Is this chain symbol correct, and what does it mean?
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Is this chain symbol correct? What does it mean? Please, experts, help me understand
HS10103 is the control button for remotely starting and stopping the pump. When the pressure at PIC10103 is low, it indicates that the pump is not drawing in enough fluid or cavitation is occurring; in such cases, HS10103 triggers to stop the pump from operating. That’s the logic behind it, but the wiring should not be done in that way – a interlock number is missing
It’s clear enough that there is some interlock or control connection between the instrument and the pump, but it’s still recommended to use the diamond-shaped interlock symbol to represent this… Additionally, this is just a flow chart; an interlock logic diagram is also needed. It’s best to write down the interlocking relationships, >
How do you create a sequential logic diagram?
It seems that this pump controls the outlet pressure by changing the frequency
It’s just about drawing a logic diagram... How should I put this... You can search for “interlock logic diagram” on Baidu and you’ll understand. Study this guideline; there are legends provided that you can use as reference. And this diagram is also necessary if it’s not explained... Who knows what HS/EU mean? Also, if there is an inverter... it should be SC, right?……
I majored in process engineering; is it not necessary to draw the sequential logic diagram? I’ve seen the standard mentioned by the gentleman, and I found that it doesn’t provide detailed instructions on how to draw the instrument interlock symbols for circuits; it’s not very clear after reading it
For the process engineering field… the interlock logic diagrams have nothing to do with you; you can give those diagrams to the automation engineering team, who can then prepare a control manual and help you adjust the PID values. Interlocks require the creation of certain sequence numbers, and if there are many interlocks involved………
You don’t need to draw the interlock logic diagrams; instead, you just need to provide the automation team with a cause-and-effect table or interlock description or something similar
These graphic symbols are too messy; they’re unreadable.