Hello,
Currently I'm working on a university project based on Star/Delta Starter on PLC.
I wrote program using LD, that switches on the circuit with a motor rotating forward (of course with star/delta starter - here I've used TON timer), then with another start button called "Start back" after pressing "STOP" I can turn the motor on backwards. Everything is working fine. Now I'm trying to figure out how I can set the delay after pressing STOP button (let's say 8 seconds) to block user with pressing START button with another direction.
For example, motor has been started forward, then we press stop and we cannot press "START BACK" until 8 seconds will elapse (to secure the motor).
I was trying to use TOF timer 2 times (one timer for Forward and one for Backwards) but it doesn't solve the problem.
Is there any logic way to solve this problem?
Thanks in advance,
Cheers
Currently I'm working on a university project based on Star/Delta Starter on PLC.
I wrote program using LD, that switches on the circuit with a motor rotating forward (of course with star/delta starter - here I've used TON timer), then with another start button called "Start back" after pressing "STOP" I can turn the motor on backwards. Everything is working fine. Now I'm trying to figure out how I can set the delay after pressing STOP button (let's say 8 seconds) to block user with pressing START button with another direction.
For example, motor has been started forward, then we press stop and we cannot press "START BACK" until 8 seconds will elapse (to secure the motor).
I was trying to use TOF timer 2 times (one timer for Forward and one for Backwards) but it doesn't solve the problem.
Is there any logic way to solve this problem?
Thanks in advance,
Cheers