Product Description:

The CSB01.1C-PB-ENS-MEM-L2-S-NN-FW is a command module within the CSB Drive Controllers series produced by Bosch Rexroth Indramat. Installed in a modular inverter rack, the card manages axis control loops and fieldbus communication for electric drives used in packaging machines, material handling lines, and similar automation cells. By combining motion processing with integrated safety, the unit acts as the central interface between the power electronics, feedback devices, and higher-level PLCs. This arrangement lets one module coordinate command signals, feedback evaluation, and safety status within the same control platform during synchronized machine operation.

On the communication side, the module provides a PROFIBUS interface that exchanges cyclic data over a D-Sub 9-pin female connector and can power an external repeater with up to 75 mA at 5 V. The internal current loop is refreshed every 125 µs, allowing tight torque regulation at the inverter stage. For pulse-width modulation, the gate drivers can be switched up to 8 kHz, a frequency that balances acoustic noise with motor performance. The ENS encoder port supplies 11.6 VDC at up to 500 mA to absolute encoders and accepts differential TTL feedback signals up to 400 kHz, so high-resolution position data reach the controller without phase loss. Depth is limited to 103 mm, which helps the board fit compact cabinets and closely spaced drive assemblies.

The MEM output delivers position compare pulses at 1 MHz, supporting electronic gearing and camming that require sub-microsecond timing. Functional safety is implemented through Safe Torque Off (SIL3 / Cat. 3 PL e); the STO input accepts a 24 V, 3 mA control signal and is confirmed by an independent 24 VDC, 1 A acknowledgment path. The overall unit height is 241 mm, letting it clear adjacent modules in a standard CSB rack without interfering with neighboring cards. Separate motion and safety connections allow the module to handle position-related switching tasks while maintaining a dedicated confirmation channel for torque shutoff.