EN630 series mini high performance vector frequency inverter
Product brief

EN630 series mini high performance vector frequency inverter adopts 32-bit DSP (digital signal processor) hardware platform, inbuilt in PG card function, encoder inlet to terminal directly can achieve PG closed-loop vector control; It has advanced control algorithm, speed vector control and torque vector control mode available. It can achieve high precision control, fast response and good performance at low frequency, smart detection and good protection available, keypad with digital potentiometer to adjust speed and with copy function.

Typical applications

Widely applies to food processing, machinery manufacturing, wire drawing machine, printing machine, textile machine, cement processing, ceramic and medical device, metal processing and other small power drive in industrial automation field.

Product features

● PG vector control, vector control without PG, torque control without PG, PG torque control, open-loop V/F control mode available

 Customized V/F curve setting function

 Keypad copy function

 Encoder & pressure gauge disconnection detect function

 Inbuilt in PID control function

 Support multi-channel frequency setup

 I/O terminal programmable

● Jump frequency parameters for inhibition mechanical vibration

 Instant power off without halt function

 AVR output function

 Overload, under-load etc. various smart protection

Drop control function

● Speed tracking function

● Inbuilt PG card function

Application advantages


Mini size, easily installing, simple operation;

High integration, inbuilt in PG card function, encoder signal can inlet terminal directly.

Full smart detect, include smart PID feedback disconnection detect protection, encoder disconnection detect etc.

Good performance with self-learning function to achieve speed control and torque control, large torque under low frequency, fast response and high precision control.

Strong functions with communication, speed tracking, simple PLC, customized V/F curve, constant pressure water supply, swing frequency function, fixed length function, constant torque output, drop function, analog non-linear given adjust, keypad copy function etc.

Performance Index


Item description


Rated volt., frequency

1 phase 220V class: 1 phase 220V, 50Hz/60Hz

3 phase 380V class: 3 phase 380V, 50Hz/60Hz

Allowed volt. range

1 phase 220V class: 200~260V

3 phase 380V class: 320~460V



0    Input volt


0    600Hz

Overload capacity

150% of rated current for 1 minute

Control performance

Control mode

Vector control  (Without PG),Vector control  (with PG), Open-loop V/F control, Torque control  (without PG),Torque control  (with PG)

Speed stability


±0.5% rated synchronous speed    without PG vector control)

±0.1% rated synchronous speed    with PG vector control)  

±1% rated synchronous speed    V/F control   );

Speed range

1:2000    with PG vector control    ;

1:100    without PG vector control    ;

1:50    V/F control    ;

Start-up torque

1.0Hz:150% rated torque    V/F control    :

0.5Hz:150% rated torque(without PG vector control):

0Hz:180% rated torque    with PG vector control    :

Speed fluctuation

±0.3% rated synchronous speed    without PG vector control    :

±0.1% rated synchronous speed    with PG vector control    :

Torque control


±10% rated torque    without PG vector control, without PG torque control    :

±5%  rated torque    with PG vector control, with PG torque control  

Torque response

≤20ms    without PG vector control    ;

≤10ms    with PG vector control    ;

Frequency precision

Digital setup: max. frequency×±0.01%  

Analog setup: max. frequency×±0.5%

Frequency resolution

Analog setup

0.1% of max. frequency

Digital setup precision


Exterior impulse

0.1% of max. frequency

Torque boost

Automatic torque boost, manual torque boost 0.1    12.0%

V/F curve

(volt. frequency characteristic)


Set rated frequency arbitrarily at range of 5    650Hz,can choose constant torque, degressive torque 1,degressive torque 2,degressive torque 3,user defined V/F curve in total 5 kinds of curve


and  deceleration curves

2 modes: linear acceleration and deceleration and “S” acceleration and deceleration; 15 types of acceleration and deceleration time, the time unit is optional(0.01s,0.1s,1s), the max is 1000 minutes


Power consumption brake

Built-in brake unit, brake resistor added between (+) and PB

DC brake

Optional start-up and stop, action frequency 0    15Hz,action current 0    100%,action time 0    30.0s


JOG frequency range: 0.00–upper limit frequency

JOG acceleration/deceleration time: 0.0–6 0 00.0s

Multi steps speed running

Multi steps speed operation can be achieved by interior PLC or control terminal. Total 15sections, which has their own Acc. and Dec. time. The interior PLC supports power down save.

Interior PID controller

Consist closed-loop system easily

Automatic energy-saving operation

Optimize automatically V/F curve base on condition of loading, achieving energy-saving operation.

Automatic voltage regulate(AVR)

Automatically keep output voltage constant, when on-grid voltage vary

Automatic current limiting

Automatic current limiting when operation, in case of the malfunction of frequent over current causing trip

Carrier modulation

Modulate carrier automatically based on the characteristic of load.

Speed tracking restart

Make the rotating motor smooth start without shocking

Running function

Running order specified channel

Keypad specified, control terminal specified, communication specified, which can be changed by many means

Running frequency specified channel

Main and side specified, realizing a main adjustment and fine control. Digital, analog, impulse, pulse-width, communication specified and other specified can make switch come true

Binding function

Running order channel and frequency specified channel can be bond arbitrarily, change synchronously



Output character



Digital input channel

7 digital input (DI) terminals , the max frequency is 1KHZ, one of which support up to 50KHz.

Analog input channel

2 analog input (AI) terminal, AI1 can choose 4    20mA or 0    10V input    AI2 is differential input    4    20mA or -10   10V input is available

Pulse output channel

Impulse square wave signal output of 0.1    20KHZ, can realize output of physical parameter such as setting frequency, output frequency etc.

Analog output channel

1 analog signal output, AO can be 4~20mA or 0~10V,can realize output of physical value such as setting frequency, output frequency etc.

Unique feature

Rapid current limit

Limit inverter over current to the greatest degree, making it running reliably

Monopulse control

Suitable for the inverter with one key that controls the inverter on or off, which is simple and reliable.

Fixed length control

Can realize fixed length control

Timing control

Time range: 0.0–6500.0 minutes

Virtual terminal

Five groups of virtual DI/D O, can realize simple logic control.


LED display

The parameters like setting frequency, output frequency, output voltage, output current can be displayed

Lock the button

Realizing lock all buttons or some parts buttons

Protection function

Motor short-circuit detection at power-on, input/output phase loss protection, over - current protection, overvoltage protection, under- voltage protection, overheat protection and overload protection , relay protection, terminal protection and non-stop protection when power off.


Use ambient

Indoor, without direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip or salt.


Less than 1000 meters. ( E very 1 0 00m above 1000m, derat ing 10%)

Ambient temperature

-10°C to +40°C (derat ing if the ambient temperature is between 40°C and 50°C)

Ambient humidity

Less than 95%RH    without condenses


Smaller than5.9m/s  ² (0.6g)

Storage temperature

-40      +70  


Defending grade


Cooling mode

Forced air cooling

Mounting mode

Wall hanging

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Volume Type

Outer size of keypad and fixing box (unit: mm)


Installation dimension


Installation dimension

Inverter type W (mm) H (mm) D (mm) D1 (mm) A (mm) B (mm) Fix hole(mm) Gross weight (kg) 
EN630/EN650A-2S0004 89 148.5 112.5 124.7 74 138 5 1
EN630/EN650A-2S0007 1.1
EN630/EN650A-2S0015 1.2
EN630/EN650A-4T0007 1.1
EN630/EN650A-4T0015 1.1