KE300A-04 Series Single-Phase Motor Inverter

KE300A-04 single-phase motor series special inverter, based on the world's leading speed sensorless high-performance vector core control algorithm, combined with the unique start-up and control requirements of single-phase motor, using a new magnetic flux vector control technology to achieve true The two-phase orthogonal 90-degree magnetic flux vector control can be used without removing the capacitor.

This series of products has the characteristics of large starting torque and high efficiency of the whole machine, and has added some special functions of single-phase motors (such as current suppression, voltage suppression, jitter suppression, etc.)

The user does not need to make too many complicated settings when using it, but only needs to make simple parameter modification according to the actual use site.

It can be widely used in fan, water pump, power tool and other single-phase asynchronous motor drive applications.

Features of KE300A-04 Series single phase motor inverter

(1) It is specially tailored for frequency drive for single phase motor. It is easy to install and debug, and the motor is not used for any modification to achieve stepless speed regulation.

(2) DSP high-speed control core

The control core adopts the high-speed digital processor DSP produced by TI (Texas Instruments).

(3) High starting torque and fast dynamic response

(4) Low motor noise and low temperature rise

(5) Strong instantaneous overcurrent capability

(6) Non-stop function when instantaneous power failure

(7) Robust EMC design

(8) Modular design, very flexible configuration

(9) Excellent robust performance can ensure that the load can start and stop quickly;

(10) Fast current limit function can quickly limit the current within the protection point, reducing the probability of frequent overcurrent alarm failure.

(11) High power factor output

(12) The built-in PID regulator can easily form a closed-loop control system for process quantities such as temperature, pressure, and flow.

(13) Adopt advanced power module drive mode, which can effectively suppress harmonics and eliminate interference to peripheral control loops and sensors during inverter operation.

(14)Perfect protection functions include overvoltage / undervoltage protection, overheat protection, ground fault protection, short circuit protection, overcurrent protection, overload protection, etc.

Specifications of KE300A-04 Series Single-Phase Motor Inverter

Item Technical Index Specification

Input Input voltage 1AC 220V±15%

Input frequency 47~63Hz

Output Output voltage 0～rated input voltage

Output frequency V/f control: 0~3000Hz

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 150% 60s, 180% 10s, 200% 3s

Starting torque 1Hz/150% (V/f)

Speed adjustment range 1: 50(V/f)

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

Frequency accuracy Digital setting: 0.01HzAnalog 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: 5 on-off inputs, 1 high-speed pulse input1 programmable AI: AI1: 0～10V or 0/4～20mA

Output terminals 1 programmable open collector output: 1 analog output (open collector output or high-speed pulse output)1 relay output1 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

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

Humidity 90%RH or less (non-condensing)

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

Storage temperature -20℃～60℃

Storage environment Indoor, no direct sunlight, dust, corrosive gas, flammable gas, oil mist, steam, dripping water, salt, vibration

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