Acronyms for motor control

[shahyar]

Hi,
In our project the acronyms used on P&ID for motor controls are:
XGM
XSR: run status
XCR: start stop command
XA: common trouble alarm
XA: L/R status
I found these acronyms in "instrumentation handbook" but there is no explanation for them. Can anyone please explain them for me?
Thanks

 

[obut4]

Hi,

I guess:
- XGM repesent the motor

- The rest is self explanatory.

- "L/R status" means Locked Rotor.It comes probably from the motor protection relay. Basically it means that your motor did not reach full speed in the allowed time.It's a protection.


Hope it helps you a bit.

 

[ScottyUK]

L/R is equally likely to mean local / remote. Perhaps not so self-explanatory.


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If we learn from our mistakes I'm getting a great education!

 

[jraef]

These most likely relate to ISA standard notation. P&IDs (Piping & Instrumentation Diagrams) are typically instrumentation centered.

http://www.engineeringtoolbox.com/isa-iso-instrumentation-codes-d_37.html

If there is motor control referenced on it, it is typically only as it relates to an instrumentation / SCADA or DCS system.


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