Product Description:

The CDB01.1C-S3-NNN-NNN-NNN-MA1-L1-S-NN-FW belongs to the CDB Control Units series manufactured by Bosch Rexroth Indramat. It is a plug-in control section intended for coordinating drive functions within multi-axis automation cells. By hosting communication, safety, and low-voltage control hardware on one board, the unit streamlines operation of IndraDrive power sections and provides a standardized interface for logic, feedback, and peripheral signals.

The control section exchanges cyclic data over SERCOS III, so deterministic position and process information traverse the real-time Ethernet ring without separate fieldbus hardware. Internal electronics draw only 9 W from the 24 V control supply during normal operation, yet a brief inrush of 6 A occurs when power is first applied. A dedicated acknowledgment rail supplies actuators connected to the L1 terminal, and this rail is limited to DC 24 V / 1 A while being monitored for short-circuit events. The logic senses external ready signals through the L1 control line, which expects 24 V at 3 mA, and routes them through an unshielded D-Sub header so cabinet wiring remains compact.

I/O expansion is handled by the MA1 module, which offers 2 inputs and 2 outputs with a 12-bit resolution. Its digital outputs can generate pulses up to 60 ms for valve or gate triggering, and two probe inputs capture edge-aligned position marks for simple registration tasks. The S3 real-time ports terminate on a RJ-45, 8-pin connector and accept CAT5e ITP cabling, which simplifies network daisy chains across the drive rack. Command acknowledgment on the L1 side uses a D-Sub, 9-pin female plug that mirrors the pinout of legacy CDB versions. A built-in safety circuit provides Starting Lockout, which prevents unintended motion until the enable sequence is completed.