CACR‑SR15BY1SS‑Y50（Yaskawa VS‑800 / Yasnac SERVOPACK）
CACR-SR15BY1SS-Y50 is a full-digital AC servo drive from Yaskawa VS-800 (CACR-SR) series. It has a rated power of 1.5 kW, three-phase 200 VAC power input, and is designed for Yaskawa B-series servo motors. This model is equipped with enhanced I/O ports and Y50 customized firmware for dedicated industrial applications. The original production has been discontinued, and only used, tested or refurbished units are available on the current market.
Description
Model Number Explanation
CACR stands for AC Servo Drive, also known as SERVOPACK. SR represents the speed and position control type of the VS-800 series. The number 15 indicates the rated power of 1.5 kW. Letter B means it is compatible with Yaskawa B-series servo motors. Letter Y refers to the specified encoder interface type. Digit 1 stands for three-phase 200 VAC input specification. The first letter S means enhanced and modified input and output terminals. The second letter S denotes a special hardware version. The suffix Y50 is customized firmware developed for specific operating requirements.
Main Technical Specifications
The drive supports three-phase 200 to 230 VAC input with a frequency range of 50 Hz to 60 Hz. The three-phase output voltage ranges from 0 V to 230 VAC, and the rated output current is approximately 10 A. It supports three standard control modes including pulse-based position control, ±10 VDC analog speed control and torque control. It is matched with standard incremental encoder.
Built-in communication interfaces include RS-232C, RS-485 and Modbus RTU. This unit adopts vertical panel mounting. The operating ambient temperature is 0°C to 45°C, and the storage temperature is -20°C to 60°C. The relative humidity shall not exceed 90 percent, and condensation is not permitted. Complete protection functions cover overcurrent, overvoltage, undervoltage, overheat, encoder fault and overload protection.
Comparison with Similar 1.5 kW Models
CACR-SR15BY1SG-E uses standard E-version firmware and general-purpose G-type I/O. CACR-SR15BY1SG-Y72 adopts Y72 custom firmware with standard G-type I/O. CACR-SR15BY1SS-Y49 and CACR-SR15BY1SS-Y50 both feature enhanced S-type I/O and special hardware. The main difference lies in the dedicated firmware: Y49 and Y50 are separately tuned for different CNC machine tools and automation equipment.
Typical Applications
This servo drive is widely used on CNC lathes, milling machines and other machine tools. It is also applied in industrial robots, material handling equipment and rotary working tables. It serves as a replacement part for maintenance and retrofit of legacy VS-800 servo systems that require Y50 firmware.
Product Availability
Original manufacturing has been terminated. Most available products are fully inspected second-hand and refurbished units, which normally come with a warranty period of 6 to 12 months. It is a reliable and cost-effective solution for equipment repair and spare part replacement.
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