Product Overview
When a variable torque application demands reliable performance and easy serviceability, the FANUC VFAS3-4185PC delivers. This Toshiba AS3 series AC high-performance drive handles 25 HP at 150% overload and 30 HP at 120% overload, making it a versatile choice for industrial environments. Designed with a maintenance engineer in mind, it offers dual rating through parameter change, embedded STO safety, and built-in Ethernet for straightforward integration.
Technical Specifications Breakdown
The VFAS3-4185PC operates on 3-phase input and output at 460 VAC. It provides 46.3 A at 120% overload and 39.2 A at 150% overload, ensuring robust current capacity for demanding loads. The UL Type 1 enclosure protects against dust and light splashes, while the A3 frame keeps dimensions manageable at 21.80 inches high, 8.30 inches wide, and 9.20 inches deep. These specs allow the drive to fit into standard industrial panels without excessive space requirements.
Industry Applications
In pumping and fan systems, the VFAS3-4185PC's variable torque rating optimizes energy use and reduces mechanical stress. For conveyor applications, the heavy duty 150% overload capability handles short-duration peak loads without tripping. Maintenance teams appreciate the real-time clock for past trip monitoring, which simplifies fault diagnosis and reduces downtime.
Installation & Setup Guidance
Mount the drive in a clean, dry location within the UL Type 1 enclosure rating. Use the built-in dual-port Ethernet for network connectivity and the two-wire/four-wire RS485 for serial communication. The QR code display provides quick access to parameter information and fault troubleshooting, speeding up commissioning. Ensure all wiring follows local codes and the drive's rated 460 VAC supply.
Maintenance & Reliability
Routine inspection focuses on the cooling fan and air filters to prevent overheating. The embedded STO safety terminal, compliant with IEC 61800-5-2 and SIL3 per IEC 61508, reduces the need for external safety components, simplifying maintenance. The eight programmable digital inputs and three programmable digital outputs allow flexible monitoring without extra hardware.
Compatibility & Integration
The VFAS3-4185PC integrates with PLCs and SCADA systems via its built-in Ethernet IP and RS485 ports. Optional EtherCAT, encoder, and I/O cards expand connectivity for advanced motion control. The drive supports V/Hz, FOC, encoder, and torque control modes, making it compatible with a wide range of motors and applications.
Selection Guide & Purchasing Advice
Before ordering, verify your motor's horsepower and current requirements against the VFAS3-4185PC's dual ratings: 25 HP heavy duty and 30 HP normal duty. Confirm the 460 VAC supply and 3-phase input match your facility. SpareTechPLC stocks this drive as a new unit, ready for immediate shipment. Contact our team for assistance with compatibility or accessories.
Frequently Asked Questions
Q: What is the difference between the heavy duty and normal duty ratings on the VFAS3-4185PC?
A: Heavy duty provides 25 HP with 150% overload for 60 seconds, while normal duty offers 30 HP with 120% overload. You can switch between them via a parameter change.
Q: Does the VFAS3-4185PC include built-in safety functions?
A: Yes, it has an embedded STO safety terminal compliant with IEC 61800-5-2 and SIL3 per IEC 61508.
Q: What communication protocols does this drive support?
A: It includes built-in dual-port Ethernet IP and two-wire/four-wire RS485. Optional EtherCAT, encoder, and I/O cards are available.
Q: What enclosure rating does the VFAS3-4185PC have?
A: It has a UL Type 1 enclosure, suitable for indoor use in clean environments.
Q: Can I monitor past faults with this drive?
A: Yes, the real-time clock enables past trip monitoring and calendar functionality for easier troubleshooting.
