Product Description:

The CDB01.1C-S3-EN1-EN1-NNN-NNN-NN-S-NN-FW is a control unit manufactured by Bosch Rexroth Indramat within the CDB Control Units series. This plug-in module mounts on a compatible drive controller and acts as the intelligence layer that processes feedback, issues setpoint commands, and coordinates motion sequences in industrial automation lines. By handling command processing at the control level, it helps synchronize axis behavior and communication between the drive and the surrounding machine.

Motion processing is organized for 2 axes, allowing a single unit to command a pair of servo drives from one slot. Network traffic is handled through SERCOS III, so deterministic telegrams reach the drive with sub-millisecond cycle times. Each analog velocity or torque reference passes through an input network that presents 180 kΩ of resistance, limiting loading on upstream sensors. The same channel is digitized at 5.5 mV/inc, a granularity that supports fine process adjustment. When the application needs an analog feedback signal, the board can source up to 1 mA at a maximum of 5 V. This output uses discrete 19.5 mV increments so a higher-level controller can reconstruct measured values without loss of resolution.

Power management affects cabinet sizing and supply design during integration. Idle operation draws a base load of 9 W, and the unit can require up to 22 W during heavier computation and I/O activity. Because the power rail charges internal capacitors rapidly, an initial 6 A inrush current must be supported, and that surge can last up to 60 ms before settling. Digital outputs can deliver 500 mA per point, with an aggregate group limit of 1000 mA, enabling the direct actuation of relays or indicator lamps without auxiliary interposing hardware. Resolver supply of 18.2 Vpp at 4 kHz and a 15 V logic-high threshold on the inputs complete the signal environment for axis feedback and machine-level handshake lines.