FANUC VFAS3-4037PC Toshiba AS3 High-Performance AC Drive, 460 VAC, 5 HP

Technical Specifications Breakdown

The VFAS3-4037PC operates on a nominal input voltage of 460 VAC and provides a nominal output voltage of 460 VAC, both three-phase. It delivers 5 HP with three-phase input and carries an amperage rating of 9.3 A, with a variable torque amperage rating of 12.7 A. The drive includes an integrated EMI filter and Safe Torque Off (STO) for enhanced safety. Its enclosure is UL Type 1 with an IP20 rating, and the temperature range spans -15 to 50 deg C. The frame size is A1, and mounting options include panel or wall. Communication ports include two Ethernet RJ45 connections and one RS-485 RJ45 port, supporting EtherNet/IP, non-secure HTTP, Modbus RTU Slave, and Modbus TCP protocols at speeds of 10/100 Mbps and up to 38.4 kbaud.

Industry Applications

In conveyor systems and material handling, the VFAS3-4037PC provides precise speed control using FOC or encoder feedback, reducing mechanical wear and improving throughput. For pump and fan applications, the variable torque rating of 12.7 A allows efficient operation across varying loads, lowering energy consumption. The drive also suits machine tool spindles where torque mode and encoder feedback maintain consistent cutting forces, enhancing part quality.

Installation & Setup Guidance

Mount the VFAS3-4037PC on a panel or wall using the A1 frame dimensions. Use screw terminals for all power and control wiring. Ensure the drive receives an user-supplied external fuse for overcurrent protection. The built-in DC reactor and EMC filter reduce external filtering needs. Connect the Ethernet and RS-485 ports using RJ45 cables for network integration. Set the control mode via the user sequence programming language to match your motor type—three-phase induction or permanent magnet AC motor.

Maintenance & Reliability

Inspect the drive periodically for dust accumulation on the IP20-rated enclosure and check that ambient temperature stays within -15 to 50 deg C. Verify the integrated dynamic braking system functions correctly during deceleration cycles. The built-in battery (type CR2032, replacement D0-MC-BAT) supports parameter retention; replace it when the low-battery indicator activates. Regular inspection of terminal connections and external fuses helps maintain reliable operation and extends service life.

What Is the FANUC VFAS3-4037PC?

When motor control meets demanding industrial environments, the FANUC VFAS3-4037PC delivers reliable operation. This Toshiba AS3 series AC drive handles 460 VAC three-phase input and output with a 5 HP rating. The drive supports multiple control modes including V/Hz, FOC, encoder, and torque mode, making it suitable for a wide range of applications. With an integrated dynamic braking system and a built-in DC reactor and EMC filter, the VFAS3-4037PC simplifies installation and reduces external component needs.

Compatibility & Integration

The VFAS3-4037PC integrates with automation networks through its two Ethernet ports supporting EtherNet/IP and Modbus TCP, and one RS-485 port supporting Modbus RTU Slave. It accepts input signals from 4-20 mA, voltage, potentiometer, or pulse train sources. The drive provides three analog input channels (11-bit resolution, 0-20 mA and 4-20 mA current, +/-10 VDC voltage) and two analog output channels (10-bit resolution, 0-20 mA and 4-20 mA current, 0-10 VDC voltage). Eight discrete inputs (24 VDC, sinking/sourcing) and three relay outputs (one Form C SPDT, two Form A SPST) handle control and status signals. Optional EtherCAT, encoder, and I/O cards expand functionality.

Selection Guide & Purchasing Advice

Before ordering the VFAS3-4037PC, confirm your motor specifications match the drive's 5 HP, 9.3 A rating and 460 VAC three-phase supply. Verify the enclosure type (UL Type 1, IP20) suits your environment. The drive includes a built-in DC reactor and EMC filter, but you must supply an external fuse. Contact AutoDCSTech for current lifecycle status and availability, as this product may be discontinued or obsolete. Our team can help verify compatibility and suggest alternatives if needed.