Bosch Rexroth HCS02.1E-W0028-A-03-NNNN Servo Drive Controller

HCS02.1E-W0028-A-03-NNNN: Stop the Clock on Your Downtime — Ship Today from Xiamen

Your line is down. Every minute costs money. The Bosch Rexroth HCS02.1E-W0028-A-03-NNNN is a 28 A single-axis compact converter from the IndraDrive HCS02 family — and we have it on the shelf right now. No lead time negotiation, no factory backorder queue. We pull, pack, and hand it to DHL within hours of your confirmed order. Whether you’re running a CNC machining center in Stuttgart, a packaging line in Chicago, or a semiconductor fab in Taipei, this unit ships to your dock fast enough to matter.

This is not a refurbished pull. Not a grey-market substitute. Every HCS02.1E-W0028-A-03-NNNN we dispatch carries full Bosch Rexroth provenance — original firmware, original label, original serial number traceable against Rexroth production records. If your maintenance team needs to swap and commission in a single shift, this is the unit that makes that possible.

URGENT REQUIREMENT? Contact: [email protected] | WhatsApp: +86 18359268345

Quick Technical Datasheet

Troubleshooting & Replacement Tips

Before you pull the old unit — read this first.

1. Parameter Backup Is Non-Negotiable
Use Rexroth IndraWorks DS or IndraWorks Engineering to export the full parameter set from the failed drive before disconnecting power. Even if the drive is faulted, it may still respond to a USB or SERCOS parameter read. Save the .par file to a USB stick and keep it on-site. A replacement HCS02.1E-W0028-A-03-NNNN ships with factory defaults — you will need to restore your axis parameters before the machine runs.

2. Firmware Version Matching
The suffix -03- in the part number encodes the communication/firmware option set. Confirm the firmware version on the replacement unit matches your existing system before commissioning. Mismatched firmware between the drive and the IndraControl or IPC controller can cause SERCOS phase errors (E8025, E8026) that prevent the axis from entering phase 4. Use IndraWorks to flash the correct firmware version if needed — this takes under 10 minutes with the right .fwa file.

3. SERCOS Address Configuration
The HCS02 does not use physical DIP switches for SERCOS addressing. The drive address is set via the H1/H2 rotary switches on the front panel. Match the address to the original unit exactly — a mismatch will cause the SERCOS master to fail ring initialization and throw a bus topology fault on the controller. Write the address down before you remove the old drive.

4. 24 V DC Control Power Sequencing
Always apply 24 V DC control power before mains. The HCS02 requires control voltage to initialize its logic and STO circuits. Applying mains first without control voltage can trigger an F2xxx power section fault on first startup. This is not a hardware defect — it is a sequencing issue. Correct the startup order and the fault clears.

5. Common Fault Codes on HCS02 Drives

• F2028 – Excessive deviation: Position following error exceeded threshold. Check motor encoder cable continuity and encoder connector seating before assuming drive failure. This fault kills more good drives than bad ones.
• F8010 – Supply phase failure: One or more mains phases missing or below threshold. Verify incoming 3-phase supply at X3 terminals before condemning the drive.
• F2036 – Excessive motor temperature: Motor NTC/PTC signal out of range. Check motor temperature sensor wiring at X6 before replacing the drive.
• E8025 / E8026 – SERCOS phase error: Ring initialization failure. Verify fiber optic connections, SERCOS address, and firmware compatibility.
• F7010 – STO active: Safe Torque Off input triggered. Check X40 STO wiring and safety relay output before assuming drive fault.

6. DC Bus Discharge Time
After mains disconnection, wait a minimum of 5 minutes before touching DC bus terminals. The HCS02 DC bus capacitors hold lethal voltage. Verify discharge with a calibrated meter — do not rely on the LED indicator alone.

Reliability in Harsh Conditions

The IndraDrive HCS02 platform was not designed for climate-controlled server rooms. It was engineered for the floor — where coolant mist, metal dust, vibration, and thermal cycling are daily realities.

The HCS02.1E-W0028-A-03-NNNN is built to IEC 60068 environmental test standards. Vibration resistance is validated to 1.5 mm displacement amplitude at 10–57 Hz and 1 g acceleration at 57–150 Hz — covering the resonance bands common in press and stamping environments. Shock resistance is rated to 15 g / 11 ms half-sine, sufficient for cabinet door slam events and transport handling.

The integrated forced-air cooling system maintains junction temperatures within spec at ambient up to 40 °C continuous, with derating curves available for installations up to 55 °C. The IP20 enclosure keeps the power electronics isolated from conductive dust and incidental liquid splash when installed in a properly sealed control cabinet. Conformal coating on the control PCB provides additional protection against humidity-induced corrosion in coastal and high-humidity manufacturing environments.

Electrostatic discharge (ESD) protection on all signal interfaces meets IEC 61000-4-2 Level 3. Conducted and radiated emissions comply with EN 55011 Class A, making the unit suitable for installation in industrial environments without additional EMC filtering in most configurations. For installations near sensitive measurement equipment, Rexroth’s recommended line filter (HNF series) should be added at the mains input.

Global Express Logistics

Our dispatch hub is in Xiamen, Fujian, China — one of China’s primary export ports with direct DHL, FedEx, and UPS gateway access. This is not a consolidation warehouse. Stock is physically on-site, pre-cleared for export, and ready to move the same business day for orders confirmed before 15:00 CST.

Typical transit times from Xiamen:

• Europe (Germany, France, Italy, Netherlands): DHL Express — 3–5 business days
• North America (USA, Canada, Mexico): FedEx International Priority — 3–4 business days
• Southeast Asia (Thailand, Vietnam, Malaysia, Indonesia): DHL Express — 2–3 business days
• Middle East (UAE, Saudi Arabia, Qatar): FedEx International — 4–5 business days
• South America (Brazil, Chile, Argentina): DHL Express — 5–7 business days
• Australia / New Zealand: DHL Express — 3–5 business days

Every shipment includes a full commercial invoice, packing list, and certificate of origin for customs clearance. HS code documentation is provided on request. For DDP (Delivered Duty Paid) shipments, we handle import duty calculation and pre-payment — your team receives the part at the dock with zero customs paperwork. For time-critical situations, we can arrange same-day pickup with DHL On-Demand Delivery and provide a live tracking link within 2 hours of dispatch.

All units are packed in anti-static foam-lined cartons with corner protection rated for air freight handling. The HCS02.1E-W0028-A-03-NNNN is shipped with its original Rexroth documentation where available, including the drive parameter sheet and quick-start commissioning guide.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
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