Bosch Rexroth HMS01 Series Modules: HMS01.1N-W0054-A-07-NNNN

Technical Dossier

Product Details And Specifications

Bosch Rexroth HMS01 Series: Comprehensive Module Range and Technical Overview

The Bosch Rexroth HMS01 series is a line of single-axis AC servo inverters belonging to the IndraDrive family, designed for high-precision motion control in continuous-duty industrial environments. These drives are deployed across global heavy industry sectors including petrochemical processing plants, nuclear facility auxiliary systems, offshore drilling platforms, steel rolling mills, and large-scale automated assembly lines. The HMS01 designation identifies the drive as a single-axis (S) mains-supplied (M) unit within the IndraDrive H-class platform. The series covers a continuous output current range from 7 A to 210 A, accommodating motor power ratings from sub-kilowatt positioning axes to multi-hundred-kilowatt main drives. The HMS01.1N variant specifically denotes the second hardware generation (1) with standard firmware interface (N), making it the dominant installed base across facilities commissioned between 2005 and 2020. Its modular backplane architecture, SERCOS III and PROFIBUS communication compatibility, and standardized 24 VDC control voltage make it a reference platform for multi-axis coordinated motion in distributed control system (DCS) environments.

The Evolution of HMS01 Architecture

The HMS01 series is the successor to the HDS and DKS drive families within Rexroth's motion control lineage. The original IndraDrive H-class platform was introduced circa 2003, with the HMS01.1N hardware revision entering production around 2005 as a consolidation of earlier multi-axis and single-axis variants into a unified mechanical and electrical form factor. Key architectural milestones include the transition from analog resolver feedback to purely digital EnDat 2.1/2.2 and Hiperface DSL encoder interfaces, the integration of Safe Torque Off (STO) as a standard safety function compliant with IEC 62061 SIL 2 and EN ISO 13849-1 PLd, and the adoption of a common DC bus architecture enabling energy regeneration between axes. The HMS01 communicates via the Multi-Ethernet interface supporting SERCOS III, EtherCAT, PROFINET, and EtherNet/IP simultaneously from a single hardware slot, eliminating the need for protocol-specific communication cards required in earlier HDS-generation drives. Firmware compatibility spans IndraDrive firmware versions FWA-INDRV*-MPH, FWA-INDRV*-MPB, and FWA-INDRV*-MPC, with parameter migration tools available for upgrading from HMS01.1B (first-generation hardware) to HMS01.1N. As of 2024, the HMS01 series has entered the mature/end-of-active-production phase, with Bosch Rexroth transitioning new machine designs to the IndraDrive Mi (KSM/KMS) and IndraDrive Cs (HCS) platforms. Long-term spare parts availability and repair services for HMS01.1N remain critical for installed base maintenance through at least 2030 per Rexroth's published lifecycle policy.

HMS01 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked HMS01.1N models. Units are classified by current rating and application function. All models share the standard IndraDrive H-class mechanical envelope and DC bus interface.

HMS01.1N-W0007-A-07-NNNN: 7 A continuous, single-axis inverter, standard cooling, SERCOS/Multi-Ethernet interface, STO integrated.
HMS01.1N-W0012-A-07-NNNN: 12 A continuous output, compact servo axis control, 400–480 VAC input, EnDat encoder support.
HMS01.1N-W0020-A-07-NNNN: 20 A continuous, mid-range axis drive, suitable for rotary and linear servo motors up to ~7 kW.
HMS01.1N-W0028-A-07-NNNN: 28 A continuous, standard industrial servo axis, common in machine tool and packaging OEM builds.
HMS01.1N-W0036-A-07-NNNN: 36 A continuous, high-dynamic axis control, supports synchronous and asynchronous motor types.
HMS01.1N-W0054-A-07-NNNN: 54 A continuous, this unit — primary SKU of this listing; suited for high-torque servo axes in press, extruder, and crane applications.
HMS01.1N-W0070-A-07-NNNN: 70 A continuous, heavy-duty single-axis inverter, DC bus feed from HMV supply unit required.
HMS01.1N-W0090-A-07-NNNN: 90 A continuous, large-frame drive for main spindle and high-power feed axis applications.
HMS01.1N-W0110-A-07-NNNN: 110 A continuous, industrial servo inverter for high-power rotary axes in steel and paper mill drives.
HMS01.1N-W0150-A-07-NNNN: 150 A continuous, high-current single-axis unit, typically paired with HMV01.1R-W0120 supply module.
HMS01.1N-W0210-A-07-NNNN: 210 A continuous, maximum current rating in the HMS01.1N range; used in main drive and winder applications.
HMS01.1N-W0028-A-07-NNNN-S: 28 A, safety-extended variant with integrated SS1/SS2/SOS/SLS safety functions (SIL 3 capable).
HMS01.1N-W0054-A-07-NNNN-S: 54 A, safety-extended variant; identical to primary SKU with expanded functional safety option card.
HMS01.1N-W0070-A-07-NNNN-S: 70 A, safety-extended, supports Safe Limited Speed and Safe Direction monitoring.
HMS01.1N-W0090-A-07-NNNN-S: 90 A, safety-extended, for high-power axes requiring SIL 2/PLd motion safety in press and forming machines.
HMS01.1N-W0110-A-07-NNNN-S: 110 A, safety-extended, full functional safety suite for large spindle and main drive axes.

Sourcing Hard-to-Find & Obsolete HMS01 Parts

Quality Control for the HMS01 Range

Each HMS01.1N unit processed by DriveKNMS undergoes a structured inspection and functional test protocol specific to the IndraDrive H-class platform. Visual inspection covers DC bus capacitor condition, IGBT module integrity, control board connector seating, and fan assembly operation. Functional testing is performed on a dedicated IndraDrive test bench using a matched HMV01 supply module and a resistive load bank, verifying rated continuous and peak current output, DC bus voltage regulation, encoder feedback signal integrity across EnDat and Hiperface interfaces, and STO channel response time. Communication interface verification confirms SERCOS III ring closure and parameter read/write via IndraWorks DS engineering software. Firmware version is recorded and, where applicable, updated to the latest compatible release. Units exhibiting DC bus capacitor degradation are recapped using OEM-specification components. All test results are documented and supplied with each unit. Units that do not meet Rexroth's published performance specifications are quarantined and not offered for sale.

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