Product Description:

The CDB01.1C-SE-ENS-EN2-NNN-NNN-L2-S-NN-FW control section is produced by Bosch Rexroth Indramat within the CDB Control Units series. Installed on IndraDrive power sections, it governs servo axes in automated machinery, supplying real-time motion processing and network communication. The module measures 322.6 mm in height and 103 mm in depth, fitting standard control cabinet rails without additional spacing hardware. Used in packaging lines, material handling, or robotics, it provides the logical layer that translates fieldbus commands into precise gate-drive signals for connected power inverters. It also coordinates command execution with feedback handling so axis motion remains consistent during indexing, positioning, and speed-controlled operation.

The unit runs on a 24 V DC control supply that powers its signal electronics and internal diagnostics. For machine interfacing, it offers one analog input, two analog outputs, and four configurable discrete channels, while a bank of 18 digital inputs accepts fast edge-triggered commands for homing, limit sensing, or user interlocks. Axis data are exchanged with the drive system over the SERCOS Interface, allowing deterministic timing between the controller and the power stage. Motion calculations are refreshed every 125 µs in the current control loop, and output transistors are modulated at 4 kHz PWM, giving smooth torque generation even on high-speed motors without excessive switching losses. This arrangement supports rapid response to machine events while keeping signal flow organized inside the drive system.

In the velocity regulator, the feedback loop closes every 250 µs, and position interpolation updates at 500 µs, enabling tight synchronization of multiple axes. Safety is provided by Safe Torque Off, which instantly inhibits power devices when a certified channel changes state. Setup and diagnostics use the RS232 service port, and the dual-encoder architecture accommodates IndraDyn, Hiperface, 1 Vpp, or TTL formats on the first channel and EnDat 2.1, 1 Vpp, or TTL on the second. This feedback flexibility allows the control section to work with motor-integrated feedback devices as well as external measurement sources used for precise axis supervision.