Product Description:

The CSH01.3C-S3-ENS-EN2-CCD-L2-S-NN-FW control section is manufactured by Bosch Rexroth Indramat and belongs to the CSH Advanced Controllers series. The module plugs into an IndraDrive power section and serves as the processor that interprets encoder feedback, handles network traffic, and issues gate-drive commands. Within an automation cell, it converts high-level motion commands from the machine controller into precise torque and velocity references for individual servo axes. It is intended for multi-axis packaging, printing, and material-handling machines that require tightly synchronized motion and stable closed-loop control.

Its primary fieldbus channel uses SERCOS III, giving the drive a cyclic, jitter-free link to the PLC at Ethernet line rates. For peer exchange between drives, the board follows the IEEE 802.3 standard, so cross-communication telegrams share the same physical layer without extra hardware. One analog input and two analog outputs are available, and the outputs provide a 5 V reference at 1 mA for external setpoints. Digital inputs operate at 24 V / 3 mA, while the transistor outputs can switch loads up to 24 V / 0.5 A. Gate commands reach the IGBT stage at a maximum switching frequency of 16 kHz, which helps reduce current ripple and audible noise in high-speed servo applications.

The engineering interface is Ethernet based, allowing parameter access without interrupting motion cycles. Encoder Interface 1 supplies 12 V / 500 mA for SinCos or EnDat sensors, while a second port provides 5 V / 350 mA to power incremental encoders. Functional safety is enforced through Safe Torque Off, which disables gate drives when the relay block with one normally open contact is opened. Operating data can be viewed on the single-line control panel, and detailed diagnostics are available over the RS232 link.