VFAS3-4110PC 15 HP Drive | Toshiba with FOC Control

The Toshiba VFAS3-4110PC is a robust high-performance AC drive from the AS3 series, designed for precise motor control in demanding industrial environments. This 15 HP, 460V drive combines advanced control algorithms, integrated safety, and comprehensive connectivity in a versatile A3 frame, making it ideal for applications requiring reliability and flexibility.

Core Technical Specifications

• Brand & Model: Toshiba VFAS3-4110PC
• Series: AS3 Series High-Performance Drive
• Rated Power: 15 HP
• Supply Voltage: 3-Phase, 460 VAC Input & Output
• Current Rating: 23.5 A (Constant Torque), 31.7 A (Variable Torque)
• Frame Size: A3
• Enclosure: UL Type 1 / IP20 rated.

Advanced Control & Performance

• Control Modes: V/Hz, Sensorless Flux Vector Control (FOC), Encoderless/Encoder Torque Control.
• Frequency Range: 0.1 Hz to 590 Hz output for wide speed control.
• Carrier Frequency: Adjustable from 1 to 16 kHz for optimized motor performance and acoustic noise reduction.
• Dynamic Braking: Integrated braking circuit (external resistor required).
• Safe Torque Off (STO): Integrated safety function compliant with industry safety standards.
• Integrated Features: Built-in DC reactor and EMC filter for enhanced power quality and EMI reduction.

Communication & Connectivity

• Network Ports: Dual 10/100 Mbps Ethernet (RJ45) and one RS-485 (RJ45).
• Supported Protocols: EtherNet/IP, Modbus TCP, Modbus RTU, built-in web server (HTTP).
• Expansion Slots: Optional cards for EtherCAT, encoder feedback, and additional I/O.

I/O Configuration

• Analog Inputs: 3 channels (0-20 mA / 4-20 mA, ±10 VDC).
• Analog Outputs: 2 channels (0-20 mA, 0-10 VDC).
• Digital Inputs: 8 programmable inputs, 24 VDC sinking/sourcing.
• Digital Outputs: 3 relay outputs (1 Form C, 2 Form A).

Physical & Environmental Data

• Operating Temperature: -15°C to +50°C (5°F to 122°F).
• Mounting: Panel or wall mount.
• Motor Compatibility: 3-phase induction and permanent magnet AC motors.
• Certifications: UL Listed, CSA, CE, RoHS compliant.

Frequently Asked Questions (FAQ)

What types of applications are suitable for this 15 HP drive?

It is well-suited for applications requiring precise control and robustness, such as machine tools, conveyors, mixers, centrifugal pumps, fans, and material handling systems where reliable performance under variable loads is essential.

What is the advantage of Flux Vector Control (FOC) in this drive?

FOC provides superior low-speed torque performance, excellent speed regulation, and fast dynamic response, making it ideal for applications that require high starting torque or precise speed control under changing load conditions.

Does the integrated dynamic braking include the resistor?

No, the drive includes the internal braking chopper circuit. You must supply and connect an appropriately sized external braking resistor to handle the regenerative energy from the motor during deceleration.

How can the dual Ethernet ports be utilized?

The dual ports enable daisy-chaining of multiple drives on a single Ethernet network without additional switches, simplifying network architecture and reducing installation costs.

What is required to implement the Safe Torque Off (STO) function?

STO requires connection to a safety-rated control device (e.g., safety relay or safety PLC) via the designated terminals. The installation must be designed and validated in accordance with relevant functional safety standards.