Product Description:

The CSB01.1C-PB-ENS-ENS-NN-S-NN-FW is a control section from the CSB Drive Controllers series manufactured by Bosch Rexroth Indramat. Installed inside a modular drive stack, it governs positioning and velocity loops for connected power sections, allowing coordinated motion on production lines and material-handling cells. Its task is to translate fieldbus commands into precise encoder-based feedback signals so that servo axes follow programmed trajectories without deviation.

This unit exchanges process data over PROFIBUS-DP, and the fieldbus port sustains a maximum rate of 12 MBaud so cycle times stay in the low-millisecond range. The unit has 3 combined I/O channels for fast local interlocking or sensor capture, and the internal logic rail can supply up to 1.1 A to support them. Two ENS encoder interfaces deliver differential signals to the controller, and each channel can source up to 500 mA to the connected feedback devices. Physical dimensions of 241 mm in height, 49.5 mm in width, and 103 mm in depth permit dense side-by-side mounting inside a standard 600 mm cabinet without compromising airflow.

The encoder rails operate at a regulated 11.6 V DC, while the power terminal experiences an initial inrush of 4.5 A when the drive is energized. Pulse-train inputs accept widths up to 110 ms, letting the section capture slow limit-switch events without timeout errors. The onboard relay is rated for 24 V DC, 1 A and provides a form-C contact for brake release or fault signaling. Communication hardware is completed by a D-Sub 9-pin female connector for PROFIBUS, a D-Sub 15-pin female socket for the dual encoder inputs, and an RS232 service port for parameterization. The enclosure’s slim profile and pre-aligned connectors simplify wiring in multi-axis racks, while the 2 × ENS feedback design maintains positional fidelity even on high-resolution linear scales.