Product Description:

The CSH01.1C-S3-ENS-EN2-MA1-L2-S-NN-FW from Bosch Rexroth Indramat is a modular control section in the CSH Advanced Controllers series. It plugs into IndraDrive power units to execute motion commands, manage fieldbus traffic, and monitor safety signals in automated machinery. By providing signal conditioning for analog channels, SERCOS III communication, and integrated Safe Torque Off contacts, the module serves as the control core for servo axes and peripheral I/O in real-time production lines. Its plug-in format also keeps the control electronics separate from the power stage, which supports flexible drive configurations within the same platform.

The electronic load on the cabinet power rail stays modest because the card draws a base power of 7.5 W during standby. Start-up demand is higher, and the inrush current peaks at 4 A, so the supply circuit must accommodate that brief surge. Internal logic for the En2 encoder operates from 5 V, while the Ens sensor supply delivers 12 V to external devices. The MA1 analog interface accepts process signals through a 1000 kΩ input impedance and resolves them at 5 mV per increment, which helps it read control references without heavily loading the source. It can source 10 mA into a 1 kΩ load for feedback tasks, and pulse-oriented commands are accepted with widths up to 100 ms. That combination supports both continuous analog values and slower pulse-based control signals on the same section.

Serial diagnostics remain available because the integrated RS-232 port supports cable runs to 15 m at line rates up to 115 kBaud. For real-time drive networking, the board offers a SERCOS III interface that uses CAT5e ITP cable on an RJ-45 8-pin connector and transmits over the 100Base-TX Ethernet physical layer. This separates deterministic motion traffic from serial service access and keeps routine setup data off the real-time channel. Safe Torque Off feedback is confirmed through a 24 V DC, 1 A acknowledge contact, and inputs are detected at 24 V with a 3 mA draw, so separate relay stages are not required. The interface mix allows the module to exchange axis data, read safety states, and handle local diagnostics from one control section.