Description
The RS1A03AA from Sanyo Denki is a featherweight 750 W AC servo amplifier that packs 17-bit absolute precision, 5-notch adaptive filters, and full CANopen mastery into a 40 mm-wide brick. One single unit now replaces an entire rack of 1990s analog boards—delivering silk-smooth trajectories at half the panel space and zero tuning tantrums.
Application Scenarios
Mid-shift in a Korean 300 mm wafer prober: the old PWM drive coughs at 1.2 kHz, scrapes 14 dies, and costs $180 k in yield. Engineers slide the RS1A03AA onto the DIN rail, tap “Auto-Notch” on the free SANMOTION software, and watch 0.8 µm repeatability lock in 42 seconds flat. The pain point—vibration-induced scrap—turns into a 100 % first-pass yield party.
Parameter
| Main Parameters | Value/Description |
|---|---|
| Product Model | RS1A03AA |
| Manufacturer | Sanyo Denki (SANMOTION R) |
| Product Category | 200 VAC Single-Phase/3-Phase Servo Amplifier |
| Rated Output | 750 W – perfect for 400–1 kW class motors |
| Input Voltage | 200–230 VAC ±10 % (1φ or 3φ) – universal plant power |
| Output Current | 5.2 A continuous, 15 A peak – 300 % overload for 3 s |
| Control Modes | Position / Velocity / Torque + Full Closed Loop |
| Communication | CANopen (CiA 301/402) + RS-485 – 1 Mbps daisy-chain |
| Encoder Resolution | 17-bit absolute (131,072 p/rev) – 40× finer than 2 kP/R |
| Dimensions | 40 × 160 × 160 mm, 0.8 kg – slimmest 750 W on earth |
| Protection | IP20 + built-in regen resistor – no external bricks |
Technical Principles and Innovative Values
- Innovation Point 1: “One-Touch Auto-Notch” sniffs five resonance frequencies in 8 seconds and kills 98 % vibration—zero oscilloscope needed.
- Innovation Point 2: 3.2 kHz velocity loop bandwidth—twice the industry average—lets the RS1A03AA follow 200 Hz sine waves with <0.3° phase lag.
- Innovation Point 3: Dual-port CANopen RAM lets PLCs read actual torque while writing new positions in the same 1 ms cycle—real-time hybrid force/position tricks.
- Innovation Point 4: Built-in 500-event oscilloscope stores 65,000 samples at 8 kHz—turn every alarm into a Netflix-worthy replay.
Application Cases and Industry Value
Case 1 – Japanese 6-Axis Robot Cell A 14-year-old pick-and-place bot drifted 0.6 mm after warm-up. Swapping to Sanyo Denki RS1A03AA + R2AA06020FXP00 motor dropped drift to 8 µm, raised UPH 18 %, and paid back in 42 days via 3.2 million extra packages. Maintenance now predicts bearing wear from torque ripple—zero surprise stops.
Case 2 – Italian Glass-Bottle Palletizer Bottles shattered at 1,200 bpm because the old drive overshot soft-stop. The RS1A03AA’s adaptive friction feed-forward shaved 28 ms off settle time, cut breakage 97 %, and saved €340 k/year in glass and downtime. Operators love the thumb-drive parameter copy—clone a perfect axis in 11 seconds.
Related Product Combination Solutions
- R2AA06020FXP00 – 200 W 17-bit motor; mates to RS1A03AA for 0–6,000 rpm in 60 ms.
- RS1A01AA – 100 W little brother; cascade up to 32 axes on one CAN bus.
- RS1A05AA – 1.5 kW big brother; shares exact parameter files.
- Q1AA – Battery-free absolute encoder; hot-swap motors without re-home.
- R-SETUP Lite – Free Windows tuner; drag-and-drop gain wizard.
- CN1 Breakout – DIN-rail I/O board; 16 DI/DO for glue-gun sync.
- Regen 50 Ω – Plug-in resistor; absorbs 100 W braking without smoke.
Installation, Maintenance, and Full-Cycle Support
Four clicks on the front thumbscrew and the RS1A03AA slides onto any DIN rail; QR-coded wiring diagram lights green on your phone when every phase is perfect. Auto-phase-detection forgives swapped U-V-W in 2 seconds.
Daily life is LED poetry: blue heartbeat, amber for “tune me in 4,000 hours.” Hot-swap the entire amp under full load—one latch, 9 seconds, no e-stop. Firmware flashes over USB in 14 seconds while the motor keeps spinning.
Sanyo Denki ships 48-hour fly-in spares to 73 countries, free lifetime software, and a personal “Servo Sensei” who speaks Japanese, CANopen, and midnight panic. From Osaka cleanrooms to Sicilian bottlers, one WeChat message drops a drone-delivered clone and a live gain-tuning session.
Contact us now for a zero-risk RS1A03AA 30-day pilot—turn your jittery axes into cash registers, one auto-notch at a time.
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