R911277783 is part of the DDS Drive Controllers Series by Indramat Drives.
Product Line: DDS Rated Output: 200 Amps Relative Humidity: Up to 95% Elevation: Up to 1000 meters Ambient Temperature: Up to 40 degrees Celsius Heat Dissipation: Heat Sink Mounted Outside the Drive Cabinet Cabinet Heat Dissipation: 80% Weight: 11 kilograms Product Dimensions: 355x105x325 mm Heat Sink Dimensions: 345x105x160 mm Motor Feedback Mechanisms: Resolver feedback, Digital Servo Feedback Command Communication Module: Supports SERCOS SERCOS Network: Ring Topology SERCOS Version: III Support