Model Definition

• CACR: Yaskawa SERVOPACK AC servo drive family

• SR: VS-800 series (integrated speed/position control)

• 20: 2.0 kW rated output power

• B: Three-phase 200–230 VAC main power

• B: Standard hardware revision (general industrial)

• 1: Single-phase 200–230 VAC control power

• A: Incremental encoder interface

• F: AF general-purpose firmware

• Y303: Preconfigured OEM parameter set for specific machine types

Technical Specifications

Electrical Parameters

• Main power: 3-phase 200–230 VAC (-15% / +10%), 50/60 Hz

• Control power: 1-phase 200–230 VAC (-15% / +10%), 50/60 Hz

• Continuous output current: 14.7 A

• Peak output current: 35 A (short-term)

• Output frequency: 0–400 Hz

• Power dissipation: ~120 W

• Compatible motors: Yaskawa S-series (incremental encoder)

Mechanical & Environmental Parameters

• Cooling method: Built-in forced-air cooling (fan)

• Protection class: IP20 (entire unit)

• Operating temperature: 0 °C to +55 °C

• Storage temperature: -20 °C to +85 °C

• Max. altitude: 1000 m (1% performance derating / 100 m above)

• Vibration resistance: 0.5 g (10–60 Hz); 0.2 g (60–200 Hz)

• Dimensions (H×W×D): 380 mm × 150 mm × 200 mm

• Weight: ~5.8 kg

Interface & Communication

• Motor feedback: CN2 (incremental encoder, A/B/Z-phase)

• Power terminals: R/S/T (main); L1/L2 (control); U/V/W (motor)

• Regenerative: P/B (external regenerative resistor)

• Control I/O: CN1 50-pin (isolated DI/DO)

• Analog: ±10 VDC command input; speed monitor output

• Communication: RS232/RS485 (Modbus RTU)

• Display: 7-segment LED (status/alarm codes)

Core Functions

• Three-loop control: Current/speed/position loops for high stability and precision.

• Y303 OEM tuning: Factory pre-optimized parameters reduce on-site setup time.

• Incremental encoder support: Cost-effective, reliable feedback for general automation.

• AF firmware compatibility: Works with legacy CNC and standard automation systems.

• Full protection: Overvoltage/undervoltage/overcurrent/overheating/encoder fault/overload.

• Multiple control modes: Torque, speed, position for diverse processes.

• Compact vertical design: Fits standard cabinets; easy access for maintenance.

Application Scenarios

• CNC lathes, milling machines, machining centers (incremental encoder systems)

• Production lines and special machinery requiring Y303 parameter matching

• Rotary tables, material handling, medium automated conveying equipment

• VS-800 series servo system upgrades and line retrofits

• General automation needing stable encoder feedback and OEM-level tuning

Usage and Maintenance

• Ensure cabinet airflow; keep ambient ≤45 °C to avoid performance drop.

• Complete power, feedback, control, and communication wiring before power-on.

• Verify motor and encoder specs match drive configuration.

• Clean heat sinks and air paths every 6 months; check terminal tightness.

• Calibrate control loops, feedback, and communication annually for long-term stability.