Product Description:

The CSH02.1B-CC-EC-EM-NN-NN-NN-FW belongs to the CSH Advanced Controllers series from Bosch Rexroth Indramat. It serves as a central motion and logic unit that coordinates multi-axis servo drives through high-speed SERCOS III communication, allowing synchronized positioning, velocity, and torque control in automated machinery and assembly cells. By combining motion coordination and logic handling in one platform, the controller can manage axis interaction and machine sequencing from a single control point. This arrangement supports tightly timed automation tasks without requiring separate standalone motion hardware for each coordinated function.

This controller draws a base power of 17 W from a control supply of 24 V DC, so cabinet thermal planning remains straightforward. The digital input circuits switch to a high state when signals reach 15 V, which simplifies interfacing with standard PLC outputs. For actuator commands, each digital output can source up to 500 mA, and the resulting propagation delay is limited to 800 µs, keeping response times within typical servo loop requirements. Encoder position data are accepted through the built-in Multi-Encoder Interface, while an encoder-emulation channel reproduces feedback for downstream drives. All real-time motion commands reach the unit through the SERCOS III master port, which maintains deterministic communication during network activity.

Startup stress is reduced because the inrush current stays below 5 A and the current pulse lasts only 1 ms. Two relay outputs can switch loads up to 30 V and 1000 mA, allowing electrical isolation of brakes or contactors from the logic side. The EM option adds 1.2 W of incremental power draw and routes its signals through a D-Sub 15-pin male connector. Temperature or torque feedback connected to the X35 analog channel sees a sensing resistance of 300 Ω, and the converter provides 13-bit resolution for fine monitoring of drive-side sensor currents.