Frequency Inverter Single-phase 200V class 315KW

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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
	Rated voltage and frequency	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
	Speed setting resolution	Analog setting: 0.05/50Hz (10bit)
	Speed control precision	V/f control:±2%
	Speed control precision	vector control without PG (open loop control): ±0.2%
	Speed control range	V/f control 1:40
	Speed control range	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 frequency、current output、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
Structure	Cooling Method	Forced Air cooling
Installation method		Wall mounted

Q:Variable frequency pump pressure in the very low flow instability, why?: From the performance curve, the flow becomes smaller, the combination of pressure and frequency adjustment flow will only stabilize the flow at a small value, the pressure will be reduced, because the work point will move down.

Q:The laptop power adapter is burned: You this situation or the first adapter to try, it is likely that the adapter power shortage. If you change the adapter or so, then your problem is big, there may be your laptop to protect the isolation circuit and the charging circuit is a problem, in the insurance repair is free, if the insurance, and to be afraid of a little fear Small expensive, the adapter to buy a cottage on the line, as long as tens of dollars.

Q:What are the differences and links between the soft starters and the frequency converters, and their respective principles and uses?: Soft starters and frequency converters are two completely different uses of the product. The frequency converter is used for the need for speed control where the output not only changes the voltage but also changes the frequency; the soft starter is actually a voltage regulator for the motor to start when the output only changes the voltage and does not change the frequency. The frequency converter has all the soft starter functions, but its price is much more expensive than the soft starter, the structure is much more complex. Soft starter (soft starter) is a set of motor soft start, soft stop, light load energy saving and a variety of protection functions in one of the new motor control device, known as the Soft Starter abroad. The softener uses a three-phase anti-parallel thyristor as a voltage regulator, which connects it between the power supply and the motor stator. This circuit, such as three-phase full-bridge rectifier circuit. When using the soft starter to start the motor, the output voltage of the thyristor gradually increases, the motor gradually accelerates until the thyristor is fully conductive, the motor works at the mechanical characteristics of the rated voltage, smooth start, reduce the starting current and avoid starting the overcurrent trip. When the motor reaches the rated speed, the start-up process ends, the soft starter automatically uses the bypass contactor to replace the completed thyristor, providing the rated voltage for the normal operation of the motor to reduce the heat loss of the thyristor and prolong the service life of the soft starter , To improve its efficiency, but also to avoid the harmonic pollution to the grid. Soft starter also provides soft stop function, soft stop and soft start the process of reverse, the voltage gradually reduced, the number of revolutions gradually reduced to zero, to avoid free-wheeling caused by the impact of torque. How the frequency converter works

Q:What is the meaning of the bipolar polarity in the inverter ah There is a +10V signal input is a -10V What is the meaning of ah?: Bipolar input is positive and negative. Bipolar input is generally used to directly through the external reference or potentiometer to achieve the motor forward and reverse switching, without having to switch all the way to switch the signal (switch).

Q:A water supply project, how to choose electrodes and frequency converters, such as giving a 7-storey water supply: 4. Set by pressure (0.3-0.4Mpa). Control the inverter can be.

Q:Can different brands of laptop power adapters be generic?: Power adapter can not use, the key to see two factors. First, the interface must first be the same interface or can not use. Second, the output current, the output current must be strictly consistent, otherwise it would be very dangerous, the laptop overload of the current is very fragile. The final output voltage I personally think can have a difference of type 5V. Because the battery on the voltage requirements up and down can have 5V floating. I have also used a high 5V adapter, has been no problem, but this is just my personal view. Strictly the same as the best. Oh, for reference only! Since you can plug in the normal use, indicating that the interface is consistent, and the output voltage and current are the same. Then I can responsibly tell you, rest assured to use it, there will be no problem.

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:Why the notebook power adapter can not be universal: Third, the current is different Different brands of laptop power adapter current is not the same, for example: under normal circumstances IBM is 4.5A, Dell is 3.34A, Hp is 2.7A, Sony is 4.1A and so on. In fact, the same brand of laptop power adapter voltage and current are not the same. So, even if the same brand of notebook computers channeling with power adapter to confirm the voltage and current specifications.

Q:With the inverter control fan 37Kw4 pole with what model inverter: If the speed is not very high requirements, all the general-purpose inverter can be.

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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