Product Description:

The CSH01.1C-S3-ENS-EN2-MD2-L2-S-NN-FW control section belongs to the CSH Advanced Controllers series from Bosch Rexroth Indramat. Installed inside an IndraDrive modular inverter, this unit orchestrates axis motion, handles fieldbus data, and routes local I/O so automated machines can execute coordinated tasks on assembly, packaging, or processing lines. It also manages encoder evaluation, command processing, and internal signal routing so the connected power stage can respond quickly to position or speed changes while maintaining the timing needed for synchronized motion across multiple axes.

Communication with higher-level controllers is handled through SERCOS III, allowing deterministic cyclic data exchange. For local analog signaling, it delivers up to 5 V / 1 mA; this low-power channel can feed speed references or diagnostic meters without overloading the interface. Discrete sensors are accepted at a logic threshold of 24 V / 3 mA, while commands back to external devices are driven at 24 V / 0.5 A, which is enough to energize contactors or status lamps directly. The secondary encoder socket, labeled En2, is supplied with 5 V and recognizes EnDat 2.1, 1 Vpp, or 5 V TTL feedback formats, enabling the controller to close position loops with a wide range of absolute or incremental transducers.

The MD2 expansion resources extend the I/O profile. The module combines digital I/O and SSI feedback on a D-Sub HD 44-pin connector, arranged in two input groups and four output groups that together provide 16 input channels and 16 output channels. For electromechanical interfacing, an onboard relay can switch up to 24 V DC / 1 A. Parameter cloning or service diagnostics over RS-232 are possible through a mini-DIN 8-pin female port, and the permitted cable length reaches 15 m without signal conditioning. Functional safety is integrated through Safe Torque Off, which disconnects drive power through a 9-pin female D-Sub when the safety circuit opens and eliminates motor torque within milliseconds.