Medium Voltage Drive VFD 2250KW 6.6KV HIVERT-Y 6.6/243

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Medium Voltage Drive VFD  2250KW 6.6KV HIVERT-Y 6.6/243

Torque limiting function

The torque limit function is used to accurately control and limit the torque in order to prevent overload of the motor,
electricity supply system or VFD itself. This prevents damage to the motor when stationary, for example, with a
locked rotor, when starting with high inertia or high initial friction load.


The torque limit function can also be used to prevent or limit the return of power from the motor to the VFD in the event
of an over-hauling load causing the motor speed to exceed the commanded speed.


Spinning start (Flying start)

The RMVC 5100 can automatically identify that the motor is already spinning at the moment of the start request and
institute a controlled sequence to enable the drive to pick up the spinning motor without the need to stop the motor or
the risk of a system trip. The sequence requires an initial estimate of the spinning motor speed by scanning the
motor voltage while changing the output frequency. Steps are taken to reduce the time needed to estimate the motor


Examples of when a Flying Start would be used

∙ The mechanical load causes the motor to be spinning, even though no electric power is applied to the motor.
∙ Manual reset after trip
∙ Automatic restart after a shutdown.
∙ Restart after Low-Voltage Ride-Through (temporary loss of supply power).
∙ Restart after an automatic Power Cell Bypass.

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Q:Inverter signal line analog 4-20mA connection positive and negative can be reversed?
Inverter signal line analog 4-20mA connection when the positive and negative is not reversed. Inverter input analog signal is generally 4-20mA, 0-20mA, 0-5V, 0-10V and so on.
Q:The laptop's power adapter can be used on a desktop computer
Desktop machine is called DIY it ~ is the assembly machine inside the motherboard graphics card hard drive memory What is the need for power supply every power to have a different interface
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:Will the laptop's power adapter is not the original good?
As long as the power and current are equal or slightly larger than the original adapter, but the voltage must be equal to the original adapter on the line.
Q:East yuan 7200GS inverter start 11KW 4-pole motor and 2-pole motor need to modify what parameters?
11KW 4-pole motor and 2-pole motor is the difference between the motor coil winding is not the same, the appearance of the 2-pole motor to be slightly larger, the speed of 4 pole speed is 1450 r / min, 2 pole is 970 r / min
Q:How to view the parameters of the notebook power adapter on your computer
The correct way to use a laptop power adapter 1. Try to avoid use in outdoor or harsh environments to prevent the adapter from being exposed or damp. 2. When you are not using the adapter, please unplug the power plug. Because, for a long time the power will let the adapter has been in working condition, will affect the end of life. 3. Although the adapter is a broadband operating voltage, marked from 100V-240V can be, but if the voltage is extremely unstable in the case of use, the same will cause damage to the power adapter
Q:How to disassemble the notebook power adapter
HP laptop power adapter for the whole design of small sealed, you can follow the following steps to dismantle: 1, laptop power adapter for the injection molding package or with a strong adhesive glue, without any screws, so generally only with violence Cracked. However, as long as the method properly, after the dismantling of the power adapter can be restored to the original, do not carefully observe almost no traces of open.
Q:Laptop power adapter bad what is the phenomenon?
If you unplug the power adapter is good, then your adapter has a problem, you are the original adapter, I encountered the imitation of the adapter has this problem,
Q:If it is 8-pole variable frequency motor, enter the motor nameplate parameters in the inverter input for the 4 pole can?
According to the number of revolutions N = 60 * f (frequency) / p (pole pairs) can calculate the motor is a few poles. If the motor is 8 pole is not recommended in the inverter set to 4. will certainly affect the control accuracy.
Q:Motor 2 pole and 4 pole in the inverter with what set to show
The inverter has a parameter that requires you to enter the number of motor poles, see the direct input of the number of poles

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