AC80S Construction Hoist Frequency Inverter
By the use of advanced speed control technology, the AC80S construction hoist frequency inverter facilitates the technological innovation of the hoist electric drive system. The drive unit and brake unit are integrated, so there is no need for external brake unit. The dedicated logic control brake function improves the safety and reliability the hoist.
Also, the inverter drive saves a lot of energy for customers and society. So, this frequency inverter has great application value in the construction industry.
Voltage Rating of Hoist Frequency Inverter
380/460/660V (three-phase power), 15kw-450kw
Features of Hoist Frequency Inverter
1. Excellent Performance in Motor Speed Control
a. decoupled AC motor achieves excellent vector control performance.
b. vector torque control without PG, the control accuracy can be up to 5%.
c. stable four-quadrant motor operation, quick response to torque, current, speed and DC bus voltage.
2. Stable Running with Low Frequency and High Torque
a. no overshoot in upstream and no weightlessness in instant downstream.
b. 0Hz moment holding function: upstream-downstream switch can step over 0Hz speed independently from braking action.
c. 0.5H/150% steady output of rated torque, ensure that the hoist runs smoothly at start-up and up-and-down movement.
3. Hoist-Dedicated Brake and S-Curve Acceleration and Deceleration Process
