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St310 Series 11KW 380V Variable Inverter 50Hz 60Hz AC Three Phase VFD VSD Gray
Introduction of Frequency converter(VFD)
Variable-frequency Drive (VFD) is a power control device that uses frequency conversion technology and microelectronics technology to control ac motors by changing the frequency of the motor's working power supply. The inverter is mainly composed of a rectifier (AC to DC), filter, inverter (DC to AC), brake unit, drive unit, a detection unit, and micro-processing unit. Inverter by internal IGBT off to adjust the voltage and frequency of the output power supply, according to the actual needs of the motor to provide the required power supply voltage, so as to achieve the purpose of energy-saving, speed regulation, in addition, the inverter has a lot of protection functions, such as over-current, over-voltage, overload protection and so on.
Product features of frequency inverter
Structural design Advantages:
1. Independent heat dissipation air duct, on the one hand, can
effectively prevent external dust, oil pollution, and other
pollution into the internal, causing PCB, components and other
corrosion short circuit faults, on the other hand, can play a very
good heat dissipation effect, reduce the damage of corrosive gas to
products, improve product stability.
2. Using 4-layer precision PCB board and a new generation of IGBT
module technology, and mostly using IC integrated electronics.
3. The volume of the new generation inverter is smaller, and the
weight is lighter, saving installation space, saving transportation
costs.
Software Design Advantages:
1. The latest HIGH-SPEED TI DSP chip is selected, and the control
software with independent intellectual property rights is used to
maximize the software and hardware characteristics, which makes the
motor run statically in various application environments.
2. New wave-by-wave current limiting control algorithm, current and
voltage control stability, to ensure the frequency converter in the
limit condition of failure-free operation.
3. Brand new current, voltage, control algorithm, plus unique
excitation current control, to ensure the motor fault free fast
start and stop.
4. New motor model, low-frequency motor running speed is stable,
torque is large, current control is accurate, no-fault stop, high
frequency running motor speed is stable, the current is small.
5. New software speed tracking algorithm, tracking current, voltage
impact is small, accurate tracking speed.
6. Carrier frequency can be automatically adjusted with frequency
conversion temperature and operating frequency to ensure reliable
operation under the condition of low-temperature rise of frequency
conversion.
7. The highest frequency of the standard machine is 3000HZ, which
can meet the requirements of multi-purpose processing, Can realize
a variety of frequency switching use.
8. Super overload capacity, 150% 60S,180% 10S,200% 0.5S
9. Default one set of motor parameters, can be customized multiple
sets of motor parameters, can drive different types of motor.
10. Four times of fault parameter record, record the detailed state
of the inverter when the fault occurs in detail, and record the
maximum current, maximum voltage, and maximum temperature during
the operation of the inverter, which is convenient for analysis and
treatment after the fault occurs.
11. Complete machine protection function(including Overcurrent and
overvoltage protection, short circuit protection to the ground is
over, IGBT pass-through protection, Protection against abnormal
current detection, Relay pull in abnormal protection functions).
12. Perfect power protection function(Control board terminal 24V,
10V, analog output AO1/AO2 power short circuit and overload
protection)
13. Wide voltage design: meet international standards, including
Europe, North America, India, and other 380-480V three-phase grid
requirements.
Hardware Design Advantages:
1. Panel knob adopts encoder knob, high-speed precision, stable
speed, long service life.
2. The operation panel adopts the latest design idea, which makes
disassembly and installation more convenient and reliable.
3. Standard network ports are used to connect the control board and
operation panel. Signal transmission speed is high and the distance
is long.
4. One communication port 485, supports Modbus protocol, RTU mode
5. The heat dissipation fan adopts temperature control to ensure
effective heat dissipation and prolong the fan life.
6. The fan partition is removable and can be pulled out directly.
Easy for users to carry out daily maintenance. Thus extending the
service life of the machine.
7. Choose the cooling fan with long life and large air volume,
effectively reduce the temperature rise of frequency converter, and
ensure the reliable and stable operation of products.
8. The wiring terminal is designed to be a pull-out partition,
which is convenient to install when wiring. After connecting the
line, insert the partition board, and evenly divide the line class.
9. The bottom of the low-power machine is equipped with the
installation size drawing, and the whole series is equipped with
the mounting hole position of 1/1 proportion paper shell template,
so as to achieve more convenient and fast installation of electric
cabinet.
Other models of frequency converter
Items Number | Voltage(V) | Power(KW) | Input current(A) | Output Current(A) | Braking resistor Power(KW) | Braking resistor Resistance(Ω) | Remark |
ST310-2T0.75GB | 3 Phase 220V±10% | 0.75 | 5.0 | 3.8 | 150 | 250( ≧100) | BUILT-IN |
ST310-2T1.5GB | 1.5 | 6.0 | 5.5 | 300 | 200(≧100) | ||
ST310-2T2.2GB | 2.2 | 10.5 | 9.0 | 800 | 100(≧75) | ||
ST310-2T3.7GB | 3.7 | 10.5 | 9.0 | 800 | 100(≧75) | ||
ST310-2T5.5GB | 5.5 | 20.5 | 17 | 1500 | 50(≧ 75) | ||
ST310-2T7.5GB | 8 | 35 | 30 | 2000 | 40( ≧25) | ||
ST310-2T11GB | 11 | 50 | 45 | 5000 | 30(≧16) | ||
ST310-2T15G | 15 | 65 | 60 | 6000 | 20(≧16} | OPTIONAL | |
ST310-2T18.5G | 18.5 | 80 | 75 | 9000 | 16(≧10) | ||
ST310-2T22G | 22 | 95 | 91 | 9000 | 13(≧10) | ||
ST310-2T30G | 30 | 118 | 112 | 11KW | 10(≧8) | ||
ST310-2T37G | 37 | 80 | 75 | 9000 | 16(≧10) | ||
ST310-2T45G | 45 | 95 | 91 | 9000 | 13(≧10) | ||
ST310-2T55G | 55 | 192* | 210 | 22KW | 5(≧3.3) |
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