Product Description:

The CDB01.1C-SE-ENS-ENS-EN1-NNN-S2-S-NN-FW is a control unit card produced by Bosch Rexroth Indramat for the CDB Control Units series. It is inserted into IndraDrive power sections to supervise two servo channels and act as the local intelligence in automated machinery cells. By coordinating feedback, command processing, and integrated safety, the board helps maintain accurate motion sequences in packaging, material-handling, and general factory automation lines. Its compact Euro-card format fits directly onto the power section backplane, which keeps signal paths short between the control logic and the inverter stage.

Inside the board, two digital axes are managed concurrently, and each channel receives its supply from a 24 V DC control rail that powers logic and I/O conditioning. Fast torque regulation is supported by a 125 µs current control cycle, while velocity and position feedback from motors enter through dual encoder sockets X4.1 and X4.2 that accept IndraDyn, Hiperface, 1 Vpp, or TTL formats. An additional X8.1 input handles HSF or RSF signals. Field wiring includes 18 digital inputs, one analog input, and two analog outputs. The SERCOS interface links the card to higher-level motion controllers, and a separate RS-232 serial port is available for service access.

Higher-level loop closure is paced by a 500 µs position control cycle and a 250 µs speed loop, both synchronized to a 4 kHz PWM carrier that modulates the connected power inverter. Functional safety is provided by Safe Motion (SIL2 / Cat. 3 PL d), allowing controlled stop, limited speed, or safe direction without external relays. During operation, the card draws only 7.5 W, which helps limit heat inside the cabinet. The onboard analog and digital resources operate continuously within these timing windows, and the encoder options support mixed-sensor installations on multi-axis machines.