AC70E Portable Mini Frequency Inverter
  • AC70E Portable Mini Frequency Inverter

AC70E Portable Mini Frequency Inverter

Developed with advanced sensorless vector control, V/F control.
User-friendly micro power inverter, easy in installation, operation and maintenance.
High torque, high precision, multi-velocity, built-in simplified PLC and PID controller.
Applied in food processing, packing, textile, automation processing line.

Veichi AC70E is another new generation of high performance general purpose VFD drive, featuring portable mini size, modular design, low temperature rise, low noise and prominent performance. Based on its advanced design, AC70E portable inverter is well-known for its good quality, high torque, high precision, high reliability, and competitive price.

1. Control modes

Two control modes for you to choose: V/F control and vector control without PG. It allows you to select the control mode according to the practical control requirements.

vector control V/F control

2. Mini size

Small size inverter that it's easy in installation for users.

mini inverter

3. High precise control

Integrate with simplified PLC, PID controller, braking unit which ensures high precision in position control.

4. Keypad

Removable keypad that it allows users to control the inverter within 50 meters.

5. User-friendly

It has parameter copy function, historical fault record querying function and complete fault protection function.

6. Communication

Built-in RS485 port that it can be connected to communication network conveniently.

7. Adaptable to harsh environment

The PCB is coated with Germany conformal coatings that AC70E is dust-proof, water-proof, mould-proof and etc. which ensures it working perfectly in harsh environment.

8. Wide voltage range

Wide input voltage range that AC70E mini inverter is suitable for working in different application occasions with good performance.

9. Independent air duct design

Specially designed with independent air duct, so our AC70E portable inverter has perfect ventilation capacity and strong environment adaptability. To learn more about Veichi low voltage inverters now.







Single phase 220V 50/60Hz
Three phase 380V 50/60Hz

Allowable fluctuations

voltage: ±15%, frequency: ±5%


Frequency range


Frequency Accuracy

±0.5% of max frequency

Frequency setting resolution

0.01Hz:Operating“up”and”down”keys on keyboard
0.2Hz:Potentiometers analog input

Voltage/frequency characteristics

Voltage 50% -100%, the rated voltage adjustable,
Motor rated frequency 25-400Hz(2000Hz) adjustable

Carrier frequency

1.0-15.0KHz/Random carrier modulation

Torque upgrade

0--25.0% adjustable/auto torque upgrade/random V/F curve optional

Maximum Capacity

150% for one minute, 180% for 2s, 200% instant jump.

ACC and DEC time


Rated output voltage

Take advantage of the power supply voltage compensation function, if motor rated voltage is 100%,the voltage can be set in the 50 -100% scope(the voltage output should not exceed the input voltage )

AVR adjust

When the grid voltage fluctuates, changes in the output voltage is very small, remained constant V / F

Automatic energy-saving operation

According to the load conditions, automatic optimize the V/F curves to implement energy saving operation

Standard functions

PID control, ACC and DECtime adjustable, ACC and DECmode variable, Carrier frequency adjustment, Torque upgrade, Current limiting, Speed tracking and restart, Frequency hopping, Frequency fluctuation limite control, Program running, Multi-steps speed, Pendulum frequency operation, RS485, Analog output, Pulse output frequency


Energy-consuming braking, DC braking

Frequency setting input

Keyboard number settings, keyboard potentiometers/ external terminal VS: 0 ~ 10V, the external terminal AS : 4-20mA, RS485 and signal composition and terminal options

Signal feedback input

External terminal VS: 0 ~ 10V external terminal AS: 4-20mA, RS485

Input order signals

Start, stop, positive and negative rotating , jog, multi-steps speed, free parking, reset, ACC and DECtime choice, frequency settings channels choice, external malfunctions alarm

External output signal

Relay output, the collector output, 0-10V output, 4-20mA output, the frequency pulse output

Protection function

Overvoltage, undervoltage, current limiting, over-current, overload, electric thermal relays, overheat, pressure stall, data protection



Function number/data


Output frequency, give frequency, output current, input voltage, output voltage, motor speed, PID feedback, quantitative PID, module temperature, input and output terminal


Overvoltage, undervoltage, overcurrent, short circuit, phase missing, overload, heat,  pressure stall, current limiting, data protection is damaged, current fault operating conditions, historical fault


Installation sites

Indoor, elevation of not more than 1000 m, no corrosive gases and direct sunlight

Temperature, humidity

-10 — +40oC, 20% — 90%RH(No condensation)


Below 20Hz less than 0.5g

Storage Temperature

-25 — +65oC

Installation mode

Wall-mounted mode

Protection degree


Cooling Mode

Forced air-cooling