Product Description:

The CSH01.1C-ET-ENS-EN2-NNN-NN-S-NN-FW module is a drive controller card produced by Bosch Rexroth Indramat within the CSH Advanced Controllers series. Installed in IndraDrive power units, it executes motion algorithms, processes feedback from incremental and serial encoders, and issues setpoint commands to servo amplifiers in automated assembly lines, packaging cells, and material-handling equipment. By combining fieldbus communication with onboard analog, digital, and Ethernet interfaces, it bridges supervisory PLC networks and axis-level power stages. The controller also handles fast command processing inside the drive so the connected power section can respond quickly to changing axis demands.

At the signal level, the card provides an analog reference channel that can source 1 mA or drive a control voltage of 5 V for legacy actuators. Eight digital outputs are rated for 500 mA each, so interposing relays are often unnecessary. Core electronics draw only 7.5 W, reducing the need for forced ventilation, yet the supply must tolerate an initial surge of 4 A; this inrush lasts 100 ms and is typical of the filter capacitors on the power plane. Encoder support through the EN2 connector includes a dedicated 5.0 V supply, a minimum load resistance of 35 ohms, and cable options of 75 m with sense lines or 50 m without them. A separate ENS port delivers 12 V for Hall or multiturn encoders that require higher excitation. This mix of I/O and encoder power lets the card interface with common sensors, reference sources, and external status devices in one drive slot.

Network connectivity is based on the 100Base-TX protocol, and twisted-pair segments of up to 100 m can be used without repeaters. For bench setup or service laptops, the serial interface reaches 115 kBaud and is specified for 15 m of cable. When driving incremental feedback devices, the EN2 line driver can deliver 350 mA, allowing long cable runs without signal degradation. This arrangement supports direct connection to plant Ethernet infrastructure and local setup tools without separate communication hardware. It also helps the controller exchange commands and feedback with connected devices during continuous machine operation.