Product Description:

The CDB01.1C-PB-ENS-ENS-NNN-NNN-L2-S-NN-FW is a modular control unit produced by Bosch Rexroth Indramat for the CDB Control Units series. Installed within IndraDrive drive stacks, this device coordinates servo axes and handles field signals needed in automated machinery. By linking feedback devices, power sections, and higher-level controllers, it converts sensor data into commands that regulate torque, speed, and position in industrial motion sequences. It can therefore serve as the signal-processing layer between motor feedback hardware and the drive power stage.

The dual-axis architecture, denoted by 2, provides independent processing for two drives. The high-speed input stage accepts 400 kHz 5 V TTL pulses, while the internal sampling circuit uses a 12-bit A/D converter to digitize analog references. Command values can be reissued on the analog output channel at 5 V, allowing external controllers to monitor drive status. During normal operation, the electronics draw only 9 W from the power bus, helping to minimize cabinet heat. A maximum pulse width of 60 ms is recognized without loss of position, and inrush current peaks at 6 A when the unit is first energized. Two Type 2 and two Type 3 probe inputs provide edge-triggered capture for metrology tasks and time-sensitive machine events.

Field communication relies on PROFIBUS, and an auxiliary RS-232 port is present for parameter backup and local access. The bus line is terminated internally by a 120-ohm differential resistor for signal integrity over long cables. Two ENS encoder interfaces supply position feedback channels, each powered by an isolated 11.6 V source to help protect connected sensors. The control board also carries a relay output rated at 24 V DC and 1 A for drive-ready signaling. When machine safety is required, the integrated Safe Torque Off circuit disconnects gate firing so that motor torque cannot be generated.