75KW VFD 3HP 380V AC Variable Frequency Drive Inverter For 3 Phase Motor Torque Speed Control

Project

Specifications

Power input

Rated input voltage (V）

3-phase 380 V (-15%～+30%）

Rated input current (A）

See table 2-1

Rated input frequency（Hz）

50Hz/60Hz，tolerance±5%

Power output

Applicable motor（kW）

See table 2-1

Rated output current（A）

See table 2-1

The maximum output voltage（V）

0～rated input voltage, error<±3%

The maximum output frequency（Hz）

0.00～600.00 Hz,unit0.01Hz

Control
characteristics

V/f patterns

V/f control
Sensor-less vector control 1
Sensor-less vector control 2

Speed range

1:50 (V/f control)
1:100 (sensor-less vector control 1)
1:200（sensor-less vector control 2）

Speed accuracy

±0.5% (V/f control)
±0.2% (sensor-less vector control 1 & 2)

Speed fluctuation

±0.3% (sensor-less vector control 1 & 2)

Torque response

< 10ms (sensor-less vector control 1 & 2)

Starting torque

0.5Hz: 180% (V/f control, sensor-less vector control 1)
0.25Hz: 180% (sensor-less vector control 2)

Basic functions

Carrier frequency

0.7kHz～16kHz

Overload capability

G Model:150% Rated Current 60s,180% Rated Current 10s,200% Rated Current 1s.
P Model:120% Rated Current 60s,145% Rated Current 10s,160% Rated Current 1s.

Torque boost

Automatic torque boost；Manual torque boost 0.1%～30.0%

V/F Curve

Three ways:Three ways: straight; multi-point type; N Th-type V / F curve（1.2 Th -type, 1.4 Th -type, 1.6 Th -type, 1.8 Th -type, 2
Th -type）

Acceleration and deceleration Curve

Line or curve acceleration and deceleration mode.
Four kinds of acceleration and deceleration time，Ramp Time Range :0.0～6000.0s

DC brake

DC brake start frequency: 0.00～600.00Hz
DC brake time:0.0s～10.0s
DC brake current:0.0%～150.0%

Basic functions

Jog brake

Jog frequency range:0.00Hz～50.00Hz.
Jog deceleration time: 0.0s～6000.0s.

Simple PLC, Multi-speed

Through the built-in PLC or control terminal to achieve up to 16 speed running

Built-in PID

Facilitate the realization of process control loop control system

Automatic voltage adjustment（AVR）

When the grid voltage changes, can automatically maintain a constant output voltage

Fast current limit function

Minimize over current fault protection inverter running

Over voltage Over current

System automatically limits of current and voltage during operation to prevent frequent

Run

Command source

Given the control panel, control terminal, serial communication port given.

Frequency given

9 kinds of frequency given sources: digital setting, keyboard potentiometer setting, analog
Voltage, given analog current reference pulse is given, the serial port is given, multi-speed given, PLC is given, the process PI
D reference. There are several ways to switch

Input terminal

7 Switch input terminals, one way to make high-speed pulse input.
3-channel analog inputs, including 2-way 0～10V / 0～20mA voltage and current options,
a way to support -10～+10 V input

output
terminal

2-way switch output terminal, which supports a maximum road speed 100kHz pulse output.
2 relay output terminals.
2 analog output terminal, and optional voltage and current.

Featured
functions

Parameter copy, parameter backup, flexible parameter displayed & hidden. Common DC bus（Contains below 30 KW）.
Various master & auxiliary command and switchover.
Reliable speed search started.
A variety of Accel / Decel curves programmable.
Timing control, fixed length control, count function.
Three faults recorded.
Over excitation brake, overvoltage stall protection programmable, under voltage stall protection programmable, restart upon power
loss.
Four kinds of Accel/Decel time.
Motor thermal protection.
Flexible fan control.
Process PID control, simple PLC, 16-step speed control programmable.
Wobble frequency control.
Multi-functional key programmable, field-weakening control.
High-precision torque control, V/f separated control, torque control at sensor-less vector control.

Protection
function

Provide fault protection dozen: Overcurrent, Overvoltage, Undervoltage, Overtemperature, Overload Etc Protection.

Display and keyboard

LED Display

Display Parameters

Key lock and function selection

Realize some or all of the keys locked, scope definition section keys to prevent misuse

Run and stop monitoring information

In the run or stop can be set to monitor U00 group four objects were.

Environment

Place of
operation

Indoors, no direct sunlight, free from dust, corrosive gases,
flammable gases, oil mist, water vapor, water drop and salt, etc.

Altitude

0～2000m
De-rate 1% for every 100m when the altitude is above 1000 meters

Ambient
temperature

-10℃～40℃

Relative
humidity

5～95%, no condensation

Vibration

Less than 5.9m/s2 (0.6g)

Storage
temperature

-20℃～+70℃

Others

Efficiency

Rated power≥93%

Installation

Wall-mounted or Flange mounting

IP grade

IP20

Cooling
method

Fan cooled