Product Description:

The CDB01.1C-SE-ENS-EN1-NNN-NNN-L2-S-NN-FW is a single-axis control section produced by Bosch Rexroth Indramat within the CDB Control Units series. Installed on an IndraDrive power module, it converts field commands into real-time drive signals for servo motor positioning, speed, and torque control in automated production cells. The board integrates fiber-optic SERCOS networking, local safety circuitry, and multiple encoder supplies so the drive can exchange motion data with higher-level PLCs while monitoring its own feedback loops.

Command interfaces start with an analog input range of ±10 V, permitting bipolar speed or torque references from external motion controllers. Digital inputs are rated at 24 V / 3 mA, so standard sourcing PLC cards can switch them without additional relays. For feedback, the board offers an analog monitor channel capable of 5 V / 1 mA, suitable for sending position or current signals to test equipment. Its seven transistor outputs can switch loads up to 24 V / 0.5 A, while the collective current available to all I/O is limited to 1000 mA. SERCOS II frames reach the control section through fiber-optic cables, and an auxiliary RS-232 port supports service diagnostics.

During power-up, the unit briefly draws 6 A before settling to a base consumption of 9 W, which helps size auxiliary supplies in the cabinet. Two stabilized encoder sources deliver 12 V and 8 V so both SinCos and TTL feedback devices can be powered directly. For fast synchronization tasks, the probing input resolves events with 1 µs accuracy and can accept pulses as short as 60 ms. The built-in relay contact is specified for 24 V / 1 A and can be wired to motor contactors or visual alarms. Safe Torque Off disables the drive stage without removing mains voltage, so fieldbus communication can remain active.