Sumitomo SDPH Series Servo Drivers: SDPH-009CHB SDPH009CHBACG01

Technical Dossier

Product Details And Specifications

Sumitomo SDPH Series: Comprehensive Module Range and Technical Overview

The Sumitomo SDPH Series servo drivers are compact, high-performance AC servo amplifiers engineered for precision motion control in heavy industrial environments. Deployed extensively in chemical processing plants, semiconductor fabrication facilities, steel rolling mills, and automated assembly lines across Asia, Europe, and North America, the SDPH platform represents Sumitomo's core servo drive architecture for machine tool and factory automation applications. The series supports a continuous power range from 50W to 15kW, with models covering single-axis and multi-axis configurations. Its widespread installation base — spanning over two decades of production — makes SDPH one of the most frequently sourced servo driver families in the industrial MRO (Maintenance, Repair & Operations) market.

The Evolution of SDPH Architecture

The SDPH series was introduced as part of Sumitomo's transition from analog-controlled servo systems to fully digital closed-loop architectures in the early 2000s. Early variants such as the SDPH-001CHB and SDPH-002CHB used resolver-based feedback with RS-232C communication interfaces, targeting single-axis CNC and packaging machinery. Mid-generation models introduced incremental encoder support (2500 ppr standard), expanded I/O count, and compatibility with Sumitomo's proprietary MECHATROLINK-II fieldbus protocol, enabling synchronous multi-axis coordination.

Later revisions — identifiable by the suffix ACG01 or ACG02 in the full part number (e.g., SDPH009CHBACG01) — incorporated enhanced EMC filtering, wider input voltage tolerance (±15% vs. the original ±10%), and extended ambient temperature ratings (0–55°C). These revisions also introduced auto-tuning algorithms for inertia estimation, reducing commissioning time in high-inertia load applications such as rotary indexing tables and servo presses.

The SDPH series is now in the mature/end-of-life phase. Sumitomo has transitioned new designs to the RNFL and RNYF series platforms. However, the installed base of SDPH units in legacy machinery remains substantial, and direct replacement with newer series typically requires mechanical and software re-engineering. Long-term maintenance support for SDPH is therefore a primary procurement driver.

SDPH Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked models within the Sumitomo SDPH servo driver series. Each unit is a standalone single-axis AC servo amplifier unless otherwise noted.

SDPH-001CHB: 100W rated output; single-phase 200VAC input; resolver feedback; RS-232C interface.
SDPH-002CHB: 200W rated output; single-phase 200VAC; incremental encoder compatible; standard I/O 8DI/4DO.
SDPH-004CHB: 400W rated output; single/three-phase 200VAC; MECHATROLINK-II option available.
SDPH-005CHB: 500W rated output; three-phase 200VAC; enhanced regenerative braking circuit.
SDPH-007CHB: 750W rated output; three-phase 200VAC; supports absolute encoder (17-bit battery-backed).
SDPH-009CHB (SDPH009CHBACG01): 900W rated output; three-phase 200VAC; ACG01 revision with extended EMC filter and auto-tuning; this listing's primary SKU.
SDPH-010CHB: 1.0kW rated output; three-phase 200VAC; dual-loop position/speed control; analog ±10V command input.
SDPH-015CHB: 1.5kW rated output; three-phase 200VAC; high-speed pulse train input (500kpps max).
SDPH-020CHB: 2.0kW rated output; three-phase 200VAC; dynamic brake resistor built-in; IP20 enclosure.
SDPH-030CHB: 3.0kW rated output; three-phase 200VAC; regenerative unit required for duty cycles >30%.
SDPH-050CHB: 5.0kW rated output; three-phase 200VAC; external dynamic brake resistor mandatory.
SDPH-075CHB: 7.5kW rated output; three-phase 200VAC; large-frame chassis; forced-air cooling.
SDPH-100CHB: 10.0kW rated output; three-phase 200VAC; requires external EMC line filter for CE compliance.
SDPH-150CHB: 15.0kW rated output; three-phase 200VAC; top-of-range SDPH; DC bus sharing capable.
SDPH-004CHB-E: 400W export variant; 400VAC three-phase input; CE-marked; European market configuration.
SDPH-007CHB-E: 750W export variant; 400VAC three-phase input; CE-marked; MECHATROLINK-II standard.
SDPH009CHBACG02: ACG02 revision of the 900W model; updated firmware for improved vibration suppression filter (notch filter 50–2000Hz).

Sourcing Hard-to-Find & Obsolete SDPH Parts

As the SDPH series has entered end-of-life status with Sumitomo's authorized distribution network, procurement of replacement units — particularly low-volume models such as the SDPH-001CHB, SDPH-150CHB, and export-variant CHB-E units — has shifted entirely to the secondary MRO market. DriveKNMS maintains a dedicated inventory of new-surplus, refurbished, and tested-serviceable SDPH units sourced from decommissioned production lines, OEM overstock, and controlled factory closures.

For obsolete SDPH models no longer available through any channel, DriveKNMS offers board-level repair services covering the primary failure modes of this series: IGBT module degradation, electrolytic capacitor aging in the DC bus section, encoder interface IC failure, and corrupted parameter EEPROM. All repaired units are returned with a 12-month functional warranty and a full test report. Customers operating legacy machinery with no viable upgrade path are encouraged to contact DriveKNMS to establish a long-term supply agreement for critical SDPH spares.

Quality Control for the SDPH Range

Each SDPH unit processed by DriveKNMS undergoes a structured test protocol prior to dispatch. The procedure covers: (1) incoming visual inspection for physical damage, corrosion on connector pins, and capacitor bulge; (2) DC bus capacitance measurement against OEM specification (tolerance ±10%); (3) insulation resistance test at 500VDC between power terminals and chassis ground (minimum 10MΩ); (4) no-load power-on test to verify control board initialization, parameter readback, and fault code status; (5) loaded dynamic test using a matched Sumitomo servo motor on a test bench, verifying speed regulation accuracy (<0.01% at rated load), torque linearity, and encoder signal integrity at 2500 ppr; (6) MECHATROLINK-II communication handshake test where applicable; (7) final thermal soak at rated current for 30 minutes with thermocouple monitoring of heatsink temperature.

Units that fail any stage are either repaired and re-tested or classified as non-serviceable and removed from inventory. Test records are retained for 3 years and are available to customers on request.