Batrium BMS Fault Logs

400bird

Member
Joined
Apr 27, 2020
Messages
78
I could use some help with my Batrium.

Last night it was nearing the discharge limit of my inverter and I was watching to see how the inverter transitioned.
To my surprise the Batrium must have set a critical fault, because it opened the shunt trip breaker.

Is there a fault log to see why the Batrium opened the breaker?

My cell voltages and temperatures were good enough.
I don't have the Ah entered accurately, so the SOC at the time was -1.5%
This was likely the cause, but I would like to know if there is a fault log.
 

OffGridInTheCity

Well-known member
Joined
Dec 15, 2018
Messages
1,462
On the Tools menu, they advise you do a "Snapshot Report" while the critical event is present - and then you can read thru the data dump and see what value is causing it. Note that you can also get it to do this automatically every 5 mins. This may work for you - hasn't worked so well for me as I can never find what is causing my fault :)
1616510954095.png
 

400bird

Member
Joined
Apr 27, 2020
Messages
78
Well, would you look at at that! My critical event was on and I have a log.
I don't see the issue, do you?



System - SYS
WatchMon
TimeStamp 3/21/2021 11:55:06 PM
----------------------------------------------------------------------------------------
System status information
Device Time Startup Ambient Supply
3/22/2021 5:55:17 PM 3/20/2021 7:08:10 AM -40ºC 45.31v

Versions Hardware Firmware Software SerialNo
5.3 5.5 2.0.14

OpStatus AuthMode CMU Mode
Empty Default Normal

SysFaults: WizardSetupRequired,
----------------------------------------------------------------------------------------
Live status information
Min @ ID Max @ ID Avg Repeat
CellVolt 3.07v @ 6 3.43v @ 12 3.29v 302
CellTemp 22ºC@ 10 25ºC@ 6 23ºC
BypassAmp 0.00A @ 0 0.00A @ 0
BypassTemp 14ºC@ 1 15ºC@ 15
BypSession 0.0mAh@ 0 628.0mAh@ 19

Total Overdue +Final +Initial InBypass
NumOfCells 28 0 0 0 0

SoC% Temp Volt Amp
Shunt -1.5% 36ºC 46.02v -0.174A

ToEmpty ToFull
Nom Capacity -1.666 101.666
Est Duration 45.5d 45.5d
Recent Consume 10.533 0.000
----------------------------------------------------------------------------------------
Expansion board
Input Run/Idle = off
Input Charge/Normal = off
----------------------------------------------------------------------------------------
Critical logic
control BattOK state
status LowAmbient, LowIdleShuntVolt,
----------------------------------------------------------------------------------------
Charging logic
control LIMP state
Idle Bypass: off
status LowAmbient, LimitedShuntVolt,
----------------------------------------------------------------------------------------
Discharging logic
control OFF state
status LowCellVolt, LowAmbient, LowShuntVolt, PauseShuntVolt, LowShuntSoC, PauseShuntSoC,
----------------------------------------------------------------------------------------
Thermal Heating Logic
control OFF state
status LowAmbient,
----------------------------------------------------------------------------------------
Thermal Cooling Logic
control OFF state
status LowAmbient,
----------------------------------------------------------------------------------------
Remote Logic
ActV ActA TgtV TgtA state
Charge 0.0v 0.0A 58.1v 0.8A LIMP state
Dischg 0.0v 0.0A 0.0v 0.0A OFF state
----------------------------------------------------------------------------------------
Daily Session information
Min Max
CellVolt 3.04 4.31
Thermal 9 27
ShuntSoc -1.5 101.5
ShuntVolt 45.73 57.34
SupplyVolt 44.89 56.65
Critical Events 0

