A4-7.5K-A

discuss personally

* All Chinese setting interface is optional
* Wide voltage input: 3 phases 323-528V
* Quick start up and shut down (A4 series 0.01s quick start up and shut
down)
* Motor speed tracking restart, smooth without impact
* Low frequency high torque: closed loop vector starting torque: closed loop vector starting torque 0.00Hz 180%
It is widely used in ceramic cement, power power plants, glass, packaging, printing,
cable, water treatment and other transmission and fan control

  • Characteristic performance:

    Revolving speed
    tracking start
    The frequency converter recognizes the speed of the rotating motor and directly tracks the start from the identified frequency.
    The current and voltage in the starting process are smooth and no-impact

    Low frequency high
    torque
    Closed loop vector control 0.00Hz 180%; Open loop vector control 2:0.25Hz 180% ; Open loop vector control 1: 0.50Hz 180%

    Key functionsTorque/speed control mode switching, multi-function input/output terminals, undervoltage regulation, three-way switching,
    revolving speed tracking,torque limit, multi-speed operation (up to 23 sections), auto-tuning, S-curve acceleration/deceleration
    slip compensation, PID adjustment, droop control, current limit control, manual/automatic torque boost, current limit

    Frequency range0 . 00~300 . 00 H z Note: Open loop vector control 1 mode 0 . 0 ~ 3000 . 0 H z can be customized according to customer needs

    Starting frequency0. 00~60. 00Hz

    Acceleration and
    deceleration time
    0. 1 ~ 36000s. (A4 above supports 0.01s)

    Energy consumption
    braking capacity
    Braking unit operating voltage: 650 to 750V

    DC braking capabilityDC braking starting frequency: 0. 00 ~ 300. 00Hz. DC braking current: constant torque 0. 0 ~ 120. 0%; variable torque 0. 0 ~ 90.
    0% DC braking time: 0. 0~30. 0s: No need of DC brake start waiting time for quick braking

    Flux brake functionContinuing operating, no operating is optional during deceleration, factory default does not operate during deceleration

    Copy of parametersThe standard operation panel can realize parameter uploading and downloading with a copy progress indication; the uploaded
    parameters can be selected to be prohibited from being uploaded and overwritten.

    Common DC busFull series can realize multiple frequency converters sharing DC bus power supply

    Independent ductThe whole series adopts independent air duct design to support the ambient installation mode of radiator

    Universal expansion
    interface
    Support customers for secondary development of universal expansion board with CPU: Physical interface SPI bus, software protocol
    Mod bus

    Expansion cardPG feedback card, constant pressure water supply module, Modbus, Profibus, Can communication adapter

    Power on self-
    inspection
    Achieve power-on self-inspection of internal and external circuits, such as motor grounding, +10 V power output abnormality,
    analog input abnormality, and disconnection.

    Special protectionUndervoltage, overcurrent protection, overvoltage protection, interference protection, auto-tuning fault, module protection,
    radiator overheat protection, frequency converter overload protection, motor overload protection, peripheral protection,
    abnormal current detection, abnormal output short circuit current to earth, abnormal power off during operation, input power
    supply abnormality, output phase loss abnormality, EEPROM abnormality, relay pull-in abnormality, temperature sampling
    disconnection, encoder disconnection, +10 V power output abnormality, analog input abnormality, motor overheat (PTC),
    communication abnormality, version compatibility abnormalit y, copy abnormality, expansion card connection abnormality, terminal
    mutex check failed, hardware overload protection

  • Parameter nameParameter values
    voltage class400V
    Frequency converter modelA4-7.5K-A
    W155
    H249
    D185
    W1136
    H1232
    D169
    T18
    d5.5
    weihght(kg)3

    A4系列变频器:

    功率(kW)0.751.52.23.75.57.5111518.52230374555

    电机功率(kW)0.751.52.23.75.57.5111518.52230374555

    输出电压(V)3 相 0- 额定交流输入电压3 相 0- 额定交流输入电压3 相 0- 额定交流输入电压3 相 0- 额定交流输入电压
    额定电流(A)2.53.85.59131724303945607591112
    过载能力150%  1 分钟,180%  10 秒,200%  0.5 秒,间隔 10 分钟(反时限特性)150%  1 分钟,180%  10 秒,200%  0.5 秒,间隔 10 分钟(反时限特性)

    输入额定电压 / 频率三相 380V-480V;50Hz/60Hz三相 380V-480V;50Hz/60Hz三相 380V-480V;50Hz/60Hz三相 380V-480V;50Hz/60Hz
    允许范围323V-528V, 电压不平衡度:≤ 3%,允许频率波动:±5%323V-528V, 电压不平衡度:≤ 3%,允许频率波动:±5%
    额定电流 (A)3.56.29.214.921.527.93950.36069.386104124150

    制动单元标准内置标准内置标准内置标准内置标准内置标准内置标准内置标准内置内置可选内置可选内置可选内置可选内置可选内置可选

    防护等级IP20IP20IP20IP20IP20IP20IP20IP20IP20IP20IP20IP20IP20IP20

    冷却方式自冷自冷强制风冷强制风冷强制风冷强制风冷强制风冷强制风冷强制风冷强制风冷强制风冷强制风冷强制风冷强制风冷

     


    A4系列变频器:

    功率(kW)7590110132160185200220280315355400450500

    电机功率(kW)7590110132160185200220280315355400450500

    输出电压(V)3 相 0- 额定交流输入电压3 相 0- 额定交流输入电压3 相 0- 额定交流输入电压3 相 0- 额定交流输入电压
    额定电流(A)150176210253304350380426520600650690775860
    过载能力150%  1 分钟,180%  10 秒,200%  0.5 秒,间隔 10 分钟(反时限特性)150%  1 分钟,180%  10 秒,200%  0.5 秒,间隔 10 分钟(反时限特性)

    输入额定电压 / 频率三相 380V-480V;50Hz/60Hz三相 380V-480V;50Hz/60Hz三相 380V-480V;50Hz/60Hz三相 380V-480V;50Hz/60Hz
    允许范围323V-528V, 电压不平衡度:≤ 3%,允许频率波动:±5%323V-528V, 电压不平衡度:≤ 3%,允许频率波动:±5%
    额定电流 (A)201160196232282326352385491580624670755840

    制动单元内置可选需外置制动单元需外置制动单元需外置制动单元需外置制动单元需外置制动单元需外置制动单元