AUD32 Slim type VFD

AUD32 Slim type VFD

Product Item:
Rated Power	0.75KW
Nominal Voltage	320V~480V
Warranty	18months
Application	asynchronous motor
warranty	18months
Display	LCD
Control mode	V/F,SVC
Overload capacity	150%Rated Current 60S
  • Product Detail
  • FAQs

AUD32 series VFD is a new generation of high-performance inverter, which is designed to meet the application needs of users. It has rich functions, excellent and stable performance,and simple and novel structure.

AUD32 series VFD adopts advanced speed sensorless vector control technology, advanced motor parameter identification,online estimation technology and advanced flux estimationtechnology, which has been greatly improved in terms of speed regulation range, dynamic response, control accuracy and low frequency torque. In addition, AUD32 has rich application functions and perfect protection functions, making it more convenient, reliable and safe to use.


  1. AUD32 series VFD is a real high-performance vector control general-purpose inverter, which can be widely used in petrochemical, steel, paper, HVAC, water treatment, medicine,textile, fire protection and other industries 

  2. 0.75-37kw frequency converter has no P0 terminal; For frequency converters above 45KW (included),be sure to remove the short connector between P0 and (+) when installing DC reactor (optional).

  3.  Only 0.75-37kw frequency converters have Pb terminals, and braking resistors can be connected between Pb and (+). For frequency converters above 45KW (included), braking unit and braking resistance are required during braking.

  4.  0.75-15kw frequency converter has no (-) terminal.

  5.  The 0.75-15kw frequency converter has no li7 and li8 terminals.

  6.   Input reactor, DC reactor

  7.   Braking unit, braking resistance





Control technology

Adopts dual CPUs and advanced German technology to separate and process
drive signals and control signals, and the operation is more stable.

Characteristic control mode

The unique energy-saving mode can save more than 35% energy in fan

Anti voltage jitter function

In case of instantaneous power failure, the frequency converter can continue to
operate at a low frequency, with a maximum power failure time of 2.35 seconds

Circuit board protection

Full automatic protective coating equipment ,Each circuit board is coated with
protective layer at least twice

Factory load test aging

Each product shall be subject to 24-hour aging test with load before leaving the
factory, and the test contents include overload test, overvoltage test, overcurrent
test, etc

Simple PLC

Simple PLC program can be set according to customer application requirements,
with a high degree of customization

Fire mode

Suitable for fire protection applications


Up to 16 speed settings are supported

Torque raise at low

To improve low frequency torque about 0.1% ~30% under V/f control and
sensorless speed vector control through raising voltage and torque.

V/f curve

Linear type or multi-point type

Acceleration and
deceleration curve

Linear type or Model S acceleration and deceleration; three groups acceleration
and deceleration time; time range for acceleration and deceleration range:

Built-in PID

It is convenient to realize process control under close-loop control system.

DC brake

DC brake range: 0.0Hz~maximum frequency; brake time: 0.0s~20.0s; brake
action current value: 0%~100%.

Jog control

To realize instant start and instant stop; jog frequency setting range: 0.0~20.0Hz;
jog stop type: deceleration/ freedom/DC brake

Jump frequency

Available to set three jump frequency points and related jump frequency ranges
to avoid frequency inverter's running within this frequency band.

Two sets of motor
parameter switch

Available to set two sets of motor parameter and could freely switch each other
in order to match currently droved motor

Protection for VFD

Input phase failure, output phase failure, under load monitor, over torque, under
voltage, over voltage, over current, over heat, short circuit among three phases

Protection for motor

Motor overheat, motor current limiting amplitude, motor over load, motor short






Rated voltage and frequency

3-phaseVoltage:310V-480V , 50Hz/60Hz

Allowable value of change

Voltage: 310V-15% ~ 480V+10%; Frequency: ±15%

Main output

Output voltage

3 phase, 0~480V ±15%

Output frequency

0.5Hz to 400Hz

Overload capacity

150% of rated output current for 60s, 200% of rated output
current for 2s


Modulation mode

3-phase PWM, 2-phase PWM

Control mode

V/f control for constant torque, V/f control for quadratic load,
vector control without PG (open loop control),Energy-saving

Setting method of run command

Outer terminal, keyboardpanel or serial communication

Setting method of speed

Analog setting, keyboard, serial communication, UP/DOWN
speed setting from external terminal

Speed setting resolution

Keyboard: 0.1 Hz

Analog setting: 0.05/50Hz (10bit)

