NU8976a
NU8976a
NU8976a
有源前端是一种让变频器向主电源回送能量的选件。它可实现四象限运行，因此很好地适合于具有发电机运行模式的所有应用。
有源前端是一个在任何负载状况下均可提供恒定直流电压源的电源和再生单元。在此直流母线上可以运行一个或多个逆变器。由此最多可有4个有源前端单元可被并联连接至此直流线排，以改善冗余度，并提高总功率。
communication interface
Modbus protocol communication interface
1EC870-5 protocol communication interface (Telecontrol)
4.2 Field Controller PS
Industrial” field controller PS is a special process control station, which is embedded with field bus communication interface for users to use
Fieldbus technology offers very flexible options. Each PS allows to insert 4 fieldbus interface cards (the card type can be different),
Each card is connected to 1 field bus to collect process data and diagnostic information from the bus, the interface card is easy to replace and plug and play
(Plug & Play), and can be plugged and unplugged.
The field controller PS has the following characteristics:
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Flexible: supports all international standard open fieldbuses and can be mixed
Simultaneous connection of 4 high-speed fieldbuses (max. 12 MBd)
Simple engineering: configuration, commissioning and diagnostics using only the same tool CBF (Control Build F) software
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Access to all information from the field including equipment management information
Global database of fieldbus devices, control levels and HMI (Human Machine Interface) usage systems
Module identification with production operating parameters
c
complete self-diagnosis
Compact and robust design
Front Panel Wiring
DIN rail (U-shaped) installation well can be directly wall mounted, simple and convenient
o
Allowable operating ambient temperature…60 C, with automatic temperature monitoring
o
EMC (Electromagnetic Compatibility) according to EN50082
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Certifications: CE, NAMUR, CSA, CSA-NRT
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