Индивидуальные 0,75 кВт 1,5 кВт 2,2 кВт 3,7 кВт 220 кВт 450 кВт 3 фазный преобразователь частоты низкого напряжения для металлургии

Input voltage

3AC 380~460V (-15%~+20%)

Input frequency

50/60Hz±5%

Output voltage

0～rated input voltage

Output frequency

Vector control: 0~500Hz
V/f control: 0~2000Hz

Control mode

V/f control
Sensorless vector control (SVC)
Close-loop vector control (FVC)

Operation command mode

Keypad control
Terminal control
Serial communication control (Modbus)

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

G model: 150%/60s, 180%/3s
P model: 120%/60s, 150%/3s

Starting torque

0.25Hz/150% (SVC);
0.5Hz/150% (V/f),
0Hz/180% (FVC)

Speed control precision

±0.5% (SVC)

Carrier frequency

0.5~16.0kHz, automatically adjusted according to temperature and load characteristics

Frequency accuracy

Digital setting: 0.01Hz
Analog setting: maximum frequency ×0.025%

Torque boost

Automatically torque boost; manually torque boost: 0.1%~30.0%

Control Features

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: 0.0~6500.0s

Braking unit

1.5~22kW: standard build-in.
30~37kW optional for build-in
>37kW, external braking unit..

DC braking

DC braking when starting and stopping
DC braking frequency: 0.0Hz~maximum frequency, braking time: 0.0s~36.0s

Jog operation

Jog operation frequency: 0.0Hz~maximum frequency
Jog acceleration/deceleration time: 0.1s~6500.0s

Simple PLC & multi-step speed operation

It can realize a maximum of 16 multi-step speeds 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

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

Comprehensive protections include 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

Programmable digital inputs: DI1~DI6, DI5 can be used as high speed pulse input terminal.
Programmable analog inputs: AI1, AI2 (compile with both 0～10V & 4～20mA).

Programmable digital outputs:
2 relay outputs
2 open-collector outputs, FM can be set as high speed pulse output terminal (0~100kHz).
Programmable analog outputs: AO1, AO2:(compile with both
0～10V & 4～20mA).

Communication terminals

Standard RS485 communication interface, support MODBUS-RTU communication protocol

LED display

Display frequency setting, output frequency, output voltage, output
current, etc. Two lines display

LED display

Display frequency setting, output frequency, output voltage, output
current, etc. Two lines display

Multi-function key

MF.K key, can be used as multi-function key

Ambient temperature

-10℃～40℃ (>40℃, output derated), without direct sunshine.

Humidity

95%RH or less (non-condensing)

Altitude

≤1000M: output rated power, ＞1000M: output derated

Storage temperature

-20℃～60℃