Gk800 High Performance Frequency Inverter for CNC Application

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Company Profile

Jiangsu GTAKE Electric Co., Ltd.

By certification [File Integrity]

Contact:Mr. Richard Fan(Mr.)  





Website: http://www.chinaoutdo.com/com/gtakeinverter/

Product details

GTAKE GK800 high performance frequency inverter Advanced Vector Control AC Drive

1. GK800 high performance frequency inverter  

2. Why choose GTAKE Frequency Inverters ? 

3 . Technical Features of GK800 frequency inverters 
Table 1 Technical Features of GK800 
Power input Rated input voltage 3-phase AC208V/AC220V/AC230V/AC240V/AC380V/AC400V/AC415V/AC440V/AC460V/AC480V
Rated input current See Section 2.3
Frequency 50Hz/60Hz, tolerance ±5%
Allowable range of voltage Continuous voltage fluctuation ±10%, short fluctuation -15%~+10%, i.e. 323V~528V;
Voltage out-of-balance rate <3%, distortion rate as per the requirements of IEC61800-2
Power output Applicable motor (kW) See Section 2.3
Rated current (A) See Section 2.3
Output voltage (V) 3-phase: 0~ rated input voltage, error < ±3%
Output frequency (Hz) 0.00~ 600.00Hz; unit: 0.01Hz
Overload capacity 150% - 1min; 180% - 10s; 200% - 0.5s
Control characteristics V/f patterns V/f control
Sensor-less vector control 1
Sensor-less vector control 2
Close-loop vector control (including position control)
Speed range 1:100 (V/f control, sensor-less vector control 1)
1:200 (sensor-less vector control 2)
1:1000 (close-loop vector control)
Speed accuracy ±0.5% (V/f control)
±0.2% (sensor-less vector control 1 & 2)
±0.02% (close-loop vector control)
Speed fluctuation ±0.3% (sensor-less vector control 1 & 2)
±0.1% (close-loop vector control)
Torque response < 10ms (sensor-less vector control 1 & 2)
< 5ms (close-loop vector control)
Torque control accuracy ±7.5% (sensor-less vector control 2)
±5% (close-loop vector control)
Starting torque 0.5Hz: 180% (V/f control, sensor-less vector control 1)
0.25Hz: 180% (sensor-less vector control 2)
0Hz: 200% (close-loop vector control)
Positioning accuracy ±1 line pulse
Basic functions Start frequency 0.00~ 600.00Hz
Decel time
Carrier frequency 0.7kHz~16kHz
Frequency command sources Digital setting + keypad ∧/∨
Digital setting + terminal UP/DOWN
Analog setting (AI1/AI2/AI3)
Terminal pulse setting
Motor started methods Started from starting frequency
DC brake then started
Flying start
Motor stopped methods Ramp to stop
Coast to stop
Ramp to stop + DC brake
Basic functions Dynamic brake capacity Brake units of GK800-4T75 and below are built in or can be built in. See table 2-1
Brake unit threshold voltage: 650V~750V
Service time: 0.0~100.0s
DC brake capacity DC brake start frequency: 0.00~600.00Hz
DC brake current: 0.0~100.0%
DC brake time: 0.0~30.00s
Input terminals 7 digital inputs, one of which can be used for high-speed pulse input. Compatible with active open collectors NPN, PNP and dry contact input.
3 analog inputs, one of which supports voltage input only, and the other two are voltage/current programmable.
Output terminals One high-speed pulse output terminal, 0~50kHz square signal; can output command frequency, output frequency and so forth
One digital output terminal
Two relay output terminals
Two analog output terminals, voltage/current programmable; can output command frequency, output frequency and so forth
Encoder signal terminal Compatible with 5V/12V encoder
Compatible with different types of encoder signal input, such as open collector, push-pull and differential, etc.
