CACR refers to AC Servo Drive, also known as SERVOPACK. SR stands for speed and position control type of the VS-800 series. The number 15 represents the rated power of 1.5 kW. Letter S means compatibility with Yaskawa S-series servo motors. Letter B indicates three-phase 200 VAC main power input. Digit 1 denotes single-phase 200 VAC power for the control circuit. Letter A stands for standard incremental encoder interface. Letter F represents standard AF general firmware. The suffix Y78 is a set of custom parameters pre-configured for specific original equipment manufacturers.

The main power input is three-phase 200 to 230 VAC at 50 Hz or 60 Hz, and the control circuit uses single-phase 200 to 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.

This drive supports three control modes, including ±10 VDC analog speed control, torque control and pulse-based position control. It is compatible with standard incremental encoders. The speed regulation ratio is 1:3000, and the load regulation rate is less than 0.01% at rated speed. It is fitted with RS-232C and RS-485 communication interfaces that support Modbus RTU protocol for parameter configuration and data communication.

The device is designed for vertical panel mounting. The operating ambient temperature ranges from 0°C to 45°C, and the storage temperature is from -20°C to 60°C. The relative humidity shall not exceed 90% and condensation is prohibited. Built-in protection functions cover overcurrent, overvoltage, undervoltage, overheat, encoder fault and overload protection. It features 150% overload capacity lasting for 60 seconds.

Built on mature hardware and stable AF base firmware, this servo drive delivers reliable continuous operation. The Y78 customized parameters are optimized for specific machine tools, which greatly simplifies on-site debugging and parameter setting. Standard interfaces ensure good compatibility with S-series servo motors and traditional CNC systems. Simple wiring and complete protection functions also facilitate daily maintenance.

These two models share identical hardware, electrical parameters, encoder and I/O configurations. The only distinction is that CACR-SR15SB1AF-Y78 is preloaded with Y78 dedicated custom parameters, while the standard CACR-SR15SB1AF uses default universal settings.

It is mainly applied to legacy CNC lathes, milling machines and other machine tools that require Y78 parameter settings. It is also suitable for 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.

Original production has been terminated. All available products are strictly inspected used units and refurbished products. The standard warranty period is 6 to 12 months. It is an economical and practical solution for the maintenance and upgrading of aging production lines.

CACR-SR15SB1AF-Y78 is a 1.5 kW AC servo drive from Yaskawa VS-800 (CACR-SR) series. It operates with three-phase 200 VAC power input and is compatible with Yaskawa S-series servo motors. This unit is equipped with a standard incremental encoder interface and general-purpose I/O terminals. Based on AF standard firmware, it is integrated with Y78 custom parameters tailored for specific industrial equipment. This legacy model has been discontinued by the manufacturer. At present, only fully tested second-hand and refurbished units are available for equipment maintenance and spare part replacement.

CACR stands for AC Servo Drive, also referred to as SERVOPACK. SR represents the speed and position control type of the VS-800 series. The digit 15 indicates a rated power of 1.5 kW. Letter S means the drive is matched with Yaskawa S-series servo motors. Letter B refers to three-phase 200 VAC main power supply. Digit 1 stands for single-phase 200 VAC power for the control circuit. Letter A denotes a standard incremental encoder interface. Letter F represents AF general-purpose firmware. The suffix Y78 stands for custom parameters pre-configured for dedicated OEM equipment.

The main power input is three-phase 200–230 VAC with a frequency of 50/60 Hz, and the control circuit adopts 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 is 28 A.

It supports three control modes: ±10 VDC analog speed control, torque control and pulse-based position control. The matched feedback device is a standard incremental encoder. The speed regulation ratio reaches 1:3000, and the load regulation rate is less than 0.01% at rated speed. RS-232C and RS-485 communication interfaces are built in, supporting Modbus RTU protocol for parameter setting and data transmission.

This servo drive adopts vertical panel mounting. The operating temperature ranges from 0°C to 45°C, and the storage temperature is between -20°C and 60°C. The relative ambient humidity shall not exceed 90%, and condensation is not allowed. It is equipped with comprehensive protection functions including overcurrent, overvoltage, undervoltage, overheat, encoder fault and overload protection. It can withstand 150% overload for 60 seconds.

Adopting proven hardware and stable AF base firmware, the drive ensures reliable long-term continuous operation. The embedded Y78 custom parameters are optimized for specific machine tools, which greatly reduces the workload of on-site debugging and parameter tuning. Standard interfaces deliver excellent compatibility with S-series servo motors and traditional CNC systems. With simple wiring and complete protection mechanisms, it is convenient for daily inspection and maintenance.

The two models share the same hardware structure, electrical parameters, encoder and I/O configuration. The only difference lies in the internal settings. CACR-SR15SB1AF-Y78 is preloaded with Y78 dedicated custom parameters, while the standard CACR-SR15SB1AF uses default universal parameters.

It is mainly used for legacy CNC lathes, milling machines and other machine tools that require Y78 parameter settings. It also applies to general automation equipment such as conveyor lines, rotary tables and material handling systems. It is an ideal direct replacement for faulty drives in old VS-800 servo systems.

Original production has been stopped. All available products are strictly inspected used and refurbished units. The standard warranty period is 6 to 12 months. It is a cost-effective option for maintenance and renovation of aging production lines.