China FRECON High Performance Variable Speed Drive Variator Frequency Inverter 11kW 15HP 450KW VFD worm gearbox back drive

Customized support: yes
Model Number: FR500A-4T-4.0G/5.5PB
Type: AC to AC
Output Type: Triple
Output Current: 9.5 A
Output Frequency: 0.00~ 600.00Hz; unit: 0.01Hz
Size: 117*187*175mm
Weight: 2kg
Certificate: CE
Certificates: CE, ISO9001:2008 for ac drive
Input terminals: DI-7(HDI-1), AI-3 0~10V, or 0-20mA
Output terminals: DO-2(HDO-1), RO-2, AO-2
Applicable motors: Asynchronous motor and synchronous motor
Speed control accuracy: ±0.5% (SVC1); ±0.2%;(SVC2);
Overload capacity: 1 minute for 150% ; 10s for 180%; 1s for 200%
Starting torque: 0.5HZ:180% (SVC1); 0.25HZ:180%;(SVC2); 0HZ:200%( Vector control);
Adjusting speed range: 1:100 (V/F control); 1:200 (SVC1, SVC2);
Control techniques: V/F, SVC1, SVC2
IGBT and DSP: Infineon and Spansion for micro grid tie inverter
Packaging Details: Carton boxes for small power VFDs, wodden boxes for 55KW or above VFDs

Power inputRated input voltage (V)3-phase 380 V (-15%~+30%)
Rated input current (A)See table 2-1
Rated input frequency(Hz)50Hz/60Hz,tolerance±5%
Power outputApplicable motor(kW)See table 2-1
Rated output current(A)See table 2-1
The maximum output voltage(V)0~rated input voltage, error< JD Braided Adjustable Black Leather Rope Wax Cord Lobster Clasp String Cord Jewelry Chains for DIY Handmade Necklace Pendant ±3%
The maximum output frequency(Hz)0.00~600.00 Hz,unit0.01Hz
ControlcharacteristicsV/f patternsV/f controlSensor-less vector control 1Sensor-less vector control 2
Speed range1:50 (V/f control)1:100 (sensor-less vector control 1)1:200(sensor-less vector control 2)
Speed accuracy±0.5% (V/f control)±0.2% (sensor-less vector control 1 & 2)
Speed fluctuation±0.3% (sensor-less vector control 1 & 2)
Torque response< 10ms (sensor-less vector control 1 & 2)
Starting torque0.5Hz: 180% (V/f control, sensor-less vector control 1)0.25Hz: 180% (sensor-less vector control 2)
Basic functionsCarrier frequency0.7kHz~16kHz
Overload capabilityG Model:150% Rated Current 60s,180% Rated Current 10s,200% Rated Current 1s.P Model:120% Rated Current 60s,145% Rated Current 10s,160% Rated Current 1s.
Torque boostAutomatic torque boost;Manual torque boost 0.1%~30.0%
V/F CurveThree ways:Three ways: straight; multi-point type; N Th-type V / F curve(1.2 Th -type, 1.4 Th -type, 1.6 Th -type, 1.8 Th -type, 2Th -type)
Acceleration and deceleration CurveLine or curve acceleration and deceleration mode.Four kinds of acceleration and deceleration time,Ramp Time Range :0.0~6000.0s
DC brakeDC brake start frequency: 0.00~600.00HzDC brake time:0.0s~10.0sDC brake current:0.0%~150.0%
Basic functionsJog brakeJog frequency range:0.00Hz~50.00Hz.Jog deceleration time: 0.0s~6000.0s.
Simple PLC, Multi-speedThrough the built-in PLC or control terminal to achieve up to 16 speed running
Built-in PIDFacilitate the realization of process control loop control system
Automatic voltage adjustment(AVR)When the grid voltage changes, can automatically maintain a constant output voltage
Fast current limit functionMinimize over current fault protection inverter running
Over voltage Over currentSystem automatically limits of current and voltage during operation to prevent frequent
RunCommand sourceGiven the control panel, Wholesale New Products Adjustable Gas Ballast Valve Rotary Vane Vacuum Pump Centrifugal Pump Price control terminal, serial communication port given.
