Product Description:

The CSB01.1C-PB-ENS-MEM-NN-S-NN-FW control section is produced by Bosch Rexroth Indramat for the CSB Drive Controllers series. Installed in a modular drive stack, it coordinates servo axes and conveys motion data to higher-level PLCs. Within an automation cell, the unit functions as the processing core that closes current, velocity, and position loops for electric drives, enabling deterministic motor control in assembly lines, packaging machines, and material-handling equipment. Its compact card format allows the electronics to be exchanged without disturbing the power stage.

The section manages one servo channel, with an axis count of 1, so its regulation resources are dedicated to a single mechanical load. Field communication occurs through PROFIBUS-DP, and telegrams move across the network at 12 MBaud, a rate that supports synchronized motion groups. Internally, the current loop updates every 125 µs, allowing fine torque modulation before the velocity and position loops respond. Pulse-width modulation on the board switches at up to 8 kHz, which helps reduce ripple current and audible motor noise. A 12-bit converter handles incremental feedback, and selectable IndraDyn, HIPERFACE, 1 Vpp, or TTL channels are presented through a 120-ohm differential input so signal integrity is maintained.

For diagnostics, the integrated emulator can stream position data with a peak frequency of 1 MHz while sourcing up to 20 mA, so external test equipment receives a clean square wave. Sensors powered from the board receive 11.6 V DC at up to 500 mA, eliminating the need for a supplemental supply during wiring. The control section has a depth of 103 mm and a height of 241 mm, which supports installation in shallow control cabinets. Because the unit has no integrated safety option, external STO or guard monitoring is required where safety functions are needed.