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Help CenterVariable Frequency AC Drives Inverter With Voltage 400VAC for Mixer
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Certification:CE
Variable Frequency AC Drives Inverter with Voltage 400VAC for Mixer
Mixers are used in a wide range of industries to combine different materials together to form one final product from the mixing process. The mixed materials can be mixed from low to high viscosity, high to low viscosity, or mixed at a constant viscosity. Mixtures may require the mixer to operate at various speeds throughout the mixing process. The properties of the mixed material are a primary consideration when defining mixing applications.
Application Challenges
· High starting torque
High viscosity materials will require a high amount of starting torque to get the mixer blades rotating.
· Mixture status
Determine the viscosity of the mixture while the mixer is operating.
· Trip-less operation
The drive must be capable of continuous operation or automatic restart after a momentary power loss or fault (< 5 ms).
· Multiple mixing speeds
Capable of changing mixing speeds throughout the mixing process for different mixtures.
· Equipment protection
Capable of detecting seizing or jamming of the mixing equipment (shaft, mixer blades, mixer paddles, etc.) and respond to avoid damage to the equipment.
Features of G7 matching mixer 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: 400VAC (380VAC – 460VAC)
Power: 22kw/30HP – 1000kw/1250HP
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 |
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