Hi experts, I have a question about requirements for emergency switches used in machinery placed on market in EU. The machine complies to MD by compliance with amongst others EN 60204-1:2006 and has a full compliant emergency switch installed for USERS easy activation during normal use. Now my question is i have no where seen a requirement that another emergency switch should be available for SERVICE personel on say the back side or other place of the machine, as he/she might not have easy access during a service situation. The machine is not very large but a service person might not be able to reach the normal users switch when working on the back f.ex. Can anyone point out a requirement in EN 60204-1 or any other MD related standard that states the need for this ? The service person can of course disrupt the power using the main safety switch off device (lockable), and further he is expected to be somewhat more aware of dangers related to his job. Another question, is it allowed to add several emergency switches in parallel with the existing if wanted (currently it has one NC and one NO contact connected through a safety relay), but it would be possible to add screw terminals for further expansion (limited only by relays capacity) if needed. Hopefully above makes somewhat sence and a machinery experts l ikes to comment on this, have a nice day. Best regards Peter - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/
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