Place of Origin : China
Brand Name : GANDO
Certification : CE
Model Number : 660V-G7-__KW
MOQ : 1 set
Delivery Time : 2 days
Payment Terms : TT, L/C, Western Union, Paypa
Supply Ability : 200 sets per week
Medium Voltage AC VFD Drives for Plastic Extruder Machines
Extrusion machines are used to create product by forcing raw material, such as plastic, through a die. Extruders are used to create a wide range of products such as tubing, sheet goods, and insulation. Food processing is a popular application for extruders. Extruders employ a main drive motor to supply power to a screw, which provides the force necessary to push the raw material through the die.
Application Challenges
Features of G7 matching extruder application
Features |
Benefits |
Open Loop Vector and V/Hz Control with Torque Compensation |
Provides excellent breakaway torque for thick materials and constant torque to maintain mixing speeds under heavy loads. |
Overtorque Detection |
Provides early warning of damaging torque levels as a result of seizing mixer blades. |
Torque Reference programmable to an analog output |
The applied mixing torque is fine tuned or adjustable for different material. |
Preset frequency reference |
Preset mixing patterns can be established for different materials. |
Auto-Restart after momentary power loss |
Mixing can quickly restart after fault or momentary power loss. This keeps perishable foods from spoiling in process. |
Power loss Ride-Through |
The mixing process in not interrupted during brief power loss (< 5 ms). |
Power range of G7 VFD
Voltage: 660VAC (450VAC – 690VAC)
Power: 22kw/30HP – 400kw/535HP
Specification of G7 VFD
Item |
Specification |
Input frequency |
50/60Hz |
Output frequency |
0-400Hz |
Overload current |
150% rated current 1min. |
Control mode |
Close-loop vector control, sensor-less vector control, V/F control |
Starting torque |
150% 1hz (with PG 0hz) |
Control precision |
±0.2% (With PG ±0.02%) |
Torque precision |
±5% |
Setting frequency resolution |
Digital command 0.01hz; analog command 0.03hz/60hz |
Output frequency resolution |
0.01Hz |
Frequency setting signal |
-10V~+10V;0~+10V(20kΩ);4~20mA |
Protection function |
Over voltage, under voltage, over load, relay, overheat speed stall, grounding, instant power cut compensation( within 2 sec for operation mode. Continue to operate after the power is available), Charging protection( not to display when the dc voltage of main circuit is less than 50v) |
Enclosure |
IP20 |
Cooling mode |
forced air cooling |
Vibration |
Less than 0.2g for 20hz |
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.
AC VFD adjustable speed medium voltage variable frequency drive for plastic extruder Images |