R911267291 is part of the DDS Drive Controllers Series by Indramat Drives.
Firmware location: Software module on Slot U5 Command communication module: Slot U1, Interbus-S support Rated output: 30 Amps Air inlet: Bottom side Air outlet: Top side Minimum spacing for cooling - top side: 80mm Minimum spacing for cooling - bottom side: 80mm Minimum spacing for cooling - front side: 40mm Feedback system: Digital Servo Feedback Dimensions: 355mm x 70mm x 325mm Ambient temperature for rated output: 0 to 45 degrees Celsius.