GANDO INTERNATIONAL (HONGKONG) LIMITED
Gando AC drive, everything can be under controlled
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380V Vector Motor Control of AC Drives for Plastic Injection Molding
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 V5 series matching plastic injection application
|
Features |
Benefits |
|
For injection molding energy saving |
Green output: It adopts advanced power module drive mode to reduce the interference to the extrusion machine control circuit and sensor. |
Power range of V5 VFD
Voltage: 3 phase 380VAC (323VAC – 528VAC)
Power: 1.5kw/2HP – 400kw/535HP
Specification of V5 VFD
|
Item |
Specification |
|
Input frequency |
50/60Hz |
|
Output frequency |
0-300Hz |
|
Overload current |
150% rated current 1min., 180% 10 sec., 200% 0.5 sec. |
|
Control mode |
sensor-less vector control, V/F control |
|
Starting torque |
180% 0.5Hz (180% 0.25Hz) |
|
Control precision |
±0.05% ( ±0.02%) |
|
Torque precision |
±5% |
|
Frequency setting mode |
Operation panel setting, terminal UP/DN setting, host computer communication setting, analog setting AI1/AI2/AI3, terminal pulse DI setting |
|
Efficiency |
At rated power, 7.5kW and below power class ≥93%, 45kW and below power class ≥95%, 55kW and above power class ≥98% |
|
Frequency setting signal |
-10V~+10V; 0~+10V; 0~20mA; 0.2Hz~50kHz |
|
Protection function |
Power supply undervoltage, overcurrent protection, overvoltage protection, interference protection, abnormal comparison reference input, auto-tuning failure, module protection, heatsink overtemperature protection, inverter overload protection, motor overload protection, peripheral protection, abnormal current detection, output to ground short circuit, abnormal power failure during operation, abnormal input power, output phase failure, abnormal EEPROM, abnormal relay contact, temperature sampling disconnection, encoder disconnection, abnormal +10V power supply output, abnormal analog input, motor overtemperature (PTC), abnormal communication, abnormal version compatibility, abnormal copying, abnormal expansion card connection, terminal mutual exclusion detection failure, hardware overload protection |
|
Enclosure |
IP20 |
|
Cooling mode |
forced air cooling |
|
Vibration |
3.5mm, 2~9Hz; 10 m/s2, 9~200Hz |
|
Ambient temperature / Humidity |
-40 Degrees~+70 Degrees / 5~95%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.