> PASSENGER ELEVATOR > Benefits and Advantages
AC-VVVF is a commercial elevator for house
and commercial building with low and middle story.
Provides accurate control of motor speed as well as comfort
riding, prompt response time and accurate concept.
AC-VVVF has high degree of confidence and efficiency and
the range of speed is 45-105M/MIN.
PWM pattern is the heart of AC-VVVF CONTROL and control
the frequency for AC motor and alternating current at
the same time, ensuring that it can reach computerized
ideal speed curve.
PWM pattern guarantees soft driving regardless of deviation
of passenger load at the time of acceleration and deceleration.
High efficiency can be obtained through high
performance MICRO COMPUTER connected with VF INVERTER
CONTROL SYSTEM. This controls frequency modulation
from 0 to the regulated value, minimize response
power and generation of heat at the motor, resulting
in enhanced efficiency.
SWITCHING ELEMENTS, embedded in inverter, raise
the cycle of switching and lower the noise, beyond
your imagination on design.