Yaskawa CIMR-VC4A0023FAA

The CIMR-VC4A0023FAA is an AC variable frequency drive (VFD) belonging to YASKAWA’s V1000 series, a high-performance Variable Frequency Drive (VFD) product. It is mainly used in industrial automation systems to precisely adjust the speed and torque of motors, achieving energy conservation, smooth starting, and braking functions.

Main Technical Parameters

• Rated Power: 7.5 kW (corresponding to 10 HP constant torque) or 11 kW (corresponding to 15 HP variable torque)
• Rated Current: Approximately 18 A (for 7.5 kW) or 24 A (for 11 kW)
• Input Voltage: Three-phase 380-480 VAC, with a frequency of 50/60 Hz
• Output Frequency Range: 0-400 Hz (enabling high-speed operation)
• Braking Methods: DC injection braking, dynamic braking transistor, no closed-loop braking, no regenerative braking
• Communication Interfaces: Multiple fieldbuses such as Modbus RTU, DeviceNet, EtherNet/IP, and PROFIBUS DP
• Protection Functions: Comprehensive protection against overload, overcurrent, overvoltage, undervoltage, phase sequence error, short circuit, and overheating
• Environmental Adaptability: IP 55 protection rating, operating temperature ranging from -10 °C to +50 °C, suitable for industrial sites

Product Features

• High Energy Efficiency: Adopts the latest IGBT technology and vector control algorithm, with an efficiency of over 96%.
• Multiple Braking Methods: Supports DC injection and dynamic braking to meet the braking needs of different loads.
• Flexible Communication: Compatible with multiple industrial protocols, facilitating integration with systems such as PLC, SCADA, and MES.
• Modular Design: Compact internal structure, convenient for on-site installation, maintenance, and upgrading.
• High Reliability: Equipped with complete self-diagnostic functions and fault records to help quickly locate problems.

Structure and Composition

• Power Module: Responsible for rectification, filtering, and voltage stabilization of the DC link.
• Power Module: An inverter bridge composed of IGBT/IGCT, realizing AC-DC-AC energy conversion.
• Control Unit: A high-speed processor based on DSP/FPGA, executing vector control, braking control, and communication protocols.
• Heat Dissipation System: Air-cooled or water-cooled radiators to ensure temperature control of the power module under high load.
• Human-Machine Interface (HMI): Parameter setting and monitoring can be conducted through a local LCD/keyboard or upper computer software.
• Communication Ports: Provides interfaces such as RS-485, Ethernet, and DeviceNet, supporting fieldbus networks.

Typical Application Fields

• CNC Machine Tools: High-precision servo control to achieve high-speed cutting and stable braking.
• Packaging and Printing: Variable frequency speed regulation improves the flexibility of the production line and reduces energy consumption.
• Textile and Papermaking: Drives high-power motors to meet the demand for continuous operation.
• Conveying and Lifting Systems: Smooth start-stop and soft start protect the mechanical structure.
• Automated Assembly Lines: Drives multi-axis robots and collaborative robots to provide precise motion control.

Installation Key Points

• On-Site Environment: Ensure the installation location has good ventilation to prevent dust and corrosive media from entering.
• Electrical Wiring: Follow the wiring diagram in the product manual, use cables that meet the rated current, and take good grounding and lightning protection measures.
• Heat Dissipation Layout: Maintain a space of at least 150 mm around the front and rear of the radiator; install additional fans or water-cooling systems if necessary.
• Parameter Setting: Before powering on for the first time, configure basic parameters such as motor model, rated power, and braking method through HMI or upper computer software.
• Commissioning and Verification: Conduct no-load operation to check the waveform, temperature, and communication status, then perform load test operation to confirm that the braking and protection functions are normal.

Daily Maintenance Recommendations

• Regular Inspection: Check the power input, wiring tightness, and dust accumulation on the radiator surface every 3-6 months.
• Temperature Monitoring: Pay attention to the operating temperature of the drive during operation; if it exceeds the rated upper limit, check whether the heat dissipation system is blocked.
• Firmware Upgrade: Upgrade according to the latest firmware version released by Yaskawa to obtain better performance and compatibility.
• Fault Diagnosis: Use the built-in self-diagnostic function to read fault codes and quickly locate problems with reference to the manual; replace the power module or IGBT if necessary.
• Spare Parts Management: Keep key components such as power modules, power modules, and cooling fans in stock to shorten maintenance downtime.

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