Frequency Inverter Single-phase 200V class 400KW

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Technical specifications

Table 2.3: Technical Parameters of QD200 Series Frequency Inverters

ITEM

SPECIFICATIONS

Main

Input

Rated voltage and frequency

Single-phase 200V class:  200V-240V,50Hz/60Hz

3-phase 400V class:  380V-480V , 50Hz/60Hz

Allowable value of change

Voltage: 380V-15% ~ 480V+10%;  Frequency: ±15%

Main output

Output voltage

Maximum output voltage equals to input voltage

Output frequency

0.5 Hz to 400 Hz

Overload capacity

150% of rated output current for 60s, 200% of rated output current for 2s

Control performance

Modulation mode

3-phase PWM, 2-phase PWM

Control mode

V/f control for constant torque, V/f control for quadratic load, vector control without PG (open loop control),Energy-saving

Setting method of run command

Outer terminal, keyboard panel or serial communication

Setting method of speed command

Analog setting, keyboard, serial communication, UP/DOWN speed setting from external terminal

Speed setting resolution

Keyboard: 0.1 Hz

Analog setting: 0.05/50Hz (10bit)

Speed control precision

V/f control:±2%

vector control without PG (open loop control): ±0.2%

Speed control range

V/f control 1:40

vector control without PG (open loop control)  1:200

Acceleration and Deceleration

Time

0-3200.0s

switching frequency

1.5 kHz ~ 12 kHz, according to junction temperature automatically reduce the switching frequency

Analog input

Number

2 ways: AI1、AI2

Type

DC voltage or DC current

Maximum input range

AI1: 0 to 5VDC, 0 to 10VDC, 0/4 to 20mA DC receivable

AI2: 0 to 10VDC or PTC probe input receivable

Analog output

Number

1 way: AO1

Type

DC voltage or DC current

Maximum input range

Voltage output: 0 to 10V, Current output: 0/4 to 20mA

logic input

Number

0.75kw-11kW:LI1,LI2,LI3,LI4,AI1,AI2

15kW-500kW:LI,LI2,LI3,LI4,LI5,LI6,LI7,LI8,AI1,AI2

note:2 virtual logic input, capable of configuring AI1 and AI2 into logic input port (positive logic or negative logic)

Type

Source or Sink

Maximum input range

0-24VDC

ITEM

SPECIFICATIONS

logic output

Number

0.75kW-11kW: pulse signal output (LO-CLO)、relay output 1(T1A、T1B、T1C

15kW-500kW:pulse signal output(LO-CLO)、relay output 1、2(T1A-T1B-T1C、T2A-T2B-T2C

pulse signal output

OC,output frequencycurrentoutput、ect other function

relay output

RA-RB-RC, including a NO contact and a NC contact

Maximum switch capacity:

T1A,T1B: 3A at 250VAC, or 4A at 30VDC

T2A,T2B: 2A at 250VAC or 30VDC

Serial communication interface

RS485 interface supports Modbus protocol.

Display

4-digit LED digital display

For display of frequency setting, output frequency, fault code and parameter setting etc.

Environment

Standard

Development of VSC200 series frequency inverters follows strict international standards and relevant recommended IEC and EN standards for control devices, especially IEC/EN61800-5-1 and IEC/EN61800-3.

Altitude

Derating unnecessary when altitude is 1000m or below (Derating necessary at altitude higher than 1000m)

Ambient environment

0.75kW-11kW: Reliable operation at -10 ~ 50°C without derating. When top protective cover is taken off, the environment temperature can be as high as +50 °C. Above +50 °C, the current drops by 2.2% for each rise of 1 °C in temperature. 15kW-500kW: Reliable operation at -10 ~ 40°C without derating.

