R911272374 is part of the DDS Drive Controllers Series by Indramat Drives.
Industrial Drive Controller: Function Modular Design: Feature MKD Synchronous Motor, LAF Inductance Linear Motor, MDD Synchronous Motor: Compatible Motors Regulated DC Current: Power Supply Systems TVM1.2: Incompatible Power Supply System Safety Signs and Symbols: Safety Features Internal Air Blower and Heatsink: Cooling System Forced Ventilation: Temperature Regulation Method