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Sensorless Vector Controllers AC VFD Drive for Plastic Injection Machine

Sensorless Vector Controllers AC VFD Drive for Plastic Injection Machine

Place of Origin : China
Brand Name : GANDO
Model Number : 380V-303-__KW
Certification : CE
MOQ : 1 set
Delivery Time : 2 days
Payment Terms : TT, L/C, Western Union, Paypa
Supply Ability : 200 sets per week
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Sensorless Vector Controllers AC VFD Drive for Plastic Injection Machine

Injection molding is a manufacturing technique for making parts from plastic material. Heated, fluid plastic is injected at high pressure into a mold, which is the inverse of the desired shape. The steel or aluminum mold is machined with the contours of the final product. Injection molding is used for create a variety of parts, like plastic milk cartons, containers, bottle caps, automotive dashboards, pocket combs, and most other plastic products available today. Injection molding is the most common method of part manufacturing. AC drives will commonly be used to power the hydraulic oil pressure pump for operating the mold works of an injection-molding machine. Servo drives can be used to operate the injection screw, as precision control is often required for the injection step. Significant energy savings are often realized by replacing hydraulics with electric drive systems on injection molding machines.

Application Challenges

  • High cost for initial tooling
  • Energy savings
  • Durability for continuous operation
  • Cyclical load conditions
  • Protection of expensive molds and screws
  • Quick restart in the event of power loss

Features of 303 series injection application



Analog Input Terminal

4 routes analog input: 2 routes 0~10V voltage source, 2 routes current

source 0~20mA input

injection card accepts 0-1A signal

Terminal-Peripheral equipment control

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

DC Braking

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

Power range of 303 VFD

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

Power: 0.75kw/1HP – 400kw/535HP

Specification of 303 VFD



Input frequency


Output frequency


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


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.



Cooling mode

forced air cooling


Less than 0.5g

Ambient temperature / Humidity

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


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.

Product Tags:

Sensorless Vector


vector controller


ac motor vector control

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