Proper Outlet Voltages and Ground

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  • Keychain
    Technician
    • Mar 2009
    • 14
    #1

    [Electrical] Proper Outlet Voltages and Ground

    Hey All ! I have a customer with a badly grounded outlet, causing error codes.
    Of course the cust doesn't believe it because their 'old copier worked just fine'.
    Am trying to find an official chart showing what the proper voltages and grounding requirements are for modern MFPs.
    Anyone out there who can link a PDF or website?
    I had a printout from when I was trained on the Kyocera Falcon 2 in Dallas, but I cant find it.
    Tags: ages, codes, copier, customer, error, falcon, km8030, kmc3232, kyocera, pdf
    • mrwho
      Major Asshole!

      Site Contributor
      2,500+ Posts
      • Apr 2009
      • 4299
      #2
      Googling for "propper earthed electrical outlet" found out this one. Although the explanation is quite good (in my non-expert opinion) I don't know if it sounds official enough for you. You could try to search it yourself and check the other hits.
      ' "But the salesman said . . ." The salesman's an asshole!'
      Mascan42

      'You will always find some Eskimo ready to instruct the Congolese on how to cope with heat waves.'
      Ibid

      I'm just an ex-tech lurking around and spreading disinformation!

        Comment

        • Hemlock
          Trusted Tech

          250+ Posts
          • Dec 2009
          • 432
          #3
          What kind of machine did they have and what are you installing?
          “Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that 'my ignorance is just as good as your knowledge.'” (Isaac Asimov)

            Comment

            • Keychain
              Technician
              • Mar 2009
              • 14
              #4
              Found it..
              Neutral to Ground .5V AC or less...
              Customers is.7 to 1.8 with a 'HOT' as high as 128V ... not good...
              Thanks all...

                Comment

                • blackcat4866
                  Master Of The Obvious

                  Site Contributor
                  10,000+ Posts
                  • Jul 2007
                  • 22999
                  #5
                  As a reference, I've always used 120vac +/- 10% (108 to 132vac), and less than 1v neutral to ground (this is the troublesome one).

                  To properly document this you need to set up a power quality analyzer, and record events for 48 hours. Here is where you'll see the really interesting stuff. =^..^=
                  If you'd like a serious answer to your request:
                  1) demonstrate that you've read the manual
                  2) demonstrate that you made some attempt to fix it.
                  3) if you're going to ask about jams include the jam code.
                  4) if you're going to ask about an error code include the error code.
                  5) You are the person onsite. Only you can make observations.

                  blackcat: Master Of The Obvious =^..^=

                    Comment

                    • davidj7
                      Service Manager

                      Site Contributor
                      1,000+ Posts
                      • Jan 2009
                      • 1107
                      #6
                      its a tough one to explain , neutral to ground. Most people dosent understand that grounding is very important for electrical equipment .
                      a machine is only as good as your tech : source:screwtape ; the scary one

                        Comment

                        • KenB
                          Geek Extraordinaire

                          2,500+ Posts
                          • Dec 2007
                          • 3944
                          #7
                          Although the 1.8 volts between neutral and ground is a bit out of spec, I really doubt that it's severe enough to cause errors.

                          The 128 volts between neutral and hot should pose no problem.

                          If the power keeps fluctuating excessively, even if it stays between acceptable highs and lows, however, you can experience all kinds of goofy issues.

                          As recommended by Blackcat, a power monitor is your friend here. Put one on the line and let it run for at least 2 days (I try to let it stay for a week, if possible). The results can be eye opening.

                          If you don't have one, it's well worth the investment for your shop. You can get a decent unit for just under $500.
                          “I think you should treat good friends like a fine wine. That’s why I keep mine locked up in the basement.” - Tim Hawkins

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