Joe Fricke
New Member
Please forgive my ignorance. I have some knowledge of control circuits, but do not work with them everyday.
What I am trying to do is add a simple on-delay timer (Fugi MS4SA) between a chuck closed button and the solenoid that actuates the chuck valve.
Problem: The manufacture of the pc. of equipment designed it so that if electrical power is lost the chuck stays closed. Activating the chuck close button on the robot removes power from the solenoid, not applies it. When the chuck open button is depressed the voltage is applied to the solenoid. Would this be called a normally closed valve?
One solution might be to replace the valve with a normally open valve, but the valve is part of a valve cluster specific to the pc. of equipment. Or abandon the original valve and change it to a 2-way 4-position valve?
I would rather not install a whole different valve. Is there a way to reverse the signal so that when the chuck close button is pushed 24V is applied to the timer instead of dropping to “0” volts?
What I am trying to do is add a simple on-delay timer (Fugi MS4SA) between a chuck closed button and the solenoid that actuates the chuck valve.
Problem: The manufacture of the pc. of equipment designed it so that if electrical power is lost the chuck stays closed. Activating the chuck close button on the robot removes power from the solenoid, not applies it. When the chuck open button is depressed the voltage is applied to the solenoid. Would this be called a normally closed valve?
One solution might be to replace the valve with a normally open valve, but the valve is part of a valve cluster specific to the pc. of equipment. Or abandon the original valve and change it to a 2-way 4-position valve?
I would rather not install a whole different valve. Is there a way to reverse the signal so that when the chuck close button is pushed 24V is applied to the timer instead of dropping to “0” volts?