• July 26. 2021

FV20−M serial inverter is equipped with complete protection functions to provide efficient protection while utilizing its performance sufficiently. Some failure instructions may be displayed during operation. Compare the instructions with the following table and analyze,assess the causes and solve failures. Failure No. Failure code Failure description Potential causes Solutions Number 01 E. SC Out...

• July 22. 2021

Fault number Fault Code Fault Description Possible Causes Countermeasure 1 E.oc1 Over current protection when acceleration operation Low grid voltage Check input power supply Startup during motor free rotation Restart after the motor standstill Rotating inertial of load is too large or shock load is too heavy Increase the acceleration time and reduce the sudden change of load Improper setting moto...

• July 20. 2021

The following fault code will be displayed on the keypad, the fault contact output operates too. Even if a fault is the same, they are displayed differently on LCD keypad and LED keypad. These are all explained in the below table. For details, refer to the following table to identify and correct the cause of the fault. LCD keypad LED keypad F0−15 value Fault Name Possible causes Corrective actions...

• June 10. 2021

As we know, VFD drive play a major and very important role in nowadays. It can help the world life more comfortable and sustainable. Variable Frequency Drive for short can called VFD, other names can also called AC Drive, Frequency Inverter, Frequency Converter, adjustable speed drive, adjustable frequency drive, variable speed drive and microdrive. A VFD drive is a type of motor controller that d...

• May 22. 2021

Recently, the first 1000-ton battery electric cargo ship "Zhongtian Dianyun 001" in the Yangtze River Basin was successfully tested in Changzhou, Jiangsu, which marked the official era of clean energy in the Yangtze River freight ships, thereby reducing the emission of pollutants at the source. The battery electrification of ships faces the challenges of complex environments, and has many strict r...

• June 04. 2021

V&T’s 1000pcs electric vehicle motor controller, help save energy and reduce emissions, let “Blue Shenzhen” put into practice. After fully electrification for both bus and taxi in Shenzhen, the electrification’s target point to dump truck. Recently, 1000 battery electric environmental protect dump trucks equipped with V&T’s electric vehicle motor controller one after another for using. It ...

• June 16. 2021

AC drives or Variable frequency drives control speed, torque, acceleration, deceleration, and rotation direction of AC motors. AC drives save energy by tailoring the power delivered to meet the actual load requirements. AC drives replace mechanical gearboxes, belts, hydraulic couplings, DC drives, servo-drives, or eddy current drives in many situations. AC drives provide an accurate and wide range...

• June 21. 2021

A Variable Frequency Drive (VFD) is a type of motor controller that drives an electric motor by varying the frequency and voltage supplied to the electric motor. Other names for a VFD are variable speed drive, adjustable speed drive, adjustable frequency drive, AC drive, microdrive, and inverter. Frequency (or hertz) is directly related to the motor’s speed (RPMs). In other words, the faster the f...

• June 22. 2021

There are 5 important AC drive VFD limitations that should be considered when selecting the proper VFD for motor speed control applications. A VFD is an electronic circuit that controls the speed of an electric motor by adjusting both the voltage and the frequency applied to the motor. Prior to VFDs, motor speed was controlled through inefficient voltage regulators or mechanical means – ...

• June 25. 2021

What is an electric drive? An electric drive is used to control the motion and speed of motors, robots and/or other electrical devices. Usually, a drive will have one or several electric motors. In the modern day, any control offered by these devices is often aided by software, which can help control accuracy. There are two main types of electric drives: AC drives and DC drives. What is an AC driv...