R911338478 is part of the HCS Compact Converters / Drive Controllers Series by Indramat Drives.
Specs
Purpose: Control of Industrial Motors Quality Certification: Yes Noise Level: Low Temperature Regulation: Forced Ventilation Installation: By Trained Engineers Firmware Module: Not Included Encoder Interfaces: Two Multi-Encoder Interfaces Communication Interface: SERCOS III Master Safety Features: Safe Brake Control and Safe Torque Off Voltage: 110 to 230 volts