MINI Series Frequency Inverter 220v 380v from 0.4kw to 0.75kw

MINI Series Frequency Inverter 220v 380v from 0.4kw to 0.75kw

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 1 kg

Supply Capability:: 100000 kg/month

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EMC Standard Introduction

According to the requirements of national standard GB/T12668.3, the drive need to comply with electromagnetic interference and anti-electromagnetic interference two requirements. The existing products of the company execute the latest international standards: IEC/EN61800-3：2004（Adjustable speed electric SVFl power drive systems-part 3:EMC Requirements and specific test methods) which is equivalent to the national standard GB/T12668.3.

IEC/EN61800-3 inspects the drive from EMI and anti-EMI two aspects, EMI mainly tests the drive's radiation, conducted and harmonic interferences ( Corresponding the civil drive has the requirement ). Anti-EMI mainly tests the drive's conducted immunity, radiation immunity, surge immunity, fast mutant burst immunity,ESD immunity and power low frequency end immunity (Specific test items are: 1. the experiment of input voltage dips, interruptions and changes immunity; 2, the experiment of commutation notches immunity ; 3, the experiment of harmonic input immunity ; 4, the experiment of input frequency change; 5, the experiment of input voltage unbalance; 6, the experiment of input voltage fluctuation).

According the stringent requirements of the IEC/EN61800-3 to test and according instructions shown in the 9.3 to install, Our products will have a good EMC for the general industrial environment.

Q: How do I protect the inverter when the three-phase two-pole motor is running?: Three-phase two-pole motor running inverter protection, should be based on the protection of tips, check the corresponding manual to deal with. When the inverter protection has a corresponding protection tips (such as over-current, over-voltage, speeding, stall ... ... etc.), the product manual will generally give the corresponding protection tips. According to these measures to check, deal with, you can solve the problem.

Q: How can a variable speed multi - speed three - phase asynchronous motor be controlled by a frequency converter?: Yes, but it is not necessary, if it is old motor that is another matter, tell you that you can use, but can not be in the frequency conversion process for the pole, this will cause the inverter protection or failure

Q: Inverter signal line analog 4-20mA connection positive and negative can be reversed?: Analog input signal is particularly vulnerable to external interference, so the general use of twisted shield as a signal line; and wiring as short as possible, generally not more than 20 meters; if some use conditions are vulnerable to external serious interference, the analog signal Side need to add a filter capacitor or ferrite core.

Q: Will the 75KW4 pole motor can be used to increase the speed of the inverter?: The motor speed is relative, the rated speed is the maximum speed

Q: The laptop power adapter is hot: Notebook power adapter in the power after the use of hot is a normal phenomenon, do not worry, no danger, it will not explode. The length of this time does not matter, in the use of one or two hours will become very hot, but will always keep this temperature. And the notebook's power adapter shell are high temperature, will not burn. Notebook power adapter in addition to hot, you may hear the sound, the sound is not, very small. This sound is not a big problem, it is the power adapter power after the power filter sound, so plug in the plug after. Any power adapter basically has a sound. You can listen carefully, the surrounding environment is particularly quiet when you can hear. Power adapter is a transformer, inside the transformer coil in the AC will produce Zizi sound. Some power adapter use a long time will have this sound, but no big problem, you can continue to use. As long as the sound is not high outrageous do not control. Laptop power adapter hot and sound basic are considered normal, unless the temperature is too high or even damage to the shell or the sound is very obvious, this is a problem. The general does not affect the use of the adapter bad to buy a can. Notebooks have to protect the isolation circuit, do not worry about damage to the notebook.

Q: Does the teacher know the working principle of the inverter?: The AC power rectification of the grid input is changed to direct current, and then the direct current is changed from AC by the control circuit according to the user's setting. The frequency is determined by the user. The motor is operated at this frequency to reach the change frequency. the goal of.

Q: Abb inverter s510 with water circulation pump why the motor fever. The motor is 2 pole: Running in the low frequency or other? Load it, the motor cooling mode is built-in fan or forced air cooling? Pump motor connection has not checked about, such as triangular error into a star and the like, hoping to have you help

Q: The inverter is running independently: . Main working circuit (1) Operation circuit: the external speed, torque and other instructions with the detection circuit current and voltage signal comparison operation, determine the inverter output voltage, frequency. (2) voltage and current detection circuit: isolation with the main circuit potential detection voltage, current and so on. (3) drive circuit: drive the main circuit device circuit. It is isolated from the control circuit to turn on and off the main circuit device. (4) speed detection circuit: mounted on the asynchronous motor shaft speed detector (tg, plg, etc.) signal for the speed signal into the operation loop, according to the command and operation can make the motor running at the command speed. (5) protection circuit: the detection of the main circuit voltage, current, etc., when the overload or over-voltage and other abnormalities, in order to prevent the inverter and asynchronous motor damage

Q: Is the laptop power adapter long-haul?: Oh, the power adapter is a transformer, we use the electricity is 220, after it will be converted into a suitable computer voltage, or notebook can not withstand 220V, so as long as the power inside the transformer will work, If you do not have a computer, it is best to unplug the plug on the power outlet, even if the computer has to pull out from the outlet, or will have an impact on the life of the adapter.

Q: Three-phase two-pole motor can be used to reduce the frequency of the inverter: Speed range adjustable, you can drop to any speed you want!

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