question

Riaan Barkhuizen avatar image
Riaan Barkhuizen asked

Battery Monitor[512], Alarm - High Voltage Alarms - Victron Multiplus and Pylontech Battery

Hi There,


This might be quite elementary to solve, however I keep getting high voltage alarms from the Pylontech battery at times of high solar yield.


What can be done to solve the problem. The alarms tend to show up at voltages below the recommended charge voltage settings, ie max voltage for absorption charging 53.2V and Float 53V in accordance with the manual.


I have downloaded logs for some of the alarm events, these can be found at the following link.

https://drive.google.com/open?id=19c45KZUPvGrVP4q_MgFSeSdjDPtzZu3r


Where could the alarm be triggered and why, and how could the setup/settings be changed to avoid or reduce the alarm event. At present it is a once a week occurrence.


Best Regards

Riaan

Pylontechvoltage
4 comments
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boekel avatar image boekel ♦ commented ·

What other components are you using?

And what settings?

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Riaan Barkhuizen avatar image Riaan Barkhuizen boekel ♦ commented ·

Hi Boekel,

Components:

Victron Multi, 5kVA

Smart Solar 150/70, with 12 x 330W Panels

4 x 2.4kWh Pylontech Modules


Settings as per manual on all devices, Multi setup for ESS.

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boekel avatar image boekel ♦ Riaan Barkhuizen commented ·

are all firmwares the latest? (multi, mppt, Venus)
DVCC enabled?
SVS?

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Riaan Barkhuizen avatar image Riaan Barkhuizen boekel ♦ commented ·

All updated to firmware to latest version except for battery itself.

DVCC is enabled, SVS is also enabled.

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2 Answers
Guy Stewart (Victron Community Manager) avatar image
Guy Stewart (Victron Community Manager) answered ·

Pylontech battery voltages have been reduced in firmware to help prevent this issue since it was reported.

If anyone is still experiencing this issue, please open a new question with all the details of your system, including VRM id and firmware version numbers.

More information here:

https://community.victronenergy.com/questions/11225/dvcc-and-pylontech-battery.html

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boekel avatar image
boekel answered ·

Ok, there's your problem, SVS should be off (battery updates too slow so voltage can overshoot easily.

See Manual:

https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom


screenshot-2019-04-26-192540.png (45.2 KiB)
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particle avatar image particle commented ·

I had 2x US3000 for half a year without voltage alarms and 100% SOC. SVS was on, not sure why. I added a third US3000 and now I had voltage alarms for a week, always at low charging currents. SOC reaches 97%.

SVS is off now. Battery monitor is Pylontech. When I had SVS on, behavior was the same. It seems SVS off causes 52.0 V instead of 52.4 V.

I don't worry much about 97% SOC. But should I wait longer for the alarms to hopefully go away or should I try to get the battery replaced?

3x Pylontech US3000, MPPT 250/85 rev 2, Multiplus 48/5000/70-100, Color Control GX, 6x 290 W panels (60 cells) in series, off grid.

Latest firmware 2.63 but 2.62 behaved the same.

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Daniël Boekel (Victron Energy Staff) avatar image Daniël Boekel (Victron Energy Staff) ♦♦ particle commented ·

hi @particle

new battery needs to balance, set to keep charged until it is balanced and doesn't give errors anymore.

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Related Resources

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Victron Pylontech battery compatibility guide