1. Product Overview

2. Model Code Definition

• CACR: Yaskawa standard AC servo amplifier series code

• SR: Basic speed control platform, adjustable for position/torque control via internal parameters

• 03: Rated output power 0.3kW (300W)

• BC1: Power board specification: 200VAC input grade, optimized terminal layout & inner power circuit different from BB series variants

• AM: Standard analog control PCB variant: universal ±10VDC analog speed/position command interface, general-purpose encoder receiving circuit, factory default general parameters (differentiated from CS/ES/HS customized versions)

3. Core Electrical Specifications

• Main Power Input: 3-phase AC 200~230V (+10%/-15%), 50/60Hz; independent single-phase AC200~230V for control power supply

• Output Rating: Continuous rated output current 3.0Arms, peak overload current 8.5Arms for instantaneous acceleration & deceleration load

• Drive Technology: IGBT sine-wave PWM modulation for smooth low-noise motor operation

• Ambient Environment: Operating temp: 0℃~55℃; storage temp: -20℃~85℃; relative humidity ≤80% non-condensation; IP20 protection, cabinet indoor installation only

4. Key Control Features

1. Three switchable control modes: speed / position / torque control via parameter setting; AM version uses universal factory default parameters for wide compatibility with standard Yasnac VS-800 host CNC.

2. Standard analog ±10VDC command input for CNC controller speed/position instruction transmission; mature EMC anti-interference design for ordinary workshop power environment.

3. Complete full-range protection: overcurrent, overvoltage, undervoltage, overheat, encoder disconnection, regenerative circuit fault, CPU abnormal shutdown protection.

4. Front single-digit 7-segment display: real-time operating status + numerical fault alarm codes; reserved P/N external terminals for dynamic braking resistor connection for high start-stop frequency equipment.

5. Wiring Specification

• Power Terminals: R/S/T = 3-phase main power input; U/V/W = servo motor three-phase winding connection; PE = protective earthing per local electrical safety standard; P/N = external brake resistor access port

• Control Terminals: Analog command terminal receives ±10V instruction from VS-800 CNC; digital I/O for servo enable, fault reset, travel limit signal; dry-contact relay output for external equipment fault feedback; dedicated round aviation connector for incremental encoder wiring for AM standard pin definition.

6. Installation & Commissioning

• Vertical cabinet mounting, reserve upper & lower ventilation clearance, avoid arranging beside heating components (transformer, contactor); multi-drive layout needs forced air cooling.

• Full wiring inspection before power-on to avoid short circuit; AM universal parameters basically no modification required for replacement installation; implement no-load jog test first to verify rotation direction and stability before mechanical load assembly.

7. Maintenance & Troubleshooting

• Cut off all power and wait ≥10 minutes for internal capacitor full discharge before disassembly/maintenance to prevent electric shock hazard.

• Periodic maintenance: clean ventilation dust every quarter, tighten terminal screws to avoid loose contact caused by long-term vibration.

• When alarm code occurs, inspect sequentially: input power fluctuation, motor mechanical jamming, loose encoder cable, cabinet poor heat dissipation; stop repeated startup until failure root cause is fixed.