GK800 High Performance Closed-loop Vector Control VFD Drives
GK800 High Performance Closed-loop Vector Control VFD Drives
GK800 Series High Performance VFD Variable Frequency Drives,Website:, adopting most advanced close-loop vector control technology, are able to perform precise control on both asynchronous motors and permanent magnet synchronous motors. GK800 series, one of the real drives leaders, are superb in demanding applications with excellent performance no matter in speed control, torque control, position control, field weakening control, or response time, and so on.
1. Distinctive advantages of GTAKE close-loop vector control VFD Variable Frequency Drive
Based on the top software and hardware elite, modern and scientific producing workmanship, rigorous quality control systems and management team, GTAKE VFD Variable Frequency Drives have many advantages, some of which are listed as below:
• Apply to asynchronous AC motor and permanent magnet synchronous AC motor;
• Starting torque:180% at 0.25Hz (SVC pattern), 200% at 0Hz (VC pattern);
• Speed adjustable range: 1:200 (SVC pattern), 1:1000 (VC pattern);
• Speed accuracy: +/-0.2% (SVC pattern), +/-0.02% (VC pattern);
• Over load capability: 150% 1minute, 180% 10s, 200% 0.5s;
• Abundant frequency command sources;
• Diverse input and output terminals;
• Ambient temperature: -10°C~50°C;
• High precise torque constraint, process PID control, simple PLC, wobble frequency control, contracting brake control, field weakening control, all sides protection, etc.
• Online and offline autotune of motor parameters can both performed;
• Extremely short-time acceleration can be performed without any trip, such as 0.1s or 0s from 0Hz to 50Hz;
• No derating ambient temperature: -10-50 centigrade;
• Customized products and services are also welcome;
• Flexible command sources, parameters setting, and all sided equipment protection function automatically;
• The malfunction ratio is lower than 1% within warranty period, based on the statistics.
2. Information of Product Model
Product model and technical data
Model
Power Rating (kW)
Rated Output Current (A)
Rated Input current (A)
Applicable motor (kW)
Brake unit
GK800-4T2.2B
2.2
5.5
9.2
2.2
Built-in
GK800-4T3.7B
3.7
9
14.9
3.7
GK800-4T5.5B
5.5
13
21.5
5.5
GK800-4T7.5B
7.5
17
27.9
7.5
GK800-4T11B
11
24
39
11
GK800-4T15B
15
30
50.3
15
GK800-4T18.5(B)*
18.5
39
60
18.5
Built-in optional
GK800-4T22(B)*
22
45
69.3
22
GK800-4T30(B)*
30
60
86
30
GK800-4T37(B)*
37
75
104
37
GK800-4T45(B)*
45
91
124
45
GK800-4T55
55
112
150
55
Externally mounted when needed
GK800-4T75
75
150
201
75
GK800-4T90
90
176
160**
90
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
** means GK800-4T110 or above is provided with an external-mounted DC reactor in shipment as default1AC/3AC 208V/220V/230V 50/60Hz -10%~10%, 50Hz/60Hz -5%~5%
Model
Power Rating (kW)
Rated Output Current (A)
Applicable motor (kW)
Brake unit
GK800-2T2.2B
2.2
10
2.2
Built-in
GK800-2T3.7B
3.7
16.5
3.7
GK800-2T5.5B
5.5
24
5.5
GK800-2T7.5B
7.5
30
7.5
GK800-2T11(B)
11
45
11
Built-in optional
GK800-2T15(B)
15
60
15
GK800-2T18.5(B)
18.5
73
18.5
GK800-2T22(B)
22
96
22
GK800-2T30
30
112
30
Externally mounted when needed
GK800-2T37
37
144
37
GK800-2T45
45
176
45
GK800-2T55
55
210
55
GK800-2T75
75
288
75
GK800-2T90
90
310(350)
90
GK800-2T110
110
415
110
3.Technical Features of GK800 VFD Variable Frequency Drive
Technical features of GK800 VFD Variable Frequency Drive
Power input
Rated input voltage
3-phase AC208V/220V/230V/240V/380V/400V/415V/440V/460V/480V
Rated input current
See Section 2.3 in the User Manual
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 in the User Manual
Rated current (A)
See Section 2.3 in the User Manual
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
Accel/Decel time
0.00~60000s
Carrier frequency
0.7kHz~16kHz
Frequency command sources
Digital setting + keypad ∧/∨
Digital setting + terminal UP/DOWN
Communication
Analog setting (AI1/AI2/AI3)
Terminal pulse setting
Motor started methods
Started from starting frequency
DC brake then started
Speed search started
Motor stopped methods
Ramp to stop
Coast to stop
Ramp to stop + DC brake
Basic functions
Dynamic brake capacity
Brake unit threshold voltage: 650V~750V; service time: 0.0~100.0s; brake units of GK800-4T45 and below are built in or can be built in. See table 2-1
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 terminal,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
Environment
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
-10℃~50℃
Relative humidity
0~95%, no condensation
Vibration
Less than 5.9m/s2 (0.6g)
Storage temperature
-40℃~+70℃
Others
Efficiency at rated Amps
7.5kW and below: ≥93%
11~ 45kW: ≥ 95% 5kW and above: ≥98%
Installation
Wall-mounted
IP grade
IP20
Cooling method
Fan cooled
4.Applications of GTAKE VFD Variable Frequency Drives (VFDs)
Hoists and Cranes
Tower cranes
Sufficient start torque, fast response ; Two motor profiles programmable; Contracting brake control;
Overall protection.
Bridge cranes
Port cranes
Construction cranes
Passenger elevators
Cargo elevators
Winches
Mine hoists
Metal Processing
High-speed engraving and milling machines
Adequate output torque at low frequency;
Position control modes programmable;
High precision speed control;
Overall protection;
Abundant interfaces and parameter copy function.
Machining centers
Deep-hole drilling machines
Lathes
Milling machines
Grinding machines
Winding and Unwinding
Printing machines
Intelligent process control;
Specific functions;
Molding control;
Overall protection;
Abundant interfaces and parameter copy function.
Packing machine s
Plastic puffing machines
Wire drawing machines
Oil Pump Servo Drives
Injection molding machines
Precise speed,low current;
Precise ,fast responded PID control;
Hardware and structure.
Die casing machines
Shoemaking machines
Blowing moulding machines
Construction machineries
5. With great advantages of high performance, strong starting torque, and strong overload capacity, multiple control techniques, accurate speed control, high reliability, excellent after-sales service, and competitive price, GTAKE provides highly cost-effective VFD Variable Frequency Drives for distributors and agents around the world!
Leave me an inquiry for more details like catalog, pricelist, and distributorship~!
6.Comparison of GTAKE brand AC Motor Drives and other common brands
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