Product Description:

The CSH01.1C-SE-EN1-EN2-MEM-S1-S-NN-FW control section is manufactured by Bosch Rexroth Indramat as part of the CSH Advanced Controllers series. It fits into IndraDrive stacks and acts as the command layer that interprets encoder signals, issues setpoint references, and links the drive to a SERCOS network. Inside an automation cell, the board coordinates motor torque, speed, and position so multiple axes follow programmed motion profiles. This arrangement lets the control section manage feedback processing and network communication while the connected power section supplies motor current.

The signal interface uses precision analog processing. Each input is sampled within a bandwidth of 2 kHz, and the controller applies 8-fold oversampling to reduce quantization noise. A high input impedance of 180 kΩ prevents loading of external transducers. The unit provides 9.8 mV/inc of step resolution across 2 analog output channels, and each channel supports a 2 kΩ load. Encoder ports are powered independently, so resolver or HSF devices can use the En1 supply while EnDat 2.1, 1 Vpp, or 5 V TTL feedback can use the En2 rail without an external interface supply. These resources let the controller acquire precise position data and forward conditioned analog commands to the connected power module.

The electronics draw only 7.5 W from the 24 V DC control supply, which helps limit heat buildup inside the cabinet and reduces the load on shared low-voltage power rails. At startup, the board accepts an inrush of 4 A for 100 ms, matching its typical surge demand during power application. Real-time communication is handled by the integrated SERCOS module; a rate of 16 MBaud is supported with a minimum network cycle of 250 µs, which helps keep multiple axes synchronized during motion. A changeover relay rated for 2 A at 250 V AC is available for fault signaling or contactor control.