How to connect pneumatic system to Doosan
Looking to use pneumatics in your system but don’t know how to connect to Doosan robots? This how-to might be what you are looking for.
The robot’s control box (no matter what robot it is) it’s essentially an overwhelming PLC. Therefore, you need to use its digital outputs to send signals to solenoid valves that control the pneumatic system you designed.
Step 1: Wiring the solenoid valve 
- connect the solenoid valve to a +24V power supply (this can be Doosan)
- the other wire goes through a relay controlled by DO output
Step 2: Connect the pneumatics 
- connect the output ports of the valve to the two ends of the pneumatic cylinder for extension and retraction
- tip: add flow control valves to tune the speed of the cylinder
- plug compressed air into the inlet port of the solenoid valve
Step 3: Programming Doosan 
- here’s a simple example of code to control the valve through the robot
#extend cylinder
set_digital_output(1, ON) #replace number with the DO number where the valve is connected
wait(0.8) #wait for cylinder to fully extend
#retract the cylinder
set_digital_output(1, OFF)
wait(0.8)
Step 4: Better safe than sorry! 
- using pneumatics can be dangerous depending on your system so you need to be very careful with it
- always make sure to enclose you pneumatic system
- tip: make sure to design your solution taking safety into consideration to avoid making last-minute alterations that might set you back
- use emergency stops and label your pneumatics wiring as neatly as possible
- tip: if you are using suction cups or other parts that require a lot of air flow, make sure to connect these first to the distribution block so that you get as much compressed air as possible; also take into account the capacity of the compressor available and when choosing the parts make sure they comply to it
Step 5: Testing 
- test and tweak as needed
- make sure to disconnect the air from the valve when adjusting your system