Speed control precision

V/f control:±2%

vector control without PG (open loop control) ±0.2%

Speed control range

V/f control 1:40

vector control without PG (open loop control) 1:200

Acceleration and


switching frequency

Analog input


2 ways: AI1,AI2


DC voltage or DC current

Maximum input range

AI1: 0 to 5VDC, 0 to 10VDC, 0/4 to 20mA DC receivable AI2:
0 to 10VDC or PTC probe input receivable

Analog output


2way: AO1, AO2


DC voltage or DC current

Maximum input range

Voltage output: 0 to 10V, Current output: 0/4 to 20mA

logic input




Source or Sink

Maximum input range


logic output


pulse signal output(LO-CLO), relay output 1,2(T1A

pulse signal output

OC,output frequency,,act other function

relay output

RA-RB-RC, including a NO contact and a NC
contactMaximum switch capacity:T1A-TIC/T2A-T2C:5A
@250VAC, or 5A@30VDC T1B-T1C/T2B-T2C: 3A @250VAC
or 3A @30VDC

Serial communication interface

RS485 interface supports Modbus protocol.


Two-lineLED digital display

For display of frequency setting, output frequency, fault code
and parameter setting etc.Lcd display is avarilable for 15kw
to 800kw VFDDisplay is moveble.



Development of D32series frequency inverter follows strict
international standards and relevant recommended IEC and
EN standards for control devices, especially IEC/EN61800-5-
1 and IEC/EN61800-3.


Dreading unnecessary when altitude is 1000m or below
(Dreading necessary at altitude higher than 1000m)

Ambient environment

0.75kW-800kW: Reliable operation at -10 ~ 50°Cwithout
debating. When top protective cover is taken off, the
environment temperature can be as high as +50 °C. Above
+50 °C, the current drops by 2.2% for each rise of 1 °C in
temperature. Storage: -25~ 70°C


No condensed water or drip at 5 ~ 95%, In accordance with

Impact strength

15gn for continuous 11ms, In accordance with IEC/EN60068-

Maximum antipollution capacity

Class 2, in accordance with IEC/EN61800-5-1


Protection level

0.75kw-15kw: IP20
18.5kw-160kw: IP40
185kw-800 kw: IP20

Cooling Method

Forced Air cooling

Installation method

Wall mounted

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Q: When will you arrange production?
A: We typically initiate production immediately upon receipt of your payment, provided the item is in stock. Otherwise, please consult with us to confirm the lead time.

Q: What is your accepted payment type?
A: We accept wire transfers, Paypal, Western Union, and Alibaba Trade Assurance. However, and Western Union, along with Alibaba Trade Assurance,  

Q: Which logistic forwarders do you usually work with?
A: We collaborate with reputable logistics providers such as EMS, TNT, UPS, FedEx, and others. You also have the option to designate your own forwarder for shipment.

Q: What voltage range can you support?

· Single 220V input, three-phase 220V output.

· Three-phase 220V input, three-phase 220V output.

· Three-phase 380V input, three-phase 380V output.

· Single-phase 380V input, three-phase 380V output.

· Single 220V input, three-phase 380V output.

· 220V/380V/480V/690V/1140V.

Q: How do you ensure product quality?
A: Our production strictly adheres to the ISO9001 quality control system. Following four rounds of quality inspection and high-temperature testing, we affix the "QA" pass label.

Q: Do you accept OEM business?
A: Yes, we gladly accept OEM and ODM projects with your authorization.

Q: Can I place a sample order?
A: Certainly, we encourage sample orders for quality testing. Mixed samples are also acceptable.

Q: What is the lead time?
A: Sample orders require 3-5 days, while mass production typically takes 1-2 weeks.

Q: Do you offer a guarantee for your products?
A: Yes, we provide an 18-month warranty.

Q: What is your return policy?
A: We accept returns within 30 days of delivery for items that are damaged or defective. Please contact our customer service team to initiate the return process.

Q: How can I track my order?
A: Once your order is shipped, you will receive a tracking number via email. You can use this number to track your shipment through the respective logistics provider's website.

Q: Are your products compliant with international standards?
A: Yes, our products are manufactured to meet or exceed international quality and safety standards. We ensure compliance with relevant regulations and certifications.

Q: Can I customize the specifications of a product?
A: Yes, we offer customization options for certain products. Please reach out to our sales team to discuss your specific requirements and receive a quote.

Q: What do I do if I encounter technical issues with a product?
A: In case of technical issues, please contact our technical support team. They will provide assistance, troubleshooting guidance, or arrange for necessary repairs or replacements.

Q: Is international shipping available?
A: Yes, we offer international shipping. Shipping costs and delivery times vary based on the destination. Please contact us for specific information regarding international shipments.



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