Gozuk - The Manufacturer of Variable Frequency Drive in China

GK3000 series Variable Frequency Drives (VFD) are manufactured by Shenzhen Gozuk Co., Limited in China, the VFD adopts advanced speed sensorless vector control technology to offer excellent control performance, enhances operation reliability and environment adaptability.

GK3000 VFD Capacity:

1/2 hp - 5 hp for single phase to three phase 220V
1 hp - 500 hp for three phase 380V

As one of the top VFD manufacturers in China, Gozuk drives are widely used in various applications, such as fans and pumps, industry washing machines, injection molding machines, textile machines, grinding machines, ball mill machines, HVAC system, constant pressure water supply system and lots of other applications which need VFD to vary motor speed.

Beyond China domestic market, Gozuk VFDs have been export to India, Pakistan, Turkey, Philippines, Thailand, Australia, South Africa, and much more countries.

GK 3000 series Variable Frequency Drive General Specifications

Items		Specifications
Input	Voltage / Frequency	Single phase 220V, three phase 200V, three phase 380V; 50Hz/60Hz
	Range	Voltage: ±20% voltage unbalance rate: <3%; frequency: ±25%
Output	Rated voltage	0~200V/220V/380V
	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
VFD Installation		Wall mounted

Contact us now to get a low cost VFD from manufacturer directly, fast shipping from China to global countries.