Product Overview
When industrial processes demand precise motor control and high reliability, the FANUC VFAS3-4075PC delivers. This Toshiba AS3 series AC high-performance drive handles 10 HP with 3-phase 460 VAC input and output. It supports multiple control modes including V/Hz, FOC (flux vector control), encoder feedback, and torque mode. The drive comes in an A2 frame with a UL Type 1 enclosure and IP20 rating, making it suitable for panel or wall mounting in industrial environments.
Technical Specifications Breakdown
The VFAS3-4075PC offers a comprehensive set of specifications that ensure robust performance. Key parameters include:
- Power and Voltage: Nominal drive input and output voltage is 460 VAC, 3-phase. Horsepower rating is 10 HP with 3-phase input. Current rating is 16.5A, with a variable torque amperage rating of 23.5A.
- Control Modes: Supports V/Hz, FOC (flux vector control), encoder feedback, and torque mode. This flexibility allows the drive to handle a wide range of motor types and applications.
- Communication: Equipped with (2) Ethernet RJ45 ports and (1) RS-485 RJ45 port. Protocols include EtherNet/IP, Modbus TCP, Modbus RTU Slave, and a non-secure HTTP web server. Port speeds are 10/100 Mbps for Ethernet and up to 38.4k baud for RS-485.
- Analog I/O: 3 analog input channels (0-20 mA, 4-20 mA, +/-10 VDC, 11-bit resolution) and 2 analog output channels (0-20 mA, 4-20 mA, 0-10 VDC, 10-bit resolution).
- Discrete I/O: 8 discrete input points (24 VDC, sinking/sourcing, 4 points per common) and 3 discrete output points (250 VAC and 30 VDC relay, with 1 Form C and 2 Form A relays, 2A/point).
- Additional Features: Integrated EMI filter, Safe Torque Off (STO), built-in dynamic braking, DC reactor, EMC filter, and conduit box. Carrier frequency range is 1-16 kHz, output frequency range is 0.1-590 Hz.
- Environmental: Temperature rating is -15 to 50 deg C.
Industry Applications
This drive excels in applications requiring precise speed and torque control. Typical use cases include:
- Conveyor Systems: In manufacturing and warehousing, the VFAS3-4075PC controls conveyor belts with smooth acceleration and deceleration, reducing mechanical stress and improving throughput.
- Pumps and Fans: For variable torque loads like centrifugal pumps and fans, the drive's V/Hz or FOC mode optimizes energy consumption. The variable torque amperage rating of 23.5A supports these applications efficiently.
- Machine Tools: In CNC machines or automated assembly lines, the encoder feedback mode ensures accurate positioning and repeatability.
Installation and Setup Guidance
Mount the VFAS3-4075PC on a panel or wall using the A2 frame mounting holes. Ensure adequate ventilation around the enclosure to maintain the -15 to 50 deg C operating temperature range. Connect 3-phase 460 VAC power to the input terminals and the motor to the output terminals. Use screw terminals for all wiring. The integrated EMI filter and DC reactor help reduce electrical noise. For communication, connect Ethernet cables to the RJ45 ports and configure the drive via the web server or Modbus. Optional EtherCAT, encoder, and I/O cards can be added for expanded functionality.
Maintenance and Reliability
Regular inspection of the drive is essential for long service life. Check the external fuse (user-supplied) periodically and replace if blown. Keep the enclosure clean and free of dust to maintain proper cooling. The built-in dynamic braking and STO feature enhance safety and reduce wear on mechanical brakes. Verify that the ambient temperature stays within the -15 to 50 deg C range to prevent overheating.
Compatibility and Integration
The VFAS3-4075PC integrates seamlessly with industrial networks via EtherNet/IP and Modbus TCP. It works with 3-phase induction and permanent magnet AC motors. The RS-485 port supports Modbus RTU Slave for legacy systems. Optional EtherCAT, encoder, and I/O cards allow further expansion. The drive is compatible with most PLCs and automation controllers that support these protocols.
Selection Guide and Purchasing Advice
Before purchasing the VFAS3-4075PC, verify that your application requires 10 HP at 460 VAC with 3-phase input. Confirm the frame size (A2) fits your panel space. The drive includes a DC reactor, EMC filter, and conduit box, but you will need to supply an external fuse. SpareTechPLC stocks this model and can provide current availability and lifecycle status. Contact our team for assistance with replacement options or system upgrades.
Frequently Asked Questions
Q: What is the input voltage requirement for the VFAS3-4075PC?
A: The nominal input voltage is 460 VAC, 3-phase. The drive is designed for 10 HP applications with this voltage.
Q: Can this drive control a permanent magnet motor?
A: Yes, the VFAS3-4075PC is for use with 3-phase induction and permanent magnet AC motors.
Q: What communication protocols does the drive support?
A: It supports EtherNet/IP, Modbus TCP, Modbus RTU Slave, and a non-secure HTTP web server via its (2) Ethernet and (1) RS-485 ports.
Q: Does the drive include dynamic braking?
A: Yes, integrated dynamic braking is built into the VFAS3-4075PC.
Q: What is the operating temperature range?
A: The drive operates from -15 to 50 deg C.
