Product Description:

The CDB01.1C-S3-ENS-EN2-NNN-MA1-NN-S-NN-FW is a plug-in control unit produced by Bosch Rexroth Indramat for the CDB Control Units series. Installed inside IndraDrive power sections, it supervises two servo axes, processes field-level signals, and exchanges motion data with higher-level PLCs. By hosting the local closed-loop algorithms and handling encoder feedback, the unit coordinates precise positioning and speed regulation in multi-axis machinery such as packaging stations, pick-and-place gantries, and material-handling robots. Its integrated layout allows axis control and signal handling to remain within the drive platform instead of requiring a separate external motion module.

The module draws a base idle load of 9 W, so cabinet thermal design can remain compact. Command traffic moves over the deterministic SERCOS III network, allowing tight synchronization with other drives on the fiber ring. For analog diagnostics or setpoint functions, it provides 2 input and 2 output channels, while discrete actuators are supplied through a digital block that can source up to 500 mA per point. Internally, axis-related sampling of the MA1 measurement input is handled with 12 bit resolution, which supports finer current-loop processing. Two axes share a single inrush limiter that protects backplane traces during power-up, and the pulse-train section can stretch commands to a maximum width of 60 ms when long dwell times are needed. Inductive loads connected to the outputs may return up to 400 mJ of energy without triggering an overvoltage fault.

Each axis supports dual encoder interfaces, which allows the control unit to work with different feedback technologies on the same platform. The first port can energize IndraDyn, HIPERFACE, or 1 Vpp sensors at 11.6 V and delivers 500 mA, while the second port supplies EnDat 2.1, 1 Vpp, or 5 V TTL feedback at 5.0 V with a 350 mA budget. When several outputs are activated at the same time, the shared driver furnishes a combined 1000 mA. During initial DC-bus charging, the control card tolerates an inrush of 6 A, after which steady consumption returns to the quoted base load. The two-axis internal scheduler maintains deterministic update timing even when both encoders stream high-resolution data at the same time.