Bosch Rexroth CSH01.3C Ruggedized Servo Control for Harsh Environments

Product Overview

Bosch Rexroth CSH01.3C Ruggedized Servo Control for Harsh Environments

The Bosch Rexroth CSH01.3C-SE-EN2-NNN-CCD-S2-S-NN-FW (R911329914) is a single-axis servo control section from the IndraDrive Cs compact drive series — engineered to deliver precise, reliable motion control in the most demanding industrial environments. Whether deployed on a high-speed packaging line, a continuous steel rolling mill, or a hazardous petrochemical processing plant, this control section maintains deterministic servo performance under conditions of extreme temperature variation, high ambient humidity, pervasive airborne particulates, mechanical vibration, and intense electromagnetic interference.

Designed as the intelligence core of the IndraDrive Cs platform, the CSH01.3C control section integrates seamlessly with Bosch Rexroth power sections such as the CDB01.1C and CSB01.1N supply units, forming a compact, cabinet-optimized drive system. Its EN2 SERCOS III communication interface enables deterministic real-time synchronization across multi-axis architectures, making it fully compatible with Bosch Rexroth’s IndraMotion MLC and IndraMotion MTX motion logic controllers. In installations where the Rexroth HCS02 or HCS03 converter series handles bulk power conversion, the CSH01.3C slots in as the precision control layer — managing position, velocity, and torque loops with sub-millisecond cycle times.

The CCD (Cross Communication Drive) topology supported by this unit allows direct drive-to-drive communication without routing through the master controller, dramatically reducing reaction times in safety-critical interlocking scenarios. This is particularly valuable in press-brake, injection-molding, and robotic welding cells where coordinated multi-axis motion must be maintained even during partial system faults. The integrated Safe Torque Off (STO) safety function — certified to SIL 2 / PLd — ensures that the drive can be de-energized without a full system shutdown, supporting IEC 62061 and ISO 13849-1 compliant machine safety architectures alongside dedicated safety modules such as the Rexroth HAS01 safety option card.

Rugged Specifications Table

Comprehensive Protection Solutions

In modern industrial control cabinets, the CSH01.3C-SE-EN2-NNN-CCD-S2-S-NN-FW does not operate in isolation — it is the coordinating intelligence within a layered protection architecture. On the power supply side, the Bosch Rexroth HMV01.1E regenerative supply module conditions incoming AC power and feeds the DC bus, protecting downstream drive components from voltage transients and harmonic disturbances common in heavy industrial grids. The NFD03.1 mains filter, installed upstream, attenuates conducted EMI before it can reach sensitive control electronics.

For I/O expansion and field-level signal conditioning, the CSH01.3C integrates with Rexroth Inline I/O terminal modules over the SERCOS III backbone, enabling distributed digital and analog I/O without additional fieldbus gateways. In installations requiring functional safety beyond STO, the HAS01.1-001 safety option module can be fitted to extend the drive’s safety repertoire to Safe Stop 1 (SS1), Safe Stop 2 (SS2), and Safely-Limited Speed (SLS) — all without external safety relays.

Communication integrity in electrically noisy environments is maintained through the SERCOS III fiber-optic or shielded copper topology, which inherently rejects common-mode noise from variable-frequency drives, arc welders, and high-current contactors sharing the same cabinet. Where legacy Profibus or DeviceNet infrastructure exists, the CSH01 communication option cards (PROFIBUS-DP, EtherNet/IP) allow the IndraDrive Cs to bridge into existing DCS or SCADA architectures without replacing the host controller. Alongside the servo drive, Rexroth MSK servo motors and MKE synchronous motors are the recommended actuator pairing, pre-matched for encoder feedback compatibility and thermal protection coordination.

Application in Critical Infrastructure

In oil and gas processing facilities, the CSH01.3C-SE-EN2-NNN-CCD-S2-S-NN-FW controls precision metering pump drives and compressor inlet guide vane actuators, where even momentary position errors can trigger process upsets or safety system interventions. Its STO function integrates directly with the plant’s Emergency Shutdown (ESD) system, allowing the drive to be safely de-energized within the IEC 61511 functional safety framework without requiring a full DCS restart.

In mining and mineral processing, the drive manages conveyor positioning systems, crusher feed rate control, and flotation cell agitator drives — all subject to severe vibration, coal dust ingress, and wide ambient temperature swings. The IndraDrive Cs platform’s compact form factor allows installation in space-constrained MCC (Motor Control Center) panels close to the process, reducing cable runs and associated voltage drop and EMI pickup.

In power generation and utilities — including hydroelectric turbine governors, gas turbine auxiliary drives, and water treatment dosing pump systems — the CSH01.3C provides the sub-millisecond torque response needed to maintain grid-frequency stability and process chemical dosing accuracy. Its deterministic SERCOS III communication ensures that the motion controller’s commands arrive with guaranteed latency, critical in closed-loop control of fast-responding processes.

In metallurgy and steel production, continuous casting lines and rolling mill stands demand drives that can sustain full rated performance through 24/7 operation cycles, high ambient radiant heat from molten metal, and aggressive electromagnetic environments from large DC motor drives and induction furnaces operating nearby. The CSH01.3C’s robust EMC design and wide operating temperature range make it a proven choice for these environments, with documented installations across major steel producers in Europe and Asia.

Security & Quality FAQ

Q1: What does the 12-month warranty cover?
All units supplied by TOPNLMS carry a 12-month warranty from the date of shipment, covering manufacturing defects and functional failure under normal operating conditions. If a unit fails within the warranty period, we provide free replacement or repair. Our warranty process is straightforward: contact us with the fault description, return the unit with our RMA authorization, and we dispatch a replacement within 5 business days of receiving the defective item.

Q2: How is each unit tested before shipment?
Every CSH01.3C-SE-EN2-NNN-CCD-S2-S-NN-FW unit undergoes a multi-stage inspection protocol before dispatch: visual inspection for physical damage, firmware version verification, power-on functional test, and communication interface validation. Units sourced from OEM-authorized channels are cross-referenced against Bosch Rexroth’s genuine part databases using the R911329914 material number to confirm authenticity.

Q3: Is this unit compatible with my existing IndraDrive Cs installation?
The CSH01.3C-SE-EN2-NNN-CCD-S2-S-NN-FW is a standard IndraDrive Cs control section and is mechanically and electrically compatible with all IndraDrive Cs power sections of the same frame size. The EN2 SERCOS III interface is backward-compatible with SERCOS II masters when operating in compatibility mode. If you are unsure about firmware version compatibility with your IndraMotion controller, our technical team can advise based on your existing system’s project file or drive parameter backup.

Q4: Can you support long-term supply and emergency replacement needs?
Yes. TOPNLMS maintains buffer stock of high-demand IndraDrive Cs components specifically to support emergency breakdown replacement scenarios, where production downtime costs far exceed the component cost. We offer expedited shipping to most global destinations, with DHL Express and FedEx Priority options available for next-business-day delivery to major industrial hubs. For customers with planned maintenance schedules, we offer forward-stocking agreements to guarantee availability of critical spare parts.