CSH01.1C-SE-EN1-EN2-NNN-L2-S-NN-FW Bosch Rexroth Indramat Safe Torque Off Sercos II Advanced Controller
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MPN: R911329671
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The Bosch Rexroth Indramat CSH01.1C-SE-EN1-EN2-NNN-L2-S-NN-FW is a controller from the CSH Advanced Controllers series. It supports sercos II communication with a maximum rate of 16 MBaud and provides a Safe Torque Off safety function. This controller features EnDat 2.1, 1 Vpp, and 5 V TTL interfaces, and operates with a base power of 7.5 W.
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Product Description:
The CSH01.1C-SE-EN1-EN2-NNN-L2-S-NN-FW is a single-axis motion and I/O controller produced by Bosch Rexroth Indramat within the CSH Advanced Controllers series. It serves as the command processor inside IndraDrive servo inverters, translating network telegrams into precise torque, speed, and position setpoints for industrial axes. Through its plug-in format, it occupies the control slot of the drive stack, allowing machine builders to integrate feedback, safety, and fieldbus functions without external racks.
Communication with the drive backplane and higher-level PLCs is handled over SERCOS II, so synchronous cyclic data exchange is maintained across the motion network. The card’s internal base circuitry draws 7.5 W, while the first encoder channel (EN1) needs an additional 6 W to excite its resolver. That resolver operates at a carrier frequency of 4 kHz with an excitation amplitude of 18.2 Vpp, which supports accurate sine-cosine sampling even on long motor cables. Physical connection for EN1 feedback is provided by a shielded D-Sub 15 female connector, keeping the analog signals isolated from the power section. A dedicated SERCOS daughterboard consumes 2 W and supports deterministic telegram timing regardless of motion load.
Rapid network update is sustained by a maximum ring speed of 16 MBaud, leaving bandwidth for the secondary encoder channel and I/O diagnostics. The second feedback port follows the EnDat 2.1 standard, delivers a regulated 5.0 VDC supply, and can source 350 mA for digital encoders, so absolute position values arrive without interpolation delay. For machine safety, the controller implements Safe Torque Off, removing gate-drive energy through hardware logic instead of software commands. A form-C relay rated at 24 VDC, 1 A offers galvanically isolated status signaling to external contactors, and inrush current is limited to 4 A by the onboard soft-start so auxiliary cabinets stay within fuse limits.
Frequently Asked Questions about CSH01.1C-SE-EN1-EN2-NNN-L2-S-NN-FW:
Q: What is the maximum Sercos communication rate supported by the CSH01.1C-SE-EN1-EN2-NNN-L2-S-NN-FW?
A: The CSH01.1C-SE-EN1-EN2-NNN-L2-S-NN-FW controller supports a maximum Sercos communication rate of 16 MBaud.
Q: What safety function is included with the CSH01.1C-SE-EN1-EN2-NNN-L2-S-NN-FW controller?
A: This controller features the Safe Torque Off safety function to ensure secure operational conditions.
Q: What is the relay output rating provided on the CSH01.1C-SE-EN1-EN2-NNN-L2-S-NN-FW?
A: The relay output on this model is rated for 24 VDC at 1 A.
Q: Which interface types are available for the En2 channel on the CSH01.1C-SE-EN1-EN2-NNN-L2-S-NN-FW?
A: The En2 interface supports EnDat 2.1, 1 Vpp, and 5 V TTL signal options for feedback devices.
Q: What is the inrush current of the CSH01.1C-SE-EN1-EN2-NNN-L2-S-NN-FW controller?
A: The inrush current for this controller is 4 A, which should be considered for circuit protection.
