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Variable Frequency Drive for Three Phase Power System

GK3000 series Three Phase Variable Frequency Drives are high performance, current vector and low noise VFDs. ATO 3-phase VFD is ideal for a wide range of industrial applications requiring speed variation and control, such as general fan and pump type load, and can also be widely used in automation equipment control of textile, stone-sawing, air pressure, oil field, coal mine, etc. It can also provide integrated solutions for ball mill, injection molding, intelligent motor and other applications.

Features

Sensorless vector control (SVC), the optimized low frequency torque boost.
Unique Sink design and advanced switching mode power supply technology.
Circuit protective technologies and new component improve the anti-interference ability.
Preset frequency, the adjustable central frequency for swing frequency control.
Built-in PLC or terminals implement multi-speed operation.
Control mode: Optimized SVPWM.
Automatic energy saving, optimize V/F curve to save the energy.
Switch input channel, Forward and Reverse instruction, 8 channels programmable switch input, which can be set respectively35 kinds of functions.

Three Phase VFD Capacity: 1 hp - 500 hp, three phase 50/60Hz 208V, 220V, 240V, 380V, 400V, 415V, 440V, 460V, 480V.
Contact us now to purchase high reliability and low cost ATO Variable Frequency Drive!

General Specifications

Items Specifications

Input Voltage / Frequency 3AC 380~440V +15%; 50/60Hz

Range Voltage: ±20% voltage unbalance rate: <3%; frequency: ±25%

Output Rated voltage 0~rate input voltage

Frequency range 0Hz~400Hz

Frequency resolution 0.01Hz

Overload ability 150% rated current for 1 minute, 180% rated current for3 seconds

Control function Modulation modes Optimized space voltage vector SVPWM modulation

Control mode Sensorless vector control (with optimal low frequency, dead time compensation)

Frequency precision Digital setting: The highest frequency ×± 0.01%
Analog setting: The highest frequency ±0.2%

Frequency resolution Digital setting: 0.01Hz
Analog setting: The highest frequency× 0.1%

Start frequency 0.40Hz~20.00Hz

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

V/F curve Five ways: constant torque V/F curve, 1 kind of user defined V/F curve, 3 kinds of down torque curve(2.0/1.7/1.2 times the power)

Acc./Dec. curve Two ways: linear Acc./Dec., S-curve Acc./Dec.;
7 kinds of Acc./Dec. time, time unit (minute/second) optional, max. Time: 6000 minutes.

DC braking DC braking start frequency: 0~15.00Hz
braking time: 0~60.0 seconds
braking current: 0~80%

Energy consuming braking Energy consuming braking unit built-in, external braking resistor can be

Jog running Jog frequency range: 0.1Hz~50.00Hz, JOG Acc./Dec. time: 0.1~60.0s

PI built-in Easily constitute a close loop control system

Multi-stage speed running Multi-stage speed running available through built-in PLC or control terminals

Textile swing frequency Swing frequency available with preset and center frequency adjustable

Auto voltage regulation When the grid voltage changes, to maintain constant output voltage

Auto energy saving running Saving energy by auto optimizing V/F curve according to the load

Auto current limiting Auto current limiting to prevent frequent over current fault trip

Fixed-length control VFD stops when reaches the preset length

Communication RS485 standard communication port available, support MODBUS communication protocol of ASCII and RTU, master-slave multi-machine interaction function available

Running function Running command channel Control panel, control terminal, serial port 3 channels switchable

Frequency setting channel Control panel potentiometer: ▲,▼control panel keys, function code digital, serial port, terminal up/down, analog voltage, analog current, pulse, combination setting, all channels switchable

Switch input channel FWD/REV command: 8 channels programmable switch inputs, 35 kinds of function can be set separately

Analog input channel 4~20mA and 0-10V 2 optional analog inputs

Analog output channel 4~20mA or 0~10V optional, setting frequency and output frequency , etc. can be output

Switch/pulse output channel Programmable open collector output: relay output, 0~20KHz pulse output.

Control panel LED digital display Display setting frequency, output voltage, output current, etc.

External meter display Display output frequency, output current, output voltage, etc.

Key lock All the keys can be locked

Parameter copy Function code parameters are able to be copied between VFDs when use remote control panel.

Protection function Over current protection, over voltage protection, under voltage protection, overheating protection, over load protection, etc.

Optional parts Braking unit, remote control panel, cable, panel mounting feet, etc.

