Toshiba VFAS3-4370PC High-Performance 50HP AC Drive

The VFAS3-4370PC delivers powerful and precise control for demanding industrial applications. This Toshiba AS3 Series drive manages three-phase motors up to 50 horsepower with advanced features. The unit includes multiple control modes and robust communication options for system integration.

Power and Electrical Specifications

• Brand: Toshiba Motors & Drives
• Model: VFAS3-4370PC
• Series: Toshiba AS3 Series High-Performance
• Rated Power: 50 HP (37 kW)
• Output Current: 74.5 Amps continuous constant torque
• Variable Torque Current: 88 Amps for fan and pump loads
• Input Voltage: 460 VAC, three-phase, 50/60 Hz
• Output Voltage: 0-460 VAC, three-phase sinusoidal
• Frequency Range: 0.1 Hz to 590 Hz ultra-wide output
• Carrier Frequency: 1 kHz to 16 kHz adjustable PWM
• Control Modes: V/Hz, Flux Vector Control (FOC), encoder, or torque

Advanced Control and Interface Features

• Eight discrete inputs with 24VDC sinking/sourcing capability
• Three relay outputs (1 Form C, 2 Form A) for status signals
• Three analog inputs (4-20mA, ±10VDC) for process control
• Two analog outputs (4-20mA, 0-10VDC) for monitoring
• Integrated Safe Torque Off (STO) safety function
• Built-in dynamic braking for fast motor stopping
• Integrated DC reactor and EMC filter for power quality
• Internal real-time clock for time-stamped event logging

Communication and Networking Capabilities

• Dual Ethernet ports (RJ45) with 10/100 Mbps speed
• One RS-485 serial communication port (RJ45)
• Supported Protocols: EtherNet/IP, Modbus TCP, Modbus RTU
• Built-in web server for configuration via HTTP
• Optional EtherCAT card for high-speed motion control
• Optional encoder and additional I/O cards available
• User sequence programming for custom automation logic

Physical and Environmental Ratings

• Enclosure: UL Type 1, IP20 rated for indoor industrial use
• Frame Size: Compact A4 design for space-efficient mounting
• Operating Temperature: -15°C to +50°C (5°F to 122°F)
• Storage Temperature: -25°C to +70°C (-13°F to 158°F)
• Relative Humidity: 5% to 95% non-condensing maximum
• Installation Altitude: Up to 1000 meters without performance loss
• Vibration Resistance: 5.9 m/s² (0.6G) maximum during operation

Package and Shipping Contents

• One complete Toshiba AS3 Series AC drive unit
• Conduit box and all necessary mounting hardware
• Comprehensive operation and programming manual
• Terminal connection guides and safety labels
• Lithium battery (CR2032 type) for memory backup
• Fast international shipping via FedEx, UPS, or DHL

Frequently Asked Questions

• What is the main advantage of Flux Vector Control (FOC) mode?
• FOC provides superior low-speed torque and precise speed regulation for demanding applications.
• How does the integrated dynamic braking function work?
• The internal braking circuit dissipates regenerative energy, allowing controlled motor deceleration.
• Can I connect this drive directly to a PLC system?
• Yes, use the EtherNet/IP or Modbus TCP ports for seamless communication with most modern PLCs.
• What motor types are compatible with this VFAS3 drive?
•  It controls standard three-phase induction motors and permanent magnet AC motors effectively.
• Is special training required to program the user sequence function?
• Basic ladder logic knowledge helps, but the intuitive software makes creating custom sequences straightforward.

We provide a full twelve-month product warranty for complete customer confidence.

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