Frequency given9 kinds of frequency given sources: digital setting, keyboard potentiometer setting, analogVoltage, given analog current reference pulse is given, the serial port is given, multi-speed given, PLC is given, the process PID reference. There are several ways to switch
Input terminal7 Switch input terminals, 1 way to make high-speed pulse input.3-channel analog inputs, including 2-way 0~10V / 0~20mA voltage and current options,a way to support -10~+10 V input
outputterminal2-way switch output terminal, which supports a maximum road speed 100kHz pulse output.2 relay output terminals.2 analog output terminal, and optional voltage and current.
FeaturedfunctionsParameter copy, parameter backup, flexible parameter displayed & hidden. Common DC bus(Contains below 30 KW).Various master & auxiliary command and switchover.Reliable speed search started.A variety of Accel / Decel curves programmable.Timing control, fixed length control, count function.Three faults recorded.Over excitation brake, overvoltage stall protection programmable, under voltage stall protection programmable, restart CZPT powerloss.Four kinds of Accel/Decel time.Motor thermal protection.Flexible fan control.Process PID control, simple PLC, 16-step speed control programmable.Wobble frequency control.Multi-functional key programmable, LW10008 8bar 115psi 1m3min 30CFM piston air compressor 7.5kw 10hp field-weakening control.High-precision torque control, V/f separated control, torque control at sensor-less vector control.
ProtectionfunctionProvide fault protection dozen: Overcurrent, Overvoltage, Undervoltage, Overtemperature, Overload Etc Protection.
Display and keyboard LED DisplayDisplay Parameters
Key lock and function selectionRealize some or all of the keys locked, scope definition section keys to prevent misuse
Run and stop monitoring informationIn the run or stop can be set to monitor U00 group 4 objects were.
EnvironmentPlace ofoperationIndoors, no direct sunlight, free from dust, corrosive gases,flammable gases, oil mist, water vapor, water drop and salt, etc.
Altitude0~2000mDe-rate 1% for every 100m when the altitude is above 1000 meters
Relativehumidity5~95%, no condensation
VibrationLess than 5.9m/s2 (0.6g)
OthersEfficiencyRated power≥93%
InstallationWall-mounted or Flange mounting
IP gradeIP20
CoolingmethodFan cooled
Related Products FAQ Q: Are you trading company or manufacturer ?A: Frecon Electric is a VFD manufacturer. Q: Do you provide samples ? is it free or extra ?A: Yes, we could offer samples to test with reasonable charges.We can send the samples to you by express like DHL or UPS, normally you can receive the sample in 1 week. Q: What is your terms of payment ?A:100% in advance . Welcome pay by Trade Assurance through Alibaba so your payment can get guarantee from ALibaba company. L/C and O/A would be possible for regular customers.Q: What is your terms of packing?A:Generally, We use carton box pack low rated power VFD, VFDs that are 55KW and above are packed by wooden box. reasonable special packing requirements from customers are acceptable for us. Q. Do you test all your goods before delivery?A: Yes, 100% test before deliveryQ: How long is your delivery time?A: Our production capacity is 9000PCS VFDs every month, generally,the delivery time is around 5-10 days if the goods are in stock. it depend on the quantity. With years of export experience along with excellent quality, 15HP Electric Start CZPT Power KP460 11KW Gasoline Engine advanced services and competitive prices, Frecon Electric has won numerous customers’ trust and support.


