Product Description:

The CDB01.1C-PB-ENS-EN2-NNN-NNN-S1-S-NN-FW is a plug-in control section produced by Bosch Rexroth Indramat for the CDB Control Units series. Installed in an IndraDrive power module, the board closes the position, velocity, and torque loops for two servo axes while coordinating with a plant-level controller. It evaluates incoming encoder data, applies parameterized motion profiles, and transmits status information, giving automated assembly lines or handling stations a centralized point of drive intelligence. This arrangement supports coordinated motion, stable axis response, and consistent communication between the power section and the higher-level control system. Its compact Euro-card format supports installation in modular drive assemblies.

The unit supervises 2 axes and exchanges cyclic data with a PLC over PROFIBUS-DP. The fieldbus port uses a D-Sub 9-pin female connector and complies with the EIA-RS485 standard, allowing multi-drop cabling up to 12 Mbit/s. Axis 1 accepts IndraDyn, HIPERFACE, or 1 Vpp feedback, whereas axis 2 can process EnDat 2.1, 1 Vpp, or 5 V TTL signals, so different encoder types can be used on one drive without a separate feedback module. The secondary encoder supply channel EN2 provides up to 350 mA at 5.0 V, supplying absolute encoders without an external power source. Inside the ENS module, the analog-to-digital converter has a 12-bit resolution, and the resolver input resistance is 120 ohms. These resources let the card calculate fine position increments and deliver smooth torque commands to the power stage.

The ENS section draws as much as 500 mA from an internal rail at 11.6 V, a level chosen to accommodate sensor startup surges while keeping heat dissipation low. Discrete control is routed through the S1 connector, where the logic channel sinks 3 mA and the driver channel can source up to 0.5 A for interlock magnets or contactor coils. An integrated Safety Technology I/O feature adds hardware-rated stop and enable lines for safe torque off. The card handles feedback evaluation and control signaling in the same section, which helps simplify internal routing between encoder, bus, and safety connections.