With the continuous expansion of our variable frequency drive market, in order to better meet the needs of foreign customers, we have developed the NK500 series vector LCD display high performance frequency converter.
NK500 inverter is a high-performance vector frequency inverter developed by our company based on years of mature inverter research and development experience. It has the following advantages:
1. High-performance vector control platform, new motor control algorithm, support open loop and closed loop control;
2. Support synchronous machine and asynchronous machine drivers;
3. Support a variety of encoders, high-precision closed-loop control;
4. Support a variety of expansion cards, can be customized development;
5. Low speed high torque, low speed control performance;
6. Full series European design style, maximum saving installation space;
7. Big screen LCD keyboard, easy to debug and fault diagnosis;
8. The whole machine three-proof design, PCB spraying three-proof reliable;
Specifications:
| Item | Specification | |
| Input | Input voltage | 1AC 220vac(-15%---+10%)， 3AC 380vac(-15%---+10%) |
| Input frequency | 50--60Hz±5% | |
| Output | Output voltage | 0--rated input voltage |
| Output frequency | 0--500Hz | |
|
Control features
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Control mode | V/FSensorless vector control |
| Operation command mode | Keypad controlTerminal control
Serial communication control |
|
| Frequency setting mode | Digital setting, analog setting, pulse frequency setting, serial communication setting, multi-step speed setting&simple PLC, PID setting, etc. These frequency settings can be combined&switched in various modes. | |
| Overload capacity | 150% 60s, 180% 10s, 200% 1s | |
| Start torque | 0.5Hz/150%(V/F)0.25Hz/150%(SVC) | |
| Speed range | 1:100(V/F), 1:200(SVC) | |
| Control precision | ±0.5% | |
| Speed fluctuation | ±0.5% | |
| Carrier frequency | 0.5khz---16.0khz, automatically adjusted according to temperature and load characteristics | |
| Frequency accuracy | Digital setting: 0.01HzAnalog setting: Max frequency*0.05% | |
| Torque boost | Automatically torque boost; manually torque boost: 0.1%--30.0% | |
| V/F curve | Three types: linear, multiple point and square type(1.2 power, 1.4 power, 1.6 power, 1.8 power, square) | |
| Acceleration/deceleration mode | Straight line/S curve; four kinds of acceleration/deceleration time, range: 0.1s--3600.0s | |
| DC braking | DC braking when stating and stopping DC braking frequency: 0.0Hz--max frequency Braking time: 0.0s--100.0s | |
| Jog operation | Jog operation frequency:0.0Hz--max frequency Jog acceleration/deceleration time: 0.1s--3600.0s | |
| Simple PLC&multi-step | It can realize a max of 16 segment speed running via the built-in PLC or control terminal | |
| Built-in PID | Built-in PID control to easily realize the close loop control of the process parameters(such as pressure, temperature, flow, etc.) | |
| Automatic voltage regulation | Keep output voltage constant automatically when input voltage fluctuating | |
| Common DC bus | Common DC bus for several inverters, energy balanced automatically | |
| Torque control | Torque control without PG | |
| Torque limit | “Rooter”characteristics, limit the torque automatically and prevent frequent over-current tripping during the running process | |
| Wobble frequency control | Multiple triangular-wave frequency control, special for textile | |
| Timing/length/counting control | Timing/length/counting control function | |
| Over-voltage&over-current stall control | Limit current&voltage automatically during the running process, prevent frequent over-current&over-voltage tripping | |
| Fault protection function | Up to 30 fault protections including over-current, over-voltage, under-voltage, overheating, default phase, overload, shortcut, etc. Can record the detailed running status during failure& has fault automatic reset function | |
| Input/output terminals | Input terminals | Programmable DI: 7 on-off inputs, 1 high speed pulse input2 programmable AI1: 0--10V or 0/4--20mAAI2: 0--10V or 0/4--20mA |
| Output terminals | 1programmable open collector output: 1 analogue output(open collector output or high speed pulse output)2 relay output2 analogue output:0/4--20mA or 0--10V | |
| Communication terminals | Offer RS485 Communication interface, support Modbus-RTU communication protocol | |
| Human machine interface | LCD display | Display frequency setting, output frequency, output voltage, output current, etc. |
| Multi-function key | QUICK/JOG key, can be used as multi-function key | |
|
Environment |
Installation location | Indoor, free from direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapour, drip or salt. |
| Altitude | 0--2000m, Up than 1000m, need to reduce capacity. | |
| Ambient temperature | -10℃ to +40℃(derated if the ambient temperature is between 40℃ and 50℃) | |
| Humidity | Less than 95% RH, without condensing | |
| Vibration | Less than 5.9m/s2 (0.6g) | |
| Storage temperature | -20℃ to +60℃ | |
Post time: Jul-15-2024