AC VFD Variable Frequency Drives 0.75KW Inverter PI Tuning Pure Sine Wave

Type  VB3-2_ _ _

0P7

Output

Matched motor (KW)

0.75

Rated output current (A)

4.7

Rated voltage (V)

AC 220

Frequency range (Hz)

0~500

Frequency resolution (Hz)

0.01

Overload ability

150%Rated Current for 1 minutes,180% Rated Current for 1 second

Input

Rated voltage and frequency

Single phase 220V; 50/60Hz

AC voltage permit fluctuate range

Voltage: -20% ～ +20％ voltage unbalance rate <3%

Frequency fluctuate Range

Frequency: ±5％

Power capacity(KVA)

1.5

Main

Function

Modulation mode

Space Optimized, voltage vector SVPWM modulation

Frequency precision

Digital Setting: max frequency×±0. 01%；

Analog Setting: max frequency×±0.2%

Frequency resolution

Digital Setting:0.01Hz；

Analog Setting: max frequency×0.1%

Start frequency

0.40Hz～20.00Hz

Torque boost

Auto torque boost, manual torque boost 0.1%～30.0%

V/FFFFF curve

Five modes: constant torque V/F curve, 1 V/F curve mode by user and 3 kinds of torque-derating modes (2nd power, 1.7th power, 1.2nd power)

Acceleration/Deceleration curve

Two modes: linear Acceleration/Deceleration, S curve Acceleration/Deceleration；seven kinds of Acceleration/Deceleration time (Maximum:6000 minutes) and unit(minute or second) is selectable.

DC braking

Initial frequency of DC braking:0~15.00Hz

Braking time:0~60.0 s     

Braking current:0~80%

Power consumption braking

Power consumption unit inside, can be connected with external braking resistor

Jog

Range of jog frequency:0.1Hz~50.00Hz, Acceleration/Deceleration time of jog operation 0.1~60.0s

Internal PI

Be able to form close loop control system easily

Multi-step

speed running

Multi-step speed running can be realized by internal PLC or control terminals

Textile wobble frequency

Adjustable preset frequency and center frequency

Auto voltage regulation

(AVR)

When the power system voltage changes, maintain the constant of output voltage

Auto energy saving mode

V/F curve is optimized automatically according to the load condition to realize energy saving operation

Auto current limiting

running current is limited automatically to avoid  trip caused by over-current

Fix-length control

The frequency inverter will stop when reaching the fixed length

Communication