Product Description:

The CSH01.1C-PB-ENS-EN1-MD1-S1-S-NN-FW is a motion-logic controller module built by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Installed in IndraDrive power sections, it executes drive control, safety, and fieldbus tasks for servo axes in automated machinery. By combining communication, sensor processing, and digital I/O on one plug-in card, the unit coordinates real-time motion sequences, monitors feedback devices, and exchanges status data with supervisory PLCs across the plant network. Because the controller is integrated into the drive platform, it keeps axis control functions close to the power electronics and reduces the need for separate external interface hardware.

Field-level integration is handled through PROFIBUS-DP, allowing the controller to receive setpoints and deliver diagnostics on a deterministic bus. The embedded ENS interface digitizes incremental encoder signals with a cutoff frequency of 500 kHz, supports 12-bit resolution, and powers the sensor with 11.6 V at up to 500 mA. Its input circuit has an impedance of 120 Ω for proper line termination. On the machine side, the MD1 extension provides 12 configurable digital inputs and 8 sourcing outputs for limit switches, sensors, and relays. Functional safety circuits draw only 3 mA at each safety input and can switch external contactors with a maximum safety output current of 0.5 A, supporting category-compliant stop functions without extra relays. This arrangement lets machine sensors and actuator interlocks connect directly to the control section without a separate remote I/O block.

The separate EN1 channel accepts high-speed feedback from Hiperface sensors. It offers a 10 kΩ input resistance, supplies 250 mA at 8 V to the transducer electronics, and can process TTL incremental tracks up to 400 kHz. When a resolver is connected, the drive excites the stator winding at 4 kHz with an 18.2 Vpp carrier and demodulates the returned sine and cosine signals to calculate absolute shaft position. That combination supports precise position evaluation during low-speed holding tasks as well as fast dynamic moves. These capabilities let the controller synchronize motion during rapid starts and reversals without overloading the encoder power rail.