NZ3000 series Air Compressor Integrated inverter is a high-performance inverter specially designed and produced by Nietz for screw air compressors.
| Input voltage,V | Power range, кW |
| 380~480 | 7.5- 55 |
The NZ3000 integrated type adopts plastic shell structure, floor and wall supports two kinds of installation, ease of installation;
Commissioning wiring products easy to operate, wherein the control circuit terminal plug-in connector terminals, and mistake proofing plug design;
High integration products: built-in DC reactors to reduce the external interference, improve the power factor; built-in 220V AC power supply, transformer anti-over current fuses provide 24V DC external output;
The other built-in integrated PT100 and PTC, and other detection circuit and protection circuit.
NZ3000 software uses special software, communications equipment HMI 4.3" and 7", and other things with no debugging achieve a key to start.
NZ3000 series variable frequency drive, 3 phase 380V/415V/480V, RS485 communication mode and IP 20 enclosure rating.
Item | Specification | |
Basic Control Function | Control Mode | V/F control Open-loop vector control (SVC) |
Maximum frequency | Vector control: 0~599Hz; V/F control: 0~3200 Hz | |
Carrier frequency | 0.5kHz~15kHz The carrier frequency is automatically adjusted based on the load features. | |
Input frequency resolution | Digital setting:0.01Hz Analog setting: Maximum frequency x 0.025% | |
Start torque | 0.5Hz/150%(SVC); | |
Speed range | 1:100 | |
Speed stability accuracy | ±0.2% | |
Torque control accuracy | ±10% | |
Overload capacity | 60s for 150% of the rated current, 3s for 180% of the rated current. | |
Torque boost | Fixed boost; Manual torque boost: 0.1%~30.0% | |
V/F curve | Straight-line V/F curve Multi-point V/F curve’ N-power V/F curve (1.2-power, 1.4 power, 1.6 power, 1.8 power, square) | |
V/F separation | Two type: complete separation; half separation | |
Ramp mode | Straight-line ramp S-curve ramp Four groups of acceleration/deceleration time with the range of 0.0~6500.0s | |
Communication methods | RS485 Modbus | |
JOG control | JOG frequency range: 0.00~50.00 Hz JOG acceleration/deceleration time:0.0~6500.0s | |
Built-in PID | It realizes process- controlled closed loop control system easily. | |
Auto voltage regulation (AVR) | It can keep constant output voltage automatically when the mains voltage changes. | |
Frequency source | Digital setting | |
Input/Output terminal | Analog input | 1 pressure sensor: 4~20mA input 2 temperature sensor: PT100 |
Digital input | 2 digital input 1 PTC circuit protection (compatible with normal digital inputs) | |
Digital output | 1 normally open relay output ( built in 220VAC votlage) | |
LED diode display | Standard 3 LED display | |
Protection function | Motor overheating protection (PTC), the power-to-ground short-circuit protection, inverter over-current, overload, over voltage, under voltage, over temperature, output phase, communication fault, fault current detection, EEPROM write failure and so on. | |
Environment | Installation location | Indoor, free from direct sunlight, dust, corrosive gas, combustible gas, oil smoke, vapor, drip or salt. |
Altitude | Lower than 1000m | |
Ambient temperature | -10℃~+40℃（de-rated use if the ambient temperature is between 40℃~50℃） | |
Humidity | Less than 95%RH，without condensing | |
Vibration | Less than 5.9m/s2（0.6g） | |
Storage temperature | -20℃~+60℃ | |
NZ3000 AC Drive User Manuals