Featured functions Parameter copy, parameter backup, common DC bus, free switchover between two motors' parameters, flexible parameter displayed & hidden, various master & auxiliary command and switchover, reliable speed search started, a variety of Accel/Decel curves programmable, automatic correction of analog, contracting brake control, 16-step speed control programmable (2 steps support flexible frequency command), wobble frequency control, fixed length control, count function, three faults recorded, over excitation brake, over voltage stall protection programmable, under voltage stall protection programmable, restart upon power loss, skip frequency, frequency binding, four kinds of Accel/Decel time, motor thermal protection, flexible fan control, process PID control, simple PLC, multi-functional key programmable, droop control, asynchronous and synchronous motor parameter identification, field-weakening control, high-precision torque control, V/f separated control, torque control at sensor-less vector control, torque control at close-loop vector control, two encoder signal inputs (support incremental, UVW hybrid and resolver, etc.), flexible deceleration ratio control, zero servo, motor spindle orientation, simple feed forward control, pulse train position control
Protection function Refer to Chapter 7 - Troubleshooting
Place of operation Indoors, no direct sunlight, free from dust, corrosive gases, flammable gases, oil mist, water vapor, water drop and salt, etc.
Altitude 0~2000m
De-rate 1% for every 100m when the altitude is above 1000 meters
Ambient temperature -10ºC~40ºC. The rated output current should be de-rated 1% for every 1ºC when the ambient temperature is 40ºC~50ºC
Relative humidity 5~95%, no condensation
Vibration Less than 5.9m/s2 (0.6g)
Storage temperature -40ºC~+70ºC
Others Efficiency at rated Amps 7.5kW and below: ≥93%
11~ 45kW: ≥ 95% 55kW and above: ≥98%
Installation 560kW and 630kW are cabinet type,
the others are wall-mounted 
IP grade IP20
Cooling method Forced air cooling 
4. GK800 Models
(1) GK800-2TB for single/ three-phase 200V applications
* For 200V level drives with higher power ratings (1.5kW and above), please don't hesitate to contact with GTAKE overseas sales team. 
(2) GK800-4TG/L for three-phase 400V applications
Table 2 Product model and technical data
Model Power Rating (kW) Rated Output Current (A) Rated Input current (A) Applicable motor (kW) Brake unit
GK800-4T1.5B 1.5 3.8 5.0 1.5 Built-in
GK800-4T2.2B 2.2 5.5 6.0 2.2
GK800-4T3.7B 3.7 9.0 10.5 3.7
GK800-4T5.5B 5.5 13 14.6 5.5
GK800-4T7.5B 7.5 17 20.5 7.5
GK800-4T11B 11 24 29 11
GK800-4T15B 15 30 35 15
GK800-4T18.5(B)* 18.5 39 44 18.5 Built-in optional
GK800-4T22(B)* 22 45 50 22
GK800-4T30(B)* 30 60 65 30
GK800-4T37(B)* 37 75 80 37
GK800-4T45(B)* 45 91 95 45
GK800-4T55(B)* 55 112 118 55
GK800-4T75(B)* 75 150 157 75
GK800-4T90 90 176 160** 90 Externally mounted when needed
GK800-4T110 110 210 192** 110
GK800-4T132 132 253 232** 132
GK800-4T160 160 310 285** 160
GK800-4T185 185 350 326** 185
GK800-4T200 200 380 354** 200
GK800-4T220 220 430 403** 220
GK800-4T250 250 470 441** 250
GK800-4T280 280 520 489** 280
GK800-4T315 315 590 571** 315
GK800-4T355 355 650 624** 355
GK800-4T400 400 725 699** 400
GK800-4T450 450 820 790** 450
GK800-4T500 500 860 835** 500
GK800-4T560 560 950 920** 560
GK800-4T630 630 1100 1050** 630
3. Applications
Generally Speaking, GTAKE has three main series, GK500, GK600 and GK800 series AC drives for general purposes or high-end applications. 
And actually, V/F, Sensor-less Vector Control, Closed-loop Vector Control mode can meet all kinds of applications. 

In the meanwhile, we have all kinds of dedicated variable frequency drives. Different series are dedicated for different purposes such as elevators, cranes, textile machines, wire-drawing machines and solar water pumps, etc.