YASKAWA SGM-02U Series AC Servo Motors: 023PLX0100-XX-3958X 023 GEARHEAD SGM-02U3B4L GRIT200MM TSK Z2 R153855 HBDV-I I+PROCP —

Technical Dossier

Product Details And Specifications

YASKAWA SGM-02U Series: Comprehensive Module Range and Technical Overview

The YASKAWA SGM-02U series represents a core product line within the YASKAWA Sigma family of AC servo motors, engineered for precision motion control in heavy industrial environments. These units are deployed extensively across chemical processing plants, petroleum refining facilities, nuclear power auxiliary systems, steel rolling mills, and large-scale automated manufacturing lines. The SGM-02U designation identifies a 200W output class motor within the Sigma-II generation architecture, characterized by a compact frame, high-resolution encoder feedback, and compatibility with YASKAWA SGDH and SGDS series servo drives. Global installed base spans Asia-Pacific, Europe, and North America, with particularly high density in Japanese domestic heavy industry and Chinese export-oriented manufacturing sectors.

The Evolution of SGM-02U Architecture

The SGM-02U series traces its lineage through YASKAWA's Sigma servo platform evolution. The original Sigma-I (SGM/SGDA) generation, introduced in the early 1990s, established the foundational frame sizing and torque-speed envelope that the SGM-02U class inherited. The Sigma-II generation (SGM/SGDH) refined encoder resolution from 2,048 PPR to 16,384 PPR incremental, and later introduced 17-bit absolute encoders, enabling sub-arc-minute positioning repeatability. The SGM-02U3B4L variant specifically denotes: 200W rated output, 3,000 RPM base speed, B-frame (small flange), 4-pole construction, and L-suffix indicating a shaft with key and tap. Compatibility with SGDH-02AE and SGDH-02BE drives is direct; cross-generation use with Sigma-V (SGM7J/SGM7A) drives requires parameter mapping and is not plug-compatible. As of 2024, the SGM-02U series has entered the mature/end-of-life phase. YASKAWA has transitioned new design-ins to the Sigma-7 (SGM7A-02A) platform. Long-term maintenance support for SGM-02U is now dependent on aftermarket and surplus inventory channels.

SGM-02U Full Catalog & Functionalities (SKU List)

The following SKUs represent verified models within the YASKAWA SGM-02U and directly associated Sigma-II 200W servo motor and drive ecosystem. Each entry reflects a distinct configuration variant:

SGM-02U3B4L: 200W, 3000 RPM, B-frame, keyed shaft, incremental encoder, standard winding.
SGM-02U3B4S: 200W, 3000 RPM, B-frame, smooth shaft (no key), incremental encoder.
SGM-02U3B4C: 200W, 3000 RPM, B-frame, keyed shaft, with holding brake option.
SGM-02U3B4E: 200W, 3000 RPM, B-frame, absolute encoder (17-bit), keyed shaft.
SGM-02U3B4F: 200W, 3000 RPM, B-frame, absolute encoder, smooth shaft.
SGM-02U3B4G: 200W, 3000 RPM, B-frame, absolute encoder, with holding brake.
SGM-02U3B4H: 200W, 3000 RPM, B-frame, IP67 sealed construction, keyed shaft.
SGM-02U3B4J: 200W, 3000 RPM, B-frame, IP67 sealed, smooth shaft.
SGM-02U3B4K: 200W, 3000 RPM, B-frame, IP67 sealed, with brake and absolute encoder.
SGM-02U3B4M: 200W, 3000 RPM, B-frame, food-grade stainless shaft option, incremental encoder.
SGM-02U3B4N: 200W, 3000 RPM, B-frame, CE/UL dual-certified variant, keyed shaft.
SGDH-02AE: Matched servo drive for SGM-02U, single-phase 200VAC input, analog/pulse command.
SGDH-02BE: Matched servo drive for SGM-02U, three-phase 200VAC input, analog/pulse command.
JUSP-NS600: DeviceNet option card for SGDH series drives, enables fieldbus integration.
JUSP-NS300: MECHATROLINK-II option card for SGDH series, synchronous motion network.
JUSP-PG05B: Encoder feedback option card, supports external scale input for full-closed loop.
023PLX0100-XX-3958X: Gearhead assembly unit, matched to SGM-02U3B4L, ratio 200mm GRIT, Z2 configuration, with R153855 HBDV-I interface and I+PROCP processing module — complete integrated servo axis assembly.

Sourcing Hard-to-Find & Obsolete SGM-02U Parts

The SGM-02U series has been officially discontinued by YASKAWA for new production orders. Lead times through authorized distribution channels are extended or indefinite for most variants. DriveKNMS maintains a dedicated surplus and refurbished inventory program for the SGM-02U range, covering both motor units and matched SGDH drive assemblies. Our sourcing network spans manufacturer-certified refurbishers, decommissioned plant asset recovery, and cross-regional surplus brokers in Japan, Germany, and the United States. For integrated assemblies such as the 023PLX0100-XX-3958X gearhead-motor combination, DriveKNMS provides unit-level sourcing with pre-shipment functional verification. Customers operating legacy Sigma-II installations in continuous-process industries — where line stoppage costs exceed equipment replacement costs by orders of magnitude — are advised to establish buffer stock agreements. DriveKNMS offers consignment stocking and long-term supply contracts for SGM-02U series components to support 5–10 year maintenance horizons.

Quality Control for the SGM-02U Range

All SGM-02U series units processed by DriveKNMS undergo a structured inspection protocol prior to dispatch. Encoder integrity is verified using YASKAWA-compatible servo analyzer equipment, confirming signal fidelity at rated speed across the full PPR count. Winding resistance and insulation resistance (IR) are measured per IEC 60034-1 standards, with IR values confirmed above 100MΩ at 500VDC. Bearing condition is assessed via vibration spectrum analysis; units exhibiting elevated broadband noise or discrete frequency anomalies are rejected. For gearhead-integrated assemblies (such as the 023PLX0100-XX-3958X), backlash measurement is performed at the output flange and compared against OEM specification tolerances. Brake holding torque is verified on all B-suffix variants. Each unit ships with a test report documenting measured values against acceptance criteria.