Author Topic: Force reset of WBJ AH meter - I mean FORCE  (Read 423 times)

5 Minutes 2 Midnite

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Force reset of WBJ AH meter - I mean FORCE
« on: March 27, 2018, 04:09:18 PM »
I know you can configure the WBJ to reset AH to zero upon full charge, but I swapped battery packs and need to force the AH meter to zero now. It still thinks the old pack is connected and giving me the reading for that pack.

I have already tried the following to reset AH to zero:

1) Completely power off the controller
2) Completely power off the power to the shunt
3) Turned the WBJ OFF from the local app
4) Changed the function of AUX 2, then put it back

I assume the reading is being saved in non-volatile ram or something. Can AH be forced to zero any other way? The pack is fully charged.


Qty 24 Sharp 153W poly panels, Midnite MNPV6 combiner, Magnum MS-4448-PAE inverter with RC50 remote, Magnum MMP Mini panel, Midnite Classic 150 charge controller, Qty 32 LiFePO4 72AH cells in 2 string 48V array. BMS.

Vic

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Re: Force reset of WBJ AH meter - I mean FORCE
« Reply #1 on: March 27, 2018, 04:19:51 PM »
Hi 5 - 2..,

On the MNGP,  press the Status button four or five times to see the WBjr Status  --  the one that shows Amps into/out of the battery,  etc.

Press the Left Soft button "More",  for the Net Ah,   Remaining AH,  etc display.
Now press and hold the Left Arrow button,  while pressing and holding the Enter button.   This should reset the Net Ah to zero.

This should do it,   from the MNGP.
Please let us know if this works,   Vic
Off Grid - Two systems -- 4 SW+ 5548s, Surrette 4KS25 1280 AH X2@48V, 11.1 KW STC PV, 3X MidNite Classic 150 w/ WBjrs, Beta KID on S-530s, MX-60s, MN Bkrs/Boxes.  Thanks MN for Great Products/Service/Support!

5 Minutes 2 Midnite

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Re: Force reset of WBJ AH meter - I mean FORCE
« Reply #2 on: March 27, 2018, 10:37:58 PM »
Yeah, that did it. Thanx!
Qty 24 Sharp 153W poly panels, Midnite MNPV6 combiner, Magnum MS-4448-PAE inverter with RC50 remote, Magnum MMP Mini panel, Midnite Classic 150 charge controller, Qty 32 LiFePO4 72AH cells in 2 string 48V array. BMS.