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Product basic information
Product Name: TOSBERT VF-AS3 Series Industrial Inverter
Core positioning: Designed specifically for industrial scenarios, used to control the speed of 3-phase induction motors, built-in permanent magnet synchronous motors (IPMSM), and surface permanent magnet synchronous motors (SPMSM), and does not support single-phase motors
Scope limitation: Not applicable to high-risk or quality control specific scenarios such as power plants, railways, nuclear power, aviation, life support, etc., only suitable for general industrial use
Core identification rules: The model consists of the series name, voltage level, capacity code, and function code (such as VFAS3-6750PC, where 6 represents 500V-690V and 750 represents the corresponding capacity)
Core specifications and performance parameters
(1) Voltage and power range
Voltage level, power range (HD rated), power range (ND rated), applicable motor capacity labeling
500V class 1.5kW-55kW 2.2kW-75kW in kW
600V (575V) class 2HP-75HP 3HP-100HP in HP units
690V class 2.2kW-75kW 3kW-90kW in kW
(2) Key performance indicators
Control method: sine wave PWM control
Output frequency: set range 0.01-590Hz, default 0.01-60Hz, frequency accuracy ± 0.01% ± 0.022Hz (digital input)
Carrier frequency: A1Y frame 1.0-6.0kHz (default 2.5kHz), A2Y frame 1.0-4.9kHz (default 2.5kHz)
Overload capacity: HD rated 150% -60s, ND rated 120% -60s
Frequency resolution: Input 0.1Hz on the operation panel, communication command 0.01Hz
Core protection functions: overcurrent, overvoltage, undervoltage, overload, short circuit, ground fault, overheating, etc
(3) Environmental and physical parameters
Working environment: Temperature -15 ° C~+60 ° C (capacity reduction required for temperatures above 50 ° C), relative humidity 5% -95% (no condensation), working altitude ≤ 2000m (capacity reduction of 1% for every 100m exceeding 1000m)
Physical specifications: There are two types of machine bases, A1Y (VFAS3-6022PC~6220PC) and A2Y (VFAS3-6300PC~6750PC), with a weight of 21.6kg~57kg
Cooling method: forced air cooling, cooling fan design life of 8 years
Protection level: IP00 (IEC60529), shell color RAL7016

Core functions and configurations
(1) Control and operation functions
Core control mode: supports multiple V/f characteristics such as constant V/f, variable torque, automatic torque boosting, vector control, etc
Operation functions: forward and reverse operation, jog operation, preset speed operation (up to 31 speeds), PID control, torque control, automatic acceleration and deceleration, etc
Display and Monitoring: Equipped with LCD/LED display screens, it can monitor output frequency, current, voltage, fault records, etc., and support fault trip record retention
Parameter settings: Support user default parameter saving, automatic search for parameters different from default values, multi regional parameter adaptation (Japan/North America/Asia/Europe/China)
(2) Interface and Communication Capability
Digital interface: 14 programmable digital inputs (6 optional), 3 programmable digital outputs (2 optional)
Analog interface: 5 frequency command inputs (2 optional), 2 programmable analog outputs
Communication interface: Built in Ethernet (dual port with switch, supporting EtherNet/IP, Modbus TCP, Webserver), 2-channel RS485 (supporting Modbus RTU); Optional protocols include PROFINET, DeviceNet, PROFIBUS DP, etc
Safe Interface: Supports Safe Torque Off (STO) function and complies with IEC61800-5-2 standard
Installation and wiring specifications
(1) Installation requirements
Installation foundation: It must be installed on a metal plate, and the rear panel should not be installed on flammable materials due to high temperature
Installation space: For single unit installation, a space of 10cm up and down, and 5cm left and right should be reserved; Multiple units installed side by side need to reserve a gap of ≥ 11mm, and capacity reduction is required in environments above 50 ° C or when installed side by side
Handling specifications: Models weighing over 20kg require 2 people to handle, VFAS3-6300PC~6750PC require a crane to handle, and it is forbidden to grip the front cover for handling
Peripheral equipment: Short circuit protection devices (such as MCCB, ELCB) and emergency stop devices must be installed, and thermal relays are required (when multiple motors are shared, each motor is separately configured)
(2) Wiring specifications
Core principle: Power must be disconnected before wiring, wait for at least 15 minutes, confirm that the charging light is off and the DC main circuit voltage is ≤ 45V before operation
Wiring requirements:
Power wiring: Connect a 3-phase power supply to the [R/L1], [S/L2], and [T/L3] terminals, with voltage fluctuations within ± 10% (± 10% during continuous operation at full load)
Motor wiring: Connect to [U/T1], [V/T2], [W/T3] terminals, and it is strictly prohibited to connect the power supply to the output terminal
Grounding requirements: The grounding wire should be firmly connected, with specifications not lower than the input/output wire, and should be grounded separately and not shared with the chassis screws
Braking resistor: can only be connected to [PA/+] and [PB] terminals, and it is strictly prohibited to connect between [PA/+] and [PC/-]
