Product Description:

The CSB01.1C-PL-ENS-EN2-NN-S-NN-FW control section belongs to the CSB Drive Controllers series manufactured by Bosch Rexroth Indramat. It plugs into a modular drive rack and supplies the processing resources that close current, speed, and position loops for a single servo axis. In industrial automation, this card converts sensor, command, and encoder data into switching patterns for the power stage, enabling coordinated motion in packaging, assembly, or material-handling equipment. It handles the control functions of the axis while the matching drive hardware delivers power to the motor.

This section executes its inner current loop every 125 µs, allowing fine torque regulation. Speed feedback is updated on a separate loop that runs every 250 µs, while position correction is refreshed at 500 µs. These synchronized intervals help keep motion stable when load conditions change during operation. PWM switching takes place at 4 kHz, which sets the resolution of voltage modulation delivered to the power stage. The EN2 incremental encoder signals are processed through a 12-bit converter so the controller can quantize 4096 discrete states per capture. One built-in analog input, two analog outputs, three configurable I/O points, and five standard digital inputs cover local tuning tasks, while the PL layer adds sixteen digital inputs and sixteen digital outputs for step-sequence functions and inter-axis handshaking.

The EN2 interface provides the encoder with 11.6 V at up to 350 mA, eliminating the need for an external supply. Incoming differential tracks are accepted at frequencies as high as 1000 kHz, so high-speed feedback does not saturate the capture logic. A form-C relay built onto the board is rated for 24 V DC / 1 A and can route ready or fault signals to external control circuits. This relay can also provide a simple isolated contact for machine status signaling. The control section can therefore manage feedback processing and local signal exchange within the same rack-mounted assembly.