Product Description:

The CDB01.1C-SE-NNN-NNN-NNN-MA1-L2-S-NN-FW is a plug-in control section manufactured by Bosch Rexroth Indramat within the CDB Control Units series. Designed for installation in Rexroth drive controllers, the module handles command processing, fieldbus communication, and local I/O conditioning required for coordinated motion in industrial automation cells. By managing velocity loops and torque limits in the drive, it lets servo axes, sensors, and higher-level PLCs exchange motion data with predictable timing and diagnostic feedback. Its plug-in format places these control functions on a removable section of the drive, so the power stage and the control electronics remain organized as separate assemblies.

Power for its digital electronics is drawn from the drive backplane, where the base circuit draws 9 W, and startup demand peaks at 6 A during a 60 ms inrush window. Data exchange with neighboring drives and PLCs is handled through the fiber-optic SERCOS II control bus, which the unit supports at rates up to 16 MBaud. Two differential analog inputs are provided, and their high-impedance channels present 1000 kΩ of resistance so external transducers are not heavily loaded. A span of ±10 V also allows direct connection of standard process signals, and the module can place these reference values into the cyclic setpoint telegrams of the SERCOS ring with low noise pickup.

The module also carries two analog outputs that cover a full-scale range of ±10 V and can source up to 10 mA into a load as low as 1 kΩ, enabling drive-level reference, trim, or monitor signals without external amplifiers. Parameter setting and service diagnostics can be performed through its front-panel RS-232 interface, which reaches 115 kBaud for point-to-point connections to a service computer. When machine safety is required, the integrated Safe Torque Off circuit interrupts gate-firing energy so the connected power stage cannot energize the motor. This function supports common risk-reduction methods without adding separate external relays to remove torque-producing current.