View the thread, titled "Bit of advise with machine safty" which is posted in Commercial Electrical Advice on Electricians Forums.

I've noting against foot pedal used in an e stop circuit but to use them in the control circuit effectively as an extra stop button is a no no! In the factory where I work we have approx 100 transfer presses which are fully guard with interlock switches which are designed to knock off the machine when the guard is opened. Or are locked and cannot be opened until the machine has come to a stop. Our e-stop buttons are wired via piltz relays. Better safe than sorry! :)

I get your angle now but wasn't the way it came across and yes foot pedal machine control common pressure and release is just a start/stop not an E-stop but with single user operation and they are feeding product into rollers, cutters, or presses where the product is large enough to give them enough space to create a hazard then a foot bar E-stop can reduce the risk substantially ... i fitted one to a machine that pulls product into machine and the guy got his watch caught which dragged his hand in .... he crushed 3 fingers but had he not had the E-stop bar he would be looking at losing his arm.....the guards would have stopped his bulk been dragged in but little left of his arm if he couldn't stop it.
 
Dose any one have any information on designing e-stop circuit correctly or control circuit PDF files or even books they could recemend. Don't worrie I'm not doing the job but could come in handy with fault finding and just for my own knowledge so I don't end up in a simular situation in the future
 

Reply to the thread, titled "Bit of advise with machine safty" which is posted in Commercial Electrical Advice on Electricians Forums.

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