R911391823 is part of the CSB Drive Controllers Series by Indramat Drives.
Specs
Product Type: Control Section Range: BASIC Interface Equipment: Extended Scope Slots: Three optional slots Master Communication Module: Multi-Ethernet Field Bus System Supported Ethernet Field Bus Systems: SERCOS III, EtherCAT, EtherNet/IP, or PROFINET IO Module Connection Point Compliance: IEEE 82.3 standard Control Section Indicators: LEDs for field system connection status Encoder System Voltage Ratings: 5V and 12V Safety Technology Module: Safe Torque Off (STO)