bryan372002
Member
- Join Date
- Apr 2005
- Posts
- 72
ok Back to see how much poo i can stir with this One.lol
right off the bat, here is exactly what the project sheet reads, Word for Word.
The Plant Engineer has given Us instructions to fix the operation of the index Machine so it cannot be started without both hands and feet are in the clear. the problem has been in the past that people have been getting there arms and legs in the machine and the machine breaks them off. this is a great expense to the company having to train new people and pay insurance settlements. our job is to put an end to this expense by putting an anti-tie-down circuit in. the only way the machine can start is 2 foot switches must be made and 2 palm switches must be made at the same time before the machine will Index.
Material need for this project is
2- start buttons
2- timers
2- foot switches
1- relay
Now before we go any further this is additional info i have been able to coax from the instructor.
if the 2 foot switches, OR the 2 palm switches are made for more than 3 seconds timer 1 will time out and not allow the machine to index. this way neither the foot switches or palm switches can be tied down and allow the machine to index.
Guys i dont want solutions to the ladder logic, Just help with trying to figure Out, a good layout of the logic statements
right off the bat, here is exactly what the project sheet reads, Word for Word.
The Plant Engineer has given Us instructions to fix the operation of the index Machine so it cannot be started without both hands and feet are in the clear. the problem has been in the past that people have been getting there arms and legs in the machine and the machine breaks them off. this is a great expense to the company having to train new people and pay insurance settlements. our job is to put an end to this expense by putting an anti-tie-down circuit in. the only way the machine can start is 2 foot switches must be made and 2 palm switches must be made at the same time before the machine will Index.
Material need for this project is
2- start buttons
2- timers
2- foot switches
1- relay
Now before we go any further this is additional info i have been able to coax from the instructor.
if the 2 foot switches, OR the 2 palm switches are made for more than 3 seconds timer 1 will time out and not allow the machine to index. this way neither the foot switches or palm switches can be tied down and allow the machine to index.
Guys i dont want solutions to the ladder logic, Just help with trying to figure Out, a good layout of the logic statements