• KE330 Series Through Wall Mounted Inverter

KE330 Series Through Wall Mounted Inverter

KE330 Open Structure Inverter to meet the rapid development of market especially the demands of OEM customers, MICNO launched the new model "KE330 open structure frequency inverter", which equipped with the same function and performance as KE300 or KE600, only the structure design is changed into open structure instead of a close one. As its structure is open, this inverter does not qualify any waterproof and dustproof ability, which must be installed inside an electronic cabinet.

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Features of KE330 Series Through Wall Mounted Inverter

The KE330 open structure inverter consists of two parts: the movement and the radiator. 

Mainly targeted at the supporting market applications and OEM customers.

Technical Specifications of KE330 Series Through Wall Mounted Inverter


Input voltage

1AC 220V±15%,3AC 220V±15%,3AC 380V±15%,3AC 660V±15%

Input frequency



Output voltage

0~rated input voltage

Output frequency

V/f control:0~3000Hz;Sensorless vector control:0~300Hz



Control mode

V/f control    Sensorless vector control    Torque control

Operation command mode

Keypad control   Terminal control   Serial communication control

Frequency setting mode

Digital setting, analog setting, pulse frequency setting, serial communication setting, multi-step speed setting & simple PLC, PID setting, etc. These frequency settings can be combined & switched in various modes.

Overload capacity

G model: 150% 60s, 180% 10s, 200% 3s

P model: 120% 60s, 150% 10s, 180% 3s

Starting torque

0.5Hz/150% (SVC),1Hz/150% (V/f)

Speed adjustment range

1:100 (SVC),1:50(V/f)

Speed control precision


Carrier frequency

1.0--16.0kHz, automatically adjusted according to temperature and load characteristics

       Frequency accuracy

Digital setting: 0.01Hz Analog setting: maximum frequency * 0.05%

Torque boost

Automatically torque boost; manually torque boost: 0.1%~30.0%

              V/f curve

Three types: linear, multiple point and square type (1.2 power, 1.4 power, 1.6 power, 1.8 power, square)

Acceleration/decele ration mode

Straight line/S curve; four kinds of acceleration/deceleration time, range: 0.1s~3600.0s

DC braking

DC braking when starting and stopping

DC braking frequency:0.0Hz~maximum frequency, braking time: 0.0s~100.0s

Jog operation

Jog operation frequency: 0.0Hz~maximum frequency

Jog acceleration/deceleration time:0.1s~3600.0s

Simple PLC & multi-step speed operation

It can realize a maximum of 16 segments speed running via the built-in PLC or control terminal.

Built-in PID

Built-in PID control to easily realize the close loop control of the process parameters (such as pressure, temperature, flow, etc.)

Automatic voltage regulation

Keep output voltage constant automatically when input voltage fluctuating

Control Function

Common DC bus

Common DC bus for several inverters, energy balanced automatically

            Torque control

Torque control without PG

Torque limit

"Rooter" characteristics, limit the torque automatically and prevent frequent over-current tripping during the running process

Wobble frequency control

Multiple triangular-wave frequency control, special for textile

Timing/length/counting control

Timing/length/counting control function

Over-voltage & over-current stall control

Limit current & voltage automatically during the running process, prevent frequent over-current & over-voltage tripping

Fault protection function

Up to 30 fault protections including over-current, over-voltage, under-voltage, overheating, default phase, overload, shortcut, etc., can  record the detailed running status during failure & has fault automatic reset function

Input/output terminals

Input terminals

Programmable DI: 7 on-off inputs, 1 high-speed pulse input

2 programmable AI:  A12: 0~10V or 0/4~20mA

Output terminals

1 programmable open collector output: 1 analog output (open collector output or high-speed pulse output)

2 relay output

2 analog output: 0/4~20mA or 0~10V

Communication terminals

Offer RS485 communication interface, support MODBUS-RTU communication protocol

Human machine interface

LED display

Display frequency setting, output frequency, output voltage, output current, etc.

Multifunction key

QUICK/JOG key, can be used as multifunction key

Powerful PC control software

Micno host computer control software, support uploading, downloading and real-time display with PC  


Ambient temperature

-10℃~40℃, derated 4% when the temperature rise by every 1℃(40℃~50℃).


90%RH or less (non-condensing)


≤1000M: output rated power, >1000M: output derated

Storage temperature


Storage environment

Indoor, no direct sunlight, dust, corrosive gases, flammable gases, oil mist, steam, dripping, salt, vibration

Seletion Table of KE330 Series Through Wall Mounted Inverter

KE330 Series Through Wall Mounted Inverter

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