This is the last of our old grandfathered in hill billy engineer machines that I have to bring into the modern era. Adding an e-stop system is in the plan as well. I am still amazed that the electrical contractor who installed the machine when we moved to the new shop in 2008 agreed to put it in this way.
My plan was to put in a new panel with a disconnect and feed it with a 40amp 3-phase breaker from the main panel. Then from the disconnect split it off into 9 single phase breakers. There already are contactors and such in the control system, adding the e-stop loop will be very easy. ----- Original Message ----- From: "Dave Cole" <[email protected]> To: [email protected] Sent: Friday, February 5, 2016 10:30:50 PM Subject: Re: [Emc-users] Rewire Question? Todd, If you have multiple single phase breakers feeding that machine, that is probably not your only issue when it comes to Osha. You need a decent Estop system on the machine also which means at the least one or more Estop circuits and some contactors to drop out the power, or more appropriately, bring the machine to a speedy, yet safe stop. Lock out - tag out is only one of Osha's "hot buttons". You need a real control box or you need to adapt an existing control box. You can add a disconnect switch to an existing panel easy enough, but you also need downstream breakers from the disconnect as well as contactors. Dave On 2/5/2016 5:22 PM, Todd Zuercher wrote: > We have an old machine that through the years has become an ungainly ball of > wires. Currently with OSHA regs and all lockout tagout is a real pain as it > is on this machine. > > It is a gang router (didn't start out as one), and is connected to 9 > different single phase 110v breakers. One for each of the six 15amp routers > plus 3 more for the control, and motion. (that stuff totals at most another > 15amps.) > > Any suggestions for slimming this down so it could run off one set of wires > with a single disconnect at the machine? > ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
