NZ8000 series - High proformance close loop vector control inverter:
Sensorless vector / Closed loop vector controls
Suitable for almost all applications.
Input Voltage: 380V~480V; 690V
Power range: 0.75~1400kW
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Features:
● Open loop vector control (without PG card)
● close loop vector control (with PG card)
● V/F control: Built-in PID control
● Can support Profibus communication protocol (optional)
● Support many types of PG card
● Specified model in many industries, can achieve funtions like tension control, magnetoelectric motor and so on.
| Items | Specifications |
| Control method | Open loop vector control (without PG card); close loop vector control (with PG card); V/F control |
| Frequency range | Vector control: 0-320Hz; V/F control: 0-3200Hz |
| Setting of carrier frequency | 1kHz-16kHz, can adjust carrier frequency automatically according to loading characteristics. |
| Resolution ratio of input frequency | Digital setting: 0.01Hz |
| Simulating Setting: Max frequency * 0.025% | |
| Starting torque | G type model: 0.5 Hz / 150% (without PG); 0Hz / 180% (with PG) |
| P type model: 0.5Hz / 100% | |
| Speed adjusting range | 1:100 (without PG) 1:1000 (with PG) |
| Stable speed precision | ±0.2% (without PG) ±0.02% (with PG) |
| Torque controlling precision | ±5% (with PG) |
| Overload capacity | G type model: 150% of rated current can last at most 60s, 180% of rated current can last at most 3s, P type model: 120% of rated current can last at most 60s, 150% of rated current can last at most 3s |
| Improve of torque | automatic improve of torque; improve of torque by hand 0.1% - 30.0% |
| V/F curve | Three methods: linear type, multi points type; nth power V/F curve (1.2th power, 1.4th power, 1.6th power, 1.8th power, 2th power) |
| V/F separte | 2 methods: all separte and semi separte |
| Acceleration / Deceleration curve | Linear type or S curve method of accleration / deceleration. Four types of accleration / deceleration time, accleration / deceleration time range is 0.0 - 6500.0 S |
| DC brake | DC brake freuquency: 0.00Hz - max frequency. Brake time: 0.0S - 100.0S. Brake action current value: 0.0% - 100.0% |
| Jog control | Jog frequency range: 0.00Hz - 50.00 Hz, jog accleration / deceleration time 0.0S - 6500.0S |
| PLC multi stage speed operation | Can achieve at most 16 stage speed operation by built-on PLC or control terminals. |
| Built-in PID | Can convenient achieve precedure control close loop control system |
| Automatic voltage adjusting | When power grid voltage changes, can keep output voltage stable automatically. |
| Control of losing speed from overvoltage and overcurrent | Limit automatically the current and voltage during operation, to prevent frquent tripping operation of overcurrent and over voltage. |
| Quick limit of current function | Decrease overcurrent breakdown at biggest level, to protect inverter run normally |
| Torque limit and control | "Navy" characteristic, limit torque automatically during operation, to prevent frquent tripping operation of overcurrent, close loop vector control can achieve torque control. |
It can drive a variety of motors:high-speed motor,electric spindle,variable frequency motor,AC servo motor,various synchronous motors and ordinary asynchronous motors. Use in elevator, lift, machine tools.
User manual