TOSHIBA TOSBERT VF-AS3 series

TOSHIBA TOSBERT VF-AS3 series

Product Overview

The Toshiba TOSBERT VF-AS3 series is a high-performance frequency converter designed for industrial scenarios, with a core positioning of precise control of 3-phase motor speed. It is specifically designed for 3-phase induction motors, built-in permanent magnet synchronous motors (IPMSM), and surface permanent magnet synchronous motors (SPMSM) in the general industrial field, and does not support single-phase motor drive. This series, with its wide voltage coverage, dual rated mode adaptation, comprehensive safety protection, and multi protocol communication capabilities, has become the core speed control component of equipment such as conveyors, pumps, fans, cranes, and machine tools.

The product strictly limits its application boundaries and cannot be used in scenarios that have a significant impact on public safety or require special quality control, such as power plants, railways, nuclear power, aerospace, life support, surgical equipment, etc. It is only suitable for motor speed regulation needs in general industrial production. The model naming follows a unified rule, for example, in "VFAS3-6750PC", "VFAS3" is the series identifier, "6" represents the voltage level covering 500V-690V, "750" corresponds to the core capacity code, "P" represents the equipped operation panel, and "C" represents the built-in EMC filter.

Core specifications and performance parameters

（1） Voltage and power coverage range

This series is divided into three categories based on voltage levels, each supporting HD (Heavy Duty, constant torque) and ND (Normal Duty, variable torque) rated modes, adapted to different load characteristics:

Voltage level HD rated mode (constant torque) ND rated mode (variable torque) Capacity labeling Unit Core model example

500V class 1.5kW - 55kW 2.2kW - 75kW kW VFAS3-6022PC（1.5kW）、VFAS3-6750PC（55kW）

600V(575V) class 2HP - 75HP 3HP - 100HP HP VFAS3-6022PC（2HP）、VFAS3-6750PC（75HP）

690V class 2.2kW - 75kW 3kW - 90kW kW VFAS3-6022PC（2.2kW）、VFAS3-6750PC（75kW）

（2） Key performance indicators

1. Control core parameters

Control method: Adopting sine wave PWM control, the output waveform is stable, reducing motor operating losses

Output frequency: Set range from 0.01Hz to 590Hz, default operating range from 0.01Hz to 60Hz, meeting the requirements of low-speed precise control and high-speed operation

Frequency accuracy: ± 0.01% ± 0.022Hz in digital input mode, ± 0.2% in analog input mode (25 ± 10 ℃ environment), industry-leading control accuracy

Frequency resolution: Input 0.1Hz on the operation panel, 0.01Hz for communication commands, and 1/2000 of the highest frequency for analog input (0.03Hz at 60Hz)

Carrier frequency: A1Y base (small capacity model) 1.0kHz -6.0kHz, A2Y base (large capacity model) 1.0kHz -4.9kHz, both default to 2.5kHz, adjustable according to noise and heat dissipation requirements

2. Overload and operational capacity

HD rated mode: 150% overload for 60 seconds, suitable for constant torque loads (such as conveyors, cranes, compressors)

ND rated mode: 120% overload for 60 seconds, suitable for variable torque loads (such as fans, pumps, blowers)

Acceleration/deceleration time: adjustable from 0.01 seconds to 6000 seconds, supporting 4 sets of acceleration/deceleration curve switching, including S-shaped acceleration/deceleration mode to avoid load impact

3. Physical and environmental parameters

Machine base specifications: divided into two categories: A1Y (VFAS3-6022PC~6220PC) and A2Y (VFAS3-6300PC~6750PC), with a weight range of 21.6kg to 57kg

Protection level: IP00 (IEC60529 standard), shell color RAL7016 (dark gray)

Cooling method: forced air cooling, built-in cooling fan designed for a lifespan of 8 years, requiring regular inspection and maintenance

Environmental adaptability:

Working temperature: -15 ℃~+60 ℃ (when the ambient temperature is greater than 50 ℃, it needs to be operated at reduced capacity)

Relative humidity: 5% -95% (without condensation)

Working altitude: ≤ 2000m (when exceeding 1000m, the rated current will decrease by 1% for every 100m increase)

Anti vibration: ≤ 5.9m/s ² (0.6G), frequency range 10Hz-55Hz

Detailed explanation of core functions and configurations

（1） Control mode and operational functions

1. Diversified control modes

V/f control: supports constant V/f, variable torque V/f, automatic torque boosting, 5-point arbitrary V/f curve setting, adapted to different motor characteristics

Advanced control: Built in vector control, PID control, torque control, supporting torque limitation and torque command input (-10V~+10Vdc)

Special functions: light load high-speed operation (improves motor efficiency under light load), droop function (load balancing when multiple inverters drive the same load), frequency jump (can set 3 jump frequencies to avoid resonance)

2. Run operational functions

Basic operation: forward and reverse control, jog operation (panel or terminal control), coast stop and emergency stop control

Preset speed: 31 preset speeds can be switched through a combination of 5 terminals, supporting quick switching between different working conditions