| Sign In | Join Free | My burrillandco.com |
|
| Ask Lasest Price | |
| Brand Name : | GANDO |
| Certification : | CE |
| Model Number : | 660V-G7-__KW |
| 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.
|