Outback Fm-80 User's Manual

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1. Outback Fm-80 User's Manual 2016

Product Description

The FLEXmax family of charge controllers is the latest maximum power point tracking (MPPT) charge controllers from OutBack Power Systems. The innovative FLEXmax MPPT software algorithm is both continuous and active, increasing your photovoltaic array power yield up to 30% compared to non-MPPT controllers. With active c. PowMr 30A MPPT Solar Charge Controller 48V 36V 24V 12V Auto Max 190VDC Input Solar Charge for. This manual contains important safety, installation and operating instructions for the FLEXmax 30/40 Series Charge Controller. The following symbols are used throughout this manual to indicate potentially dangerous conditions or mark important safety instructions. WARNING: Indicates a potentially dangerous condition. Use extreme caution.

The FLEXmax family of charge controllers is the latest innovation in Maximum Power Point Tracking (MPPT) charge controllers from OutBack Power Systems. The innovative FLEXmax MPPT software algorithm is both continuous and active, increasing your photovoltaic array power yield up to 30% compared to non-MPPT controllers. Thanks to active cooling and intelligent thermal management cooling, both FLEXmax charge controllers can operate at their full maximum current rating, 60 Amps or 80 Amps respectively, in ambient temperatures as high as 104°F (40°C).

Included in all of the FLEXmax Charge Controllers are the revolutionary features first developed by OutBack Power, including support for a wide range of nominal battery voltages and the ability to step-down a higher voltage solar array to recharge a lower voltage battery bank. A built-in, backlit 80 character display shows the current status and logged system performance data for the last 128 days at the touch of a button. The integrated OutBack network communications allows FLEXmax series Charge Controllers to be remotely programmed and monitored via a MATE system display and provides unrivaled complete system integration.

FLEXmax MPPT Charge Controllers are the only choice when you demand a high performance, efficient and versatile charge controller for your advanced power system.

Comments

Outback Fm-80 User's Manual 2016

• #2

  I think that Outback end amps is good but it has been a long time for me. I know Schneider measures it accurately. Get a clamp-on meter and measure it near the end of absorption. That is the only accurate way besides the measuring SG.

  'we go where power lines don't' Sierra Mountains near Mariposa/Yosemite CA
  http://members.sti.net/offgridsolar/
  E-mail [email protected]
  
• #3

  The outback controller can use end amps (return amps). There are two ways.. if you have a flexnet DC you can base the end amps on the actual battery current (best way). If you don't have the flexnet, the controller can use its output as a measure of end amps, but the controller output is not the same as the battery input unless there are no loads and no other charging sources.
  --vtMaps
  

  4 X 235watt Samsung, Midnite ePanel, Outback VFX3524 FM60 & mate, 4 Interstate L16, trimetric, Honda eu2000i
  
• #4

  Hi Guys,
  Thanks for the responses, I understand that the FlexNet DC can measure the actual battery current - what I was looking for was some Outback-specific guidance on the correct configuration to make sure that the FM80 uses the value measured by the FlexNet to terminate charging rather than its own current measurement. At the moment I can't find anything conclusive in the manuals. There's an advanced setting for the FlexNet called 'Enable Charge Termination Control', but the description says 'allows the battery charging to be stopped for all inverters on the system, once the charging parameters of the Flexnet DC have been met' (emphasis mine). Not sure if this is just bad wording or whether this setting really does only apply to inverters and not charge controllers.
  Do I need to head over to the Outback forums to get an answer to this?
  Cheers,

  Outback VFX3048E, Outback FM80, Outback FNDC, Outback Mate3, Outback Hub4, 15x Munchen 250W panels (5x3), 8 x Rolls S605 (48V system)
• #5

  Do I need to head over to the Outback forums to get an answer to this?
  

