Hi, guys.
At first sorry for my english, im not english speaker.
Im trying learn ladder and i cant figure out this sequence;
i have 2 push buttons, 1 NO and another push button NO/NC;
4 reed switches A-A+B-B+
2 double acting cylinders
2 single acting solenoids
push button NO start cylinder A;
A+ (reed switch) active cylinder B;
B+ (reed switch) hold the A and B cylinders until i press NC/NO push button;
button pressed cylinder B retracted;
B- activated retracted cylinder A
I can make the sequence A+B+ and hold both cylinders but i cant figure out how to retracted in sequence B-A- and hold until i press start again.
Its possible to make this sequence work using single acting solenoids and double acting cylinders?
I can make this sequence work the way i want but the relay output (LEDS) start blink fast ON/OFF intermittently fast, its okay?
i brought one used PLC to learn at home because for me is more easy instead use just simulator, i can make timers, counters, basic stuff but im really stucked in this problem.
Thank you guys any direction will be welcome.
At first sorry for my english, im not english speaker.
Im trying learn ladder and i cant figure out this sequence;
i have 2 push buttons, 1 NO and another push button NO/NC;
4 reed switches A-A+B-B+
2 double acting cylinders
2 single acting solenoids
push button NO start cylinder A;
A+ (reed switch) active cylinder B;
B+ (reed switch) hold the A and B cylinders until i press NC/NO push button;
button pressed cylinder B retracted;
B- activated retracted cylinder A
I can make the sequence A+B+ and hold both cylinders but i cant figure out how to retracted in sequence B-A- and hold until i press start again.
Its possible to make this sequence work using single acting solenoids and double acting cylinders?
I can make this sequence work the way i want but the relay output (LEDS) start blink fast ON/OFF intermittently fast, its okay?
i brought one used PLC to learn at home because for me is more easy instead use just simulator, i can make timers, counters, basic stuff but im really stucked in this problem.
Thank you guys any direction will be welcome.