CSB01.1C-S3-ENS-EN2-NN-S-NN-FW Bosch Rexroth Indramat
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MPN: R911315253
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The Bosch Rexroth Indramat CSB01.1C-S3-ENS-EN2-NN-S-NN-FW is part of the CSB Drive Controllers series and operates with a 24 VDC control supply voltage and 8 W power consumption. It supports SERCOS III communication, features 8 digital inputs, 3 digital outputs, and one relay contact. The controller offers encoder supply voltages of 5 VDC and 12 VDC with maximum supply currents of 350 mA and 500 mA respectively.
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Product Description:
The CSB01.1C-S3-ENS-EN2-NN-S-NN-FW is a single-axis drive controller module in the CSB Drive Controllers series from Bosch Rexroth Indramat. As a control section, it plugs into a power section to form a complete servo drive, handling real-time motion commands, feedback processing, and network communication in automated machinery. By executing closed-loop control tasks and exchanging data with higher-level PLCs, the unit coordinates motor speed, position, and torque so that conveyors, packaging stations, and handling axes follow programmed trajectories with consistent accuracy. Its modular arrangement separates the control electronics from the power stage while still allowing the assembled drive to operate as one coordinated axis controller.
This control section communicates with the drive system through the SERCOS III interface, allowing deterministic cycle times and integration with standardized motion profiles. Internal logic and peripherals are powered from a 24 VDC control supply; during energization, the module draws an inrush current of 4.5 A, limited to a 110 ms pulse, after which steady consumption stabilizes at 8 W. Machine signals enter through eight discrete inputs, and 8 channels provide flexibility for limit switches, probes, or interlock signals. The three transistor outputs provide 3 status or gating signals to external actuators. These I/O points are sampled under the same synchronized bus cycle, which helps the controller react to field events without losing timing alignment with the commanded motion profile.
For encoder feedback, the board offers two isolated supply rails. Channel EN2 delivers 5 VDC at up to 350 mA, matching TTL-based incremental senders, while channel ENS provides 12 VDC with a maximum of 500 mA for SSI or analog multi-turn sensors. A single relay contact configured as 1 N/O provides a floating hardware enable that can interrupt drive readiness when host logic requests a safe stop. The separate encoder supplies allow compatible feedback devices to connect directly to the controller, and the floating enable contact can be wired into an external stop chain without requiring an additional interface module.
Frequently Asked Questions about CSB01.1C-S3-ENS-EN2-NN-S-NN-FW:
Q: Which communication protocol is supported by the CSB01.1C-S3-ENS-EN2-NN-S-NN-FW controller?
A: This model supports SERCOS III as its communication interface for integration.
Q: What is the required control supply voltage for the CSB01.1C-S3-ENS-EN2-NN-S-NN-FW?
A: The control supply voltage for this controller is 24 VDC.
Q: How many digital inputs are available on the CSB01.1C-S3-ENS-EN2-NN-S-NN-FW drive controller?
A: The unit is equipped with eight digital inputs for signal processing.
Q: What is the maximum encoder supply current for the ENS channel on CSB01.1C-S3-ENS-EN2-NN-S-NN-FW?
A: A maximum encoder supply current of 500 mA is supported on the ENS channel.
Q: How many relay contacts does the CSB01.1C-S3-ENS-EN2-NN-S-NN-FW provide?
A: There is one normally open (N/O) relay contact included in this drive controller.
