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High performance vector control frequency inverter

Qma Electric (shanghai) Co.,Ltd

High performance vector control frequency inverter

Place of Origin : China

Brand Name : Qma

Model Number : Q9000

Certification : CE ISO

Price : negotiable

Packaging Details : carton,wooden case

Delivery Time : negotiable

Payment Terms : T/T


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Q9000 Series is a kind of high performance universal vector control inverter. Current vector technology and advanced modern control theory are used to provide more torque in operation at low speed and achieve high performance dynamic control. There are four control modes to select. Even without PG vector control, it can obtain a high torque and failure-free operation from a low speed at 1%; While with PG control, it can easily obtain high torque operation at 0 speed, which is the ideal choice for you to improve the quality and productivity.


Perfect Current Vector Control
By means of simultaneously controlling the primary current and its phase, the magnetic field current and torque current can be controlled respectively and individually to obtain a smooth run, a speed control and torque control with high torque and high precision at a very low speed

Various Control Functions
PID control, slip compensation function, speed search, over/lower torque detection and energy-saving operation control function

Excellent Torque Characteristics
Even if without PG, a high torque of 150%/0.5Hz can be reached

Powerful Braking Function
Powerful braking function can be fulfilled with built-in braking units for the inverter below 15kw and external braking resistors for that above 15kw

Hi-efficiency Energy-saving control
Wonderful energy-saving function beyond imagination, the hi-efficiency energy-saving control reaches the maximum effect in theory

Low Noise Operation
High carrier frequency SPWM modulation type may greatly suppress the noise, which is especially suitable for the place with limitation for noise.

Perfect Power Ultraharmonics Suppression Countermeasures
Built-in DC reactor for the purpose of improving power factors is equipped for all series of 55kw and above; DC reactor wiring terminal is reserved for the units below 55KW for your choice of DC reactor to reduce the interference of the ultraharmonics of power.


* Powerful Q9000 may satisfy various needs of different users
* Standard built-in PID feedback control may provide a precise closed loop control
* V/F separation and free V/F image function may fully meet any special requirements of various motors
* Powerful autotuning function enables all kinds of motors to run effectively
* Whatever precise machinery or multi-motor operation, there are four control modes combined closely to fulfill best running
* High torque at low speed and smooth acceleration/deceleration in whole frequency domain
* Simple and flexible operation is suitable for various operating conditions
* Expanding function applies to stand-alone or network
* Independent programming satisfies any special requirements of the customers well.
* The built-in PG card is suitable for incremental encoder of any brands, including HEIDENHAN, NEMICON, etc
* Self-check protection function will give out corresponding fault indication and stop the output of the inverter at the same time when the parameter is not correct.
* It can run by autotuning of the inverter that may measure the distance between two sections automatically
* The operation of the inverter can be counted and controlled by the velocity curve to obtain rectilinear stop and high positioning precision
* The speed signal supports multiple speed control and analog signal control
* Vibration at high speed or low speed can be compensated
* S running curve and the startup time or stop time for deceleration or deceleration can be set freely
* Easy to install and debugging and compatible with Yaskawa series inverter, which can be replaced directly


Rated OutputMotor powerKW2.23.745.57.5111518.522303745557590110132160185220250315
Rated powerKVA4.76.1811142126313750617398130150170202230260340370460
Rated currentA6.289141827344148658096128165183224264302340450510630
Output voltageVThree-phase 380/415/440/460V (Proportional to input voltage)
Max. output frequencyUp to 400Hz available by programming
PowerRated voltage and frequencyThree-phase 380~460V, 50Hz/60Hz
Allowable voltage fluctuation+10%~-15%
Allowable frequency fluctuation±5%
Rated OutputMotor powerKW2.
Rated powerKVA4.26.79.5131924303750617085110160
Rated currentA1117.5253349648096130160183224300450
Output voltageVThree-phase 200/220/230/240V (Proportional to input voltage)
Max. output frequencyUp to 400Hz available by programming
PowerRated voltage and frequencyThree-phase 220~2400V, 50Hz/60Hz
Allowable voltage fluctuation+10%~-15%
Allowable frequency fluctuation±5%
Control FeatureControl methodSine wave PWM dynamic current vector control (with V/F control, torque vector control, PG feedback vector control)
Speed control accuracy±0.2%[±0.02% with PG]
Speed control range1:100[1:1000 with PG]
Speed control response10Hz[30Hz with PG]
Starting torque150%/0.5Hz[200%/0Hz with PG]
Torque response20Hz, 50ms[40Hz, 25ms with PG]
Torque accuracy±5%
Torque limit4 kinds of vector control methods by parameter setting
Frequency controlling range0.01~400 Hz
Frequency accuracyDigital signal reference: ±0.01% (-10℃~ +40℃), analogue reference: ±0.1% (25℃±10℃)
Frequency setting resolutionDigital signal reference: ±0.01Hz (Below 100Hz), analogue reference: ±0.03Hz/60Hz (12bit)
Output frequency resolution0.001 Hz
Frequency setting signalAnalogue reference DC-10~+10V (20KΩ), 4~20mA (250Ω)
Braking torque±20 % (approximately 150% with braking resistor option)
Accelerating/Decelerating time0.01-6000.0s (Accelerating/Decelerating time setting independently, 4 kinds of time controlling modes available)
Overload capability150% of Rated torque current for 60s, 200% of rated torque current for 10s
Running/stopping settingOperator, RS-485, Control circuit terminal (frequency setting and parameter access control available by computer)
Affiliated control functionParameter save operator, RS-485, torque control, speed control, PID control, multiple-speed control, couple control, etc.
Protective FunctionInstantaneous overcurrentMotor coasts to stop at approx. 200% rated output current.
Motor overload protection

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frequency inverter


ac inverter


ac drives

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