Product Description:

The CSH01.1C-SE-EN1-EN2-MD1-S1-S-NN-FW is a control section manufactured by Bosch Rexroth Indramat for the CSH Advanced Controllers series. Mounted on an IndraDrive power unit, it closes the drive control loops and sends gate signals that determine motor torque, speed, and position. By accepting field-level commands and processing feedback devices, the board acts as the real-time motion core in automated assembly cells, packaging equipment, and material-handling axes.

An analog input resistance of 160 kOhm minimizes loading on connected transducers, while the board’s base power draw is only 7.5 W, keeping cabinet heat generation low. Command and diagnostics travel over SERCOS II, providing deterministic communication between the controller and the drive at microsecond update rates. During startup, the section tolerates an inrush current of 4 A for up to 100 ms, so downstream circuit breakers must accommodate that short pulse. Resolver interfaces energize the rotor with 18.2 Vpp at a 4 kHz carrier so absolute position can be computed without an external transducer supply. The RS-232 maintenance port supports cable runs to 15 m and data exchange up to 115 kBaud, letting service tools access parameters when the fiber network is offline.

The MD1 expansion on this controller supports a permissible load of 35 ohms for the secondary encoder channel and can source up to 350 mA to that device, enabling long-distance sin/cos or digital encoder wiring. Motion sequences are triggered through 12 digital inputs and acknowledged by 8 transistor outputs, which can drive contactors or signal PLC interlocks. Functional-safety wiring uses a 24 V / 3 mA rated input, a 24 V / 0.5 A semiconductor output, and a relay path specified at DC 24 V / 1 A, giving the card the capacity to force a safe torque-off event without external relays.