Product Description:

The CSH01.1C-NN-EN1-NNN-MEM-NN-S-NN-FW is a control section produced by Bosch Rexroth Indramat for the CSH Advanced Controllers series. It plugs into an IndraDrive power unit and supplies axis logic, analog acquisition, and resolver or HSF feedback processing so that drives in an automation cell can be coordinated in real time. By combining signal conversion with onboard diagnostics, the module serves as the central link between field devices and higher-level motion sequences in industrial automation.

The two differential analog channels accept an input span of ±10 V, and their front-end impedance is 160 kΩ, which minimizes loading on external sensors while helping keep noise low. Resolver and HSF feedback arrive through the dual encoder interface, where the high-speed feedback converter operates at 12-bit resolution and uses a dedicated 8 V supply rail. When the unit is first powered, the DC-link filter draws an inrush of 4 A, so cabinets must use appropriately rated breakers. The unit does not include master communication, so networking is established through the drive bus. The housing is 49.5 mm wide, 103 mm deep, and 241 mm high, allowing dense stacking on DIN rails without obstructing airflow.

For downstream control, the MEM output stage sources up to 20 mA at carrier frequencies to 1 MHz, enabling position latches or high-speed capture inputs on companion drives. Steady-state demand on the control cabinet supply is limited to 7.5 W, which helps keep cabinet heat generation low during continuous operation. Feedback excitation is produced as a 4 kHz resolver sine, while an 18.2 Vpp carrier supports precise angle decoding. A 100 ms inrush pulse width is also used when selecting fuse protection, and the frame depth helps streamline wiring paths behind the card. Because the module lacks a built-in fieldbus master, expansion nodes are handled by external communication modules when applications require additional protocol layers.