Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Bosch Rexroth |
| Product Family | IndraDrive |
| Control Section | CSH01.1C |
| Type Code | CSH01.1C-SE-EN2-NNN-NNN-NN-S-XP-FW |
| Material / Reference | R911335435 |
| Master Communication | SERCOS Interface |
| Primary Encoder Option | EnDat 2.1 / 1 Vpp / TTL |
| Analog Outputs | 2 |
| Digital Inputs | 7–11, depending on configuration |
| Digital Outputs | 4 |
| Switching Frequencies | 2 / 4 / 8 / 12 / 16 kHz |
| Display | One-line diagnostic display |
| Diagnostic Function | Integrated self-diagnostics |
| Leakage Current | Approx. 3.5 mA |
| Firmware | Firmware module not included with the control section |
The type-code documentation identifies SE as the SERCOS interface master and EN2 as the EnDat 2.1 / 1 Vpp / TTL encoder option. The CSH01.1C is the Advanced control-section design within the IndraDrive family.
Product Introduction
Bosch Rexroth CSH01.1C-SE-EN2-NNN-NNN-NN-S-XP-FW
The Bosch Rexroth CSH01.1C-SE-EN2-NNN-NNN-NN-S-XP-FW is an IndraDrive control section used to control a compatible motor converter in industrial motion applications. This particular configuration provides a SERCOS master interface, EnDat 2.1/1 Vpp/TTL primary encoder evaluation, two analog outputs, and integrated diagnostic functions.
Its main value is configuration-specific compatibility. The CSH control section is not a standalone PLC and should not be treated as a generic motor controller. It works as part of the IndraDrive architecture, where the exact control-section type, encoder interface, communication configuration, firmware, and connected power section all affect system compatibility.
CSH01.1C-SE-EN2-NNN-NNN-NN-S-XP-FW
Application Scenarios & Field Pitfalls
Engineering Pain Point
A common IndraDrive maintenance problem is replacing a failed control section with a unit that looks identical but carries a different type-code configuration. That can create problems during commissioning: the encoder interface may not match, the required communication option may be absent, or the installed firmware may not correspond to the machine configuration. With CSH01.1C-SE-EN2-NNN-NNN-NN-S-XP-FW, the complete type code matters.
Typical Applications
- Machine Tools — servo-axis positioning, spindle control, and coordinated machine motion.
- Printing Machinery — synchronized servo axes and electronic line-shaft applications.
- Packaging Equipment — high-speed positioning, indexing, cutting, and forming axes.
- Metal Processing — synchronized drives for forming, feeding, and material handling equipment.
Technical Pitfalls to Avoid
- Do not substitute based on “CSH01.1C” alone.
The suffix defines important options. In this unit, SE identifies SERCOS master communication while EN2 specifies the primary encoder interface. A .1C with a different option code is not automatically equivalent. - Check the firmware situation before commissioning.
The referenced configuration is identified as FW, but available documentation for this specific unit states that the firmware module is not included. Firmware compatibility therefore needs to be checked against the IndraDrive application before installation. - Verify encoder feedback carefully.
EN2 corresponds to EnDat 2.1 / 1 Vpp / TTL encoder evaluation. Do not assume that an existing motor feedback device will work simply because the mechanical motor and drive ratings match. - Grounding is not optional.
The documented leakage current is approximately 3.5 mA. Proper protective grounding is required before energizing the drive system.
Related Products
- Bosch Rexroth .1C-SE-EN1-EN2-NNN-NN-S-XP-FW — Another .1C configuration using SERCOS master communication. Its option arrangement differs from the submitted type code, including an HSF/RSF primary encoder option, so it should not be treated as a direct drop-in replacement without checking the machine configuration.
- Bosch Rexroth .1C-SE-EN2-NNN-MEM-NN-S-XP-FW — Closely related CSH configuration with an encoder-emulation option in place of the corresponding NNN option. It is relevant where encoder signal emulation is required.
- Bosch Rexroth .1C — The underlying Advanced control-section family. Different type-code combinations provide different communication, encoder, I/O, and safety configurations. Always compare the complete type code.
- Bosch Rexroth IndraDrive Power Supply Unit — The CSH control section works together with a compatible power section/power supply within the IndraDrive system. Selection depends on the required drive power, DC-bus arrangement, and machine configuration.
- Bosch Rexroth IndraDrive Control Panel — Used for local operation, parameter access, commissioning, and diagnostic work where the installed drive configuration supports the applicable panel.
- Bosch Rexroth SERCOS Interface Configuration — The SE option in the submitted type code provides SERCOS master communication. This is particularly relevant to coordinated multi-axis IndraDrive systems.
- Bosch Rexroth EnDat 2.1 Encoder Interface — The EN2 option is specifically relevant when the motor feedback uses EnDat 2.1, 1 Vpp, or TTL signals. Encoder compatibility should be confirmed from the motor/encoder identification rather than inferred from the drive family.
Procurement note: The full identifier CSH01.1C-SE-EN2-NNN-NNN-NN-S-XP-FW, rather than simply “.1C,” should be used when sourcing a replacement. The associated reference is R911335435. For a live machine, verify the control-section type code, firmware, encoder type, SERCOS configuration, and connected power section against the existing drive documentation before installation.
