Product Description:

The CSH01.1C-PB-EN1-NNN-MA1-NN-S-NN-FW is a modular motion-logic controller from Bosch Rexroth Indramat within the CSH Advanced Controllers series. It forms the command layer of IndraDrive systems, executing interpolation, axis coordination, and fieldbus communication for servo drives in automated machinery. By integrating axis feedback, high-speed processing, and network interfaces, the unit governs position, speed, and torque loops while relaying data to higher-level PLCs or HMIs.

Its internal electronics draw 7.5 W, so heat dissipation requirements are minimal for a control cabinet. The EN1 high-speed feedback interface supports bandwidth up to 100 kHz, allowing rapid sampling of high-resolution encoders. Signal loading on that port is limited by an input resistance of 10 kΩ, which protects sensor outputs from excessive current. The same channel sources 8 VDC excitation for the sensor electronics and can supply up to 250 mA, letting it power resolver or HSF/RSF encoder transducers without an external supply. Physical dimensions of 241 mm height, 49.5 mm width, and 103 mm depth permit side-by-side installation next to power modules in an IndraDrive stack.

The controller’s resolver path operates at 4 kHz, ensuring accurate transformation of sine-cosine signals into digital position data even at high motor speeds. It delivers a carrier amplitude of 18.2 Vpp, matching common two-pole resolver requirements. The MA1 analog option board adds two differential inputs and two outputs, each spanning ±10 V with 12-bit conversion, so external force or pressure sensors and proportional valves can be integrated directly. Communication with the machine PLC takes place over PROFIBUS, letting the CSH01.1C exchange cyclic setpoints and diagnostic data on the same fieldbus used by IndraDrive inverters. The unit also includes two I/O channels and has no configured safety option beyond standard STO.