KEWO 0.75KW AC drive frequency inverter 220V 240V for motor variable speed drive

Control mode

Control mode

SVC in open loop

V/F control

Close loop vector control

Starting torque

0.5Hz 180%

0.5Hz 150%

0.00Hz 180%

Speed adjust range

1:100

1:100

1:1000

speed stabilizing
precision

±0.02%

Torque precision

NO

NO

±5%

Motor type

General induction motor , permanent magnet synchronous motor*

Functin design

Highest frequency

General vector control :400Hz  V/f control : 4000Hz

frequency resolution

Digital setting: 0.01Hz  analog setting: maximum×0.025%

carrier frequency

0.5K ~ 16KHz, the carrier frequency can be adjust by temperature automatically

Frequency reference setting method

Digital of Control panel, analog AI1, AI2, potentiometer of control panel, UP/DN control, communication, PLC pulse frequency

Accel./decel. characteristic

Linear curve and S curve accel. /decel. mode, range of time: 0.0 to 65000S.

V/F curve

3 mode: linear, multiple points, N Power

V/F separation

2 times separation: totally separation, half separation

DC braking

DC braking frequency: 0.0 to 300Hz, DC braking current: 0.0% to 100%

Braking unit

Built in braking unit up to 15kw, optional is 18.5kw to 75kw, external built in for above 93kw.

Jog function

Job frequency range: 0.0 to 50.0Hz, the accel. and decel. time of Jog

Configuration PID

Easy to perform pressure, flow, temperature close loop control

PLC  multiple speed

To achieve 16 segment speed running through built in PLC or terminal control

Common Dc bus *

Multiple inverters use one DC bus for energy balance.

Auto voltage regulation (AVR)

Enable to keep output voltage constant when grid fluctuation

Over load tolerance capability

G type model: 150% rated current for 60s, 180% rated current for 2s,
P type Model: 120% rated current for 60s, 150% rated current for 3s.

tall control when over current, over voltage

Carry out limiting automation for running current, voltage to prevent over current, over voltage frequently

Fast current limit function

minimize the IGBT module broken to protect the inverter, maximum reduce the over current fault.

Torque limit and torque control

"Excavator" characteristics , torque limit automatically during motor running. Torque control is available in close loop vector control mode.

features

friendly interface

Display Hello when power on.

Multiple function key JOG button

It can set for Forward Jog, reverse Jog, forward/reverse switch

Timing control function

A total running time and total running time calculating

2 group motor parameters

To achieve two motor switching freely, control mode is selectable

Motor over heat protection

Accepting motor temperature sensor signal input via AI1 terminals.

Multiple kinds encoder *

Compatible collector, difference, and rotary transformer Encoder.

Command source

Control panel, control terminals, series communication, switch freely.

Frequency source

Digital setting, analog current/voltage, pulse setting, serial communication, main and auxiliary combination.

Protection function

Short circuit detect after power on, input/output phase missing, over voltage, over current, under voltage, over heat, over load protection.

Environment

Application site

Indoor, free of exposure to sunlight, no dusty, no corrosive, no inflammable gas, no oil and water vapor, and water dipping

Altitude

Lower 1000m

environment temperature

-10 ℃ ~ +40 ℃ , power derate for 40 ~ 50 ℃ , rated current derated 1% for 1 ℃ increasing.

humidity

Less than 95%, no water condense.

storage

-40 ~ +70 ℃