Elevator inverter plays what role in the elevator

If the given acceleration time is too short, the elevator inverter output frequency changes much more than speed (electrical angular frequency) change, the drive will overcurrent flows due to trip, running stop, which is called stall. In order to prevent stalling of the motor continues to run, it is necessary for detection of the current size of the frequency control. When the acceleration current is too large appropriate to slow down the acceleration rate. Deceleration as well. Combine the two is the stall function.
Acceleration and deceleration can be respectively given model, for quick acceleration, slow deceleration occasions, or for a small machine requires strict tact time given occasion is appropriate, but for the fan drive and other occasions, acceleration and deceleration time longer acceleration time and deceleration time can be given together.
If you lower the motor during operation command frequency, the motor becomes non-state synchronous generator running, while working as a stopper, which is called regenerative (electric) braking.
Regenerative energy from the motor out of the piling in the elevator inverter filter capacitor, the capacitance of the capacitor and the voltage relationship between the general frequency of the rated torque of the regenerative braking force of 10% -20%. If using the optional parts brake unit, can reach 50% -100%.
Automatic control system signal can be set freely by the elevator inverter flexible frequency change command and control process indicators, such as in the tobacco industry, sugar, spices process, known by the belt drive traffic signals to control the frequency of the rotational speed of the pump with the flow signal changes automatically adjust feeding amount evenly add flavor, sugar. Production line can also use start-stop signal through the positive and negative terminals of the elevator inverter control starting and stopping and positive, reverse and become a part of automatic assembly line. In addition, in the assembly line, the current device is faulty rear side equipment should be automatically shut down. elevator inverter emergency stop client can achieve this functionality. In SANKEN, MF, FUT and FVT series elevator inverter can be pre-set three or four or even up to seven frequencies, some devices can be set accordingly automated production processes. Set frequency and time, the drive motor can sequentially at different times with different speed operation, to form an automated production process.