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AT20 Série Contrôle vectoriel haute performance

Excellente performance de contrôle; Conception structurelle optimisée; Diverses méthodes d'installation; Facile à utiliser et à entretenir Divers dans la configuration du produit et l'interface, puissant dans la fonction Intégrez diverses fonctionnalités du produit pour répondre aux divers besoins des applications.

Caractéristiques techniques

  • Input voltage,V
  • 220
  • 380
  • Power range, кW
  • 0.4 - 3.7
  • 0.75- 250

Excellent Control Performance

Below 2.2KW (including) can support either V/F control or vector control; Above 3.7KW (including) is vector control and can add PG card when customer tell they need.

Optimized Structural Design

Size is reduced, saving the installation space for users;

Below 2.2KW (including) support side-by-side rail mounting.

Various in Product Configuration and Interface, Powerful in Function

With standard built-in 485 communication interface and various input terminals and various output terminals;

Above 7.5KW (including) has external keyboard interface to better suit the applications;

30KW (including) ~ 160KW (including) inverter can optionally (just have when customer tell they need) be equipped with built-in DC reactor to improve its power factor; Below 37KW (including) with standard built-in brake unit; 45KW(including)~110KW(including), optional (just have when customer tell they need) built-in brake unit.


Various Installation Methods


Below 5.5KW (including) support rail mounting and wall mounting;

7.5KW (including) -160KW (including) support wall-mounting;

Above 185KW (including) support floor mounting and wall mounting.

Easy to Use and Maintain

The fan can be disassembled and assembled independently for easy maintenance;

Optional normal LED external keyboard and LCD keyboard (above 7.5KW (including)) to meet different application needs.

Integrate Various Product Features to Meet Diverse Application Needs

Simple PLC, multi-speed control, built-in PID, torque control, multi-point V/F curve,inverter not stop work when face instant power failure, etc.

Item AT20

Basic function

Control Mode

V/F control

Sensorless flux vector control (SVC)(Above 3.7K)

Close-loop vector control (FVC)(Above 3.7KW)

Maximum frequency


Carrier frequency


The carrier frequency is automatically adjusted based on the load features.

Input frequency resolution

Digital setting:0.01Hz

Analog setting: Maximum frequency x 0.025%

Start torque

G Type:0.5Hz/150%(SVC);

P Type:0.5Hz/100%

Speed range

1:100 (SVC)

Speed stability accuracy

±0.5% (SVC)

Overload capacity

G Type:60s for 150% of the rated current,

3s for 180% of the rated current.

P Type:60s for 120% of the rated current,

3s for 150% of the rated current.

Torque boost


Customized boost: 0.1%~30.0%

V/F Curve

Straight-line V/F curve

Multi-point V/F curve

N-power V/F curve (1.2-power, 1.4-power, 1.6-power,

1.8-power, square)

V/F separation

2 types: complete separation; half separation

Ramp Mode

Straight-line ramp.

Four groups of acceleration/deceleration time with the range of 0.00`6500.0s

DC braking

DC braking frequency:0.00Hz~Maximum frequency

Braking time:0.0s~36.0s

Braking action current value:0.0%~100.0%

JOG control

JOG frequency range:0.00Hz~50.00Hz。

JOG acceleration/deceleration time: 0.0s~6500.0s。

Simple PLC、Multiple preset speeds

It implements up to 16 speeds via the simple PLC function or combination of terminal states

Onboard PID

It realizes process-controlled closed loop control system easily

Auto voltage regulation(AVR)

It can keep constant output voltage automatically when the mains voltage changes

Overvoltage/overcurrent stall control

The current and voltage are limited automatically during the running process so as to avoid frequent tripping due to over voltage/over current

Rapid current limit

It helps to avoid frequent over current faults of the AC drive.

Torque limit and control

It can limit the torque automatically and prevent frequent over current tripping during the running process. Torque control can be implemented in the FVC mode.

Individualized functions

High performance

Control of asynchronous motor are implemented through the high-performance current vector control technology

Rapid dip ride through

The load feedback energy compensates the voltage reduction so that the AC drive can continue to run for a short time

Rapid current limit

It helps to avoid frequent over current faults of the AC drive.

Timing control

Timing range: 0.0Min~6500.0Min

Communication methods

R S - 4 8 5


Command source

Operation panel/Control terminals/Serial communication port

You can perform switchover between these sources in various ways.

Frequency source

There are ten frequency sources.

Digital setting, analog voltage setting, analog current setting, pulse setting, serial port setting.

You can perform switchover in various ways.

Auxiliary frequency source

There are ten auxiliary frequency sources. It can implement fine tuning of auxiliary frequency and frequency synthesis.

Input terminal

Standard:4 digital input terminals(Below 5.5KW)/6 digital input terminals(Above 7.5KW)

1 analog input terminal(Below 5.5KW)/2 analog input terminals(Above 7.5KW);

1 voltage input (only support for 0~10V, above 7.5KW),1 voltage input(0~10V) or current input (4~20mA)

Output terminal

1 High-speed pulse output terminal (Open-collector)(Above 3.7KW)

1 replay output terminal (Below 5.5KW)/2 replay output terminals(Above 7.5KW)

1 analog output terminal(3.7KW~5.5KW)/2 analog output terminal(Above 7.5KW), Support for 4~20mA current output or 0~10V voltage output

Display and operation panel

LED display

It displays the parameters

Key locking and function selection

It can lock the keys partially or completely and define the function range of some keys so as to prevent mal-function.

Protection mode

Motor short-circuit detection at power-on, input/output phase loss protection, over current protection, over voltage protection, under voltage protection, overheat protection and overload protection.


Installation location

Indoor, free from direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip or salt.


Lower than 1000m

Ambient temperature

-10℃~+40℃( de-rated if the ambient temperature is between 40℃~50℃)


Less than 95%RH,without condensing)


Less than 5.9m/s2(0.6g)

Storage temperature