I would like to ask what the meaning of the control signals for the pump in the diagram is
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Could you please explain the meaning of various control signals for this pump shown in the diagram? Thank you
YAL: Y stands for accident condition; A stands for alarm. L means low level, that is, an alarm indicating a low level of accident.
FIQR: F stands for flow rate; I stands for indication; Q stands for accumulation; R stands for recording, that is, flow rate indication, accumulation, and recording.
FT: F stands for flow rate; T stands for transmitter, that is, a flow rate transmitter.
FE: F stands for flow rate; E stands for sensing element, that is, a flow rate sensing element.
PI: Pressure indication.
LCV: Liquid level control valve.
LS: Liquid level switch.
FIQ: Flow rate indication, accumulation.
LA； Liquid level alarm RSV: R stands for nuclear radiation, S stands for switch, and V stands for valve; I think you’ve got this one wrong (referring to R). Letter symbols for instruments First character Second character A Analysis, alarm B Combustion C Counting, control D Density E Voltage detection F Flow rate G Measurement H Manual mode I Current display J Power supply K Time L Position, low level M Moisture P Pressure Q Quantity R Radiation recording S Speed, switch T Temperature transmission U Multi-variable, multi-functional V Vibration, valve W Weight Y Accident status Z Position, size. Common instrument characters and graphic symbols Table 1: Variable symbols Symbol Variable Symbol Variable D Density or specific gravity P Pressure or vacuum E Electrical quantity S Speed, rotation speed, or frequency F Flow rate T Temperature L Liquid level V Viscosity M Humidity W Weight or force Table 2: Function symbols Symbol Type or function of measuring device Symbol Type or function of measuring device A Alarm R Recording C Calibration S Sequential control E Detection T Transfer or conversion I Indication Y Calculation Q Integration Z Safety or emergency situations Table 3: Common graphic instrument symbols Common graphic instrument symbols
FIQR: F stands for flow rate; I stands for indication; Q stands for accumulation; R stands for recording, that is, flow rate indication, accumulation, and recording.
FT: F stands for flow rate; T stands for transmitter, that is, a flow rate transmitter.
FE: F stands for flow rate; E stands for sensing element, that is, a flow rate sensing element.
PI: Pressure indication.
LCV: Liquid level control valve.
LS: Liquid level switch.
FIQ: Flow rate indication, accumulation.
LA； Liquid level alarm RSV: R stands for nuclear radiation, S stands for switch, and V stands for valve; I think you’ve got this one wrong (referring to R). Letter symbols for instruments First character Second character A Analysis, alarm B Combustion C Counting, control D Density E Voltage detection F Flow rate G Measurement H Manual mode I Current display J Power supply K Time L Position, low level M Moisture P Pressure Q Quantity R Radiation recording S Speed, switch T Temperature transmission U Multi-variable, multi-functional V Vibration, valve W Weight Y Accident status Z Position, size. Common instrument characters and graphic symbols Table 1: Variable symbols Symbol Variable Symbol Variable D Density or specific gravity P Pressure or vacuum E Electrical quantity S Speed, rotation speed, or frequency F Flow rate T Temperature L Liquid level V Viscosity M Humidity W Weight or force Table 2: Function symbols Symbol Type or function of measuring device Symbol Type or function of measuring device A Alarm R Recording C Calibration S Sequential control E Detection T Transfer or conversion I Indication Y Calculation Q Integration Z Safety or emergency situations Table 3: Common graphic instrument symbols Common graphic instrument symbols
YL here should represent the feedback signal of the motor’s operation, HS is likely the start and stop switch, II refers to the motor’s current, and I002 is probably the relevant interlock code
The letter c is an abbreviation for conductivity! !