Product Description:

The CDB01.1C-SE-ENS-ENS-MEM-MA1-L2-S-NN-FW is a compact control section from Bosch Rexroth Indramat's CDB Control Units series. It is installed on the base plate of an IndraDrive power module. In operation, it serves as the local processor that links feedback devices to the drive control and converts command data into precisely timed gate signals for industrial servo axes. This arrangement keeps the control electronics close to the power section and supports fast signal handling in multi-axis motion systems.

It manages 2 controlled axes and exchanges deterministic motion profiles over the SERCOS II fiber-optic network. Two differential analog input channels with 12 bit resolution accept torque or velocity setpoints, while dual outputs can deliver up to 10 mA into 1 kΩ loads for actuator feedback; output conversion depth is identical to the inputs, yielding 4,096 discrete steps. The internal position-source module can stream quadrature signals at 1 MHz, allowing existing PLCs to process encoder data without added interface hardware. Standard logic also supervises two encoder interfaces, supplies 500 mA of current, and evaluates reference marks for each axis. Because the controller core draws only modest power, thermal dissipation inside the cabinet remains low even when both axes run high-resolution cyclic tasks. This helps the unit fit compact cabinet layouts where several drive components share the same enclosure.

The safety circuit is implemented through the certified Safe Torque Off function, ensuring that drive transistors are de-energized within microseconds during an emergency event while auxiliary electronics stay active for diagnostics. Sensor power is sourced from the dedicated rail at DC 11.6 V, which maintains stable encoder excitation across long cable runs. For application signaling, a changeover relay rated at 1 A is provided and can be mapped to fieldbus process data. Parameter storage, boot functions, and the virtual oscilloscope are preserved by an emulation module drawing just 2 W, which keeps memory alive during standby and limits heat rise in sealed enclosures. Retained memory also supports stored operating data used during startup and fault analysis.