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Jiangsu GTAKE Electric Co., Ltd.

Frequency Inverter, AC Drive, Frequency Converter manufacturer / supplier in China, offering Gk800 High Performance Frequency Inverter for CNC Application, Gk500 Compact Size Frequency Inverter, Gtake Open-Loop AC Motor Drive for Crane and Hoist and so on.

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Gk800 High Performance Frequency Inverter for CNC Application

FOB Price: US $98 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $98/ Piece
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Port: Shenzhen, China
Production Capacity: 50000 PCS/Year
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: GK800 High Performance Series
  • Output Type: Triple
  • Switch Mode: PWM Control
  • Voltage of Power Supply: Low Voltage Variable-Frequency Drive
  • Nature of DC Power: Voltage Variable-Frequency Drive
  • Brand: Gtake
  • IGBT and DSP: Infineon and Taxas Instrument′s Latest IGBT & DSP
  • Control Technique: V/F, SVC1, SVC2, Vc
  • Torque Response: <10ms (SVC1, SVC2); <5s (Vc)
  • OEM Service: Available
  • Transport Package: Carton or Plywood Case
  • Origin: China
  • Application: High-performance Transducer, Three Phase Transducer, General Transducer, Single-phase Transducer, High Frequency Converter Transducer, Single or Three Phase Inverter
  • Principle of Work: V/F Control Transducer
  • Main Circuit Type: Voltage
  • Link of Transformation: AC/DC-AC Variable Frequency Drive
  • Function: High Performance
  • Certificate: ISO 9001-2008/Ts16949: 2009, Ce, RoHS
  • Starting Torque: 0.25Hz: 180% (SVC2), 0Hz:200% (Vc)
  • Overload Capacity: 150%-1min; 180%-10s; 200%-0.5s
  • Output Frequency: 0.00~600.00Hz; Unit: 0.01Hz
  • Trademark: GTAKE
  • Specification: CE RoHS
  • HS Code: 854409999
Product Description
GTAKE GK800 high performance frequency inverter Advanced Vector Control AC Drive

1.   GK800 high performance frequency inverter  Gk800 High Performance Frequency Inverter for CNC Application

2.  Why choose GTAKE Frequency Inverters ? 

Gk800 High Performance Frequency Inverter for CNC Application
Gk800 High Performance Frequency Inverter for CNC Application
3 .   Technical Features of GK800 frequency inverters 
Table 1 Technical Features of GK800 
Power inputRated input voltage3-phase AC208V/AC220V/AC230V/AC240V/AC380V/AC400V/AC415V/AC440V/AC460V/AC480V
Rated input currentSee Section 2.3
Frequency50Hz/60Hz, tolerance ±5%
Allowable range of voltageContinuous 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 outputApplicable 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 capacity150% - 1min; 180% - 10s; 200% - 0.5s
Control characteristicsV/f patternsV/f control
Sensor-less vector control 1
Sensor-less vector control 2
Close-loop vector control (including position control)
Speed range1:100 (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 torque0.5Hz: 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 functionsStart frequency0.00~ 600.00Hz
Decel time
Carrier frequency0.7kHz~16kHz
Frequency command sourcesDigital setting + keypad ∧/∨
Digital setting + terminal UP/DOWN
Analog setting (AI1/AI2/AI3)
Terminal pulse setting
Motor started methodsStarted from starting frequency
DC brake then started
Flying start
Motor stopped methodsRamp to stop
Coast to stop
Ramp to stop + DC brake
Basic functionsDynamic brake capacityBrake 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 capacityDC brake start frequency: 0.00~600.00Hz
DC brake current: 0.0~100.0%
DC brake time: 0.0~30.00s
Input terminals7 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 functionsParameter 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 functionRefer to Chapter 7 - Troubleshooting
Place of operationIndoors, no direct sunlight, free from dust, corrosive gases, flammable gases, oil mist, water vapor, water drop and salt, etc.
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 humidity5~95%, no condensation
VibrationLess than 5.9m/s2 (0.6g)
Storage temperature-40ºC~+70ºC
OthersEfficiency at rated Amps7.5kW and below: ≥93%
11~ 45kW: ≥ 95%      55kW and above: ≥98%
Installation 560kW and 630kW are cabinet type,
the others are wall-mounted 
IP gradeIP20
Cooling methodForced 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
ModelPower Rating (kW)Rated Output Current (A)Rated Input current (A)Applicable motor (kW) Brake unit
GK800-4T18.5(B)*18.5394418.5Built-in optional
GK800-4T9090176160**90Externally mounted when needed
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. 

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