Product Specification – CACR-SR15SB1A/BF
May 13, 2026

Product Specification – CACR-SR15SB1A/BF

CACR-SR15SB1A/BF is a high-performance digital AC servo drive from Yaskawa classic CACR-SR series. It is designed for driving 1.5 kW AC servo motors, supporting speed control, position control and torque control modes. Adopting IGBT sine-wave PWM modulation technology, it features excellent low-speed running stability, high positioning accuracy and fast dynamic response. This model adopts SB series hardware architecture with standard industrial circuit design; the suffix A/BF represents special hardware version and factory fixed matching specification for specific CNC and automation equipment. With comprehensive protection functions and industrial rugged design, it is widely used as one-to-one replacement for old Yasnac CNC machine tools and automated production lines.

Description

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Product Specification – CACR-SR15SB1A/BF

1. General Information

  • Manufacturer: Yaskawa Electric Corporation

  • Part Number: CACR-SR15SB1A/BF

  • Product Type: Digital AC Servo Drive (SERVOPACK)

  • Series: Yaskawa CACR-SR Legacy VS-800 Series

  • Rated Output Power: 1.5 kW

  • Voltage Class: 200 VAC Three-Phase

  • Protection Class: IP20

  • Mounting Style: Cabinet rack / Plug-in module type

  • Product Status: Legacy discontinued industrial model, used for CNC machine tools and automation equipment maintenance replacement

2. Product Overview

CACR-SR15SB1A/BF is a high-performance digital AC servo drive from Yaskawa classic CACR-SR series. It is designed for driving 1.5 kW AC servo motors, supporting speed control, position control and torque control modes. Adopting IGBT sine-wave PWM modulation technology, it features excellent low-speed running stability, high positioning accuracy and fast dynamic response.
This model adopts SB series hardware architecture with standard industrial circuit design; the suffix A/BF represents special hardware version and factory fixed matching specification for specific CNC and automation equipment. With comprehensive protection functions and industrial rugged design, it is widely used as one-to-one replacement for old Yasnac CNC machine tools and automated production lines.

3. Model Number Decoding

  • CACR: AC Servo SERVOPACK

  • SR: Speed & Position Regulation Series

  • 15: Rated power 1.5 kW

  • S: Special hardware platform / Rack module structure

  • B: 200V voltage grade specification

  • 1: Control circuit and interface version

  • A/BF: Combined hardware & firmware version, dedicated matching specification for OEM equipment

4. Technical Specifications

4.1 Electrical Parameters

  • Main Circuit Input: 3-phase 200–230 VAC, ±15%, 50/60 Hz

  • Control Circuit Input: Single-phase 200–230 VAC

  • Rated Output Power: 1.5 kW

  • Rated Continuous Output Current: 10 A

  • Peak Output Current: 30 A (short-time overload capacity)

  • Control Method: IGBT sine-wave PWM modulation drive

4.2 Control Performance

  • Control Modes: Speed control, Position control, Torque control

  • Speed Adjustment Range: 1:3000

  • Speed Regulation Accuracy

    • Load variation: ±0.01%

    • Temperature variation: ±0.5%

  • Response Bandwidth: Up to 400 Hz

  • Command Input

    • Speed / Torque: Analog ±10 VDC

    • Position: Differential pulse train signal

4.3 Encoder Feedback

  • Encoder Type: Incremental optical encoder

  • Feedback Signal: A, B, Z differential signal

  • Differential transmission, strong anti-interference for long-distance wiring

  • Compatible with Yaskawa standard 1.5 kW servo motor encoder

4.4 Protection & Diagnostic Functions

  • Overcurrent protection

  • Overvoltage / Undervoltage protection

  • Electronic thermal overload protection

  • Overtemperature protection

  • Motor stall / locked rotor protection

  • Encoder signal fault detection

  • Emergency stop and external interlock alarm

  • LED fault code display for quick on-site troubleshooting

4.5 Environmental Conditions

  • Operating Temperature: 0 °C ~ +45 °C

  • Storage Temperature: -20 °C ~ +65 °C

  • Relative Humidity: 5% ~ 85% RH, non-condensing

  • Vibration Resistance: 0.5 g (10 Hz–60 Hz)

  • Cooling Method: Forced air cooling

4.6 Interface Configuration

  • CN1: Control I/O, analog command, servo enable, alarm input/output

  • CN2: Motor encoder feedback dedicated port

  • Main Terminal Block: 3-phase power input R/S/T and motor output U/V/W

  • Status LED: Power, running state and fault indication display

5. Key Features

  • 1.5kW high-power servo drive with high precision and smooth low-speed operation

  • Support multi-control modes, adapt to CNC and various automation motion control

  • Standard differential pulse and analog command input, easy system matching

  • A/BF special version with fixed hardware and firmware specification

  • Complete multi-layer protection design to protect drive and motor safely

  • Plug-in rack structure, convenient installation and maintenance replacement

  • Perfect matching with Yaskawa 1.5 kW servo motor and Yasnac CNC system

  • Industrial grade design for long-term continuous stable operation

6. Typical Applications

  • Yasnac CNC lathe, milling machine and machining center servo axis

  • Industrial automation heavy-duty transmission equipment

  • Packaging, printing and textile large production lines

  • Old equipment renovation, servo drive spare parts replacement and maintenance

  • Precision positioning and automated assembly motion control system

7. Compatibility & Replacement Notes

  • Matched Motor: Yaskawa 1.5 kW 200V AC servo motor

  • Compatible System: Yasnac CNC system and supporting OEM dedicated equipment

  • Replacement Note: A/BF is a fixed special version, must use the identical CACR-SR15SB1A/BF for direct replacement; cannot replace with other ordinary SB series models

  • Parameter Setting: Adjustable via front panel keys or dedicated Yaskawa digital operator


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