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inverter, AC drives, frequency inverters, vfds, variable frequency inverter
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Qma Mini Vector Inverter

Qma Electric (shanghai) Co.,Ltd

Qma Mini Vector Inverter

Place of Origin : China

Brand Name : Qma

Model Number : Q7000

Certification : CE ISO

Price : negotiable

Packaging Details : carton,wooden case

Delivery Time : negotiable

Payment Terms : T/T


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A700 SERIES Hi-Performance Low-noise Mini Vector Inverter is a new-type mini-AC inverter but packed with high performance features for induction motors available from 0.4-2.2kw which is the ideal solution to variable speed.
A700 is featured for SPWM design which provides low noise and high start torque. The inverter is independent and used in 50/60Hz (±5% fluctuation is allowable). The current overload rating is 150% for 60 seconds, sensorless vector control and V/F control make this inverter more brilliant for most general applications.
A700 is feature-packed, low cost and compact. The high-speed current limiting function minimizes over-current trips. Inrush current suppression plus grounding protection are built in for safe and trip free operation.
A700 is innovative design features; the digital operator includes a 3-digit LED status display. The multi-speed step function (7 pre-set speeds) and 4 acceleration/deceleration time make it ideal for food processing and its smooth speed variation can bring energy savings in fan and pump operation.
A700 also have multi-function I/O terminals, 0-10V, 4-20mA inputs and analog output, plus lip compensation, over torque detection and high speed search which all make this highly specified inverter a particular versatile inverter.
RS-485 Modbus serial communication port supports net work which is convenient for variety of host link allowing 32 nodes on a single net work.
A700 is proficient for conveyors, grinders, centrifuges, pumps, fans, and blowers used in material handling, packaging, food processing, and commercial laundry etc.
A700 is a perfect choice for high performance and low cost. Trust it for your success


440V Class
Rated OutputMotor powerKW1.
Rated powerKVA3.74.76.111142126313750617398130170
Rated currentA4.86.28141827344148658096128165224
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%
220V Class
Rated OutputMotor powerKW1.
Rated powerKVA3.
Rated currentA81117.5253349648096130160183224300450
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 5s
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 protectionElectronic thermodynamic electric protection
Fuse protectionMotor coasts to stop
Momentary power lossContinue to run during power loss less than 2s (standard)
Overload150% of rated output current for 60s, 200% of rated output current for 5s, motor coasts to stop
Fin OverheatThermocouple temperature switch protection
Stall preventionStall prevention during acceleration/deceleration and constant speed operation
Ground faultProtected by electronic circuit
Power charge protectionIndicates until the main circuit voltage reaches 50 V
EnvironmentAmbient temperature-10℃~+50℃(internal type)
Ambient humidityBelow 90%RH (non-condensing)
Vibration9.8 m/s2 (1G) at a vibration frequency below 20 Hz, 2 m/s2 (0.2G) at a vibration frequency above20 Hz
Applicable placesIndoor (Protected from corrosive gasses and dust)
Storage temperature

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ac inverter


ac drives

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