Description
Product Introduction
The Bosch Rexroth CSH01.1C-PB-ENS-NNN-MEM-S2-S-NN-FW is a single-axis advanced control section from the IndraDrive CSH family. It plugs directly into a matching IndraDrive power section and handles position, velocity, and torque control for one servo axis. Master communication is PROFIBUS. The primary encoder interface (ENS) evaluates IndraDyn, Hiperface, 1 Vpp, and TTL signals. An additional MEM module provides encoder emulation, and the S2 option adds certified Safe Motion functions.
In the field this board is the difference between a basic drive and a fully integrated motion axis that can talk to a PLC over PROFIBUS while enforcing safety limits without external safety relays. Firmware is loaded and the standard control panel (S) allows local diagnostics and basic parameterization. When the original control section fails, matching the exact option string is critical—wrong encoder or safety options will keep the axis offline.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Control Type | Single-axis advanced control section |
| Master Communication | PROFIBUS (9-pin D-Sub, up to 12 MBaud) |
| Primary Encoder Interface (ENS) | IndraDyn / Hiperface / 1 Vpp / TTL |
| Secondary Option (MEM) | Encoder emulation (absolute & incremental) |
| Safety Option (S2) | Safe Motion (Safe Maximum Speed, Safe Direction, Safe Door Locking, etc.) |
| Analog Outputs | 2 |
| Control Voltage | 24 V DC (from power section) |
| Power Consumption | ≈ 7.5 W |
| Encoder Supply | ≈ 11.6–12 V DC, 300 mA |
| Typical Inrush Current | 4 A |
| Supported Encoders | IndraDyn S MSK, sin-cos 1 Vpp (Hiperface/EnDat 2.1), reference-track, TTL |
| Control Panel | Standard (S) – single-line display + keys |
| Firmware | FW (pre-loaded / configurable via IndraWorks) |
| Operating Ambient | 0 °C to 40 °C (typical for IndraDrive control sections) |
| Mounting | Plug-in to IndraDrive power section |
Application Scenarios & The “Trench” Experience
It’s 01:15 on a packaging line. The main indexing axis stops with a communication fault. The PLC still talks PROFIBUS, but the drive control section has died. Every minute of downtime costs product and labor. You need an exact CSH01.1C-PB-ENS-NNN-MEM-S2-S-NN-FW so the encoder feedback, safety functions, and PROFIBUS mapping stay identical.
- Packaging & Converting Machinery – Indexing and rotary axes – PROFIBUS master and Safe Motion allow direct integration with the line PLC while meeting SIL requirements without external safety modules.
- Machine Tools / Metal Forming – Single-axis positioning and feed – ENS interface handles high-resolution IndraDyn or Hiperface feedback for precise contouring.
- Printing & Converting – Register and tension control axes – Encoder emulation (MEM) lets the axis report position to other devices without additional hardware.
- Automated Assembly / Robotics Support Axes – Auxiliary motion under PROFIBUS – Compact plug-in design keeps cabinet space minimal while providing certified safety functions.
Field Case Study
A Midwest converting plant lost the control section on a critical unwind axis during a high-speed run. OEM lead time was quoted at several weeks. We supplied a tested new-surplus CSH01.1C-PB-ENS-NNN-MEM-S2-S-NN-FW the next day. The exact option string matched the original, so the existing IndraWorks project loaded without parameter changes. The line was back online in under four hours. Cost of the additional downtime would have exceeded the price of the spare many times over.
CSH01.1C-PB-ENS-NNN-MEM-S2-S-NN-FW
CSH01.1C-PB-ENS-NNN-MEM-S2-S-NN-FW
Transparency SOP: Quality Assurance & Testing
We don’t just ship boxes; every control section is verified on actual IndraDrive hardware.
- Inbound Inspection – OEM material number and option-string verification, visual inspection of connectors, backplane contacts, and conformal coating.
- Live Rig Testing – Mounted on a compatible IndraDrive power section; full power-on, PROFIBUS communication handshake, encoder interface test, and Safe Motion function verification.
- Electrical Parameter Checks – 24 V supply current, encoder supply voltage/current, analog output levels, and inrush behavior measured.
- Firmware Verification – Firmware revision logged and confirmed against known-good reference; IndraWorks recognition verified.
- Final QC & Anti-static Packaging – Functional burn-in, serial/material number documentation, and ESD-safe packaging ready for industrial transport.
The Veteran’s Tech Trap Guide
⚠️ Option string must match exactly. PB-ENS-NNN-MEM-S2-S-NN-FW is not interchangeable with a unit that has different encoder or safety options. Installing the wrong combination will produce encoder faults or disable Safe Motion functions.
❗ Never hot-swap the control section under power. Pull the entire drive or follow the official power-down procedure. Live insertion can damage the backplane connectors and the power section.
⚠️ Firmware and parameter set matter. Even with the correct hardware options, a mismatched firmware revision or missing parameter file will keep the axis from enabling. Always back up the original project in IndraWorks before replacement.
❗ Encoder wiring and supply. The ENS interface supplies ≈12 V. Wrong wiring or exceeding the 300 mA budget will either kill the encoder or trip the supply. Verify pinouts against the OEM documentation before power-up.
Frequently Asked Questions (FAQ for Conversion)
Q: Can I hot-swap this control section?
A: No. Power the drive down completely before removing or inserting the control section. Live exchange risks backplane damage.
Q: Is firmware compatibility critical?
A: Yes. Match the firmware revision of the original unit as closely as possible. We log the firmware on every tested unit so you can verify before installation.
Q: How does this compare to other CSH01.1C variants?
A: The option string defines the exact feature set. PB = PROFIBUS, ENS = specific encoder evaluation, MEM = encoder emulation, S2 = Safe Motion. Changing any letter changes the hardware options. Always match the full string.
Q: What warranty is provided?
A: 12 months from ship date on all tested new-surplus units.
Q: Why is this cheaper than buying direct from Bosch Rexroth?
A: These are genuine OEM control sections recovered from surplus or decommissioned systems. They are not clones. Global surplus channels simply move inventory that the OEM no longer stocks at full list price.
Q: Does it include the control panel?
A: The “S” in the option string indicates the standard control panel is part of the configuration. Confirm panel presence on the specific unit you receive.
Q: Will my existing IndraWorks project work?
A: If the hardware option string and firmware are compatible, yes. Always load the original project and verify encoder and safety parameters after installation.
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