Yaskawa SGDH-01AEY901 – 100W Analog/Pulse Servo Drive | Sigma-II Series
Engineering Background: The Yaskawa SGDH series is the core amplifier platform of the Sigma-II (Σ-II) servo system, one of the most widely deployed motion control architectures in precision manufacturing. The SGDH-01AEY901 is a 100W-class single-axis drive engineered for high-resolution positioning, smooth velocity control, and deterministic torque response in compact machine axes.
Product Positioning: This unit carries cross-reference part numbers 61-420450-00 and 1FK7022-5AK71-1LH3, indicating OEM integration into semiconductor capital equipment and precision motion stages. It is sourced as verified surplus and is suitable for direct replacement, spare-parts inventory, or system refurbishment programs.
Complete Technical Specifications
| Manufacturer | Yaskawa Electric Corporation |
| Model Number | SGDH-01AEY901 |
| Series | Sigma-II (Σ-II) SGDH |
| Cross-Reference P/N | 61-420450-00 / 1FK7022-5AK71-1LH3 |
| Rated Output Power | 100 W |
| Input Voltage | Single-phase 200–230 VAC, 50/60 Hz |
| Control Method | Analog voltage / Pulse train (Position, Velocity, Torque) |
| Encoder Interface | Incremental encoder (2,048 P/R standard) |
| Max Output Current | 2.8 A (peak) |
| Speed Ratio | 1:5,000 |
| Speed Regulation | ±0.01% (load), ±0.01% (voltage) |
| Position Control | Pulse + direction / CW-CCW / A-B quadrature |
| Regenerative Resistor | Built-in |
| Protection Class | IP20 (panel-mount) |
| Operating Temperature | 0–55 °C |
| Weight (unit) | ~800 g |
| Communication | RS-422 (SigmaWin+ compatible) |
| Approvals | CE, UL, cUL |
Proven Application Environments
The SGDH-01AEY901 is specified by process and equipment engineers across demanding environments:
- Semiconductor Wafer Handling: Wafer transfer robots, load-lock actuators, and reticle stage drives in CVD, PVD, and etch tools — including Applied Materials and Lam Research platforms where the 61-420450-00 cross-reference originates.
- Flat Panel Display (FPD) Manufacturing: Glass substrate transport axes requiring sub-micron repeatability and vibration suppression.
- CNC Machining Centers: Auxiliary axis control (tool changers, rotary tables, pallet shuttles) on Fanuc and Mitsubishi-based machines.
- Laser Cutting & Marking Systems: High-speed galvo-assist and beam-positioning axes where analog torque command is preferred.
- Medical Device Assembly: Dispensing, pick-and-place, and inspection gantries requiring IEC 61800-compliant drives.
- PCB Drilling & Routing: Spindle Z-axis and X/Y table drives on Excellon and Schmoll platforms.
Engineering Advantages
- Sigma-II Autotuning: One-parameter tuning algorithm reduces commissioning time from hours to minutes on new or replacement installations.
- Vibration Suppression Filter: Notch filter (50–5,000 Hz) eliminates mechanical resonance without external hardware.
- Fully Closed-Loop Ready: External encoder input supports linear scale feedback for direct-drive and ballscrew axes.
- Compact Footprint: 45 mm wide panel-mount form factor fits high-density control cabinets.
- SigmaWin+ Compatible: Full parameter backup, oscilloscope, and tuning via USB-to-RS-422 adapter — no proprietary programmer required.
- Drop-in Replacement: Identical connector pinout and parameter set to standard SGDH-01AE, minimizing re-commissioning effort.
System Architecture & Signal Flow
In a typical Sigma-II servo loop, the host controller (PLC, CNC, or motion card) issues a pulse-train or ±10 V analog command to CN1. The SGDH-01AEY901 closes the velocity/position loop via the encoder feedback on CN2, drives the motor through the U/V/W power terminals, and reports status via CN1 I/O. The SEN signal enables high-resolution absolute position output when paired with an absolute encoder option. Parameter group Pn000–Pn900 governs all loop gains, I/O polarity, and protection thresholds — fully accessible via SigmaWin+.
Sourcing & Quality Verification
- Units are inspected for physical integrity: connector condition, PCB cleanliness, and label legibility.
- Firmware version and parameter defaults are verified against Yaskawa SGDH series documentation.
- Each unit ships with an inspection record and traceable lot reference.
- Konmask.com sources exclusively from decommissioned OEM equipment and authorized surplus channels — no counterfeit risk.
Procurement Process
- Submit your RFQ via Konmask.com or email [email protected].
- Receive stock confirmation, inspection photos, and lead time within 24 hours.
- Approve proforma invoice — payment via T/T, PayPal, or credit card.
- Unit ships with DHL/FedEx express; tracking provided same day.
- 30-day DOA warranty with full replacement or refund.
Technical FAQ
Q: Is SGDH-01AEY901 compatible with standard SGMAH-01A motors?
A: Yes. The SGDH-01AEY901 is rated for 100W SGMAH/SGMPH motors. Verify encoder type (incremental vs. absolute) matches your motor nameplate before installation.
Q: What does the “Y901” suffix indicate?
A: The Y9xx suffix denotes an OEM-specific special specification, typically involving modified I/O polarity, pre-loaded parameter sets, or connector variants requested by the original equipment manufacturer.
Q: Can I use SigmaWin+ to restore factory parameters?
A: Yes. Connect via USB-RS422 adapter, select SGDH series, and use the parameter initialization function (Fn005) to restore defaults before re-tuning for your application.
Q: What is the difference between SGDH-01AE and SGDH-01AEY901?
A: Electrically and mechanically identical. The Y901 variant carries OEM-customized default parameters. Konmask recommends re-initializing parameters (Fn005) and re-tuning for any new application.
Q: Do you provide a test report or functional test?
A: Visual and connectivity inspection is standard. Powered functional testing is available on request — please specify when submitting your RFQ.
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