delf
Chemical
- Feb 23, 2011
- 17
Dear Sir
I wonder how to show the right way that the software signal from interlock to shutdwon the motor. Please see the attached drawing.
case 1 : As liquid level's low low, the singal will interlock through the pushbutton to stop the motor, and the pushbutton only be activated as interlock happen.
case 2 : As liquid level's low low, electrical singal will interlock to stop the motor, and operator also can stop the motor through pushbotton.
case 3 : The signal form interlock to motor is electrical signal instead of software signal
Could anyone please help me to tell which cases is right cause sometime I saw different cases can describe the same interlock scenario? For exampe, We use case 1 & 2 in our porject to descripe the tank liquid's low low, and the pump stop.
Thank you very much for your generours help.
I wonder how to show the right way that the software signal from interlock to shutdwon the motor. Please see the attached drawing.
case 1 : As liquid level's low low, the singal will interlock through the pushbutton to stop the motor, and the pushbutton only be activated as interlock happen.
case 2 : As liquid level's low low, electrical singal will interlock to stop the motor, and operator also can stop the motor through pushbotton.
case 3 : The signal form interlock to motor is electrical signal instead of software signal
Could anyone please help me to tell which cases is right cause sometime I saw different cases can describe the same interlock scenario? For exampe, We use case 1 & 2 in our porject to descripe the tank liquid's low low, and the pump stop.
Thank you very much for your generours help.
