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Products Variable Frequency Drives Low Voltage Drive Application Specific Variable Frequency Drives Crane & Hoist
CV20 Series AC Drives for industrial crane and hoist
CV20 Series AC Drives for industrial crane and hoist
CV20
CV20 1
CV20 Series AC Drives for industrial crane and hoist

CV20 series Variable Speed Drive offers more efficient and safe to industrial crane equiptments. The CV20 series variable frequency drives (VFD) provide the intelligence, performance, flexibility and safety for your crane applications. Wherever the cranes are installed, our wideworld service and support is always near.
Series CV20 AC drives with built-in crane control software, brake unit and range of safety functions help various types of cranes move efficiently. Our CV20 drives are an excellent choice for standalone cranes.

Input voltage,V
380V - 480V / 3 phase
Power range, kW
3.7 - 450

Features

CV20 series inverter special for hoisting is tailor-made for various severe application conditions in the hoisting industry, and it can easily solve technical and performance problems. CV20 adopts vector frequency conversion control technology, while maintaining excellent performance and function, from the perspective of lifting application, it is superior in terms of ease of use, maintainability, environmental protection, installation space and design standards to similar products. With high-performance current vector technology, it can easily drive asynchronous induction motors to meet the working requirements in various environments. Series CV20 Drive's can be solve applicaitons for small to complex crane. Safety. Performance. Efficiency. Speed.

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Specially designed to control asynchronous motors for crane operations, such as hoisting, travel, and rotation

High performance AC crane drive, open & closed loop, three phase
Speed control accuracy: ±0.5% (SVC), ±0.02% (FVC)
Overload: works stably under 110%; 150% for 60 seconds; 180% for 3 seconds
Built-in braking unit in all models
Leading flux closed-loop and open-loop low-frequency vector control algorithms
Reliable time sequence logic of brake control, with braking failure detection & protection
Light hook fast speed operation; anti-sway

The specific functions are as follows:

Professional brake timing control

According to the frequency, output current and torque of the inverter, the brake release command will be output. When starting and stopping, keep the necessary torque to stabilize the cargo, and open the holding brake, and start and stop smoothly without slipping the hook to prevent the cargo from sliding down.

Stroke limit control function

By the limit sensor input can prevent the hook from overtraveling and excessive hoisting.
Light load speed increase adaptiveVin_ler i_in sürücü (h_z kontrol cihaz_) -1Through the light load speed-increasing function, the best running speed matching the load can be achieved. When the load is light, it allows automatic speed increase and improves efficiency, no auxiliary hook design is required, which can shorten the operating period of the crane with a long head.

Intelligent anti-sway function

With built-in anti-sway function, so can suppress the shaking of the goods during translation. Since the load does not sway, it can be laid down faster, which is beneficial to shorten the operating cycle. CV20 drives with integrated sensorless control functionality enhance productivity and safety by avoiding sway in cranes.

Open and Closed loop control

CV20 drives help to ensure excellent open-loop crane performance without encoders. Travel and hoist commissioning is simple. Droop control equalizes torque between the two motors operating in parallel. Closed loop control offers even better crane dynamics. We offer flexible encoder interfaces for broad component choice.


 Synchronous control function

High-precision control can be carried out according to the operating conditions of the machine, to achieve stable walking and operation. It can also equalize the load of each inverter, and can also eliminate the position deviation when two hoists are hoisted at the same time through closed-loop synchronous control.

 Parameter macro function

The function to select the purpose according to the crane action. Just select hoist, long travel, trolley and other uses, you can automatically set the necessary and unnecessary functions to be valid or invalid. The best parameters can be set simply for different purposes.

 Rope length detection function

The height information of the hook can be seen in the cab just by the inverter. When the wire rope reaches the set length, the collision with the lifting drum can be avoided by reducing the ascent and descent speed.

 Rapid deceleration function

By inputting a quick stop command through the terminal, it can perform rapid deceleration near the target position.

 Load holding function

When stopped, the load can be kept at the current position through zero-speed control. Close the brake when it is stable. (Valid closed loop)

 Overload detection function

Limit the operation of the inverter when the load exceeds the preset upper limit. Alarm display and lifting device stop can be set to prevent danger caused by overload operation.

 Maintenance reminder

Count the number of brake commands. It can be used as reference data for brake maintenance such as system inspection and parts replacement.

 Over torque detection function

The torque rise value is detected when the cargo accidentally contacts other objects. At this time, the motor can be automatically stopped to prevent accidents and improve safety.

 Self-tuning motor parameters

It can accurately identify asynchronous induction motors and achieve high-performance vector control; it can achieve accurate setting of motor parameters of long-distance power cables under load, and can automatically discriminate encoder signal directions under encoder conditions, simplifying the debugging process.

 Brake failure detection

When the stop brake is valid, the encoder is used to detect whether the brake is invalid. If it fails, the inverter is automatically started to maintain torque to prevent accidents. (Valid closed loop)

Anti-sway-W-text


Application

- Bridge crane
- Overhead crane
- Process crane
- Rail-mounted gantry crane
- Rubber tired gantry crane, RTG crane
- Goliath crane
- Grab crane- Ship to shore crane (STS crane), container crane, port crane
- Marine crane
- Mobile crane
- Mobile harbor cane
- Tower crane
- Construction hoist