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#21

Hawke's Bay / Re: Whizbang Jr and the Hawk's...

Last post by qrper - May 26, 2026, 02:33:50 PM

I have a Hawk's bay controller and the E-panel on it's way. Looking through the documents, I didn't see where the whizbang JR would fit into the E-panel.

Does it go inside the E-panel?

Hi.  I think I read that you own a Rosie.  If you have the Epanal for the Rosie, I believe a Whizbang Jr comes pre-installed on the shunt.  (Your Solar equipment 'list' below your signature does not list any Midnite equipment). If you don't have an Epanal for the Rosie, as Classic Crazy stated, the Whizbang JR mounts to the side of a shunt, assuming you have one in your system.

Dave

Dave...
 I do have a rosie, and a classic 150. The rosie has the e-panel, too.
Both have whizbang jr installed.

The WBJR in the rosie e-panel doesn't do much 'cause it's not the the charging loop from the classic. If I used the ac charger in rosie, then the WBJR reports SOC/ charging current and so on. Just not for solar charging. That's done by the WBJR in the classic's homebrew e-panel.

I don't know how I can use the WBJR in rosie, to work with the Hawk's bay.

I haven't gotten it all planned out yet, but I'm thinking of running #2 gauge wire from HWB to the 0000 cables inside the e-panel of the rosie. They (the pos and neg) run to the battery bank. Then connect negative HWB though WBJR, and then of course positive from HWB to the positive post in the e-panel of rosie.

Basically, I'd be using the Rosie E-panel as a tie in point for the HWB, using the large 0000 cables to run current to the batteries.

I won't be able to do much for a while, as I'm going to upgrade the PV so I can have 500ish V going in. Right now, I have my system at about 90V, way, way, too low for the HWB.

The plan is to upgrade the pv panels to 6.4Kw, using the HWB, and let the Classic hum along with some of the left over panels at 90V and 2kw or so.

So, if I were to use the WBJR inside the e-panel  for rosie, do I need to move the purple wire from rosie and route it to the HWB? Can I splice the purple wire and have it feed both the Roise and HWB?
Do I need to purchase another WBJR for the HWB?

mike


Apparently, there is no location for a WBJR inside the Epanel for the hawk's bay

#22

Hawke's Bay / Re: Whizbang Jr and the Hawk's...

Last post by aaapilot - May 26, 2026, 01:17:41 PM

I have a Hawk's bay controller and the E-panel on it's way. Looking through the documents, I didn't see where the whizbang JR would fit into the E-panel.

Does it go inside the E-panel?

Hi.  I think I read that you own a Rosie.  If you have the Epanal for the Rosie, I believe a Whizbang Jr comes pre-installed on the shunt.  (Your Solar equipment 'list' below your signature does not list any Midnite equipment). If you don't have an Epanal for the Rosie, as Classic Crazy stated, the Whizbang JR mounts to the side of a shunt, assuming you have one in your system.

Dave

#23

Hawke's Bay / Re: Whizbang Jr and the Hawk's...

Last post by ClassicCrazy - May 25, 2026, 10:29:38 PM

The Whizbang mounts on the shunt. So where ever that is located in the epanel would be the spot.
I made a video of mounting the Whizbang on my shunt for the Hawkes Bay though it was not in an epanel.
Also I stacked two whizbangs ( one was for Classic) though you would only put on one.
https://youtu.be/7t7lw8ryIxA
Larry

#24

Hawke's Bay / Whizbang Jr and the Hawk's bay

Last post by qrper - May 25, 2026, 05:59:52 PM

I have a Hawk's bay controller and the E-panel on it's way. Looking through the documents, I didn't see where the whizbang JR would fit into the E-panel.

Does it go inside the E-panel?

#25

Hawke's Bay / Re: Hawk's bay CAN connection ...

Last post by ClassicCrazy - May 18, 2026, 11:20:59 AM

I have a mnpg2 , hawkes bay, little rosie, mnpg2 , canbus adapter to raspberry pi. I can't even remember right now how I did it but I made a video explaining the canbus wiring . It still works though.
https://youtu.be/4lQMH0lgGTE
Larry

#26

Hawke's Bay / Hawk's bay CAN connection betw...

Last post by qrper - May 18, 2026, 10:45:25 AM

Gang..

Moving onto adding a Hawk's bay CC to my system. I have a rose inverter, a MNGP2 of course, and an upcoming Hawk's bay. Inside Rosie, I have the termination plug (for the can bus) installed, then a cat cable to the MMNGP2. Everything works fine.

Now, with the upcoming Hawk's bay, where does that fit into the can bus?

Should I move the termination plug to the Hawk's bay, and plug the Hawk's bay into the now opened socket (where the termination was at) in Rosie?

In my mind, Start with Hawk's bay. Termination plug inserted in it. Then cat cable to Rosie, cat cable to MNGP2.

Does that sound correct?

mike

#27

The Rosie / Re: Rosie taking a fit

Last post by qrper - May 16, 2026, 09:33:55 PM

"sizzling" sound on 2 different Rosies...  I would be looking at wires in breakers and terminals for loose or maybe a piece of wire insulation caught in there...

One step ahead of you. Checked all the wires coming in and out of, and found nothing. However that being said, would a loose wire cause a HW TEST fail?

The arcing seemed to come from the top, middle of the inverter.

So, far, so good. No issues.

#28

The Rosie / Re: Rosie taking a fit

Last post by Wizbandit - May 16, 2026, 08:01:08 PM

"sizzling" sound on 2 different Rosies...  I would be looking at wires in breakers and terminals for loose or maybe a piece of wire insulation caught in there...

#29

The Rosie / Re: Rosie taking a fit

Last post by qrper - May 16, 2026, 12:10:55 PM

Please take the cover off and look and see if by chance the foil on the inductors is touching the front cover. Feel free to email me ryan@midnitesolar.com I will keep an eye open this weekend

I pulled the front off, and didn't see any of the foil from the inductors touching anything.

When she doesn't have a knot in her panties, Rosie appears to work fine. So far, no more issues with shut downs.

#30

The Rosie / Re: Rosie taking a fit

Last post by qrper - May 16, 2026, 09:45:53 AM

Email me your contact information and serial number, I will get a replacement shipped out Monday.
JAMES
MNS Applications Engineer
Technical Support
support@midnitesolar.com
attn:James

Twice more last night, I got the HW TEST FAIL. Cycled power, and while standing in front of Rosie, I could hear what sounded like cracking, perhaps more of a sizzle sound coming from under the front panel. After that, the inverter has not failed again.

Now, that being said, I'm real iffy about letting this thing run when we're not a home. If Rosie takes a @*#&, then the frig will be off line, as well as 80% of my home.

This is the second Rosie I had. When I put power to it the first time, I got a lot of sizzle and arcing sounds. In talking to Ryan, I, and he agreed, there might have been a solder ball that was lodged into the circuits and though shipping Rosie (perhaps more than one solder ball?) got into a place that a solder ball shouldn't be. Thus the electrical noise—the arcing and snapping.

I'll get the serial number before monday

mike