Environment Environment Indoors, free from direct sunlight, dust, corrosive gas, oil mist, steam, water dropper salt, etc.

Altitude Lower than 1000m (derating is necessary above 1000m)

Ambient temperature －10℃~＋40℃

Humidity <90%RH, no condensation

Vibration Lower than 5.9m/s (0.6g)

Storage temperature －20℃~＋60℃

Structure Protection level IP20 (In the selection of state display unit or the keyboard state)

Cooling Forced air cooling

Items		Specifications
Input	Voltage / Frequency	3AC 380~440V +15%; 50/60Hz
Input	Range	Voltage: ±20% voltage unbalance rate: <3%; frequency: ±25%
Output	Rated voltage	0~rate input voltage
	Frequency range	0Hz~400Hz
	Frequency resolution	0.01Hz
	Overload ability	150% rated current for 1 minute, 180% rated current for3 seconds
Control function	Modulation modes	Optimized space voltage vector SVPWM modulation
	Control mode	Sensorless vector control (with optimal low frequency, dead time compensation)
	Frequency precision	Digital setting: The highest frequency ×± 0.01% Analog setting: The highest frequency ±0.2%
	Frequency resolution	Digital setting: 0.01Hz Analog setting: The highest frequency× 0.1%
	Start frequency	0.40Hz~20.00Hz
	Torque boost	Auto torque boost, manual torque boost 0.1%~30.0%
	V/F curve	Five ways: constant torque V/F curve, 1 kind of user defined V/F curve, 3 kinds of down torque curve(2.0/1.7/1.2 times the power)
	Acc./Dec. curve	Two ways: linear Acc./Dec., S-curve Acc./Dec.; 7 kinds of Acc./Dec. time, time unit (minute/second) optional, max. Time: 6000 minutes.
	DC braking	DC braking start frequency: 0~15.00Hz braking time: 0~60.0 seconds braking current: 0~80%
	Energy consuming braking	Energy consuming braking unit built-in, external braking resistor can be
	Jog running	Jog frequency range: 0.1Hz~50.00Hz, JOG Acc./Dec. time: 0.1~60.0s
	PI built-in	Easily constitute a close loop control system
	Multi-stage speed running	Multi-stage speed running available through built-in PLC or control terminals
	Textile swing frequency	Swing frequency available with preset and center frequency adjustable
	Auto voltage regulation	When the grid voltage changes, to maintain constant output voltage
	Auto energy saving running	Saving energy by auto optimizing V/F curve according to the load
	Auto current limiting	Auto current limiting to prevent frequent over current fault trip
	Fixed-length control	VFD stops when reaches the preset length
	Communication	RS485 standard communication port available, support MODBUS communication protocol of ASCII and RTU, master-slave multi-machine interaction function available
Running function	Running command channel	Control panel, control terminal, serial port 3 channels switchable
	Frequency setting channel	Control panel potentiometer: ▲,▼control panel keys, function code digital, serial port, terminal up/down, analog voltage, analog current, pulse, combination setting, all channels switchable
	Switch input channel	FWD/REV command: 8 channels programmable switch inputs, 35 kinds of function can be set separately
	Analog input channel	4~20mA and 0-10V 2 optional analog inputs
	Analog output channel	4~20mA or 0~10V optional, setting frequency and output frequency , etc. can be output
	Switch/pulse output channel	Programmable open collector output: relay output, 0~20KHz pulse output.
Control panel	LED digital display	Display setting frequency, output voltage, output current, etc.
	External meter display	Display output frequency, output current, output voltage, etc.
	Key lock	All the keys can be locked
	Parameter copy	Function code parameters are able to be copied between VFDs when use remote control panel.
Protection function		Over current protection, over voltage protection, under voltage protection, overheating protection, over load protection, etc.
Optional parts		Braking unit, remote control panel, cable, panel mounting feet, etc.
Environment	Environment	Indoors, free from direct sunlight, dust, corrosive gas, oil mist, steam, water dropper salt, etc.
	Altitude	Lower than 1000m (derating is necessary above 1000m)
	Ambient temperature	－10℃~＋40℃
	Humidity	<90%RH, no condensation
	Vibration	Lower than 5.9m/s (0.6g)
	Storage temperature	－20℃~＋60℃
Structure	Protection level	IP20 (In the selection of state display unit or the keyboard state)
Structure	Cooling	Forced air cooling