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variateur_NZ8000_b

NZ8000 série Contrôle vecteur en boucle fermée

NZ8000 série Contrôle vecteur en boucle fermée - High proformance close loop vector control inverter:

Can adjust carrier frequency automatically according to loading characteristics. Suitable for almost all applications.

Caractéristiques techniques

  • Input voltage,V
  • 380
  • Power range, кW
  • 0.75 - 1000

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.

Spetifications series NZ8000

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.