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CSB02.1B-ET-EC-NN-S4-NN-NN-PW Bosch Rexroth Indramat

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The Bosch Rexroth Indramat CSB02.1B-ET-EC-NN-S4-NN-NN-PW is part of the CSB Drive Controllers series, featuring Multi-Ethernet communication and a supply voltage of 24 V. It provides 11 digital inputs, 2 analog outputs with a ±10 V range, and supports a multi-encoder interface. The drive controller offers Safe Motion safety technology and has a base power consumption of 17 W.

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Product Description:

The CSB02.1B-ET-EC-NN-S4-NN-NN-PW drive controller is produced by Bosch Rexroth Indramat for the CSB Drive Controllers series. It serves as the command and feedback hub between higher-level PLCs and servo axes, supervising velocity, position, and Safe Motion functions inside industrial automation cells. By combining power electronics with Multi-Ethernet connectivity, the device enables coordinated multi-axis motion in conveyors, pick-and-place heads, and forming machines while maintaining compact cabinet usage. Its Safe Motion circuitry permits category-oriented stop and speed monitoring without external relays.

The controller accepts a logic supply of 24 V, and its internal electronics draw a base load of 17 W when all I/O channels are idle. The unit offers 11 digital inputs for limit switches and sensor contacts, and 2 analog outputs can provide signals across a span of ±10 V for reference setpoints or diagnostics. Multi-Encoder Interface support allows EnDat, HIPERFACE, SSI, and resolver feedback, while field devices exchange cyclic data through the Multi-Ethernet port that follows IEEE 802.3 framing. The encoder rails supply 12 V and 5 V at 500 mA each, providing stable power for connected transducers.

Each analog channel has a resolution of 24 mV/incr for fine setpoint control. The power section has an inrush current below 5 A, so standard 24 V breakers remain within range during startup. Relay circuitry embedded on the I/O board can switch loads up to 1000 mA, and the dedicated S4 option board consumes only 2.5 W, which helps limit cabinet heat. Safe Motion includes STO, SS1, and SOS, while motion commands can be exchanged over Ethernet/IP, PROFINET, or SERCOS III on the IEEE 802.3 physical layer. Output pulses for step-direction tasks are limited to a maximum width of 1 ms.

12 V Encoder Current
500 mA
5 V Encoder Current
500 mA
Analog Output Resolution
24 mV/incr
Analog Outputs
2
Analog Voltage Range
±10 V
Base Power Consumption
17 W
Communication
Multi-Ethernet
Digital Inputs
11
Encoder Interface
Multi-Encoder Interface
Ethernet Standard
IEEE 802.3
Max Inrush Current
<5 A
Max Pulse Width
1 ms
Relay Current Capacity
1000 mA
S4 Module Power
2.5 W
Safety Technology
Safe Motion
Supply Voltage
24 V

Frequently Asked Questions about CSB02.1B-ET-EC-NN-S4-NN-NN-PW:

Q: How many digital inputs are available on the CSB02.1B-ET-EC-NN-S4-NN-NN-PW drive controller?

A: The CSB02.1B-ET-EC-NN-S4-NN-NN-PW supports up to 11 digital inputs.

Q: What communication standard does the CSB02.1B-ET-EC-NN-S4-NN-NN-PW support?

A: This unit uses a Multi-Ethernet communication interface conforming to the IEEE 802.3 standard.

Q: What is the analog voltage output range of the CSB02.1B-ET-EC-NN-S4-NN-NN-PW?

A: The analog output voltage range for this drive controller is ±10 V.

Q: What type of safety technology is included in the CSB02.1B-ET-EC-NN-S4-NN-NN-PW?

A: The CSB02.1B-ET-EC-NN-S4-NN-NN-PW features Safe Motion as its integrated safety technology.

Q: What supply voltage does the CSB02.1B-ET-EC-NN-S4-NN-NN-PW require?

A: The supply voltage required for this model is 24 V.


Internal Product Review

  • ‘‘The CSB02.1B-ET-EC-NN-S4-NN-NN-PW is a Bosch Rexroth Indramat CSB drive controller with Multi-Ethernet communication and Safe Motion technology. IEEE 802.3 compliance and a Multi-Encoder Interface support dependable network integration and accurate feedback processing. A 24 V supply with 17 W base power consumption makes the unit an efficient choice for modern drive systems.’’

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