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???
04/14/05 16:15
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#91557 - Wiring & Filter
Responding to: ???'s previous message
At this time I don't have access to a better camera, but when I do I'll provide some better pix. So I'll try to explain the wiring in the box.

120VAC enters the back of the box through a fused power receptical (NO filters) hot is switched. The 120VAC splits off to the circuit board, the heater control and to one of three transformers that we use for different models, 12,18 or 24 volt. The secondaries go to 35 amp 600v bridge rectifier that DC then goes up to the board. The output from the heater control goes over to an IEC female socket at the back of the box. Safety ground goes from the entry receptical to the IEC female socket and is tied to the mounting feet of the transformer.
This wiring can be seen on page 16 of this document http://www.trcind.com/pdf/hc4.pdf
A cord plugs in to the IEC receptical an terminates at the terminal block shown in the last picture of my previous post and the safety ground is connected to the machine there.
Until I can get our camera back, that's the best picture I can paint.

Jon

List of 124 messages in thread
TopicAuthorDate
What do you think could happen if...            01/01/70 00:00      
   The 10k from RST to GND            01/01/70 00:00      
   Random resets..            01/01/70 00:00      
      Dogma.            01/01/70 00:00      
         Oh yea ?            01/01/70 00:00      
         Hmm            01/01/70 00:00      
            brown outs            01/01/70 00:00      
               Obscure            01/01/70 00:00      
                  RC Reset circuits.            01/01/70 00:00      
                     Something more to it ...            01/01/70 00:00      
                        ad wars between Maxim and Microchip            01/01/70 00:00      
                           Cutting teeth...            01/01/70 00:00      
                              recommend brown out detectors            01/01/70 00:00      
                                 Which depends on for what..            01/01/70 00:00      
                              built-in reset            01/01/70 00:00      
                                 Re: Built in brown out?            01/01/70 00:00      
                                    Better than I did....            01/01/70 00:00      
                                       Thanks, Michael.            01/01/70 00:00      
                                    Why            01/01/70 00:00      
                                       Other stuff ?            01/01/70 00:00      
                                       many reasons            01/01/70 00:00      
                                       Thats not correct.            01/01/70 00:00      
                        speak with forked tongue            01/01/70 00:00      
                           I agree            01/01/70 00:00      
         re: dogma            01/01/70 00:00      
      ESD events and EMI            01/01/70 00:00      
   Re: Random resets.            01/01/70 00:00      
   Lets not reject the obvious!            01/01/70 00:00      
      no R            01/01/70 00:00      
      RC-circuits are bullshit!!            01/01/70 00:00      
         RC-circuits are bullshit!!            01/01/70 00:00      
   Reset Capacitor            01/01/70 00:00      
      You missed the question!            01/01/70 00:00      
         Why guessing?            01/01/70 00:00      
            RE:Why Guessing            01/01/70 00:00      
               Timing            01/01/70 00:00      
   Update            01/01/70 00:00      
      not necessarily the reset            01/01/70 00:00      
         Other derivatives            01/01/70 00:00      
            if no cap            01/01/70 00:00      
               No Cap            01/01/70 00:00      
                  not just a cap, but the right cap            01/01/70 00:00      
                     Which cap?            01/01/70 00:00      
                        depends            01/01/70 00:00      
                     Yes Cap            01/01/70 00:00      
                        directly            01/01/70 00:00      
                           RE:Directly            01/01/70 00:00      
                              yes            01/01/70 00:00      
         Absolutely !            01/01/70 00:00      
   Update - ESD Problem?            01/01/70 00:00      
      some ways            01/01/70 00:00      
         some ways - more detail please            01/01/70 00:00      
            details            01/01/70 00:00      
               Car induction coil            01/01/70 00:00      
                  ESD Problem            01/01/70 00:00      
                     Physical Separation            01/01/70 00:00      
                     Few Ideas            01/01/70 00:00      
                        Re: Few Ideas            01/01/70 00:00      
                           Check your external ground            01/01/70 00:00      
                           Ya.            01/01/70 00:00      
                     now that you are willing            01/01/70 00:00      
                        RE:Now that you are willing            01/01/70 00:00      
                           alot easier when you know what your look            01/01/70 00:00      
                     Not as bad as initially thought.            01/01/70 00:00      
                        ground loop            01/01/70 00:00      
                           RE: Ground Loop            01/01/70 00:00      
                              sound            01/01/70 00:00      
                           RE: Ground Loop            01/01/70 00:00      
                              It is a loop AND            01/01/70 00:00      
                                 It's a loop and a flop            01/01/70 00:00      
                                    no shield can help you there            01/01/70 00:00      
                                       Kind of machine            01/01/70 00:00      
                                          so your testbench setup should be OK            01/01/70 00:00      
                                             Failures            01/01/70 00:00      
                                                in that case            01/01/70 00:00      
                                                   Materials            01/01/70 00:00      
                                                      could still be ground            01/01/70 00:00      
                                                         Noise resistance            01/01/70 00:00      
                                                            you will not find that            01/01/70 00:00      
                                                               What can be found?            01/01/70 00:00      
                                                                  tough these days            01/01/70 00:00      
                                                Glue ?            01/01/70 00:00      
                                                   No Glue            01/01/70 00:00      
                                                      lesse some pictures.            01/01/70 00:00      
                                                         LOL            01/01/70 00:00      
                                                            Nope            01/01/70 00:00      
                                                               Let the fun begin!            01/01/70 00:00      
                                                                  Confession            01/01/70 00:00      
                                                                     Confession            01/01/70 00:00      
                                                                        Ah.            01/01/70 00:00      
                                                                           Not that bad            01/01/70 00:00      
                                                                              HAr to see but            01/01/70 00:00      
                                                                                 Wiring & Filter            01/01/70 00:00      
                                                                                    Maybe a little better pictures here            01/01/70 00:00      
                                                                                       nice            01/01/70 00:00      
                                                                                       Oops - try again            01/01/70 00:00      
                                                                                          Uh Oh            01/01/70 00:00      
                                                                                             Yep            01/01/70 00:00      
                           Don't ground both ends of shield            01/01/70 00:00      
                        bonding            01/01/70 00:00      
                           RE: Bonding            01/01/70 00:00      
                              Useless....            01/01/70 00:00      
   Better Pix yet?            01/01/70 00:00      
      Re: Better Pics Yet?            01/01/70 00:00      
      DETAILS...            01/01/70 00:00      
         Nothing hiding here!            01/01/70 00:00      
            !!!!!            01/01/70 00:00      
               I don't think so.            01/01/70 00:00      
                  !!            01/01/70 00:00      
            Grounding.            01/01/70 00:00      
               Grounding            01/01/70 00:00      
                  Prahlads points            01/01/70 00:00      
                     Clarification            01/01/70 00:00      
                        Clarification            01/01/70 00:00      
   Update            01/01/70 00:00      
      au contraire            01/01/70 00:00      
   The answer may be on the horizon            01/01/70 00:00      
      not the voltage, but the change            01/01/70 00:00      
         Have a look see            01/01/70 00:00      
            I do not know how good            01/01/70 00:00      
               7805 Starving            01/01/70 00:00      
                  it will go HOT            01/01/70 00:00      
                     Heatsink            01/01/70 00:00      
                        or it's possible            01/01/70 00:00      

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