Adjustable Mechanical Variable Speed drive VSD for Washing Machines
Washing machines are used to extract (dewater) solid materials from
liquids when they are mixed together in slurry.
A main drive motor supplies power to turn the centrifuge. AC drives
are commonly used to power the main drive motor. There are several
different types of washing machines, such as: Vertical, horizontal,
or scroll (conveyor).
- Minimize the need for gears or belts to drive the centrifuge.
- Control and maintain speed during the decanting process
- Develop high torque at very low speeds.
- Two motor applications, one for the bowl and one for the scroll.
- The bowl has a very high-reflected inertia.
- The scroll is usually in continuous regeneration, as it runs at a
slower speed than the bowl and is pulled along.
- Torque limiting on the scroll is very important.
- Some configurations require zero-speed operation of the scroll
- Dynamic braking or regenerative modules may be required if the bowl
is NOT driven by a drive.
Power range of V8 VFD
Voltage: 3 phase 380VAC (304VAC – 460VAC)
Power: 0.4kw/0.5HP – 400kw/535HP
Specification of V8 VFD
150% rated current 1min., 180% 2 sec.
sensor-less vector control(SVC), V/F control
150% 1Hz (SVC 150% 0.5Hz)
Given Frequency Resolution
Digital given: 0.01Hz, analog given: 0.05Hz
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
Short circuit, overcurrent, overload, overvoltage, undervoltage,
default phase, overheating, and external fault, etc.
forced air cooling
Less than 0.5g
Ambient temperature / Humidity
-10 Degrees~+40 Degrees / 20~90%Rh (no condensation)
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.