Electrical issues

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  • secrtwpn
    Lieutenant Commander
    • Feb 2012
    • 182
    #1

    Electrical issues

    Recently, my Blueback ran well at our latest lake outing. However, I had an electrical issue towards the end of the day. So, when I got home, I tried some trouble shooting. When I turned everything on, the ESC would not come up. My system has the Mtroniks Viper Marine 10 ESC and a Sombra SL8 receiver.

    I switched out radios, programmed the SL8 to it, same thing.

    I switched out receivers (one I bought from SubTech, now I believe carried by Nautilus models). The radio is a Vex 6 channel. Same thing, but now everything works intermittently. I do not as yet have a BEC connected. When I wiggle the connections to the receiver, the ESC works for a moment, then shuts down. When I had the Subdriver open, I cleaned up my solder connections on the motor and bought a tool to crimp the bullet connectors.

    Batteries are fully charged

    Could my ESC be kaput?

    Any help would be greatly appreciated!!!!

    Farlan

    Tags: None
    • He Who Shall Not Be Named
      Moderator
      • Aug 2008
      • 12310
      #2
      Originally posted by secrtwpn
      Recently, my Blueback ran well at our latest lake outing. However, I had an electrical issue towards the end of the day. So, when I got home, I tried some trouble shooting. When I turned everything on, the ESC would not come up. My system has the Mtroniks Viper Marine 10 ESC and a Sombra SL8 receiver.

      I switched out radios, programmed the SL8 to it, same thing.

      I switched out receivers (one I bought from SubTech, now I believe carried by Nautilus models). The radio is a Vex 6 channel. Same thing, but now everything works intermittently. I do not as yet have a BEC connected. When I wiggle the connections to the receiver, the ESC works for a moment, then shuts down. When I had the Subdriver open, I cleaned up my solder connections on the motor and bought a tool to crimp the bullet connectors.

      Batteries are fully charged

      Could my ESC be kaput?

      Any help would be greatly appreciated!!!!

      Farlan
      So, the receiver bus (as currently configured) is getting all power from the ESC's BEC? That's likely your problem. That BEC is only good for 1.5-2A's which won't hold the load with all servos and other devices working. Put a dedicated BEC in there -- something rated for at lease 3A -- and all will be right with the world again.

      David
      Who is John Galt?
        👍 1

        Comment

        • secrtwpn
          Lieutenant Commander
          • Feb 2012
          • 182
          #3
          I will give it a try! Thanks!

            Comment

            • QuarterMaster
              Rear Admiral
              • Sep 2015
              • 1198
              #4
              Originally posted by secrtwpn
              I will give it a try! Thanks!
              Please provide feedback on success as well.
              v/r "Sub" Ed

              Silent Service "Cold War" Veteran (The good years!)
              NEVER underestimate the power of a Sailor who served aboard a submarine.
              USS ULYSSES S GRANT-USS SHARK-USS NAUTILUS-USS KEY WEST-USS BLUEBACK-USS PATRICK HENRY-K432-U25-SSRN SEAVIEW-PROTEUS-NAUTILUS

                Comment

                • trout
                  Admiral
                  • Jul 2011
                  • 3547
                  #5
                  Bob made a suggestion (on another forum) to use a separate battery pack to power the RX (and disengage the ESC BEC power). I think that is a brilliant suggestion to eliminate BEC or wiring issue. Farlan, keep us in the loop on what you try!
                  If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.

                    Comment

                    • secrtwpn
                      Lieutenant Commander
                      • Feb 2012
                      • 182
                      #6
                      I will. I'm waiting on a BEC....

                        Comment

                        • secrtwpn
                          Lieutenant Commander
                          • Feb 2012
                          • 182
                          #7
                          So, I finally got my BEC's. Plural because I am saving one for a future project. I soldered it up and hooked it up......No issues with the ESC. And as Merriman said, "all will be right with the world again" As well as can be expected today......

                            Comment

                            • He Who Shall Not Be Named
                              Moderator
                              • Aug 2008
                              • 12310
                              #8
                              Originally posted by secrtwpn
                              So, I finally got my BEC's. Plural because I am saving one for a future project. I soldered it up and hooked it up......No issues with the ESC. And as Merriman said, "all will be right with the world again" As well as can be expected today......
                              So …. the system is working OK?

                              David
                              Who is John Galt?

                                Comment

                                • secrtwpn
                                  Lieutenant Commander
                                  • Feb 2012
                                  • 182
                                  #9
                                  Yes it is!!!!!!!!!!!! Thx

                                    Comment

                                    • He Who Shall Not Be Named
                                      Moderator
                                      • Aug 2008
                                      • 12310
                                      #10
                                      Originally posted by secrtwpn
                                      Yes it is!!!!!!!!!!!! Thx
                                      Excellent. And good planning getting that extra BEC for a future project. Never trust a ESC's BEC!

                                      David
                                      Who is John Galt?

                                        Comment

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