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Help Center380V AC Variable Adjustable Speed Drives ASD for Conveyor
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Certification:CE
380V AC Variable Adjustable Speed Drives ASD for Conveyor
Conveyors are used in a broad range of industries and applications to move packaged goods, assemblies, process byproducts, or any material from one place to another. A process designer will typically look for opportunities to use the force of gravity to accomplish product movement. Electric motors are commonly used when gravity cannot be employed or when the speed of a gravitational fall needs to be controlled.
Airports, mines, cement plants, distribution facilities, assembly, and food processing plants all utilize conveyors. Conveyors are typically constant torque loads, meaning the required torque to drive a conveyor is independent of speed. A fixed amount of torque is also required to overcome the frictional, or machine drag, portion of the total load. Conveyors can have nominal amounts of friction and machine inertia for which to compensate.
Application Challenges
Motor and Drive sizingConveyors requires a good deal of load and speed calculations, combined with actual testing to ensure proper size (power) requirements. Smooth product motion
Acceleration/Deceleration times combined with S-Curve “smoothing” characteristics need fine-tuning to ensure the product is not damaged and/or moved out of position for staging to subsequent processes. Rapid deceleration or downhill speed control of conveyors cause load regeneration in drives.
Care should be taken to ensure proper sizing of a drive’s dynamic braking package or regenerative converter, to prevent drive overvoltage faults. Electronic Gearing
Follow an external encoder to synchronize conveyor with other sections of the process Coordinate conveyor motion with external machine axes Reduce application development time
Power range of V8 VFD
Voltage: 3 phase 380VAC (304VAC – 460VAC)
Power: 0.4kw/0.5HP – 400kw/535HP
Specification of V8 VFD
|
Item |
Specification |
|
Input frequency |
50/60Hz |
|
Output frequency |
0-600Hz |
|
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 |
±0.5% |
|
Given Frequency Resolution |
Digital given: 0.01Hz, analog given: 0.05Hz |
|
Running Mode |
Keyboard, control terminal, 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. |
|
Enclosure |
IP20 |
|
Cooling mode |
forced air cooling |
|
Vibration |
Less than 0.5g |
|
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.
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