MPPT 250/100 rev2 high temperature?

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duto69 asked Jul 31, '19

MPPT 250/100 rev2 high temperature?

Hi,

My system start cut off power from MPPT. When I check alarm logs, it is empty - no alarms log found. MPPT go 5 time during two minutes to OFF state. More detail info in pictures.

When I check temperature of MPPT with termal camera Flir, maximum temperature was around 45 celsius.

It happen yeasterday and today at same time.

DVCC is off

devices in system:

MultiPlus-II 48/5000/70-48
BMV-712 smart
MPPT 250/100
200Ah gel battery

https://imgur.com/a/Ot7yf2d

MPPT Controllers temperature

2 |3000

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Modifications Space

Node Red Space

Answer 1 · 2019-07-31T20:21:52Z

wkirby answered · Jul 31, 2019 at 08:21 PM

What is the configuration of your PV? Was there enough PV Voltage to maintain charge?
What about the remote on/off terminal, is that circuit closed, is the jumper in place?

1

2 |3000

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duto69 commented · Aug 01, 2019 at 04:37 AM

PV - 20 pcs of Q-cell 330Wp. There are 4 paraller with 5 in series.

PV voltage jump at top 185V and current fall down to 0A when power is cut off.

Remote on/off - the jumper is in place.

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