Model Definition

• CACR: AC servo drive (SERVOPACK) product family

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

• 20: 2.0 kW rated output power

• B: Three-phase 200 VAC main power supply

• B: Standard hardware for general industrial applications

• 1: Single-phase 200 VAC control power supply

• A: Standard incremental encoder interface

• F: AF general-purpose base firmware

• Y303: Dedicated OEM parameter set preconfigured for specific production lines or machine types

Technical Specifications

Electrical Parameters

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

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

• Continuous output current: 14.7 A

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

• Output frequency: 0–400 Hz

• Power dissipation: ~120 W

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

Mechanical & Environmental Parameters

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

• Protection class: IP20 (entire unit)

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

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

• Max. altitude: 1000 m (above 1000 m, 1% derating per 100 m)

• 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 interface (incremental encoder signals)

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

• Regenerative: P/B terminals (external regenerative resistor)

• Control I/O: CN1 50-pin (isolated digital inputs/outputs)

• Analog: ±10 V DC 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 ensure high precision and stability.

• Incremental encoder support: Reliable, cost-effective feedback for general automation.

• Y303 OEM parameters: Factory pre-tuned for specific machines, reducing on-site setup time.

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

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

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

• Compact vertical design: Easy installation and maintenance in standard cabinets.

Application Scenarios

• CNC lathes, milling machines, and machining centers with incremental encoder systems

• Production lines and special machines requiring Y303 parameter matching

• Rotary tables, material handling, and medium automated conveying equipment

• VS-800 series servo upgrades and production line retrofits

• General industrial automation needing stable encoder feedback and OEM tuning

Usage and Maintenance

• Ensure cabinet airflow for effective cooling; keep ambient ≤45 °C.

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

• Verify motor and encoder specifications match drive configuration.

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

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