VFD control panel
With the frequency technology become more and more mature, the use
of frequency converter, PLC, digital-analog conversion module,
temperature sensor, temperature module and other devices combine to
form a closed-loop automatic temperature control system, the system
can work smoothly and more importantly, Its energy-saving effect of
up to 30% or more, can bring good economic benefits.
The frequency convert panel adopts the enclosed cabinet structure,
adopts the frame skeleton, the surface coating spray, and easy to
install the cabinet, the upper end may dispose the main line, the
frequency converter panel leads to the cabinet outward appearance
to be possible to operate directly, according to demands may
establish the local and long-distance Control or PC / PLC
communication control, with a very intuitive variety of display
functions. Frequency converter is a dedicated accessory products,
the frequency’s function of control speed and the main technical
parameters depends on the inverter’s built-in specifications and
external configuration. Frequency inverter cabinet has great
differences according to different usages and different functions.
according to the needs of the operating conditions can be installed
AC input reactor, output reactor, DC reactor, EMI filter, braking
unit, breaking resistor, contactor, intermediate relay, thermal
relay, PLC, GOT , watt-hour meter, cooling fan, etc., According to
the system working conditions, to set a variety of control buttons
and indicators such as forward, reverse, motor speed boost, motor
speed deceleration, jog forward, jog reverse, manual / automatic,
emergency stop, frequency conversion, power frequency, PLC control,
touch screen and so on.
Frequency converter control panel function
the power switch and protection frequency converter panel are
equipped with low-voltage MCCB which is connected to the power
line, in addition to complete and disconnect the circuit, and also
against short-circuit, overload protection, cut off the power
during maintenance.
Set frequency start, frequency stop button on start-stop control
function frequency conversion panel for the inverter operation
control, convenient to operate at site.
n, cut off the power during maintenance.
Set frequency adjustment potentiometer on frequency (speed)
adjustment Frequency converter panel, you can easily manually
adjust the inverter’s output frequency to control the motor speed
during maintenance.
The table shows the voltage meter, ammeter, frequency meter and
various indicators such as power indication, alarm indication,
operation instruction and power frequency indication on the
inverter cabinet panel, and realize the input voltage, output
current, output frequency and various work of the inverter State
monitoring.
Standby frequency switching Users can choose frequency panel which
have the standby power frequency switching, when the inverter
fails, the motor through the automatic control circuit to switch to
power frequency power (this method can choose manual / automatic,
if frequency starting device greater than 15KW, use soft starter)
A variety of control functions can be set according to system
conditions on the inverter cabinet panel, through setting a variety
of control buttons and indicators such as forward, reverse, motor
speed, motor deceleration, jog forward, jog reverse, manual /
automatic, Emergency stop, frequency / frequency, PLC control,
touch screen and so on
Installation of external equipment according to the needs of the
operating conditions can be installed in the inverter cabinet,
including AC input reactor, the output reactor, DC reactor and EMI
filter, braking unit, braking resistor, contactors, intermediate
relays, thermal relay, programmable Controller (PLC), man-machine
interface (HMI), watt-hour meter, cooling fan etc.
Safety protection Install the VFD in the frequency control panel, can reduce
environmental pollution, reduce the risk of electric shock, will
have better protective effect.
tc.
Neat appearance to install the VFD in the frequency control panel, and other
low-voltage distribution cabinet with the same size, the same
color, to maintain power distribution facilities and control
equipment coordination, neat, beautiful.
Using condition
Power-supply source: commercial power, self-connected power source,
generator unit, 3PH AC 380V , (-10%,+15%),50HZ
Suitable motor: three-phase asynchronous motor, frequency motor
Start frequency: can start frequently
Protection class: IP41 or IP20
environment condition
Altitude ≤ 2km (used and downgraded if altitude beyond of 2km),
Environment: -20℃~ +40℃
Relative humidity: ≤90%, no condensation
Vibration: ≤0.5G
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white'> CHZIRI frequency conversion speed control panel
Characteristics Analysis
Inverter control motor Compared with the traditional control of the
motor, energy conservation is the most practical significance,
according to the demand for electrical equipment to supply the
operating conditions of the economy is running, you can achieve
energy-saving effect.
Lower operating costs:
The operating cost of a conventional motor consists of three
components: initial purchase cost, maintenance cost, and energy
cost. Energy costs account for about 77% of the motor's operating
costs. Through energy costs can be reduced by 44.3%, coupled with
the frequency of the impact of the device after the start to reduce
maintenance and repair volume also decreased, so the operating
costs will be greatly reduced.
extend motor’s life:
Starting from 0HZ, the start-up time can be adjusted to reduce the
impact on the electrical components and mechanical parts of the
motor at start-up, thus enhancing the reliability of the system and
prolonging the service life of the motor. In addition, the
frequency conversion control can reduce the unit start when the
current fluctuation, this fluctuation current will affect the power
grid and other equipment, the inverter can effectively reduce the
peak starting current to a minimum.
reduce motor’s noise
According to the requirements of the motor operating conditions,
the installation of frequency control, the motor speed
significantly slowed down, so effectively reduce the motor running
at the end of the noise.
uation, this fluctuation current will affect the power grid and
other equipment, the inverter can effectively reduce the peak
starting current to a minimum.
Applicable Industry
The frequency converter control panel (frequency changer electric
control panel / electrical control panel) may widely apply in
metallurgy, chemical industry, petroleum, water supply, mine,
building material, electrical machinery profession pumps and so on,
air compressor, rolling mill, transport aircraft and other
machinery and equipments.
Soft starter panel Application load type
This soft starter cabinet can meet the requirement of most heavy
load. The table below is just for reference only .
| Varieties of Application Loads | Start Ramp Time (S) | Stop Ramp Time (S) | Inception Voltage (%) | Voltage Start (Maximum Current-limiting Value) | Current-limiting Start |
| Centrifugal Pump | 16 | 20 | 40 | 4 | 2.5 |
| Ball Grinder | 20 | 6 | 60 | 4 | 3.5 |
| Fan | 26 | 4 | 30 | 4 | 3.5 |
| Piston Type Compressor | 16 | 4 | 40 | 4 | 3 |
| Light Load Motor | 16 | 2 | 30 | 4 | 3 |
| Elevating Mechanism | 6 | 10 | 60 | 4 | 3.5 |
| Mixer | 16 | 2 | 50 | 4 | 3 |
| Crusher | 16 | 10 | 50 | 4 | 3.5 |
| Screw Compressor | 16 | 2 | 40 | 4 | 3 |
| Spiral Conveyor | 20 | 10 | 40 | 4 | 2 |
| Leather Belt Conveyer | 20 | 10 | 40 | 4 | 2.5 |
| Heat Pump | 16 | 20 | 40 | 4 |
Panel's color:
