The CSB Drive Controllers series are BASIC control units used with Rexroth IndraDrive power sections to control and monitor electric motors in industrial single-axis drive tasks.
The range includes variants for open-loop frequency-converter applications without an encoder, where the target speed is set through analog or digital inputs and status/diagnostic signals are provided through digital outputs or isolated relay contacts. For analog-controlled systems, CSB “BASIC ANALOG” versions use a conventional ±10 V speed setpoint interface while still providing digital control signals and encoder emulation outputs in either incremental format or SSI to supply actual value information to the higher-level control. The series also offers fieldbus communication variants such as PROFIBUS and SERCOS (fiber-optic) to cyclically exchange target/actual values plus diagnostics with the control system, supporting short cycle times and synchronized multi-drive operation in the SERCOS configuration. Across configurations, CSB control units support commissioning via a standard operator panel or a PC running IndraWorks through an RS232 service interface, and they can be equipped with integrated safety options such as Safe Torque Off.