BeepBoopBop
Member
Sorry for the long narrative.
The factory I work for has asked our team to build a machine "in house". This is drastically different than what we have done over the years as far as just modifying existing machinery, or purchased machinery.
A little more detail to the subject is that this is a bushing loader machine that involves pneumatic cylinders, 3 & 5 axis robots, Servo Motors, and Conveyors, all controlled by a PLC. This is to load a bushing into an injection molding machine (IMM). There will be minor changes to the IMM (just interlocks) and the bushing machine is what we're building from scratch.
So my question is this. I am trying to find all the relevant information I can as far as standards that need to be followed when designing and installing machinery (just concerning the controls side of the build). Can you guys point me in the right direction to make sure I got all that's needed? Or make a reference to where I can find out this information. My goal is to be safe and informed while we design this. Also to follow anything OSHA may be requiring of us. The factory is located in the USA.
Also our plant "safety guy" has no idea about machinery safety. I literally watched this guy move a dangling safety switch out of the way to crawl under a piece of machinery (LOTO'd) to point out that a small oil spot on the ground is bad and needs cleaned up. Never even mentioned the safety switch that was broke off he moved out the way to get to the oil. So if you guys know how the whole "determining SIL" thing works, or where I can find that information I would be very grateful. I have never been part of that process nor have I witnessed it being done before. And I know this company I work for now doesn't even know what SIL is (its an older factory). Pretty much they just make sure people can't climb into machine while its running, climb in and turn it on, or stuff stops moving when an E-Stop is pressed. Which quite frankly is just about all they need in my personal opinion, I just can't justify it "by the book" why that's ok. My previous experience with SIL involved being told what SIL the machine needed to be and keep it to that. Using redundant safeties, using force guided relays, using Safety Controllers with EDM, coded safety switches, interlocking guards, "locking" Safety PLCs, installing fixed guards. etc...
The standards I know about are:
NFPA 70 for electrical wiring (I use this one a lot).
I "think" ANSI/ISA 84.00.01 or IEC 61511 covers the SIL stuff. but it specifically says process industries. So I don't know if it applies to Manufacturing Machines (Never read it before). Is there a different standard that we should be looking at?
We signed up for a UL508A class to help us get more familiar with anything that we might be missing.
Any help at all would be appreciated, thank you.
The factory I work for has asked our team to build a machine "in house". This is drastically different than what we have done over the years as far as just modifying existing machinery, or purchased machinery.
A little more detail to the subject is that this is a bushing loader machine that involves pneumatic cylinders, 3 & 5 axis robots, Servo Motors, and Conveyors, all controlled by a PLC. This is to load a bushing into an injection molding machine (IMM). There will be minor changes to the IMM (just interlocks) and the bushing machine is what we're building from scratch.
So my question is this. I am trying to find all the relevant information I can as far as standards that need to be followed when designing and installing machinery (just concerning the controls side of the build). Can you guys point me in the right direction to make sure I got all that's needed? Or make a reference to where I can find out this information. My goal is to be safe and informed while we design this. Also to follow anything OSHA may be requiring of us. The factory is located in the USA.
Also our plant "safety guy" has no idea about machinery safety. I literally watched this guy move a dangling safety switch out of the way to crawl under a piece of machinery (LOTO'd) to point out that a small oil spot on the ground is bad and needs cleaned up. Never even mentioned the safety switch that was broke off he moved out the way to get to the oil. So if you guys know how the whole "determining SIL" thing works, or where I can find that information I would be very grateful. I have never been part of that process nor have I witnessed it being done before. And I know this company I work for now doesn't even know what SIL is (its an older factory). Pretty much they just make sure people can't climb into machine while its running, climb in and turn it on, or stuff stops moving when an E-Stop is pressed. Which quite frankly is just about all they need in my personal opinion, I just can't justify it "by the book" why that's ok. My previous experience with SIL involved being told what SIL the machine needed to be and keep it to that. Using redundant safeties, using force guided relays, using Safety Controllers with EDM, coded safety switches, interlocking guards, "locking" Safety PLCs, installing fixed guards. etc...
The standards I know about are:
NFPA 70 for electrical wiring (I use this one a lot).
I "think" ANSI/ISA 84.00.01 or IEC 61511 covers the SIL stuff. but it specifically says process industries. So I don't know if it applies to Manufacturing Machines (Never read it before). Is there a different standard that we should be looking at?
We signed up for a UL508A class to help us get more familiar with anything that we might be missing.
Any help at all would be appreciated, thank you.