Product Description:

The CSH01.1C-S3-ENS-EN2-MD1-L2-S-NN-FW control section is produced by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Installed inside IndraDrive power units, the module acts as the axis processor that links the drive to higher-level automation, supplies local I/O, and manages encoder feedback. It also handles command processing and internal signal exchange so the connected power section can respond to motion instructions in real time. It serves as the plug-in control core for single or multi-axis IndraDrive M and ML converters within packaging, handling, and metal-processing lines, where it delivers coordinated motion control while minimizing additional panel space.

The module exchanges cyclic telegrams over SERCOS III, ensuring microsecond-level determinism for multi-axis synchronization. Two differential analog inputs exhibit an input resistance of 160 kΩ, and their 12-bit converter yields a granularity of 1.23 mV/inc for precise process feedback. The ±10 V analog output is rendered with 19.5 mV/inc resolution, enabling fine velocity or pressure commands. A Digital I/O Extension is integrated, and it provides 12 opto-isolated inputs and 8 high-side transistor outputs that can source up to 500 mA per output. This arrangement allows sensors, switches, and status devices to connect directly to the drive without a separate interface module. For status signaling, one form-C relay contact is included and supports 1 A DC.

For position feedback, the first channel uses Standard Encoder Evaluation and powers the transducer with 12 V. The second channel accepts EnDat 2.1 / 1 Vpp / 5 V TTL encoders and furnishes its own 5 V reference, allowing mixed sensor architectures on the same axis. Functional safety is addressed by Safe Torque Off; the circuit monitors a control level of 24 V yet draws only 3 mA. When the STO input is actuated, drive torque is removed through solid-state logic rather than contactors. One feedback channel can therefore handle standard encoder signals while the other supports alternate encoder formats on the same drive.