CDB01.1C-SE-ENS-NNN-NNN-S1-S-NN-FW Bosch Rexroth Indramat
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MPN: R911309977
The Bosch Rexroth Indramat CDB01.1C-SE-ENS-NNN-NNN-S1-S-NN-FW is part of the CDB Control Units series and has a base power consumption of 9 W with a 24 V DC control supply. It features a current control cycle of 125 microseconds and supports an encoder connector with a D-Sub 15 female interface. The unit provides a TTL input frequency of 400 kHz and supports RS232 cable lengths up to 15 meters at a maximum rate of 115 kBaud.
Internal Product Review
The CDB01.1C-SE-ENS-NNN-NNN-S1-S-NN-FW is a Bosch Rexroth Indramat control unit built for precise motion and drive control. A DC 24 V control supply and a 125 µs current control cycle support stable integration and fast response in automated systems. Strong safety interfacing with a 24 V / 0.5 A output rating makes this unit a very capable control platform.
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Product Description:
The CDB01.1C-SE-ENS-NNN-NNN-S1-S-NN-FW is a plug-in motion control unit manufactured by Bosch Rexroth Indramat for the CDB Control Units series. Mounted on an IndraDrive power module, it executes the drive control functions required for closed-loop automation, from torque regulation to coordinated multi-axis positioning. By hosting an integrated Sercos interface and dedicated safety circuitry, the board acts as the central link between higher-level PLCs and motor feedback devices. This arrangement enables precise, synchronized motion sequences in packaging, printing, and material-handling machines.
The unit relies on a DC 24 V logic rail and draws a typical inrush current of 6 A when the supply is first applied, which the cabinet fusing must accommodate. Once energized, the current control loop updates every 125 µs, enabling rapid torque corrections while the power stage switches at up to 8 kHz to minimize motor ripple. The incremental and absolute encoder port accepts differential signals up to 500 kHz before its internal filter attenuates them, safeguarding signal integrity during high-speed moves. These timing and bandwidth values establish the drive’s dynamic operating range and affect how closely the servo follows command trajectories under changing load conditions.
For network synchronization, the Sercos master can shorten the telegram cycle to a minimum of 1000 µs, matching the control cycles without overloading the backplane. When serial diagnostics are preferred, the integrated RS-232 port reaches 115 kBaud across cables up to 15 m. Base logic consumption remains at 9 W, so the thermal load in compact cabinets remains low. Safety relays are driven by an auxiliary output rated at 24 V / 0.5 A, and connections are made through a female 9-pin D-Sub plug. The encoder header uses a female 15-pin D-Sub layout, provides 11.6 V sensor power, and terminates the line with 120 Ω. TTL probe inputs can count edges at frequencies up to 400 kHz. The board also tolerates a 60 ms inrush pulse without damage to its supply circuits.