  That would be a good idea. Their forums contain voluminous material on the flexnet. There is a way to get all the controllers and inverters to go to float, but I don't have a flexnet and can't guide you. Have you seen this document (attached)?
  --vtMaps
  

  4 X 235watt Samsung, Midnite ePanel, Outback VFX3524 FM60 & mate, 4 Interstate L16, trimetric, Honda eu2000i
  
• #6

  That would be a good idea. Their forums contain voluminous material on the flexnet. There is a way to get all the controllers and inverters to go to float, but I don't have a flexnet and can't guide you. Have you seen this document (attached)?
  --vtMaps
  

  Yeah, I've seen that document and I'm intending on following it - the only thing I was really looking for was clarity on whether the FNDC can really control the transition from absorb->float on the FM80 given the wording of the manual which somewhat suggests otherwise. I've found various topics skirting around the subject on the outback forums but nothing conclusive. Waiting for my registration to be approved there so I can ask directly..
  Cheers!
  

  Outback VFX3048E, Outback FM80, Outback FNDC, Outback Mate3, Outback Hub4, 15x Munchen 250W panels (5x3), 8 x Rolls S605 (48V system)
• #7

  Sounds like you have AGM batteries? I would be very concerned with them! Make sure if there are multiple controllers that they all are networked so that the absorb voltage does not spike above the set-point.

  'we go where power lines don't' Sierra Mountains near Mariposa/Yosemite CA
  http://members.sti.net/offgridsolar/
  E-mail [email protected]
  
• #8

  No, I have Rolls S605 flooded lead acid batteries, and only one FM80. I'm keen to get the absorb timing running based on the end amps reading from the FLEXnet DC, and I believe that this *should* work, it's just that the wording of the manual has me a little worried. I'm aware that I'll need to calibrate this by comparing the SG readings and making sure it's still actually charging the batteries fully, but it seems like it would be a more accurate way of setting the absorb time than just putting a time limit on it that takes no account of the actual charge state of the batteries.

  Outback VFX3048E, Outback FM80, Outback FNDC, Outback Mate3, Outback Hub4, 15x Munchen 250W panels (5x3), 8 x Rolls S605 (48V system)
• #9

  Hi Lucian,

  Am certain that you have seen the FNDC Topic on the OB Forum. There does appear to be some general disappointment with the functionality of the FNDC, there. Just in case, here is a Link:
  http://www.outbackpower.com/forum/viewforum.php?f=28

  I Agree, that EA is a very good way of ending Absorb, and have used EA, for over a decade on all systems here -- first with the OB MX-60s, and now with MidNite Classics and the WBjr current monitor, paired with the Classics. Just needed to tweak the Vabs and EA settings, quite recently, due to battery aging.

  Good Luck, Vic

  Off Grid - Two systems -- 4 SW+ 5548 Inverters, Surrette 4KS25 1280 AH [email protected], 11.1 KW STC PV, 4X MidNite Classic 150 w/ WBjrs, Beta KID on S-530s, MX-60s, MN Bkrs/Boxes. 25 KVA Polyphase Kubota diesel, Honda Eu6500isa, Eu3000is-es, Eu2000, Eu1000 gensets. Thanks Wind-Sun for this great Forum.
• #10

  No, I have Rolls S605 flooded lead acid batteries, and only one FM80. I'm keen to get the absorb timing running based on the end amps reading from the FLEXnet DC, and I believe that this *should* work, it's just that the wording of the manual has me a little worried. I'm aware that I'll need to calibrate this by comparing the SG readings and making sure it's still actually charging the batteries fully, but it seems like it would be a more accurate way of setting the absorb time than just putting a time limit on it that takes no account of the actual charge state of the batteries.

  Ok Flooded, you are overthinking this then. Even if you are off on the exact time for the battery to finish charging it is not a big deal.
  I am not saying that this is something to gloss over but it is the biggest advantage of flooded! You can measure SG and slight overcharges of voltage and time are not going to be a problem. Keep water above the plates, do your EQ's and keep the tops clean and you will be in the cat birds seat for many years.
  

  'we go where power lines don't' Sierra Mountains near Mariposa/Yosemite CA
  http://members.sti.net/offgridsolar/
  E-mail [email protected]