Shenzhen Yaoqiang Precision Metal Products Co., Ltd.

China Manufacturer with main products: CNC Precision Machine

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380V precise speed regulation AC motor control sensorless vector drive for CNC machine

Payment Terms: L/C

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Place of Origin: Beijing in China

Specifications

380V Sensorless AC Motor Vector Control Drive for CNC Machine

A CNC lathe is a machine tool designed to remove material from a rotating work piece, using a cutting tool. Some lathes can form hollow parts by a process called metal spinning. These parts have circular cross-sections. Metal and other materials can be turned on a lathe, including wood and plastics. CNC controlled lathes use a computer to control the process of making each part with repeated accuracy and precision.

 

Application Challenges

· Precise speed regulation and torque over wide speed range

· Interlock drive with operation of CNC.

· Quick acceleration even under high torque conditions

 

Features of 303 series CNC application

Features

Benefits

Wide speed ratio

W/O PG vector: 1:100,  W/T PG vector: 1:1000

Terminal-Peripheral equipment control

Control start/stop with the contact or button to simply realize the automation control of the entire equipment system.

Vector control 0 

Real time estimates speed information of the motor only, without feedback control, real-time closed-loop control of the current all the way, 0.50 Hz outputs rated torque of up to 150%, track load change and limit output current automatically to make it not exceed the permitted maximum current value.No overcurrent error even if load mutation, rapid acceleration and deceleration to realize high performance and high reliability configuration of the universal Inverter.

Vector control 1 

Not only real time estimates speed information of the motor, but also conduct feedback control, real-time closed-loop control of both the speed and current all the way, which can realize not only speed control but also torque control, and can translate universal AC induction motor into AC speed regulation motor and AC torque motor by adopting such kind of drive mode. This is a real vector control Inverter without external speed sensor.

DC Braking

Braking frequency: 0.1~60Hz Braking time: 0~30 seconds Braking current: 0~100% rated current 

 

Power range of V5 VFD

Voltage: 3 phase 380VAC(304VAC – 460VAC)

Power: 0.75kw/1HP – 400kw/535HP

 

Specification of 303 VFD

Item

Specification

Input frequency

50/60Hz

Output frequency

0-600Hz

Overload current

150% rated current 1min.,  180% 2 sec.

Control mode

sensor-less vector control(SVC),  V/F control

Starting torque

150% 1Hz (SVC 150% 0.5Hz)

Control precision

±0.5%

Given Frequency Resolution 

Digital given: 0.01Hz,  analog given: 0.05Hz 

Running Mode 

Keyboard,  control terminal (two-line control,  three-line control),  RS485 

Output Voltage self-adjustment 

When AVR function is enabled, the input voltage changes, while the output voltage almost remains unchanged

Frequency setting signal

0~+10V; 0~20mA;

Protection function

Short circuit,  overcurrent,  overload,  overvoltage,  undervoltage,  default phase,  overheating, and external fault,  etc. 

Enclosure

IP20

Cooling mode

forced air cooling

Vibration

Less than 0.5g 

Ambient temperature / Humidity

-10 Degrees~+40 Degrees / 20~90%Rh (no condensation)

 

Tips:

A variable-frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor. A variable frequency drive is a specific type of adjustable-speed drive. Variable-frequency drives are also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives, microdrives or inverter drives. Since the voltage is varied along with frequency, these are sometimes also called VVVF (variable voltage variable frequency) drives.

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