Product Description:

The CSH01.1C-PB-ENS-NNN-NNN-L2-S-XP-FW belongs to the CSH Advanced Controllers series from Bosch Rexroth Indramat. It is a plug-in control section for IndraDrive servo inverters that processes encoder feedback, fieldbus traffic, and safety signals so the drive can regulate torque, speed, and position in automated machinery. This configuration is intended for coordinated motion applications where the control section must exchange command data with the inverter and connected motor in real time. Because it is a control section rather than a complete power stage, it works with the inverter hardware to manage closed-loop axis behavior.

This control section operates from a 24 V DC system supply, and its electronics have a base power draw of 7.5 W before optional functions are added. Communication with higher-level PLCs takes place over PROFIBUS at up to 12 MBaud, while the analog front end uses a 12-bit A/D converter to sample incoming signals. Signal conditioning is handled by circuitry with a cutoff frequency of 500 kHz, and TTL reference inputs can be decoded up to 400 kHz for fast command tracking. During startup, inrush current can reach 4 A, the ENS encoder module adds 6 W, the PB fieldbus board adds 2 W, and diagnostic timing uses 100 ms pulse widths on the related lines.

The feedback channel supplies the connected motor encoder with 11.6 V and allows continuous sensor current up to 500 mA, which supports high-resolution multi-turn encoders during rapid motion cycles. Safe Torque Off supervision is active when the monitoring circuit detects only 3 mA on its input pins, and the STO circuit remains referenced to 24 V until the required thresholds are satisfied. PROFIBUS cabling uses a 120 ohm differential impedance to help preserve signal quality across complex machine layouts. Logic outputs can source 5 V at 1 mA for analog monitoring, giving the control section a simple way to provide status information to connected equipment.