VVVF drives are directly connected to which components?

The correct choice is that VVVF (Variable Voltage Variable Frequency) drives are directly connected to belt or cable. VVVF drives control the speed and torque of an electric motor by varying the frequency and voltage supplied to the motor. In elevator systems, these drives are particularly beneficial as they accommodate smooth acceleration and deceleration of the cab, thus enhancing ride comfort and efficiency.

Belt or cable connections are commonly seen in elevators as they transmit the motor's rotational power to the cab, allowing for precise control of movement. This connection ensures that the drive system can adjust the speed according to the load and operational requirements, which is essential in maintaining a safe and efficient elevator operation.

In contrast, while gear or pulley systems, motor or generator configurations, and chain or shaft connections might be part of the overall elevator assembly, they do not define the direct connection aspect of VVVF drives, which primarily interfaces with belt or cable systems for operational performance.