types of transformer.. 1ph 3ph or core shell?

1 Answers  

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Hi buddies! my name is sachin and i am working as a electrical and instrumentation engineer in a paper plant. right now i am facing a problem and if someone could help me it will be an immense pleasure to me. i am using AC 800M to synchronise DCS500 drives on paper machine and rewinder.communication is on PROFIBUS and we are using NPBA-01 module to link profibus to DC drives.But these days two of these drives are showing a error named FIELDBUS COMM.TIMED OUT and the drives get tripped.I have changed the NPBA module and PROFIBUS cable.So if anyone can do please help me out with this problem.I'll be highly grateful.

0 Answers  

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What is zone,loop/fire alarm system?

0 Answers   Emco,

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how we are selecting instuments by differentiating certain instruments in 4 to 20 ma range and certain in 1 to 5 v dc

0 Answers  

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What is zero elevation and zero suppression?

0 Answers   CCIE,

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I have a steam flow DP transmitter that has output swinging. Steam valve is in manual.I have good steam pressure. The impulse lines have steam tracing on them. The steam tracing has a hole in it that is blowing raw steam on the high side impulse line only. Could this be causing the swinging?

1 Answers   Honeywell,

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what is shutoff dp? why is it important for selection of a control valve?

1 Answers  

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how to write the program for single push button by using ladder diagram

22 Answers   DigiTech,

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How the sizing of the analog signal cable is calculate?

0 Answers   Reliance,

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what is the importance of CV in the control valves? how it is calculated?

0 Answers  

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Conversions

0 Answers   CCIE, Nestle,

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what happens when the profibus fails while in operation (operation of a valve)?

5 Answers   L&T,

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