R911201384 is part of the RD51 Drive Control Devices Series by Indramat Drives.
Specs
Product Type: Drive Control System Fault Memory: Up to 10 recent faults Monitoring Features: Real-time voltage and frequency Serial Interfaces: RS232 & RS485 Additional Interfacing Options: Profibus, CAN bus, Interbus Communication Enhancement Features: Peer to peer coupling and synchrolink Operator Panel: Supports parameterization Compatibility: Compatible with various external modules Shipping: Global availability.