Q:How does the spindle drive system of the inverter realize the positive and negative control of the main pole?

The general inverter has an external terminal control and communication control two modes optional, select one of them can be completed ah

Q:The laptop power adapter is burned

Upstairs that are almost, I said two points: First, the landlord said the problem I really met, you can still use the power adapter, nothing, little effect, nor is the machine's problem, but still suggest that you have time to hold your machine to the computer shop test under. Second, the battery you do not use the first, directly with the power adapter, as you said, so as not to two conflicts, your battery broke. On the power adapter, if you want to buy, you directly search ADP-90SB BB, for the best is the best.

Q:Old printing machine transformation, 37KW6 polar frequency motor with brake, inverter 55KW, now found running,

May be mechanical part of the card, try idling motor.

Q:Does the inverter set the number of poles to match the number of poles of the motor?

The inverter will adjust the voltage and frequency of the output power by the breaking of the internal IGBT, according to the actual needs of the motor to provide the required power supply voltage, and then achieve the purpose of energy saving, speed control, in addition, the inverter has a lot of protection , Such as overcurrent, overvoltage, overload protection and so on. With the continuous improvement of industrial automation, the inverter has also been a very wide range of applications.

Q:Is the laptop power adapter long-haul?

This is not good, If you need to shut down, then it is recommended that the power adapter plug from the board to pull down. Because if only pull the adapter and the computer plug so that the adapter will still have the internal current through, hear the small sound is actually the sound of the current. So it is recommended that the power adapter from the outlet on the unplugged, and the computer connected to the one do not have to pull, so that will not cause the power adapter power and convenient computer to open.

Q:Taian inverter 3.7KW 380V with 4.0KW 2 pole motor 18000 to 300HZ can it?

Second, is the higher speed, parking, inertia, the motor into a generator, to the module reverse power supply, resulting in the module burned, this time, should consider adding braking resistor and braking unit.

Q:How many types of CVT are classified?

CVT (Continuously Variable Transmission) technology that is continuously variable technology, which uses the belt and the working diameter of the main and driven wheel to match the power to transfer, you can achieve a continuous change in transmission ratio, resulting in transmission and engine conditions of the most Good match

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:Laptop power supply 20V 3.5A can use 20V 4.5A power adapter Mody, what impact?

The current will be great ... ... a long time on the bad

Q:Pump frequency converter instantaneous restart and restart the problem

Inverter speed: Based on the advantages of speed control, energy saving and reliable operation, the frequency converter has gradually replaced the traditional variable speed, electromagnetic speed and voltage regulation. In the introduction of PWM flux vector control of the inverter a few years later, the end of 1998 and the emergence of DTC control technology inverter. ABB's ACS600 series is the first generation of DTC technology using the inverter, it can open the ring speed and torque for accurate control, and dynamic and static indicators have been better than PWM closed-loop control indicators. Direct torque control to measure motor current and DC voltage as input to the adaptive motor model. The model produces a set of precise torque and flux actual values ??every 25μs. The torque comparator and flux comparator compare the actual values ??of torque and flux with the reference values ??for torque and flux to Determine the optimal switch position. It can be seen that it is through the torque and magnetic flux measurement, instantly adjust the inverter circuit switching state, and then adjust the motor torque and magnetic flux, in order to achieve the purpose of precise control.