Bosch Rexroth HMS01.1N-W0054-A-07-NNNN AC Servo Inverter

HMS01.1N-W0054-A-07-NNNN: Stop the Bleeding — Get Your Line Back in 48 Hours

Every minute your servo axis is down, the losses compound. Scrap accumulates. Shift supervisors are on the phone. The maintenance manager is staring at a dead IndraDrive M cabinet with no ETA on parts. We’ve been there — and that’s exactly why this unit is on the shelf, tested, and ready to leave Xiamen today.

The HMS01.1N-W0054-A-07-NNNN is a single-axis AC servo inverter from Bosch Rexroth’s IndraDrive M platform — a modular, shared DC-bus architecture built for high-dynamic motion control in machine tools, packaging lines, and precision automation cells. The W0054 current rating (5.4 A continuous) targets compact servo axes: feed drives, rotary indexers, pick-and-place heads, and register-control rollers. The -A suffix confirms forced-air cooling; the -07 designates firmware generation 07; NNNN means no optional communication cards are pre-fitted — the base fieldbus is SERCOS III.

This is not a refurbished unit dressed up with a new label. It is original Bosch Rexroth hardware, serial number and date code intact, sourced from verified OEM decommissions and factory-surplus channels. Before it ships, it goes through a bench power-up, firmware-version check, and visual inspection. If it doesn’t pass, it doesn’t ship.

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

Quick Technical Datasheet

Troubleshooting & Replacement Tips

Before you pull the old unit, capture everything. Connect IndraWorks Engineering via the USB service port and export the full parameter set (P-0-0001 through the application-specific range). Save the .dxd file. If the drive is completely dead and won’t communicate, photograph the front-panel diagnostic LEDs and note the last fault code from the operator panel or PLC log — you’ll need it to verify the replacement is configured identically.

Common fault codes on the HMS01.1N that trigger emergency replacement:

• F2026 – Overcurrent in power section: Usually a shorted motor winding or a failed IGBT. If the motor checks out clean (winding resistance balanced, insulation >1 MΩ to PE), the inverter module is the culprit. Replace the HMS axis card; do not replace the entire supply section.
• F8022 – DC bus overvoltage: Can be a failing braking resistor on the HMV supply, but if the supply checks out, the axis inverter’s internal voltage monitoring circuit may have drifted. Swap the HMS module first — it’s the faster fix.
• F2036 – Motor encoder error: Before condemning the drive, check the encoder cable shield continuity and the EnDat/Hiperface connector at both ends. If the cable is intact, the encoder interface circuit on the HMS module may have failed — common after a lightning strike or severe EMC event on the machine.
• E8025 – Overtemperature warning leading to F8025 shutdown: Clean the fan filter and verify airflow direction (intake at bottom, exhaust at top). If the fan has seized, the module will thermal-cycle itself to death within days. Replace the module; the fan is not field-serviceable on this variant.
• F6010 – Fieldbus communication timeout: If the SERCOS III ring is intact and other axes are communicating, the SERCOS interface on this specific HMS module has failed. A replacement module with the same -07-NNNN firmware generation will restore the ring without reconfiguring the controller.

Replacement procedure — key steps engineers miss:

1. De-energize the DC bus fully. The shared bus holds charge for up to 5 minutes after mains disconnect. Measure across the DC+ and DC− terminals before touching anything. <50 V DC is safe.
2. The HMS01.1N does not have a rotary address switch — axis addressing is handled automatically via the SERCOS III ring position (physical slot order). Slot the replacement into the same mechanical position as the failed unit and the controller will assign the same axis address at startup.
3. Restore the parameter file via IndraWorks. Do not rely on the controller’s stored axis parameters alone — the drive’s internal EEPROM holds motor-specific tuning data (current controller gains, encoder offset) that the PLC does not back up.
4. Firmware generation must match. The -07 suffix on this unit is compatible with IndraMotion MLC and MTC controllers running firmware 07.xx. If your system runs firmware 06.xx, contact us before ordering — we can source the correct generation.
5. After parameter restore, run the motor identification routine (P-0-0162, command C0262) before going to production. Even with identical motor data, the identification corrects for unit-to-unit variance in the new inverter’s current measurement chain.

Reliability in Harsh Conditions

The IndraDrive M platform was not designed for a climate-controlled server room. It was designed for the factory floor — and the HMS01.1N-W0054-A-07-NNNN reflects that. The power stage uses industrial-grade IGBTs rated for junction temperatures well above the module’s ambient derating curve, giving a real-world thermal margin that consumer-grade drives simply don’t have. The DC bus capacitors are long-life, low-ESR types selected for 100,000-hour L10 life at rated temperature — not the 2,000-hour capacitors you’ll find in budget drives.

Vibration resistance meets IEC 60068-2-6 (sinusoidal, 10–500 Hz, 1 g) and IEC 60068-2-27 (shock, 15 g / 11 ms half-sine). In practice, this means the module survives being mounted on a press frame or a mobile gantry without the PCB solder joints cracking after six months. The conformal coating on the control board provides additional protection against condensation and airborne contaminants — relevant in food-processing and chemical environments where humidity cycles are aggressive.

EMC performance is certified to EN 61800-3 Category C2, with internal filtering on the control supply and shielded signal routing on the encoder interface. In high-interference environments (large VFDs nearby, welding equipment on the same bus), the HMS01.1N holds communication integrity where lesser drives drop out. That’s not marketing — it’s the reason Rexroth IndraDrive M became the default choice for multi-axis machine tool builders who can’t afford axis dropouts mid-cycle.

Global Express Logistics

Our warehouse is in Xiamen, Fujian — one of China’s primary export hubs with direct DHL and FedEx gateway access. When you place an order before 14:00 CST, the unit is packed, labeled, and handed to the carrier the same day. No batch processing, no weekly consolidation runs.

Typical transit times from Xiamen:

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

Every shipment includes a commercial invoice, packing list, and certificate of origin. For EU imports, we provide the EUR.1 movement certificate on request. For US imports, we include HTS classification 8504.40.9990 documentation to streamline customs clearance. Dangerous goods? Not applicable — servo inverters ship as standard electronics cargo under IATA non-restricted classification.

We offer EXW Xiamen, FOB Xiamen, and DAP destination Incoterms. If your procurement team requires a specific Incoterm for PO compliance, tell us at the time of order and we’ll issue the commercial invoice accordingly. Insurance is included on all shipments valued above USD 500.

Contact Information

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