R911284894 is part of the DDS Drive Controllers Series by Indramat Drives.
Version: 1 Communication Module: SERCOS plug-in Power Supply: 24V DC Current Rating: 100A DC Bus Voltage: 300V ±15% Mounting: Control Cabinet Protection Rating: IP 10 per DIN 40 050 Cooling Method: Heat technology Feedback Option: Digital Servo or Resolver Feedback Firmware Support: Yes (must be ordered separately)