Product Description:

The CDB01.1C-SE-ENS-ENS-NNN-NNN-NN-S1-S-NN-FW is a modular control section from Bosch Rexroth Indramat and belongs to the CDB Control Units series. Installed inside a drive stack, it coordinates two servo axes and exchanges real-time data with PLCs over a fiber-optic SERCOS network. Within an automation cell, it supplies command processing, feedback evaluation, and safety monitoring for the connected power modules and field devices.

For motion processing, the section provides two analog channels; each can source up to 1 mA or provide a reference of 5 V, so velocity or torque setpoints can be delivered to external equipment. Internally, the controller dissipates 9 W, a value used for cabinet thermal calculations. Communication with the drive host is handled by the SERCOS II optical ring, and the logic supports 2 coordinated axes. Six digital inputs accept 24 V DC signaling; they draw 3 mA nominally and 5 mA at worst, with an ON threshold of 15 V and absolute tolerance to 30 V. Each input also supports TTL capture up to 400 kHz with a 5.25 V amplitude, allowing high-resolution probe latching during fast positioning routines.

On the output side, each high-side driver delivers 0.5 A at 24 V DC for brake relays or contactors. Safety monitoring is implemented through S1 (Safety I/O), so emergency-stop chains can be wired directly to the card. Two ENS encoder ports accept differential sinusoidal feedback; the front D-Sub-15 connector presents a 120 Ω termination, passes signals up to 500 kHz at a typical 1.0 V amplitude, and furnishes 12 V supply at 500 mA with 11.6 V nominal output. Additional system wiring is supported through the X7 memory-card slot for parameter storage and the X2 RS-232 service jack. The integrated relay can switch 1 A at 24 to 30 V DC, provided the load exceeds the 10 mA minimum. A 12-bit converter digitizes the incoming sine-cosine tracks for drive position control.