-time diagnostics, parameterization, and firmware updates.

Key Features

• Dual Protocol Support: RS-232 (Sub-D 9-pin) and RS-485 (terminal block)

• MOVITOOLS® Compatible: Ideal for use with SEW’s configuration and diagnostic software

• Plug-and-Play: Installs easily into the inverter’s TERMINAL option slot

• Baud Rate: Fixed 9600 baud

• Network Capability: Supports up to 16 devices on an RS-485 bus

• Compact Design: Lightweight and low-profile for easy panel integration

Technical Specifications

• Model Number: USS21A

• Part Number: 8229147.10

• Interface: RS-232 / RS-485

• Connector Types:

  • RS-232: 9-pin Sub-D (female)

  • RS-485: Screw terminal block

• Baud Rate: 9600 bps

• Mounting: Directly on MOVIDRIVE® B inverters

• Dimensions (W x H x D): ~120 mm x 85 mm x 29 mm

• Operating Temperature: 0°C to +50°C

• Enclosure Rating: IP20

Applications

• Commissioning and diagnostics of SEW MOVIDRIVE® inverters

• Connecting SEW drives to a PC or PLC

• Multi-drive systems requiring serial communication

• Firmware updates and backup/restore operations

• Simple Modbus RTU integrations

Why Choose the USS21A?

• Reliable Data Exchange: Stable and noise-resistant serial interface

• Easy to Use: Plug-in setup and standard baud rate simplify configuration

• Versatile Connectivity: Supports both point-to-point and multi-drop topologies

• SEW Certified: Fully supported by SEW tools and documentation

• Compact and Durable: Built for industrial environments

Order Now

The SEW USS21A serial interface is in stock and available for fast global delivery. 

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply