Special Purpose Applications

Hoist crane

Solution: most of hoist cranes use conical rotor motors. CHV190 frequency inverter provides an open-loop vector control way to ensure hoisting mechanism does not slip at low speed and full load, big and small cart mechanisms start and brake smoothly. For electric brake, it is recommended that commonly used resistor energy consumption braking way be used. Advantage:

General bridge and gantry crane

For general bridge and gantry cranes that adopt variable frequency speed control, it is recommended that special-purpose variable frequency motor be used. CHV190 frequency inverter provides close-loop vector control way for hoisting mechanism, open-loop vector control way for big and small cart mechanisms, which ensure hoisting mechanism does not slip at low speed and full load, big and small carts mechanisms start and brake smoothly.

Tower crane

Solution: When variable frequency speed adopted in Tower crane, it is recommended that a special-purpose motor for variable frequency be used. CHV190 frequency inverter provides close-loop vector control way for hoisting mechanism, open-loop vector control way for luffing and slewing mechanisms, which ensure hoisting mechanism does not slip at low speed and full load, luffing and slewing mechanisms start and brake smoothly.

Lifter

Solution: When variable frequency speed control is adopted for the lifter, it is recommended that a special-purpose motor for variable frequency be used. CHV190 frequency inverter provides close-loop vector control way for hoisting mechanism, which ensures the hoisting mechanism does not slip at low speed and full load, and it starts and brakes smoothly. For electric brake, it is recommended that commonly used resistor energy consumption brake way be used.

Gantry crane

Solution: When variable frequency speed control is adopted for gantry crane, it is recommended that special-purpose motor for variable frequency be used.

Rubber-tired gantry crane (RTG)

Solution: Mainstream variable frequency drive solution for rubber-tired gantry crane (RTG), main equipment in container pier field bridge of the port is common DC bus drive way. CHV190 provides this mainstream RTG drive solution, namely apart from being as a motor of drive and hoisting mechanisms, the hoisting inverter provides DC power supply for DC bus of inverters of big and small carts. This common DC bus drive way has the following features: