Product Description:

The CDB01.1C-SE-ENS-ENS-MEM-MA1-NN-S-NN-FW is a compact control unit produced by Bosch Rexroth Indramat within the CDB Control Units series. It functions as the command and feedback node inside drive systems, exchanging real-time data between a servo drive and upper-level control through the SERCOS II interface. By hosting multiple option slots, it coordinates motion tasks, processes probe signals, and distributes encoder information to maintain deterministic operation in industrial automation cells. This arrangement lets one module handle feedback acquisition, command exchange, and local signal processing without requiring separate interface hardware for each task.

The unit draws a maximum power of 27 W during normal operation and experiences an inrush of 6 A when the 24 V DC supply is first applied. Two ENS ports accept differential encoder feedback, and the MEM channel can supply position reference pulses at up to 1 MHz. Probe synchronization accuracy reaches 1 µs, while a minimum probe pulse width of 4 µs ensures reliable edge detection during high-speed registration tasks. Each digital output can source up to 500 mA, allowing direct actuation of field coils or LED stacks without external drivers. The controller supervises thermal loading through current grouping, and if several outputs are active at the same time, it derates them to remain within operating limits.

The MA1 analog input presents an impedance of 1000 kΩ and supports current sourcing up to 10 mA for sensor excitation. For cyclic timing functions, internal timers can generate pulses as long as 60 ms without software intervention. A per-group sourcing limit of 1000 mA protects board traces, and electromechanical switching is handled by a relay rated for 1 A at DC 30 V. Option 3 adds encoder emulation so virtual quadrature signals can be sent to legacy devices, and Option 4 adds an analog I/O extension with extra ±10 V process channels. These added interfaces allow the control unit to connect older peripheral equipment and external process signals within the same drive system.