Charge Dischg
ShuntPeak 29.02 47.68
Cumulative 67.575 125.757

Banding(hr) A B C D E F G H
SoC% 3.4 1.8 2.7 2.6 5.9 0.7 0.2 0.6
Thermal 0.0 0.0 0.0 0.0 12.7 5.2 0.0 0.0
----------------------------------------------------------------------------------------
Cell Node information
ID Bypass Initial Session Amp MinV MaxV MaxT BypT HiT HiBypT LoV HiV BypV BypA DatEr Reset CalV RepCV Serial HwVers
1 3/21/2021 5:35:40 PM 50.3 mAh 0.00A 3.35v 3.35v 23°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW5.3 FW5.5
2 3/22/2021 6:39:02 AM 0.2 mAh 0.00A 3.20v 3.20v 23°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 90 HW5.3 FW5.5
3 3/21/2021 5:35:54 PM 35.5 mAh 0.00A 3.40v 3.40v 23°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW5.3 FW5.5
4 3/21/2021 5:34:06 PM 99.9 mAh 0.00A 3.24v 3.24v 23°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 142 HW5.3 FW5.5
5 3/22/2021 6:32:31 AM 38.3 mAh 0.00A 3.13v 3.13v 23°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW5.3 FW5.5
6 3/22/2021 6:32:49 AM 13.9 mAh 0.00A 3.07v 3.07v 25°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 18 HW5.3 FW5.5
7 3/21/2021 5:37:20 PM 1.4 mAh 0.00A 3.40v 3.40v 25°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW5.3 FW5.5
8 3/22/2021 6:23:35 AM 71.5 mAh 0.00A 3.20v 3.20v 25°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 75 HW5.3 FW5.5
9 3/22/2021 6:34:40 AM 15.4 mAh 0.00A 3.34v 3.34v 25°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW5.3 FW5.5
10 3/22/2021 6:34:10 AM 28.3 mAh 0.00A 3.36v 3.36v 22°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 74 HW5.3 FW5.5
11 3/22/2021 6:34:13 AM 1.6 mAh 0.00A 3.41v 3.41v 22°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW5.3 FW5.5
12 3/22/2021 6:35:09 AM 1.4 mAh 0.00A 3.43v 3.43v 22°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW5.3 FW5.5
13 3/22/2021 6:26:35 AM 65.4 mAh 0.00A 3.24v 3.24v 22°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 55 HW5.3 FW5.5
14 3/22/2021 6:19:39 AM 187.6 mAh 0.00A 3.32v 3.32v 22°C 14°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 92 HW5.3 FW5.5
15 379.8 mAh 0.00A 3.33v 3.33v 25°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW8.0 FW8.0
16 321.6 mAh 0.00A 3.33v 3.33v 25°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW8.0 FW8.0
17 328.6 mAh 0.00A 3.31v 3.31v 25°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW8.0 FW8.0
18 352.7 mAh 0.00A 3.28v 3.28v 25°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW8.0 FW8.0
19 628.0 mAh 0.00A 3.32v 3.32v 25°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW8.0 FW8.0
20 106.8 mAh 0.00A 3.37v 3.37v 24°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW8.0 FW8.0
21 355.0 mAh 0.00A 3.36v 3.36v 24°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW8.0 FW8.0
22 158.6 mAh 0.00A 3.34v 3.34v 24°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 4 HW8.0 FW8.0
23 165.6 mAh 0.00A 3.41v 3.39v 24°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW8.0 FW8.0
24 417.9 mAh 0.00A 3.27v 3.27v 23°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW8.0 FW8.0
25 391.1 mAh 0.00A 3.18v 3.18v 23°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 4 HW8.0 FW8.0
26 363.4 mAh 0.00A 3.21v 3.21v 23°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 0 HW8.0 FW8.0
27 172.3 mAh 0.00A 3.21v 3.21v 23°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 4 HW8.0 FW8.0
28 103.0 mAh 0.00A 3.17v 3.17v 23°C 15°C 35°C 75°C 2.90v 4.20v 4.11v 0.61A 0 0 0 250 HW8.0 FW8.0
----------------------------------------------------------------------------------------
 

OffGridInTheCity

Well-known member
Joined
Dec 15, 2018
Messages
1,462
Yea - that's my trouble as well :) I think the idea is you should know what your settings are 'supposed to be' (such as low temp or max voltage / cell or x or y or z) and then look in the log to find the value that exceeds your settings - and then you'll know.

For example I see this near the top of your log "CellVolt 3.07v @ 6 3.43v @ 12 3.29v 302" - indicating a cell at 3.07v. Maybe 3.07v is below the minimum threshold you set? Or this one - "Shunt -1.5% 36ºC 46.02v -0.174A" - e.g. Shunt is at 1.5% SoC. Maybe that's too low for your settings?

If you have a constant critical event - you can also look thru your screens and look for items with 'yellow' over the label - to maybe see something more easily.
 

400bird

Member
Joined
Apr 27, 2020
Messages
78
Now I understand what you were saying. So far it is a one time event.

On the cell mon page the min cell voltage (CV2) is set to 2.9 volts.
On the critical page the lo cell volt (CV1) is set to 2.7 volts.

I cant find anywhere that has a min SOC.

Lo Shunt Volt (QV1) and Low Supply Volt (BS1) are set to 37.8v, I was well above that.
 

OffGridInTheCity

Well-known member
Joined
Dec 15, 2018
Messages
1,462
Is there anything yellow on Menu -> Control Logic -> Critical page (or any other pages under control logic)

For example, your log shows "Shunt -1.5% 36ºC 46.02v -0.174A" - e.g. shunt at 46.02v. Notice that the Critical page (below) has "Lo Shunt Volt" option. Mine is turned off, but if it was on, it would be critical if my "Lo Shunt Volt" was below 46.0v.

1616550607615.png
 

OffGridInTheCity

Well-known member
Joined
Dec 15, 2018
Messages
1,462
To confirm, you're saying you have a continuous critical alert going on? If so, maybe check the other pages under "Control Logic" besides just "Critical" - e.g. "Charging", "Discharging", "Thermal'", etc.....

From your pic above - this doesn't look good... e.g. "-40C"? I see that "Lo Ambient" is turned off and shouldn't generate a critical event so maybe its just showing junk "-40".
1616684837504.png


Next question - what mechanism is tripping your shunt? I use "Critical Pulse On" with my WM4 + Expansion.
1616685009326.png




To recap - if you having a continuous critical alert but can't find it, I'd dump the log and email Batrium support. In the past, they've helped me with 'basic' questions like this... maybe they still do.

I'd be interested in what you find out and hope you'll post :)
 

400bird

Member
Joined
Apr 27, 2020
Messages
78
This is not a constant issue. It happened one time on the first night I tried to leave the battery connected overnight.
One time only.

I have a WM5 plus expansion.
I will have to double-check the settings.
But, I have it set to "critical pulse off"
When I had it set to "critical pulse on" the pulse happened when the critical fault when away.

I have never seen an ambient temp reading displayed. I just assumed the WM5 and MM8 didn't have onboard ambient temp sensors.
 

400bird

Member
Joined
Apr 27, 2020
Messages
78
The Batrium just tripped remote tripped the breaker again. It didn't even get a snap shot this time.
 
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