Yaskawa CACR-SR20TB0BM

Product Brief Introduction

Medium-power single-axis AC servo driver of Yaskawa SR series, matched with 2.0kW medium inertia servo motor, designed for medium-load high-speed reciprocating automation axes, supporting analog speed/torque command and pulse position dual control mode for flexible host system matching.
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Description

Technical Specifications

  • Rated Output Power: 2.0kW
  • Input Power Supply: Three-phase AC 200V ~ 230V 50/60Hz
  • Rated Continuous Output Current: 13.8A three-phase AC output
  • Encoder Compatibility: 2500ppr incremental encoder / serial absolute encoder dual interface
  • Command Input Modes: Differential pulse position command, ±10V analog speed command, ±10V analog torque command
  • Max Pulse Input Frequency: 1MHz differential pulse signal
  • Operating Temperature Range: 0°C ~ +55°C continuous rated load operation
  • Full Protection System: Overvoltage, undervoltage, overcurrent, continuous overload, instantaneous overload, overheat, encoder loss, motor stall, regenerative overvoltage protection

Functional Features

  1. Dual control mode switching supports position closed-loop, speed closed-loop and torque closed-loop three control architectures
  2. Multi-stage mechanical resonance suppression filter for heavy load long transmission mechanical structure vibration elimination
  3. External regenerative resistor dedicated interface for long-stroke high inertia load energy absorption expansion
  4. Built-in 16-segment internal motion position program table for independent automatic cycle operation
  5. Multi-channel opto-isolated DI/DO terminals for mechanical limit, alarm reset, mode switching, brake control
  6. Digital operator panel with real-time torque, speed, position, fault code parameter display function

Performance Parameters

  • Positioning Repeatability: ±1 pulse mechanical positioning error
  • Speed Regulation Range Ratio: 1:10000 ultra-wide stable speed adjustment
  • Instantaneous Peak Torque Output: 350% rated torque within 1 second acceleration window
  • Position Loop Response Bandwidth: 600Hz high dynamic response closed-loop control
  • Built-in Regenerative Absorption Power: 250W internal integrated resistor; support external resistor expansion to 1000W

Material Composition

  • Main Enclosure: Thickened cold rolled steel plate anti-corrosion coated metal housing
  • Power Core Component: High-power three-phase IGBT PWM power module
  • Control Board: Multi-layer shielding FR-4 circuit board with EMC suppression filter components
  • Heat Dissipation System: Large area aluminum alloy fin heat sink with high-flow axial cooling fan
  • Wiring Interfaces: Lockable aviation metal plugs for motor power, encoder, external brake resistor wiring

Structural Characteristics

  1. Vertical DIN rail mount medium power servo driver independent unit structure
  2. Front integrated digital operation unit, multi-function LED status indicator array
  3. Metal isolation partition separates high-power main circuit cavity and low-voltage signal control cavity
  4. Rear forced air cooling fan vertical airflow channel for full heat sink coverage
  5. Dedicated independent external regenerative resistor terminal block reserved on side panel

Working Principle

Three-phase AC industrial power input passes through EMC filter and rectifier bridge to form stable DC bus voltage; main IGBT power module converts DC bus into variable frequency three-phase AC drive servo motor; accepts pulse position signal or analog speed/torque signal from upper control system; collects high-precision rotor position feedback from incremental or absolute encoder to form three-loop full closed-loop control; internal regenerative resistor absorbs motor feedback energy during deceleration; heavy load long-stroke equipment can connect external braking resistor via reserved interface to expand energy absorption capacity; all abnormal operating states trigger interlock protection to cut power output immediately.

Advantage Highlights

  • Three-phase power input supports stable continuous heavy load operation for 2.0kW medium power servo motor
  • Dual command control mode compatible with PLC pulse positioning and analog servo motion host systems
  • Expandable external regenerative braking resistor adapts to high inertia large stroke reciprocating mechanical equipment
  • Ultra-wide speed regulation ratio and high response bandwidth meet high precision heavy load dynamic positioning demand
  • Dual encoder interface compatible with incremental and absolute position feedback motors for different application positioning accuracy requirements

Applicable Industries

Automated machine tool feed axes, stamping automation transfer equipment, injection molding manipulator motion axes, printing machinery high-speed roller control, automated palletizing equipment, metal cutting secondary positioning axes

Model Series Belonging

Yaskawa CACR-SR Medium Power AC Servo Driver Series; SR20 stands for 2.0kW rated power, TB0BM defines three-phase 200V dual command analog + pulse control hardware version

Installation Requirements

  1. Vertical fixed installation on standard 35mm DIN rail inside ventilated electrical control cabinet
  2. Maintain minimum 60mm vertical top and bottom clearance for cooling fan airflow passage
  3. All motor power, encoder and external braking wiring adopt shielded dedicated servo cable
  4. High-power main circuit wiring separated from low-voltage analog signal wiring with independent cable routing
  5. Install away from contactors, frequency converters and other high electromagnetic interference equipment with ≥15m spacing

Operation Precautions

  1. Only access three-phase AC 200V~230V input power; single-phase power supply will cause DC bus undervoltage fault and continuous overload shutdown
  2. Do not block cooling fan air inlet and outlet, overheat protection will activate under long-term rated load
  3. For high inertia long stroke load, must connect external regenerative resistor to avoid regenerative overvoltage fault
  4. After power cut-off, wait minimum 15 minutes for DC bus residual voltage complete discharge before plug disassembly maintenance
  5. Calibrate mechanical resonance filter parameters according to actual load mechanical rigidity before formal production operation
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