Active Member
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[China]
Address: Wisdom Lmgyu, baishixia community, Fuyong street, Bao 'an District, Shenzhen, China
Contact name:Candy Liu
Shenzhen K-Easy Electrical Automation Company Limited |
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| Model | Power Rating | Input Voltage | Output FREQ | Type |
|---|---|---|---|---|
| KD600S Series | 0.4kW-400kW | 208-240V / 380-480V ±10% | 0.00-3200.00Hz | DC/AC to AC inverters |
Thanks to sophisticated engineers, scientific producing workmanship, rigorous quality control systems and management team, K-Drive frequency inverters are equipped with advanced features, some of which are listed as below:
01. Starting torque: 180% at 0.5Hz (V/f pattern, SVC pattern);
02. Speed adjustable range: 1: 100 (V/f pattern, SVC pattern);
03. Speed accuracy: +/-0.5% (V/f pattern), +/-0.2% (SVC pattern);
04. Over load capability: 150% 1minute, 180% 10seconds;
05. Abundant frequency command sources;
06. Diverse input and output terminals;
07. Ambient temperature: -10°C~50°C;
08. High precise torque constraint, process PID control, multi-speed control, contracting brake control, field weakening control, all sides protection, etc;
09. Online and offline auto-tuning of motor parameters can both performed;
10. Extremely short-time acceleration can be performed without any trip, such as 0.1s or 0s from 0Hz to 50Hz;
| Mains Supply (L1/L,L2,L3/N) | |
|---|---|
| Supply voltage | 208-240V ±10% 380-480V 690V ±10% |
| Power source frequency | 50/60Hz ± 5% |
| Displacement power factor (cos φ) | (>0.98) |
| Output Data (U, V, W) | |
|---|---|
| Output voltage / frequency | 0-100% of supply voltage / 0.00-600.00Hz or customized |
| Ramp time | 0.01-60000s |
Note: 150% current can be provided for 1 minute, 180% for 10 seconds. Higher overload rating is achieved by oversizing the drive.
| Digital Input | |
|---|---|
| Programmable digital inputs | 5 |
| Logic | NPN or PNP |
| Voltage level | 22 - 26V |
| Analog Input | |
| Analog inputs | 2 |
| Modes | Voltage or current |
| Level | 0 to +10V, 0/4 to 20 mA (scalable) |
| Automatic correction | YES |
| Relay Output | |
| Programmable relay outputs | 1 |
| 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 ºC - 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: ≥93% |
| IP grade | IP20 |
| Cooling method | Forced air cooling |
| Fieldbus Communication | |
| Modbus RTU, Modbus ASCII | Built-in |
KD600S drives are economical series at K-Drive. They offer V/f control, including voltage and frequency separated control, adaptable to various industrial applications if sensor-less vector control is not required, including printing machines, packaging machines, pumps, fans and blowers, etc.
 |  |  |
| Conveyors | Centrifuges | Food processing Machinery |
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| Pumps | Fans | More … |
In the trend of advocating smart and simple industrial automation, environmentally friendly products, value-added solutions, K-Drive, as one of the world's leading drive manufacturers aggressively investing in R&D, production, and continuous quality improvement, is well positioned to provide its customers with technology-driven, performance-outstanding products such as VFDs, wind power converters, servo drives, HEV/EV drives, helping its customers save energy and increase industrial productivity with sustainability on the one hand, and enhancing their entire value-chain quality, delivery, and services on the other hand.
In production, rigorous quality control is implemented on components, circuit boards, and the finished goods, assuring products without defects.
| Performance | Common brands | K-Drive |
|---|---|---|
| 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 |
Please leave us an inquiry for more details of our frequency inverters, like information of the model numbers, technical data, applicable application, pricing, distributor policy, lead time and/or customized functionality.
Variable voltage variable frequency (VVVF) refers to a type of control system used to vary the speed of an electric motor. To assess VVVF, the following steps can be taken:
Check the input voltage: VVVF drives require a specific input voltage range. Check if the input voltage is within the specified range.
Check the output voltage and frequency: The output voltage and frequency of the VVVF drive should match the motor requirements. Use a multimeter to measure the output voltage and frequency of the drive.
Check for any abnormal noise or vibration: Abnormal noise or vibration could indicate a problem with the VVVF drive or the motor. Check for any unusual sounds or vibrations during operation.
Test the motor speed: Use a tachometer to test the motor speed at different VVVF settings. The motor speed should correspond to the VVVF setting.
Check for overheating: Overheating can cause damage to the VVVF drive and motor. Check for any signs of overheating, such as hot surfaces or unusual smells.
Monitor the system during operation: Observe the VVVF system during operation and note any abnormal behavior or error codes.
Overall, assessing VVVF involves checking the input and output voltage and frequency, testing the motor speed, checking for abnormal noise or vibration, monitoring the system during operation, and ensuring there is no overheating.
