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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220v/ 380v 0.75kw-710kw vfd ac drive Inverter with LCD keypad
Strong R&D Power
Board design: ECAD design platform-Mentor, Network design constraint Netclass(set network width and distance)
Shematic diagram interdesign with PCB to a perfect extent with complete serious checking function
Power module design platform-heat model design
Power Electronics design-IGBT Pulse Test
Software design: powerful function:Simulink-MotorConrol simulation platform
| 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 |
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 K-Drive 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 K-Drive expertise.
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.
VVVF (Variable Voltage Variable Frequency) drives are commonly used to control the speed of electric motors. To determine the failure of a VVVF drive, you can follow these steps:
Check for error codes: VVVF drives have built-in diagnostic tools that generate error codes when something goes wrong. Check the manual for your specific VVVF drive to find out how to access and interpret these error codes. The error codes will help you identify the specific component or circuit that is causing the problem.
Check the power supply: If the VVVF drive is not receiving the correct voltage or frequency from the power supply, it may not function properly. Check the power supply to ensure that it is providing the correct voltage and frequency.
Check the wiring: Loose or damaged wiring can cause VVVF drives to fail. Check all wiring connections to ensure that they are secure and undamaged.
Check the motor: If the motor that the VVVF drive is controlling is faulty, it can cause the drive to fail. Check the motor for any signs of damage or wear.
Check the VVVF drive itself: If all of the above checks out, it may be that the VVVF drive itself is faulty. Consult the manual for your specific VVVF drive to determine how to diagnose and repair internal faults.
It is important to note that VVVF drives can be complex and potentially dangerous electrical devices, and should only be inspected and repaired by qualified professionals.
