PFSK142 ABB Модуль

Description

PFSK142 ABB Модуль

PFSK142 ABB Модуль

When it comes to frequency converters, it is important to mention AC motors, as frequency converters must be used in conjunction with electric motors, known as the “industrial mule horse” that supports the development of industry.
U/F control mode (voltage frequency ratio control) – The corresponding model of ABB frequency converter is the ACS510 series
In the 1970s, the initial frequency converter, namely the U/F controlled frequency converter, was introduced by changing the synchronous speed for speed regulation. It can be divided into two situations: below the fundamental frequency and above the fundamental frequency.
1. Speed regulation below fundamental frequency
In order to fully utilize the iron core of the motor and unleash its ability to generate torque, a constant magnetic flux control method is adopted at the fundamental frequency to maintain the magnetic flux unchanged. When the frequency is adjusted downwards from the rated value, the induced electromotive force must be reduced simultaneously. However, the induced electromotive force in the winding is difficult to directly control. When the electromotive force value is high, the stator resistance and leakage inductance voltage drop can be ignored and replaced by the stator phase voltage, That is to say, the stator phase voltage/frequency=constant value.
At low frequencies, the stator phase voltage and induced electromotive force are both small, and the component of stator resistance and leakage inductance pressure drop is relatively large. The torque of the motor decreases, and the stator phase voltage can be artificially raised to compensate for the stator voltage drop, known as low-frequency compensation or torque increase.

Xiamen Xiongba E-commerce Co., Ltd

Mobile/ WeChat/ WhatsApp:+86-133 6590 9307

E-mail:dcsplcsales@gmail.com  

Skype: +86 133 6590 9307

Contact:   Simon

Website: https://www.dcsplcsystem.com

Address: Unit 2008, Chuangxiang Center, No. 1733, Luling Road, Siming District, Xiamen, Fujian

1. Invensys Foxboro: системы серии I / a, управление последовательностью FBM (модуль ввода / вывода на месте), трапециевидное логическое управление, обработка воспоминаний об авариях, преобразование цифровых модулей, обработка входных / выходных сигналов, передача и обработка данных и т.д.
Invensys Triconex: Система управления избыточной отказоустойчивостью, современный отказоустойчивый контроллер, основанный на трехмодульной структуре избыточности (TMR).
Ovation Emerson – запасные части для систем Ovation, WDPF и MAX1000.
Роквелл – Аллен – Брэдли: Рейсин Райан, SLC500 / 1747 / 1746, Micrologix / 1761 / 1763 / 1766 / 1764, CompactLogix / 1769 / 1768, Logix5000 / 1756 / 1789 / 1794 / 1760 / 1788, PLC – 5 / 1771 / 1785 и др.
Интегрированные схемы Rockwell тройные: процессорные модули, приемопередатчики, цифровые модули каналов, модули расширенного интерфейса и т. Д. t8451 / t8431 / t8461 / t8110b / t8151b / t8403 / t8402 / t8311 / t8151b / t8310 / t8448 и т. Д.
Schneider Modicon: Процессоры квантовой серии 140, карты управления, модули питания и многое другое.