Shandong, China
Business Type:
Manufacturer/Factory & Trading Company
Registered Capital:
7.39 Million USD
Plant Area:
12000 square meters
Export Year:
Main Markets:
South America, Eastern Europe, Southeast Asia, Mid East, Eastern Asia, Western Europe
OEM/ODM Availability:
OEM/ODM Service
Sample Available

Medium Voltage VFD, Variable Speed Drives VFD, AC Variable Frequency Drive manufacturer / supplier in China, offering Medium Voltage Variable Speed Drives VFD, Qd800 Series 0.4-22kw Vector Control AC Frequency Drive Converter, Speed Controller for Single Phase Motor and so on.

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Medium Voltage Variable Speed Drives VFD

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Min. Order / Reference FOB Price
5 Pieces US $100/ Piece
Port: Qingdao, China
Production Capacity: 100000
Payment Terms: L/C, T/T
Application: High-performance Transducer, Three Phase Transducer, General Transducer, Single-phase Transducer
Output Type: Triple
Principle of Work: Vector Control Transducer
Switch Mode: PWM Control
Main Circuit Type: Voltage
Voltage of Power Supply: Low Voltage Variable-Frequency Drive

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Basic Info

Model NO.: QD800
Link of Transformation: AC-DC-AC Variable-Frequency Drive
Nature of DC Power: Voltage Variable-Frequency Drive
Function: Textile Special, Constant Torque Universal Type
Brand: Ozer
Trademark: Ozer
Transport Package: Export Standard Packing
Origin: China

Product Description

QD800 series converter adopts high-performance vector control technology, outputting with low speed and high torque, which has great dynamic characteristics and superior overload capacity, provided with user-programmable function, background monitoring software and communication bus function, supporting various kinds of PG cards. It has powerful combined functions and stable performance. It is used in spinning, papermaking, machinery, steel, petroleum, chemical, package, food, fan, water pump and driving of various kinds of automation equipment..

Medium Voltage Variable Speed Drives VFD

Numerous voltage classes: It supports single-phase 220V, three-phase 220V, three-phase 380V, three-phase 480V and three-phase 690V.
Numerous control modes: vector control of speed sensor, vector control of speed-less sensor, V/F control, and V/F individual control
:Numerous fieldbuses: It supports four buses, including Modbus-RTU, Profibus-DP, CANlink, CANopen.
High starting torque: It provides 150% of starting torque under 0.5Hz, and 180% of zero-speed torque under 0Hz.
Powerful protection functions: Input and output phase-loss protection, overcurrent protection, overvoltage protection, under-voltage protection, overheating protection, overload protection and short circuit protection.

Medium Voltage Variable Speed Drives VFD

Preeminent responsiveness: supporting of various kinds of motors; various encoder types; rapid current limiting function; automatic voltage-constant function; virtual input and output function; multiple-motor switching function; user parameter recovering and function parameter customizing function; optional failure process mode function; PID parameter switching function; transient power failure no-stop function; timing service function (6500 minutes at most); built-in PLC and 16-velocity function.

Product parameter:
The max frequencyVector frequency scope:0-500Hz
V/F frequency scope:0-500Hz
Carrier frequency0.5kHz-16kHz(self-adjusting)
The frequency resolution
of import
The setting figure: 0.01Hz
The simulation setting:(The max frequency)*0.025%
The control methodSVC
V/F control
Pull-in torqueType G:0.5Hz/150% (SVC); 0Hz/180% (FVC)
Type P:0.5Hz/100%
Overload capacityType G:The duration of 150% rated current is 60s
The duration of 180% rated current is 3s
 Type P:The duration of 120% rated current is 60s
The duration of 150% rated current is 3s
Torque BoostAUTO-Torque Boost
HM-Torque Boost:0.1%-30%
DC brakingDC braking frequency:0.00Hz-The max frequency
Electronic controlThe range of frequency:0.00Hz-50.00Hz
The duration of acceleration and deceleration:0.0s-6500.0s
Simple PLC,
Multi-velocity control
In the control of built-in PlC or terminal,there are 16 velocities.
Built-in PIDBe easy to control the closed-loop control system
AVRKeeping the output voltage stability,when grid voltage instability.
The control of over 
voltage and current
Auto-limited the voltage and current ,
preventing trip result from often brake-make.
Fast current limiting functionMinimizing flow failures, protect the normal operation of the inverter
Torque limit and control"Excavator" characteristics, the torque limit automatically during running, prevent frequent over-current trip; The torque control closed-loop vector model is achieved
Outstanding featuresBased on current vector control technology of asynchronous motor control
Instantaneous stop constantlyInstantaneous power failure through load feedback energy compensation voltage is reduced, maintain frequency converter in a short period of time to continue running
Virtual IOFive groups of virtual DIDO, suggested that logic control can be realized
Timing controlTiming control function: set time range 0.0 Min to 6500.0 Min
Motor switchTwo groups click parameters, which can realize two motor switch control
Support multithreading busSupport: four kinds of fieldbus Modbus, profibus-dp, CANlink, CANopen
Motor overheating protectionOptional IO expansion card 1, click on the temperature sensor input analog input AI3 acceptable (PT100, PT1000)
Support more encoderSupport the difference, open collector, the sale, rotating transformer, such as is cosine encoder
A user programmableOptional user programmable card, can realize the secondary development, compatible with common PLC programming way
Strong background softwareSupport the inverter parameters and virtual oscilloscope function operation.
Virtual oscilloscope can be used for frequency converter internal state graphic monitoring
The environmentUse placeIndoor, is not subject to direct sunlight, no dust, corrosion gas I, combustible gas, oil mist, water vapor, water or salt, etc
Use placeLess than 1000 m
The environment temperatureMinus 10 degrees Celsius to above 40 degrees Celsius zero (ambient temperature in 40 ~ 50 degrees, use the lower it)
humidityLess than 95% RH, no water condenses
vibrationLess than 5.9 m per square (0.6 g)
Storage temperatureTo the above 60 degrees Celsius zero minus 20 degrees Celsius
The IP ratingIP20
Pollution levelsPD2
The power distribution systemTN,TT
Application :
It is used in wire drawing machine, film winding, coating machine, CNC machine tools, weaving machines, jacquard machines, fans, pumps, chemical fiber, textile, synchronous interaction, injection molding machines, lifting, elevator, machine tools, rolling mills, tube wire processing , lifting, lifting equipment, mill.
 Medium Voltage Variable Speed Drives VFD

Product Certifications:
Medium Voltage Variable Speed Drives VFD

company information:
Shandong Ozer Electric Technology Co.,Ltd, locates at the city of kite - Weifang, which is a private joint-equity enterprise integrating development, production and sales of software and equipment in the field of energy saving and electric automation control. The product covers AZPR series smart soft starter, QD series high-performance frequency converter, double-PWM AC-DC-AC alternating electromagnetic power supply, PLC and DCS control system; the company possesses first-rate talents, technologies and equipment, and powerful product R&D center, and the technical level always ranks top in China. Our products have excellent performance and reliable quality, widely applied in the fields of papermaking, steel, mining, petroleum, chemical, spinning, printing and dyeing, sewage treatment and others, which obtains good reputation from clients;
Medium Voltage Variable Speed Drives VFD

Workshops and packing :
Medium Voltage Variable Speed Drives VFD

Contact us:
Shandong Ozer Electric Technology Co.,Ltd
Tel: 86-0536-2280828  8510239
Fax: 86-0536-8506819

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