Product Description:

The CSH01.1C-PB-EN2-EN1-MEM-S1-S-NN-FW is a control section produced by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Installed inside IndraDrive drive stacks, the module executes axis control, fieldbus communication, and safety monitoring so that servomotors follow commanded motion profiles in automated machinery. By combining localized processing with a Profibus interface, it bridges higher-level PLCs to the power electronics that energize the motor windings. This arrangement lets the control section manage command processing, communication, and safety functions within the same drive stack.

The controller draws a base inrush current of 4 A, limited to a 100 ms pulse so upstream supplies can remain compact. Once energized, its base power consumption is 7.5 W, which minimizes cabinet heat load. Logic circuits operate from a 24 V DC control supply that must stay within standard tolerance bands. Position feedback on the first encoder channel is processed at 4 kHz resolver excitation, and the excitation voltage is generated internally. Profibus traffic passes through a D-Sub 9-pin female connector using EIA-RS485 signaling for deterministic telegram timing. For safe torque off inputs, the S1 channel loads the source with 24 V at 3 mA, while its semiconductor outputs sink 0.5 A at the same voltage. A relay contact rated for 24 V DC / 1 A is available for hardwired interlocks.

Channel two accepts EnDat or similar digital encoders; its regulated output is 5 V, and cable runs may extend to 75 m with sense conductors or 50 m without them. The resolver-based En1 channel distributes 18.2 Vpp excitation for precise angular feedback. Data blocks handled by the MEM interface travel over shielded lines up to 40 m at a transfer clock of 1 MHz. These limits apply to encoder wiring and MEM communication links across the machine.