Product Description:

The CDB01.1C-SE-ENS-ENS-NNN-MEM-L1-S-NN-FW is a control card produced by Bosch Rexroth Indramat within the CDB Control Units series. It is inserted into an IndraDrive power section, where it interprets analog references, processes feedback from multi-turn encoders, and executes real-time motion commands for two servo axes. By handling closed-loop tasks locally, the board eliminates the need for external PLC motion modules and allows compact installation in machine tools, packaging lines, and material-handling stations.

Its dual-axis architecture supports 2 independent drive channels that are synchronized over the SERCOS II fiber-optic ring. Each channel accepts voltage or current setpoints through an analog front end that offers 1.4 kHz of small-signal bandwidth and a high 160 kOhm input resistance, minimizing loading on delicate sensor circuits. Control of field devices is delivered through a 24 VDC block that can source a maximum of 1.1 A for digital inputs, while individual transistor outputs can sink up to 500 mA per point for contactors or solenoid valves. These values limit the available I/O loading and keep switching elements within thermal limits.

For position feedback, the card provides differential outputs that replicate incremental encoder signals at up to 1 MHz, with a source capability of 20 mA to satisfy long cable runs. Two evaluation channels marked ENS read absolute encoders and are energized by a dedicated 12 V rail; the rail also powers the emulation drivers so that encoder diagnostics remain active during setup. The built-in RS232 service port uses a Mini-DIN 8-pin connector, supports cable lengths of 15 m, and reaches 115 kBaud for parameter transfer and service access. A certified safety circuit enforces a Starting Lockout state until external enable conditions are met, preventing unintended motion.