The Parallel port is capable of provide the 5v logic from the data pins 2-9. This will be +5v when activated and 0v when off. We just need to grab that on off signal and use it to control our sprinkler vavle. In the diagram you will see how everything is connected. The 5v logic...
Check the diaphragm for decay or deterioration. Replace the diaphragm with another one if there are any signs of inflexibility or corrosion. Remember to line up the diaphragm with the screw holes, and put the spring back on top of it before replacing and screwing down the valve cover with th...
A solenoid is the cylindrical actuator that protrudes from the top of automatic sprinkler valves. A set of low voltage wires connects the solenoid to the automatic sprinkler control panel. The control panel sends an electrical current to the solenoid to activate the valve's watering cycle. Althoug...
Note:For my project I used a combination of a 12v siren, a 12v sprinkler controller, and a 12v air solenoid to trigger a variety of alarms. For the purposes of this tutorial we’ll be connecting only a siren - and I don’t recommend connecting anything other than that for real life u...
to protect the operator from flying metal shavings. Finally, multiple cutters sculpted the metal in a precise sequence. When the part was complete the mill retracted the tools, stopped all movements, and opened the guard so the human could remove the part and replace it with a new metal ...
On the output side of a signal chain or PLC, we monitor a system or we operate or move something. Table 3 shows things monitored or controlled by a PLC. Table 3. Things Monitored/Controlled by a PLC Output Valve Pressure Switch Motor Humidity Solenoid Pressure Force feedback Lights Velocit...