Introduction
When a high-performance AC drive must deliver reliable operation under demanding conditions, the FANUC VFAS3-4110KPC stands ready. This Toshiba AS3 series drive is engineered for precise motor control in industrial automation environments. With its open frame design and robust specifications, it suits applications where performance and uptime are critical.
Technical Specifications Breakdown
The VFAS3-4110KPC operates on a nominal 460 VAC three-phase input and delivers 460 VAC three-phase output. It provides 150 hp with three-phase input and carries a continuous amperage rating of 211A, with a variable torque rating of 250A. The drive supports multiple control modes: V/Hz, FOC (Field-Oriented Control), encoder feedback, and torque control. This flexibility allows the drive to match the exact requirements of the connected motor and load.
Communication is handled via two Ethernet ports (RJ45) supporting EtherNet/IP, Modbus TCP, and a non-secure HTTP webserver, plus one RS-485 port (RJ45) for Modbus RTU Slave at up to 38.4 kbaud. The drive includes an integrated EMI filter and Safe Torque Off (STO) function for enhanced safety. Its operating temperature range is -15 to 50 degrees Celsius, and the enclosure carries an IP00 rating, meaning it is designed for installation inside a clean, dry enclosure.
Industry Applications
This drive is well-suited for three-phase induction and permanent magnet AC motors in applications such as conveyors, pumps, fans, compressors, and machine tools. The combination of V/Hz and FOC control enables energy-efficient operation across a wide speed range. For example, in a material handling system, the VFAS3-4110KPC can deliver precise torque control to handle varying loads while maintaining smooth acceleration and deceleration.
Installation & Setup Guidance
Mount the drive on a panel or wall using the A6 frame mounting holes. Ensure adequate ventilation around the open frame enclosure to maintain operating temperature within the -15 to 50 deg C range. The screw terminals accept user-supplied wiring for power and control connections. An external dynamic braking unit is required for applications that need rapid deceleration or overhauling load control. The built-in DC reactor and EMC filter help reduce harmonic distortion and electromagnetic interference.
Maintenance & Reliability
From a maintenance engineer's perspective, the VFAS3-4110KPC is designed for long service life with minimal intervention. The integrated EMI filter and DC reactor reduce external noise issues. The Safe Torque Off (STO) function provides a reliable method for disabling motor torque during maintenance without removing power. Regularly inspect the cooling fan and air passages for dust buildup. The user-supplied external fuse should be checked periodically to ensure proper protection. The drive's built-in battery (CR2032 replacement D0-MC-BAT) maintains parameter memory; replace it every few years as part of routine maintenance.
Compatibility & Integration
The VFAS3-4110KPC communicates via EtherNet/IP, Modbus TCP, and Modbus RTU Slave, making it compatible with most PLCs and SCADA systems. The two Ethernet ports allow daisy-chaining or network redundancy. Optional EtherCAT, encoder, and I/O cards expand its connectivity further. The drive accepts 4-20 mA, voltage, potentiometer, or pulse train input signals, and provides PWM output. Its eight discrete inputs (24 VDC sinking/sourcing) and three relay outputs (one Form C, two Form A) handle basic control and status signals.
Selection Guide & Purchasing Advice
Before ordering, verify that your application requires a 460 VAC three-phase input and 150 hp output. Confirm that your motor is compatible with the drive's control modes (V/Hz, FOC, encoder, or torque). The external dynamic braking unit and any optional cards (EtherCAT, encoder, I/O) must be sourced separately. SpareTechPLC offers this model with detailed specifications to help you make an informed decision. Please verify current lifecycle status and availability with SpareTechPLC before ordering.
Frequently Asked Questions
Q: What is the input voltage and phase requirement for the VFAS3-4110KPC?
A: The drive requires a nominal 460 VAC three-phase input.
Q: What control modes does this drive support?
A: It supports V/Hz, FOC (Field-Oriented Control), encoder feedback, and torque control modes.
Q: Does the drive include an internal dynamic braking unit?
A: No, an external dynamic braking unit is required.
Q: What communication protocols are available?
A: The drive includes EtherNet/IP, Modbus TCP, Modbus RTU Slave, and a non-secure HTTP webserver via two Ethernet ports and one RS-485 port.
Q: What is the enclosure type and IP rating?
A: The drive has an open frame enclosure with an IP00 rating, requiring installation inside a clean, dry cabinet.
