R911203640 is part of the RD51 Drive Control Devices Series by Indramat Drives.
Specs
Product Name: Drive Controller Construction: Module-based Power Supply: Rectifier and supply modules Operator Control Terminal: Yes Visualization: RDwin PC user interface Serial Interfaces: RS232 and RS485 Other Interfacing Options: CAN bus, Sercos, Profibus DP, Interbus S Shipping: Global