Product Description:

The CSH01.3C-CO-ENS-MA1-CCD-NN-S-NN-FW is a single-axis control card from Bosch Rexroth Indramat that belongs to the CSH Advanced Controllers series. Designed for mounting inside an IndraDrive power section, this module performs real-time motion sequencing, signal conversion, and network routing for industrial servo systems. By supplying local processing and deterministic communication, the card lets OEMs synchronize drives, sensors, and actuators without adding an external PLC. Its small format and internal backplane connection reduce cabinet wiring and help keep cycle times short.

This variant draws only 8.5 W from the internal bus, so thermal load on the drive stack is minimal. Fieldbus access is handled through a 5-pin Co connector that supports the CANopen/DeviceNet protocol for parameter downloads and diagnostic messaging, while cross-controller data exchange is handled by a SERCOS III Master interface. The encoder interface delivers up to 500 mA at 11.6 V for sensor excitation, covering most incremental and absolute feedback heads. A separate Ethernet service link runs at 100Base-TX, giving a dedicated channel for trace capture, updates, and online tuning. The analog front end samples feedback at a 12-bit resolution and maintains a 1 kHz input bandwidth to preserve loop fidelity.

The MA1 expansion on this card provides two analog inputs and two analog outputs, and both converter blocks use a 12-bit numerical width so commanded values align with sampled feedback. Input stages are protected by a 1000 kΩ impedance that helps prevent ground loops, while the output side can drive loads down to 1 kΩ without clipping. For electromechanical actuators or solenoids that need discrete on and off control, an internal relay contact is rated at 1 A. Point-to-point diagnostics can be executed over the asynchronous port, which sustains a maximum transfer rate of 115 kBaud. This arrangement supports auxiliary sensing and simple command interfacing within the same controller.