CACR-SR15SB1AF-Y79
CACR-SR15SB1AF-Y79 is a 1.5 kW AC servo drive from Yaskawa VS-800 (CACR-SR) series. It is powered by three-phase 200 VAC and compatible with Yaskawa S-series servo motors. Equipped with standard incremental encoder interface and general-purpose I/O terminals, this model runs on AF base firmware with pre-installed Y79 custom parameters for specific OEM machines. This classic product has been discontinued by the manufacturer. Currently, only fully tested second-hand and refurbished units are available for equipment maintenance and replacement.
Description
Product Overview
CACR-SR15SB1AF-Y79 is a 1.5 kW AC servo drive from Yaskawa VS-800 (CACR-SR) series. It is powered by three-phase 200 VAC and compatible with Yaskawa S-series servo motors. Equipped with standard incremental encoder interface and general-purpose I/O terminals, this model runs on AF base firmware with pre-installed Y79 custom parameters for specific OEM machines. This classic product has been discontinued by the manufacturer. Currently, only fully tested second-hand and refurbished units are available for equipment maintenance and replacement.
Model Number Explanation
CACR stands for AC Servo Drive, also known as SERVOPACK. SR represents the speed and position control series of the VS-800 platform. The number 15 means the rated power is 1.5 kW. Letter S indicates compatibility with Yaskawa S-series servo motors. Letter B refers to three-phase 200 VAC main power input. Digit 1 stands for single-phase 200 VAC power supply for the control circuit. Letter A denotes standard incremental encoder interface. Letter F represents AF general-purpose firmware. The suffix Y79 refers to a dedicated set of custom parameters configured for specific original equipment.
Main Technical Specifications
The main power input is three-phase 200–230 VAC at 50 Hz or 60 Hz, and the control circuit uses single-phase 200–230 VAC. The three-phase output voltage ranges from 0 V to 230 VAC. The continuous rated output current is 11.7 A, and the peak output current reaches 28 A.
It supports three main control modes: ±10 VDC analog speed control, torque control and pulse-based position control. It matches standard incremental encoders. The speed regulation ratio is 1:3000, and the load regulation rate is less than 0.01% at rated speed. Built-in RS-232C and RS-485 interfaces support Modbus RTU protocol for parameter configuration and data communication.
This servo drive adopts vertical panel mounting. The operating temperature ranges from 0°C to 45°C, while the storage temperature is from -20°C to 60°C. The relative humidity shall not exceed 90% and condensation is prohibited. It is equipped with complete protection functions including overcurrent, overvoltage, undervoltage, overheat, encoder fault and overload protection. It can sustain 150% overload for 60 seconds.
Core Features
Built with mature hardware and stable AF firmware, the unit delivers reliable performance for long-term continuous operation. The preloaded Y79 custom parameters are optimized for designated industrial equipment, which greatly simplifies on-site commissioning and parameter adjustment. Standard interfaces ensure excellent compatibility with S-series servo motors and traditional CNC systems. Simple wiring and comprehensive protection design make daily maintenance easy to carry out.
Differences from CACR-SR15SB1AF
These two models have identical hardware, electrical parameters, encoder and I/O configurations. The only difference is the internal settings. CACR-SR15SB1AF-Y79 is pre-programmed with Y79 exclusive custom parameters, whereas the standard CACR-SR15SB1AF uses factory default universal parameters.
Typical Applications
It is widely applied to legacy CNC lathes, milling machines and other machine tools that require Y79 parameter settings. It also suits general automation equipment such as conveyor lines, rotary tables and material handling systems. It serves as a direct replacement for faulty servo drives in old VS-800 servo systems.
Availability & Warranty
Original production has been terminated. Available products are strictly inspected used units and refurbished goods. The standard warranty period is 6 to 12 months. It is a cost-effective solution for maintenance and upgrading of aging production lines.
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