Loading ...
Sorry, an error occurred while loading the content.

Re: [solectria_ev] NLG4 problems WAS Re: '97 Force CALB 100 Upgrade

Expand Messages
  • Tom Hudson
    Incidentally, I finished mounting the NLG5 in the Force this afternoon -- built up a pretty nice adapter out of aluminum that allows the NLG5 to bolt in where
    Message 1 of 43 , Nov 2, 2012
    • 0 Attachment
      Incidentally, I finished mounting the NLG5 in the Force this afternoon -- built up a
      pretty nice adapter out of aluminum that allows the NLG5 to bolt in where the NLG4 used
      to, and allows for easy bolt-free removal of the charger if necessary. Took me a while to
      figure out a good way to do this; I thought it was odd that the NLG5 has no mounting
      flange, bolt holes, etc. but this gets around it in a fairly simple way.

      Photos are at http://groups.yahoo.com/group/solectria_ev/photos/album/2099670287/pic/list

      -Tom

      On 11/2/2012 12:27 PM, Tom Hudson wrote:
      >
      > Yeah, that's a pretty classic failure mode. You should have seen Mike Rydjord's charger
      > he sent me for repair several years back. The arcing from one of the caps (failure at a
      > solder joint) had really hosed one of the PCBs. Did a fair amount of radical
      > reconstruction on it and got it working again; luckily the problem was localized and it
      > hadn't taken out other major components.
      >
      > Facing facts, these chargers are getting to be upwards of 17 years old, and they take
      > quite a beating thermally. I still have a bunch of them in my shop that I need to get to
      > Wolf if he still wants them -- lots of parts in those -- but I just got tired of
      > constantly having to mess with mine to keep them working. I wasn't crazy about spending
      > the bucks on a couple of NLG5s but they just work without me having to spend many hours
      > opening them up and troubleshooting them.
      >
      > Getting these higher-capacity battery packs kind of magnifies the problem -- much longer
      > charge cycles for the chargers means more wear and tear.
      >
      > -Tom
      >
      > On 11/2/2012 12:05 PM, geo_homsy2 wrote:
      > >
      > > Ahhhhh, the "half power" problem. I never heard of it before, but it makes sense, given
      > > what happened to my NLG4 last week.
      > >
      > > My NLG4 has been running at half power ever since I started monitoring it a few weeks
      > > ago. I just thought it was doing that for some "good" reason. And, the current was
      > > jittery. Again, I thought that's just the way it is.
      > >
      > > Then, last week, it bit it, big time. Opening up revealed the cap board had zorched on
      > > one side.
      > >
      > > So, my guess is that it was running at half power 'cause one side was marginally smoked
      > > for a LOOOOONG while, and it finally bit the dust when it got so bad that the input
      > > fuses finally blew?
      > >
      > > Does this make sense to anyone/everyone? Anyone seen this problem before? Tom? Wolf?
      > >
      > > //Geo
      > >
      > >
      >
      > --
      > Thomas Hudson
      > http://portev.org -- Electric Vehicles, Solar Power & More
      > http://klanky.com -- Animation Projects
      >
      > [Non-text portions of this message have been removed]
      >
      >

      --
      Thomas Hudson
      http://portev.org -- Electric Vehicles, Solar Power & More
      http://klanky.com -- Animation Projects



      [Non-text portions of this message have been removed]
    • m_sev@juno.com
      I think my charger (picture attached - label is illegible) is over-charging my batteries, can anyone point me in the direction of how to check and change the
      Message 43 of 43 , Nov 21, 2012
      • 0 Attachment
        I think my charger (picture attached - label is illegible) is over-charging my batteries, can anyone point me in the direction of how to check and change the programming?

        Thanks,
        Mark

        ---------- Original Message ----------
        From: "geo_homsy2" <geo.homsy@...>
        To: solectria_ev@yahoogroups.com
        Subject: [solectria_ev] Questions on NLG4 programming -- please help
        Date: Tue, 20 Nov 2012 19:08:50 -0000

        I have a few questions about NLG4 programming. Perhaps someone can help me.

        Specifically, I do not understand the following aspects of my default solectria charge profile (this was for the 13x Deka G27). Not understanding aspects of the factory profile, makes it very difficult for me to program a new profile.

        Here are my points of confusion:

        In section 1 of the profile, the U-limitation is 183.3. However, there is a criterion to pass to the next section, of "absolute voltage above 195.00". How in the world could this condition ever obtain, if the U-limitation is 183.3??

        Similarly, in section 2, the I-limitation is 3 amps. However, there is a condition to pass to previous section, of "Absolute current above 25 Amp". How can this condition ever be true?

        Also in section 2, there is a pass-to-next criterion of "multiplicated charge sum above 0.0". How is this condition ever NOT immediately true???

        What in the world is going on here? These conditions are absolutely meaningless, unless I really do not understand what the settings mean.

        And one final question: When does the charger decide to switch off? In section 3 of my original solectria profile, I-limitation is 9 amps, and U-limitation is 176.8 volts. There are no previous or next conditions. The green light (output 4) is on. Somehow, something in this section switches the charger off. Is it output 4? If so, then why is I-limitation set to non-zero???

        Does anyone have any elucidation for me? Or does anyone have a better manual for the NLG4 that discusses programming in more detail?

        Many thanks,

        //Geo





        ------------------------------------

        Yahoo! Groups Links



        Fat Burning Coffee Bean
        Mississippi: celebrity doctor uncovers his #1 way to burn fat fast.
        http://thirdpartyoffers.juno.com/TGL3131/50ad7a0b9c0f37a0b7b7cst03duc

        [Non-text portions of this message have been removed]
      Your message has been successfully submitted and would be delivered to recipients shortly.