Product Specification – CACR-SR20BB1AM

1. General Information

• Manufacturer: Yaskawa Electric Corporation

• Part Number: CACR-SR20BB1AM

• Product Type: Digital AC Servo Drive (SERVOPACK)

• Series: CACR-SR / VS-800 Legacy Industrial Series

• Rated Output Power: 2.0 kW

• Voltage Class: 200 VAC Three-Phase

• Protection Class: IP20

• Mounting Style: Rack plug-in module type

• Product Status: Discontinued standard universal model, widely used for Yasnac CNC and industrial automation equipment maintenance replacement

2. Product Overview

3. Model Number Decoding

• CACR: AC Servo SERVOPACK

• SR: Speed and position regulation series

• 20: Rated output power 2.0 kW

• B: Rack plug-in module structural form

• B: 200 VAC voltage grade specification

• 1: Control circuit and interface version

• A: Control board hardware configuration code

• M: Standard industrial firmware version, universal non-custom specification

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, ±15%, 50/60 Hz

• Rated Continuous Output Current: 12 A

• Peak Output Current: 36 A, short-time overload capacity

• Control Method: IGBT sine-wave PWM modulation drive

4.2 Control Performance

• Control Modes: Position control, Speed 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 Signal

  • Speed / Torque command: Analog ±10 VDC

  • Position command: Differential A/B/Z pulse train input

4.3 Encoder Feedback

• Encoder Type: Incremental optical encoder

• Feedback Signal: A, B, Z differential signal

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

• Compatible with Yaskawa standard 2.0 kW incremental encoder servo motors

4.4 Protection and Diagnostic Functions

• Overcurrent protection

• Overvoltage / Undervoltage protection

• Electronic thermal overload protection

• Overtemperature protection

• Motor stall and locked rotor protection

• Encoder signal fault detection

• Emergency stop input and external safety interlock alarm

• LED fault code display for quick on-site fault diagnosis

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

• Maximum Operating Altitude: 1000 meters above sea level

4.6 Interface Configuration

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

• CN2: Dedicated interface for motor encoder feedback

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

• Status Indicator: Power, running status and fault code LED display

5. Key Features

• 2.0 kW high-power standard servo drive, with high precision and ultra-smooth low-speed operation

• Support three control modes, adaptable to CNC machining and various industrial automation motion control scenarios

• Standard analog voltage and differential pulse interface, convenient for system matching and field wiring

• BB series universal hardware platform, AM standard version with excellent interchangeability

• Complete multi-layer protection mechanism to effectively protect servo drive and motor

• Rack plug-in modular design, easy for cabinet installation, disassembly and maintenance replacement

• Perfect matching with Yaskawa 2.0 kW servo motors and Yasnac CNC systems

• Industrial grade design, suitable for long-term continuous stable operation on site

6. Typical Applications

• Yasnac CNC lathes, milling machines and machining center servo axes

• Heavy-duty industrial automation transmission and handling equipment

• Packaging, printing and textile large production lines

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

• Precision positioning and automated assembly motion control systems

7. Compatibility and Replacement Notes

• Matched Servo Motor: Yaskawa 2.0 kW 200V AC servo motor with incremental encoder

• System Compatibility: Yasnac CNC system and mainstream industrial motion control equipment

• Replacement Note: CACR-SR20BB1AM is a standard non-custom universal version, can be replaced with equivalent BB series 2.0kW standard models normally

• Parameter Setting: Internal parameters can be freely adjusted via front panel keys or dedicated Yaskawa digital operator