TOSHIBA TOSBERT VF-AS3 series

Automatic functions: automatic acceleration and deceleration, automatic torque increase, regenerative energy suppression control, reducing the difficulty of manual debugging

Fault handling: Supports 10 automatic retry functions, with an adjustable retry waiting time of 0-10 seconds, and fault records can be retained

（2） Interface and Communication System

1. Digital interface

Digital input: 14 programmable terminals (including 6 optional extensions), supporting 204 function assignments, compatible with positive/negative logic, compliant with IEC61131-2 logic type 1

Digital output: 3 programmable terminals (including 2 optional extensions), output capacity 24Vdc/50mA, supporting 262 function assignments

Pulse interface: The digital input terminal [S4] [S5] can receive pulse frequency signals (up to 30kbps), and the digital output terminal [FP] can output pulse signals (up to 30kbps, with a duty cycle of 50%)

2. Simulation interface

Analog input: 5 frequency command inputs (including 2 optional extensions), supporting signal types such as 0~10V, -10V~+10V, 4~20mA, etc. The input impedances are 31.5k Ω (voltage signal) and 250 Ω (current signal), respectively

Analog output: 2 programmable terminals, supporting 0~10V, 0~20mA, 4~20mA outputs, can allocate 54 monitoring parameters (such as frequency, current, voltage)

3. Communication capability

Built in interface:

Ethernet (dual port with switch): Supports EtherNet/IP, Modbus TCP, Webserver, enabling remote monitoring and control

RS485 (2 channels): Supports Toshiba inverter specific protocol Modbus RTU， Adapt to industrial bus networking

Optional extension protocols: PROFINET, DeviceNet, PROFIBUS DP, EtherCAT, CANopen, compatible with mainstream industrial control systems

（3） Security and protection functions

1. Core security design

Safe Torque Off (STO): Compliant with IEC61800-5-2 standard, cutting off the motor torque output does not affect the power supply of the control circuit, ensuring the safety of personnel and equipment

Insulation protection: Built in grounding detection function to avoid the risk of electric shock caused by poor grounding

Operation safety: It is forbidden to disassemble the front cover during operation. When disassembling the front cover and front small cover, the power must be turned off and the capacitor discharge must be confirmed to be completed

2. Comprehensive protection function

Specific functions of protection types

Electrical protection for overcurrent, overvoltage, undervoltage, short circuit (load side), ground fault (load side), input phase loss, output phase loss

Thermal protection for frequency converter overload, motor overload (electronic thermal protection), brake resistor overload, and frequency converter overheating

Mechanical protection stall prevention (during operation/acceleration), over torque protection

Other protective power sources include instantaneous power outages (≥ 15ms), EEPROM failures, RAM failures, and communication errors

Installation and wiring specifications

（1） Installation requirements

1. Installation foundation and space

Installation carrier: It must be fixed on a metal plate and used to assist in heat dissipation. It is prohibited to install it on flammable materials or non-metallic surfaces

Installation space:

Single installation: Reserve ≥ 10cm vertically and ≥ 5cm horizontally

Multiple parallel installations: distance between adjacent inverters ≥ 11mm to avoid hot air backflow

Environmental requirements: Install indoors, away from direct sunlight, corrosive gases, oil mist, metal dust, and avoid locations with severe vibrations

2. Handling and fixing

Transportation specifications: Models weighing ≤ 20kg can be transported by a single person, while models weighing ＞ 20kg require cooperation from two people; VFAS3-6300PC~6750PC (A2Y machine base) needs to be transported by a crane and lifted through the top lifting hole. It is forbidden to grip the front cover or wiring hole during transportation

Fixing method: M5 (A1Y machine base) or M8 (A2Y machine base) screws are used for fixing, with tightening torques of 2.6N · m and 11.8N · m respectively, to ensure a firm installation

（2） Wiring specifications

1. Preparation before wiring

Power off requirement: Before wiring, all input power must be cut off, wait for at least 15 minutes, confirm that the charging light is off, and use a tester with a range of 1400Vdc or above to test the DC main circuit (between PA/+and PC/-) voltage to ensure it is ≤ 45V before operation

Personnel qualifications: Wiring work must be completed by electricians with professional qualifications to avoid accidents caused by incorrect wiring

2. Core wiring requirements

Power wiring: Connect the 3-phase power supply to the [R/L1], [S/L2], and [T/L3] terminals, and the voltage fluctuation should be within the range of -15% to+10% of the rated voltage (± 10% when operating at full load)

Motor wiring: Connect the 3-phase winding of the motor to the [U/T1], [V/T2], and [W/T3] terminals, and ensure that the phase sequence is correct to avoid motor reversal; It is strictly prohibited to directly connect the power supply to the output terminal