Hello, Couple of thoughts. We might consider the UPS to be a second power source for the machine, which may warrant signage (multiple power sources). Or, similar to condensation heaters for machine enclosures that are powered from the disconnect mains, in the past we’ve added signage to indicate there is live power in the machine even when the disconnect is turned off. I don’t have chapter and verse handy, but NFPA79 and UL508A may have guidance. To be transparent, my focus is more North American and I do not have very much experience with EN standards.
This is my first post. You have all taught me a great deal through this forum, and this is my small attempt to help pay it back. Hope this is useful. Thanks, James *James Asbury* Electrical Engineering Manager Innovation and Development Sealed Air [email protected] On Wed, Aug 2, 2023 at 5:24 PM Doug Nix <[email protected]> wrote: > Colleagues, > > I have a client who has installed a COTS UPS in an industrial control > panel. The UPS is being used to keep the HMI alive in a power outage or if > the disconnecting device is switched off. > > I have scoured the resources that I have, and I can find nothing that > requires a label on the outside of the panel to indicate that there is a > UPS inside. EN 60204-1:2018 does not address this. I have a copy of EN IEC > 62040-1, and it does not require a hazard warning label anywhere. > > Any guidance you might offer is appreciated. > > Doug Nix > [email protected] > +1 (519) 729-5704 > > ------------------------------ > > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to All > emc-pstc postings are archived and searchable on the web at: > https://www.mail-archive.com/[email protected]/ > > Website: https://ewh.ieee.org/soc/pses/ > Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to > unsubscribe) <https://ewh.ieee.org/soc/pses/list.html> > List rules: https://ewh.ieee.org/soc/pses/listrules.html > > For help, send mail to the list administrators: > Mike Sherman at: [email protected] > Rick Linford at: [email protected] > > For policy questions, send mail to: > Jim Bacher at: [email protected] > ------------------------------ > > To unsubscribe from the EMC-PSTC list, click the following link: > https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 > - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/[email protected]/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: [email protected] Rick Linford at: [email protected] For policy questions, send mail to: Jim Bacher: <[email protected]> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
