PJ is standing me up......

I might suspect the DIP switches on the output board haven't been set?  These basically shunt the amperage feedback sensor--and if not set at all, it'll have a very low threshold to overloading.  (However, I have no idea what the proper settings would be.)

I guess I will see if the dip's are set. And maybe set to same as the 20kw. Thanks for the reply. You guys are awesome

CrazyDave, I would be very interested in knowing what the settings are on your 20kw pj dip switches (SW1).  Powerjack won't say how to set them.  It is only thanks to Sid that we even know what they do!

There should be a 'table' that shows which switches do what and how to set them for a particular inverter.  If one exists, nobody, including Sid and Sean, admit to ever seeing one.

I have been writing down the settings for SW1 for various inverters with the hope of eventually figuring something out.  Would love to add your 20kw to the list.  And if your 30kw is actually set I'd like to know what it is set to as well (in case that isn't the problem on yours)

Now that I think about it, all of us here should compare settings on every size pj we all have and see what we get....  Or maybe just send all our settings to Sid and let him build a table.... (Sid doesn't have enough to do... 😁)

2 hours ago, dochubert said:

Now that I think about it, all of us here should compare settings on every size pj we all have and see what we get....  Or maybe just send all our settings to Sid and let him build a table.... (Sid doesn't have enough to do... 😁)

It'd be pretty easy to whip up a simple form on a web page to do that.  All the author would need to know is how many dip switches are involved and the inverter options - ie, 20kW, 12v (an option to say stop laughing could be added for this sort of configuration)

2 hours ago, dochubert said:

If one exists, nobody, including Sid and Sean, admit to ever seeing one.

I have heard rumors from Sean that there may be a table of sorts for the smaller inverters.  Never seen it myself.
 

2 hours ago, dochubert said:

I have been writing down the settings for SW1 for various inverters with the hope of eventually figuring something out.  Would love to add your 20kw to the list.  And if your 30kw is actually set I'd like to know what it is set to as well (in case that isn't the problem on yours)

So the sensor here: it's the E128-LF-L (for <9kw inverters) and E135-LF-L (for 9kw+ inverters).  This transformer measures current on L1, and it is used for both overload protection (hint, hint, no overload protection on L2 - N) AND battery charge current limit.

The (10) position DIP switches on the E128 (small) output boards have 10 resistors...so basically 1,024 combinations here...

The (10) position DIP switches on the E135 (big) output boards have 5 resistors...so 32 combinations there.  They're visibly doubled, so 1-2, 3-4, 5-6, etc. are all paralleled.

2 hours ago, dochubert said:

(Sid doesn't have enough to do... 😁)

Hey now 🤪🤯

Cool!  How soon after you stop laughing can you have it ready?

Thanks Sid.  The info trickles out and I learn a little more with each bit....

I have had a similar experience with powerjack communication.  I tried to buy powerjack parts from two different ebay sellers and was denied the ability to bid or 'buy it now' from either one.  "The seller isn't accepting bids from you at this time"  WTF?  I have no ebay issues.  I've purchased powerjack parts and inverters from other ebay sellers without problems.  I have great feedback.  I pay promptly.  Why would any seller not want to sell to me?  I've never dealt before with either of those two sellers so how did they pick me to block?  Tried emailing the two sellers.  crickets.

Never got an answer to any of that.  I was simply told that a seller can deny selling to whomever they choose.  On further inquiry it seems those two sellers are both 'shell companies' for powerjack.  I emailed Helen at the powerjack website about it.  She replied, ignoring the question of the two ebay sellers and asking what I wanted to buy and for what inverter?  I answered and never got another email.  Sent 3 more.  crickets.

I had dealings with Helen years ago.  Very nice and very helpful.  Don't know what but something has changed....

I    check  ebay  for  powerjack  inverters  available  by  2  ebay sellers .  All  the powerjack  inverter  are of a new design .  I   think  the  control board  for all  older  powerjack  will  no longer be available .   

Not like there is a significant difference between the v4.0 control board and the new v11 control boards.  Same connectors, mostly the same circuit (v11 finally introduced a few changes), same functions, same CPU code, etc.

The 20kw board has all 10 dips on. and the last spot for a resister is empty. On the 30kw board all dips on with added resister to empty spot. Worst solder job I have ever seen, lol

15kw has 1-2 off 3-4 5-6 on, 7-8 9-10 off

So even with it set up like this (all switches on), it's still tripping out under moderate load?

Around 8-10kw it seems. A/C is whole house at 240v 9600 watts or so. Our 15KW 48v PJ had no problem running same plus pool pump and other things fridge/lights other then some extra cooling. 

I did change out board with one with out the last resister but I have not load test with A/C as of yet.

The  15kw  may  output  more  than  the 20kw  because  the  full size mainboard  and the 20kw  has the mni mainboard  and  2 capacitors and   4 mosfets  per board  .   Your  15kw  running  9600 watts is good .     Thank you for the  information  on dip switches .   

Both 15Kw and the 20Kw have 6 mosfets per set and 5 capacitors each. Also the 30Kw has 6 mosfets per set and 6 capacitors in each board.