Storage: -25 ~ 70°C

Humidity

No condensed water or drip at 5 ~ 95%, In accordance with IEC60068-2-3

Impact strength

15gn for continuous 11ms, In accordance with IEC/EN60068-2-27

Maximum antipollution capacity

Class 2, in accordance with IEC/EN61800-5-1

Structure

Protection level

Top: IP41 (without removing the protective top cover). Other parts: IP20

Cooling Method

Forced Air cooling

Installation method

Wall mounted

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Q:Can the inverter be used to control the speed of the DC motor?
The inverter can be used to control the speed of the DC motor. Inverter control DC motor is to control the DC motor. Inverter is the application of frequency conversion technology and microelectronics technology to change the AC power frequency and effective voltage power control equipment. The frequency converter is usually used to control the AC motor. Inverter at work can change the AC power frequency and effective voltage, another point of view, is the inverter in the control output (injected into the controlled device) AC frequency, but also control the output of the effective power. A DC motor is a rotating electric machine that converts DC power into mechanical energy. DC motor coil in the current must be in accordance with certain changes (commutation) can be rotated, according to the principle of commutation DC motor can be divided into brush and brushless motor two categories.
Q:Inverter principle eff23
Low-voltage general-purpose inverter output voltage of 380 ~ 650V, the output power of 0.75 ~ 400kW, the operating frequency of 0 ~ 400Hz, its main circuit are used to pay straight to pay the circuit. Its control has gone through the following four generations. 1U / f = C sine pulse width modulation (SPWM) control mode is characterized by simple control circuit structure, low cost, mechanical properties of hardness is better, to meet the general requirements of the smooth transmission speed, has been in various fields in the industry Widely used. However, this control mode at low frequencies, due to the lower output voltage, the torque by the stator voltage drop is more significant, so that the maximum output torque reduction.
Q:A 4-pole AC motor into a 2-pole AC motor, the motor is controlled by the inverter, to make the maximum speed of the 2-pole motor and the original 4-pole
If it is normal V / F control, then do not need to modify too many parameters to limit the frequency limit of 50%
Q:Variable frequency pump pressure in the very low flow instability, why?
. If you want to stabilize the pressure, you must adjust the pipeline characteristic curve is the work point to enhance, so that you can both stabilize the pressure and adjust the flow.
Q:The inverter flat rate transferred to 29, on the submersible pump to burn the coil ?!
The following describes the selection of the inverter Note: The inverter selection is mainly driven by the load characteristics and the actual motor current to set, in addition, there are the following precautions. 1, the environment: for some high temperature (higher than 50 degrees), high altitude (more than 1000 meters) of the application, the inverter selection should be appropriate to leave a margin to ensure that the inverter and motor life. 2, distance: the location of the inverter installation and drive the distance between the motor more than 50 meters, the frequency changer selection should cooperate with the reactor to reduce the carrier frequency. 3, a drag: a drive drag more than one motor, if the middle of the cable is too long, universal inverter selection will enlarge the use of a file, and each machine should be installed behind the fuse.
Q:How to disassemble the notebook power adapter
4, between the shield and the circuit board is also separated by a layer of thick plastic film, and then cut off the knife after the United States, you can see the circuit board "Lushan true"
Q:How do I select a drive? Which brand is better
  8, drive explosion-proof motor, the inverter is not explosion-proof structure, the inverter should be set in a dangerous place outside.     9, the use of inverter drive gear motor, the use of the gear by the part of the lubrication part of the lubrication control. When lubricating oil is lubricated, there is no limit in the low speed range. If there is a high speed range above the rated speed, there is a risk that the lubricating oil may be used. Therefore, do not exceed the maximum speed allowable value.     10, the inverter drive winding rotor asynchronous motor, most of the use of existing motor. Winding motor and ordinary squirrel-cage motor compared to the winding motor winding impedance is small. Therefore, it is prone to overcurrent trip due to ripple current, so a frequency converter larger than the normal capacity should be selected. General winding motor for flywheel torque more occasions, in the set acceleration and deceleration time should pay more attention.
Q:What is the difference between AC and DC frequency converters?
L inverter air conditioner refrigeration system components: inverter air conditioner by the compressor, evaporator, condenser, electromagnetic four-way valve, electronic expansion valve, defrost valve, double capillary and other components (see Figure II), work, air conditioner Room needs, automatic control of the inverter output frequency higher AC, the motor speed to speed up, the compressor cooling capacity increased to achieve the purpose of rapid cooling or heating, on the contrary, when the room cooling or heating less, Compressor to normal speed or lower speed operation, therefore, inverter air conditioner has a continuous cooling capacity adjustment, making the room temperature fluctuations smaller. In the process of compressor operation, the microcomputer system controls the inverter compressor at the same time, controls the opening degree of the electronic expansion valve, maintains the proper refrigerant flow, and directly changes the flow of the refrigerant in the evaporator to change its state, the compressor The speed corresponds to the opening degree of the expansion valve, and the displacement of the compressor corresponds to the supply amount of the expansion valve, so that the degree of superheat is not so large that the capacity of the evaporator is maximized, so that the refrigeration system The most efficient control.
Q:5.5 kW 4-pole motor with the fastest speed can exceed the rated speed?
Because the frequency converter can reach 60 Hz frequency, while the three-phase power supply is the standard 50 Hz. So the inverter can make the motor speed faster than the rated 1500 rpm. The fastest up to about 1800 turn.
Q:Is the number of Amps of the notebook power adapter higher than the original number of security on the computer?
Sure answer, no! Rest assured with it, but be careful not to buy the cottage goods, this on the computer and security is not good. good luck!

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