Description
| Product model | HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW |
| Manufacturer | Bosch Rexroth |
| Product category | Compact Servo Drive (IndraDrive Cs Series) |
| Rated output power | 2.8 kW (continuous) |
| Supply voltage | 3× 400–480 VAC ±10%, 50/60 Hz |
| Motor feedback interface | EnDat 2.2, Hiperface, incremental encoder (via plug-in module) |
| Communication protocols | EtherCAT (primary), CANopen (secondary) |
| Safety functions | STO (Safe Torque Off) per EN 61800-5-2, SIL 2 / PL d |
| Cooling method | Natural convection (convection-cooled, no fan) |
| Mounting orientation | Vertical wall mounting only (±10° tolerance) |
| Protection rating | IP20 (for use in enclosed control cabinets) |
| Operating temperature | 0°C to +45°C (derating above 40°C) |
Product Introduction
The Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW is a compact, convection-cooled servo drive from the IndraDrive Cs family, engineered for high-performance motion control in space-constrained industrial applications. With a continuous output rating of 2.8 kW and compatibility with 480 VAC mains supply, this drive delivers precise torque, speed, and position control for synchronous and asynchronous motors—commonly used in packaging, printing, robotics, and material handling systems. Its integrated dual-network capability (EtherCAT and CANopen) enables seamless integration into modern machine architectures without requiring external communication modules.
As part of Rexroth’s scalable IndraDrive platform, the Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW supports direct connection to Rexroth’s IndraDyn S and A motor families while also accommodating third-party motors via configurable feedback interfaces. The “ET-EC” suffix confirms native EtherCAT support as the primary real-time bus, with CANopen available for auxiliary devices or legacy subsystems. Built-in Safe Torque Off (STO) eliminates the need for external contactors in safety circuits, reducing panel complexity and improving response time during emergency stops. This drive is not just a power amplifier—it’s a full-featured motion node ready for Industry 4.0 environments.
Core Advantages and Technical Highlights
Native EtherCAT performance: The Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW implements the full EtherCAT protocol stack in hardware, achieving cycle times as low as 250 µs with jitter under 1 µs. This enables tight multi-axis synchronization—critical for gantry robots, flying shear cutters, or electronic line shafting in converting machinery. Unlike gateway-based solutions, there’s no latency penalty or configuration overhead.
Fanless reliability: By eliminating moving parts, the Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW achieves higher MTBF in dusty or corrosive environments where fan failure is common. Heat dissipates through its aluminum housing, which must be mounted directly to a grounded metal backplate for optimal thermal transfer. This design reduces maintenance costs and increases uptime in 24/7 operations.
Integrated safety without compromise: STO is implemented via dual-channel hardware circuitry compliant with EN 61800-5-2, achieving Performance Level d (PL d) and SIL 2. The Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW allows safety wiring to connect directly to spring-clamp terminals on the front—no add-on modules needed. This simplifies validation and reduces cabinet footprint.
Plug-and-play motor compatibility: Using Rexroth’s motor data identification (MDI) system, the Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW auto-detects connected IndraDyn motors and loads optimal tuning parameters at power-up. For non-Rexroth motors, engineers can manually configure commutation type, pole pairs, and feedback resolution via IndraWorks DS or PLCopen function blocks.
Compact form factor with full functionality: Despite its small size (approx. 220 × 120 × 150 mm), the Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW includes all essential features—brake control outputs, digital I/O for limit switches, and analog monitoring—eliminating the need for external relays or signal conditioners in most standard applications.
Typical Application Scenarios
The Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW excels in mid-power automation tasks where precision, compactness, and network integration are critical. In vertical form-fill-seal (VFFS) packaging machines, it drives film feed, sealing jaws, and cutting axes in perfect coordination over EtherCAT—ensuring consistent bag length and seal integrity at speeds exceeding 100 cycles/minute. The fanless design prevents food particulates from clogging cooling vents, meeting hygiene requirements in food & beverage plants.
In automated guided vehicles (AGVs) and mobile robots, the Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW powers traction and lift axes with regenerative braking capability, feeding energy back into the DC bus during deceleration. Its wide input voltage tolerance accommodates battery voltage sag, while STO ensures safe shutdown during obstacle detection.
For printing and converting lines, the Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW synchronizes dancer roll tension control with unwind/rewind spindles using camming and gearing functions executed directly in the drive. The low-jitter EtherCAT interface maintains phase alignment even during web breaks or speed changes. Its convection cooling also avoids airflow that could disturb lightweight substrates like foil or film.
Related Model Recommendations
Related Model Recommendations- HCS01.1E-W0018-A-03-B-ET-EC-NN-L3-NN-FW: 1.8 kW version—ideal for lighter-duty axes or cost-sensitive builds
- HCS01.1E-W0054-A-03-B-ET-EC-NN-L3-NN-FW: 5.4 kW variant—for higher-torque applications like extruder feeds
- HCE01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW: Same power but with forced-air cooling—for high-ambient or stacked installations
- MSK040B-0600-NN-M1-UG1-NNNN: Compatible IndraDyn S servo motor—often paired with HCS01.1E-W0028…
- DKC01.3-040-3-MGP-0000-L3: Legacy IndraDrive C variant—HCS01.1E is its modern, EtherCAT-enabled successor
- HMV01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW: Cabinet-mounted version with same specs but different mechanical form
Installation, Commissioning and Maintenance Instructions
Installation preparation: Mount the Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW vertically on a flat, unpainted metal surface inside an IP54-rated cabinet. Maintain minimum clearances of 50 mm above and below for airflow—even though it’s fanless, convection requires space. Use shielded motor and feedback cables with 360° gland connections. Connect PE directly to the drive’s grounding terminal. Verify mains phase sequence before powering up; incorrect rotation can damage mechanics.
Maintenance suggestions: The Bosch Rexroth HCS01.1E-W0028-A-03-B-ET-EC-NN-L3-NN-FW has no serviceable parts, but inspect terminal tightness annually in high-vibration environments. Monitor DC bus voltage and temperature via EtherCAT diagnostics—trending these values helps predict capacitor aging or cooling issues. If STO fails to engage, check safety loop wiring integrity and confirm dual-channel inputs meet required voltage thresholds. Always store spare units in dry, static-safe packaging; electrolytic capacitors degrade if unused for >2 years without reforming.