Worm gear reducer

Cheaper than planetary gearboxes In many cases, worm gear reducers are a popular alternative to planetary gearboxes. A worm gear reducer is a mechanical device with vertical input and output shafts. This allows for very high reduction ratios. They are typically used in high-reduction situations such as machine tools.
Worm gears are cheaper than traditional gearboxes. They also have many benefits, including noise reduction. The output shaft of the worm gear reducer is almost 90 degrees from the motor input shaft, making it ideal for high-torque applications.
The worm gear reducer adopts an aluminum body, which is light in weight and high in operation efficiency. Additionally, they are available with hollow shafts and mounting flanges. In terms of initial cost, worm gear reducers are cheaper than planetary gearboxes. In addition, they have better efficiency and longer service life.
Worm drives are also ideal for portable battery-powered lifting equipment. The high gear ratio of the worm gear ensures that it does not reverse drive. The worm gear has a spring-applied brake that holds the motor in place.
Planetary gearboxes are popular among industrial users. The efficiency of planetary gearboxes is important for practical applications.


The compact worm gear unit consists of a housing with an inner cavity. It has two side walls, one on either side of the front cover (13) and one on both sides of the rear cover (14). The front end cap is screwed onto the housing and the inner cavity is accessed through the rear end cap.
The compact worm gear unit can be configured to suit your application. They have many advantages, including saving space and increasing torque. The range includes single-envelope and double-envelope versions, available in a number of different power ratings. Additionally, they are IP65-rated, making them ideal for applications involving high radial or axial forces.
The compact worm reducer is a simple but effective worm drive. Its worm gear 16 meshes with the output shaft and rotates relatively stably. It also has a front-end cap and rear bearing. This enables the compact worm reducer to reduce vibration without damaging the output shaft.
Compact worm gear reducers are ideal for many applications and offer high efficiency. The compact design means you can mount them on the motor’s flange or base. Its durable construction makes it ideal for a variety of industries. They are extremely durable and can handle high-pressure and washdown conditions. They also come standard with a synthetic shaft.

high efficiency

High-efficiency worm gear reducers are ideal for applications that require precision, repeatability, and efficient performance. These reducers are designed with state-of-the-art servo motor technology to provide tight integration and an angular backlash of less than two arc minutes. The reduction ratio can be lower if the application requires it.
Rising energy costs have led to an increased focus on the efficiency of drives. In response to this, manufacturers have increased the efficiency of worm gear reducers through a number of technical improvements. By minimizing losses from rolling and sliding friction, worm gear reducers are more efficient than their counterparts.
The high-efficiency worm reducer is simple in design and has the characteristics of a compact structure, high-speed ratio, low power consumption, and self-locking. Other advantages of these reducers include low noise and long service life. Many also have built-in control systems that allow manual and remote adjustments. They also feature automatic shutdown protection and thermal protection.
High-efficiency worm reducers can be used for mechanical acceleration. The input hypoid gear is usually made of steel, while the output hypoid gear is usually made of bronze. Bronze is a soft metal that is good at absorbing shock loads. However, bronze requires work hardening to achieve optimum hardness. For large worm gears, this process can take 300 to 550 hours.

low clearance

A low-clearance worm reducer is a device used to adjust the speed of a rotating shaft. It uses a worm gear consisting of two members. One worm is at one end of the shaft and the other is at the other end. Both worms are screwed into the synchronous drive structure.
Low clearance worm gear reducers can be produced on conventional worm gear production lines without overlapping investments. These units are usually made of soft rubber. Also, they are relatively quiet in operation. These machines are designed so that they are suitable for use in elevators. The softer material in the worm gear also helps absorb shock loads.
The tooth profile of the worm gear is designed to change with the axial movement of the worm. Worms have thinner right teeth and thicker left teeth. As the worm moves to the right, its teeth mesh with the worm gear, reducing backlash.
There are many different types of worm gears. The design of gears depends on many factors, including backlash, thermal design, friction factors and lubrication. Worm gears are made of several different materials. Some different types of materials used in worm gears require special lubrication.


The quieter worm reducer is designed to reduce the noise level of the rotating gear motor. The device has more gear teeth in meshing contact with the gears, which helps it run more quietly. In addition to being quieter than other transmissions, it’s also less expensive than its counterparts.
Worm gearboxes can be used for different applications, but they are not as efficient as helical gearboxes. Worm reducers are cheaper but less than 90% efficient. Higher gear ratios reduce efficiency, so worm gear reducers are better suited for applications that require low-speed torque. The cost of buying a worm gearbox will depend on the horsepower and gear ratios required.
Worm reducers are also more comfortable to use than planetary gearboxes. They don’t vibrate and heat up quickly, making them an excellent choice for low to medium horsepower applications. Worm gear reducers can be upgraded to improve their performance by combining with other gear trains or gearboxes.

easy to replace

An easily replaceable worm gear reducer can save you a lot of money. A worm gear reducer is part of a chain drive and allows you to change gear ratios quickly and easily. Worm gear reducers can be easily replaced in a number of ways. It’s a good idea to read the manufacturer’s manual before replacing a worm gear reducer. Make sure you have the instructions available so you can refer to them in the future.
Worm gear reducers offer many advantages, including long service life and low noise. They are also designed with a 90-degree output shaft for easy installation. Another advantage of these gear reducers is that they can be used with both solid and hollow output shafts. This means less maintenance and downtime.
Worm gear reducers are widely used. Most gear manufacturers have large inventories. Worm gears also have uniform mounting dimensions. Dimensional consistency means you don’t have to worry about matching the shaft length and diameter to the worm gear. You can easily find a replacement worm gear reducer for your equipment.
When replacing the worm gear reducer, check the lubricating oil recommended by the machine. If not included, use original gear oil. Be sure to follow the manufacturer’s instructions carefully.

China FRECON High Performance Variable Speed Drive Variator Frequency Inverter 11kW 15HP 450KW VFD     worm gearbox back drive	China FRECON High Performance Variable Speed Drive Variator Frequency Inverter 11kW 15HP 450KW VFD     worm gearbox back drive
editor by Cx 2023-07-13