1. Model Code Definition

1. CACR: Classic Yaskawa Yasnac VS800 full-digital IGBT AC Servopack series for old CNC machine tools, discontinued original factory model

2. SR: Multi-mode servo, switchable Position / Speed / Torque control via internal parameter setup

3. 07: Rated matching motor power 0.7kW, rated continuous output current =7.6A(RMS), 3Φ AC200V input grade

4. A: Standard main control PCB layout, standard universal non-custom mainboard

5. C: ±10VDC analog voltage command input only (no differential pulse position input onboard)

6. 1: Standard factory version firmware, standard general-purpose parameter set without OEM locked parameters

7. C: Built-in internal dynamic braking circuit (integrated brake, no mandatory external brake resistor for regular load)

8. S: Compatible exclusively with incremental encoder servo motors (Yaskawa USA/USAM standard incremental series motors)

2. Electrical Ratings

• Main Power Input: 3Φ AC200V~230V, tolerance -15%~+10%, 50/60Hz

• Control Power: Independent single-phase AC200~230V separated power supply terminal

• Continuous Output Current: 7.6A RMS; Peak overload 300% for max 3s, 150% overload sustainable for 60s

• DC Bus Voltage: DC280V~320V; P/N terminals reserved for external regenerative braking resistor connection

• Command Input: Single analog ±10VDC (speed/torque command only, no digital pulse input function)

3. Environmental & Mechanical Specs

• Operating Ambient Temp: 0℃ ~ +55℃; Storage Temp: -20℃ ~ +70℃

• Humidity: 5%~80%RH non-condensing; Protection Class: IP20 (cabinet installation only)

• Installation Altitude: ≤1000m above sea level; Anti-vibration: 10~55Hz, 0.5mm single amplitude

• Cooling: Natural air convection cooling; Net Weight approx.1.9kg

4. Control Characteristics

• Control Scheme: Sine-wave PWM IGBT drive, dual closed-loop of current loop + speed loop

• Speed Regulation Ratio: 1:5000; Full-load speed fluctuation ≤±0.01%

• Feedback: CN2 port for incremental encoder feedback only (standard 2000/2500P/R incremental encoders)

• Built-in auto motor tuning, mechanical notch filter for mechanical resonance suppression

5. Terminal & Interface Description

• R/S/T: 3-phase main AC power input terminals

• U/V/W: Servo motor three-phase power output terminals

• P/N: External regenerative brake resistor spare terminals

• CN1: Opto-isolated digital I/O terminal block (Servo ON, forward/reverse limit, E-Stop, Servo Ready, Fault Alarm etc.)

• CN2: Exclusive incremental encoder feedback connector

6. Key Features

• Three control modes (Position/Speed/Torque) configurable by internal parameter

• Internal integrated dynamic brake absorbs regenerative energy under normal deceleration

• Stores up to 10 latest fault codes for maintenance troubleshooting

• Standard general parameter group, no OEM parameter lock, universal replacement for same full part number CACR-SR07AC1CS

7. Application