Motor Speed Control Variable Frequency Drive
GK800 High Performance Variable Frequency Drive Inverter
Brand: GTAKE
Certificate: CE, RoHS
| VFDs Model | Power Rating | Input Voltage | Output FREQ | Type |
| GK620E series | 0.4kW-630kW | 208V~690V | 0.00-600.00Hz | DC/AC to AC inverters |
| 01 | Starting torque: 180% at 0.25Hz (sensor-less vector control 2), 200% at 0Hz (closed-loop vector control); |
02 | Speed adjustable range: 0-50Hz: 1:200 (sensor-less vector control 2), 1:1000 (closed-loop vector control); |
03 | Speed accuracy: +/-0.2% (sensor-less vector control 1&2), +/-0.02% (closed-loop vector control); |
04 | Speed fluctuation: +/-0.3% (sensor-less vector control 1&2), +/-0.1% (closed-loop vector control) |
05 | Torque response: less than 10ms (sensor-less vector control 1&2), less than 5ms (closed-loop vector control); |
06 | Over load capability: 150% 1minute, 180% 10 seconds, 200% 0.5 second, once every 10 minutes; |
07 | Output frequency: 0.00-600.00Hz, or customized like 1MHz; |
08 | Abundant frequency setting sources; |
09 | DC brake start frequency: any frequency in the range of 0Hz to 600.00Hz; |
10 | Diverse input and output terminals; |
11 | Ambient temperature: -10°C~50°C; |
12 | High precise torque limit, process PID control, simple PLC, wobble frequency control, mechanical brake control, field weakening control, all-side protection, etc. |
13 | Online and offline auto-tuning both available; |
14 | Extreme short-time acceleration can be operated without trip, such as 0.1s from 0Hz to 50Hz. |
| Mains Supply (R/L1,S/L2,T/L3) | |
| Supply voltage | 208-240V ±10% 380-480V ±10% |
| Power source frequency | 50 / 60 Hz ±5% |
| Displacement power factor (cos φ) | (> 0.98) |
| Output Data (U, V, W) | |
| Output voltage / frequency | 0-100% of supply voltage / 0.00-600.00 Hz or customized |
| Ramp time | 0.01-60000 S |
| Digital Input | |
| Programmable digital inputs | 7 (local), 9(extensible) |
| Logic | NPN or PNP |
| Voltage level | 10 - 30V |
| Pulse input | 1 (X7/DI) |
| Analog Input | |
| Analog inputs | 3 (local), 4 (extensible) |
| Modes | Voltage or current |
| Level | 0 to +10V, -10V to +10V, 0/4 to 20 mA (scalable) |
| Automatic correction | YES |
| Digital Output | |
| Programmable digital outputs | 2 |
| Voltage level at digital output | 0 - 24 V |
| Programmable pulse outputs | 1 |
| Pulse output max. output frequency | 50.0 kHz |
| Analog Output | |
| Programmable analog outputs | 2 (local), 4 (extensible) |
| Voltage range / current range | 0 - 10 V / 0 - 20 mA |
| Relay Output | |
| Programmable relay outputs | 2 (local), 4 (extensible) |
| RA - RB / TA - TB | Normally close |
| RA - RC / TA - TC | Normally open |
| Contact capacitance | 250 V AC / 3A, 30 V DC / 3 A |
| Terminal 485 Interface | |
| 485+ / 485- | Rate: 4800/9600/19200/38400/57600/115200 bps Max. distance: 500 m |
| GND | Isolated from COM |
| Ambient | |
| Vibration | Less than 5.9 m/s² (0.6g) |
| Humidity | Relative humidity 5% - 95 %. No condensation |
| Corrosive environment | 3C3 |
| Ambient temperature | -10 - 50 ºC |
| Altitude | 0 - 2,000 m |
| Rated output current derated 1% every 100 m above 1,000 m | |
| Storage temperature | -40 - +70 ºC |
| Efficiency | Efficiency At rated amps: 7.5kW and below: ≥93% 11 - 45kW: ≥95 % 55kW and above: ≥98 % |
| IP grade | IP20 |
| Cooling method | Forced air cooling |
| Fieldbus Communication | |
| Modbus RTU, Modbus ASCII | Built-in |
| Profibus DP, CAN, CANopen, etc. | Optional |
GK800 offers V/F control (including voltage and frequency separated control), sensor-less vector control 1 (robust vector control mode, static autotuning acceptable), and sensor-less vector control 2 (precise vector control mode, rotary autotuning required), and closed-loop vector control, adaptable to asynchronous and synchronous motor for various industrial applications, including air compressor, lift & elevator, hoist & crane, sugar mill, winches, machine tools, drawbench, printing machines, packaging machines, textile industry, oil industry, pharmaceuticals industry, etc.
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| Hoist | Cranes | Drawbench | Oil well pumping unit |
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| Corrugated paper production line | Injection molding machine | CNC turning lathe | More |
Production
In production, rigorous quality control is implemented on components, circuit boards, and the finished goods, assuring products without defects.
GTAKE VS Other brands
| Performance | Common brands | GTAKE |
| Applicable motors | Asynchronous motors | Asynchronous /synchronous motors |
| Starting torque | 2.0Hz, 150% (sensor-less vector control) 0Hz, 180% (closed-loop vector control) | 0.5Hz, 180% (sensor-less vector control) 0Hz, 200% (closed-loop vector control) |
| Speed adjustable range | 1:100 (SVC), 1:1000 (VC) | 1:200 (SVC), 1:1000 (VC) |
| Ambient temperature (no derating required) | -10-40ºC | -10-50ºC (for most of the models) |
| Rated input voltage | 208VAC-400VAC | 208VAC-480VAC |
| Communication | Modbus RTU//ASCII | Modbus RTU//ASCII Profibus-DP, CANopen, etc. |
| Position control (fixed length, or angular positioning) | × | √ |
| Field weakening control | × | √ |
| Autotune online | Online | Online & Offline |
| Short-time ramp-up | Trip | No trip |
| Customized features (software and/or hardware) | Unprocurable or no experience | Procurable with rich experience |
Packaging and logistics
All drives are well packed before shipment, fit for air shipment, sea transportation, and express delivery. Customers are able to call its own nominated forwarder or consult GTAKE logistics department for worldwide shipment services.
* Low-power inverters are packed in cardboard box, and others are in plywood cases.
* Plenty of transportation procurable globally in accordance with customer demand or GTAKE expertise.