CACR-SR15SB1BF
May 29, 2026

CACR-SR15SB1BF

CACR-SR15SB1BF is a 1.5 kW AC servo drive from Yaskawa VS-800 (CACR-SR) series. It uses three-phase 200 VAC power input and is fully compatible with Yaskawa S-series servo motors. This unit is fitted with a standard incremental encoder interface, general-purpose I/O terminals and BF standard general firmware. As a discontinued legacy model, only fully tested second-hand and refurbished units are supplied on the market for equipment maintenance and spare part replacement.

Description

Model Number Explanation

CACR refers to AC Servo Drive, also named SERVOPACK. SR stands for the speed and position control type of the VS-800 series. The number 15 indicates the rated power of 1.5 kW. Letter S means the drive matches Yaskawa S-series servo motors. Letter B represents three-phase 200 VAC main power supply. Digit 1 denotes single-phase 200 VAC power for the control circuit. Letter A stands for standard incremental encoder interface. Letter F refers to BF standard general-purpose firmware without custom modifications.

Main Technical Specifications

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 common control modes: ±10 VDC analog speed control, torque control and pulse-based position control. It works with standard incremental encoders. The speed regulation ratio is 1:3000, and the load regulation rate is lower than 0.01% at rated speed. Equipped with RS-232C and RS-485 communication interfaces, it supports Modbus RTU protocol for parameter setting and data transmission.
The servo drive 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 strictly prohibited. It integrates comprehensive protection functions including overcurrent, overvoltage, undervoltage, overheat, encoder fault and overload protection. It can withstand 150% overload for 60 seconds.

Core Features

Adopting mature hardware design and stable BF standard firmware, this drive ensures reliable performance during long-term continuous operation. Standard interfaces deliver good compatibility with S-series servo motors and most traditional CNC machines and general automation equipment. It features simple wiring and convenient debugging, which effectively reduces the difficulty of on-site installation and daily maintenance.

Differences from Related Models

Compared with CACR-SR15SB1AF, these two models share the same hardware structure, electrical parameters, encoder and I/O configuration. The main difference is the firmware version: this model uses BF general firmware, while CACR-SR15SB1AF adopts AF firmware. Both are universal versions with slight differences in default parameters to adapt to different types of original equipment.

Typical Applications

It is widely used on conventional CNC lathes, milling machines and other machine tools. It also applies to medium and small automation facilities such as conveyor lines, rotary tables and material handling systems. It is an ideal replacement for faulty drives in legacy VS-800 servo systems matched with S-series motors and BF firmware.

Availability & Warranty

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 choice for the maintenance and renovation of aging production lines.


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