R911309991 is part of the CSH Advanced Control System Series by Indramat Controls.
Specs
Primary Use: IndraDrive drive control units Customizable Functions: Yes Expandable: Yes, with retrofittable plug-in modules External Interface: RS232 and RS485 serial interfacing Input Slots: 7 Configurable I/Os: 4 Master Communication: CANopen and DeviceNet interfaces Control Options: Precise speed control with RSF/HSF interfacing