Specialized VFD for crane equipment with anti-sway function
Product Features:
Other unique features of QZ9000:
● Brake failure detection
When the stop brake is valid, the encoder is used to detect whether the brake is invalid. If it fails, the vfd inverter is
automatically started to maintain torque to prevent accidents. (Valid closed loop)
● 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.
● 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.
● Overload detection function
Limit the operation of the vfd 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.
● 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)
● Rapid deceleration function
By inputting a quick stop command through the terminal, it can perform rapid deceleration near the target position.
● Rope length detection function
The height information of the hook can be seen in the cab just by the vfd 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.
● 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.
● Professional brake timing control
According to the frequency, output current and torque of the vfd 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.
● Open and Closed loop control
QZ9000 VFD 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.
Product specification:
| Model | Power | Rated output power(KW) | Rated input current(A) | Rated output current(A) | Motor Power (KW) |
| QZ9400-7R5G | 380V 3Phase | 7.5 | 20 | 17 | 7.5 |
| QZ9400-11G | 11 | 26 | 25 | 11 |
| QZ9400-15G | 15 | 35 | 32 | 15 |
| QZ9400-18.5G | 18.5 | 38 | 37 | 18.5 |
| QZ9400-22G | 22 | 46 | 45 | 22 |
| QZ9400-30G | 30 | 62 | 60 | 30 |
| QZ9400-37G | 37 | 76 | 75 | 37 |
| QZ9400-45G | 45 | 92 | 90 | 45 |
| QZ9400-55G | 55 | 113 | 110 | 55 |
| QZ9400-75G | 75 | 157 | 150 | 75 |
| QZ9400-90G | 90 | 180 | 176 | 90 |
| QZ9400-110G | 110 | 214 | 210 | 110 |
| QZ9400-132G | 132 | 256 | 253 | 132 |
| QZ9400-160G | 160 | 307 | 300 | 160 |
| QZ9400-200G | 200 | 385 | 380 | 200 |
| QZ9400-220G | 220 | 430 | 420 | 220 |
| QZ9400-250G | 250 | 475 | 470 | 250 |
| QZ9400-280G | 280 | 525 | 520 | 280 |
| QZ9400-315G | 315 | 610 | 600 | 315 |
| QZ9400-350G | 350 | 665 | 640 | 350 |
| QZ9400-400G | 400 | 700 | 690 | 400 |
| QZ9400-450G | 450 | 800 | 790 | 450 |
QZ9000 application:
1:Bridge crane 2:Overhead crane: High-level crane (also commonly referred to as "bridge crane", with slight variations depending on the specific application scenario. The former focuses more on the "high-level operation" feature)
3:Process crane: Process crane (a customized lifting equipment specifically designed for specific industrial processes, such as in the steel and chemical industries)
4:Rail-mounted gantry crane: Track-mounted portal crane (referred to as "rail-mounted portal crane", which moves along the track and is mostly used for cargo transfer in storage yards)
5:Rubber-tired gantry crane, RTG crane: Tire-type portal crane (RTG crane, with tires as the traveling device, is more flexible than track-type and is commonly found in ports and logistics storage areas)
6:Goliath crane: Giant gantry crane (The term "Goliath" is derived from "Goliath", meaning "giant". It is a large-span, high-capacity gantry crane, commonly used in heavy industries such as shipbuilding and wind power equipment hoisting)
7:Grab crane: Grab crane (equipped with a grab device, specifically used for grasping bulk materials such as coal, ores, grains, etc.)
8:Ship to shore crane (STS crane), container crane, port crane: Shore bridge crane (STS crane), container crane, port crane: These are cranes that transfer containers from ships to the shore. They are core equipment in port terminals and their main function is to facilitate the transfer of containers between ships and the shore.
9:Marine crane: Ship crane (installed on ships, used for cargo loading and unloading, equipment lifting, etc. It needs to be corrosion-resistant and able to withstand oceanic vibrations to adapt to the marine environment)
10:Mobile crane: Mobile crane (refers to lifting equipment that can be flexibly moved, covering various types such as truck cranes and crawler cranes, with wide application scenarios)
11:Ower crane: Tower crane (shortened as "tower crane", commonly seen in construction sites, capable of lifting materials at high altitudes and with large radius)
Company Profile:
Wuhu ZONCN Automation Equipment Co., Ltd. is affiliated with Shanghai Zhongchen Electronic Technology Co., Ltd. It is its factory located in Wuhu, Anhui Province and is responsible for overseas trade business.Shanghai Zhongchen Electronic Technology Co., Ltd. was established in 2006 and is located inShanghai. Listed on the Shanghai Stock Exchange in August 2023 (stock code: 603275). Ourcompany is a high-tech enterprise specializing in the research, production, sales, and service ofVFD and other industrial automation products.Our factory floor area is about 170,000m'. More than800 employees include more than 150 professional technical engineers. We have passed 1S09001quality control system and all the products have CE certification.
Our main products include inverter andservo system. Our company has a widerange of products, with medium and lowvoltage inverters divided into two categories,general-purpose products and industry-specific products, covering voltage levelsfrom AC220V to 1140V, power rangefrom 0.4kW-1,200kW, and widely used inindustries such as air compressors, plasticmachinery, construction machinery, watersupply equipment, metallurgical equipmenttextile machinery, machine tools, chemicamachinery, mining machinery, printingand packaging,etc.The servo system isdivided into two categories: synchronousservo driver and asynchronous servo drivercovers voltage range from AC220V to480V, power range from 0.4 kW to 132 kW,suitable for various occasions requiring high-performance precision control.
Our main products include inverter and servo system.Our company has a wide range of products, with medium and low voltage inverters divided into two categories:general-purpose products and industry-specific products, covering voltage levels from AC 220V to 1140V, power range from 0.4kW-1200kW, and widely used in industries such as air compressors, plastic machinery, construction machinery, water supply equipment, metallurgical equipment, textile machinery, machine tools, chemical machinery, mining machinery, printing and packaging, etc. The servo system isdivided into two categories: synchronous servo driver and asynchronous servo driver covers voltage range from AC220V to 480V, power range from 0.4 kW to 132 kW suitable for various occasions requiring high-performance precision control. ZONCN has more than 80 dealers in china and abroad. Now our products are exported to more than 50 countries in Asia, Europe.Africa and America. ZONCN will always dedicate in the field of electrical drive and warmly welcome you to be our partner.
FAQ:
Q1:What is your MOQ? A: 1 pc
Q2:What's your terms of payment?
A:T/T 100% before delivery.
Q3:What's your delivery time?
A:Generally within ten days after receiving full payment.
Q4:How can l get OEM/ODM order?
A:If your order quantity meets certain requirements, we are happy to customize it for you. We have cooperation with more than forty manufacturers.
