I'm occasionally getting MPPT state 245. I can't find it defined anywhere in the doco. Does anyone know?
asked
What is MPPT state 245?
Hey! I do not have an official answer for you. But I'm seeing this too and I have noticed that this only happens under the following circumstances:
- The charger only switches to 245 if the state was 0 (off) before. Also, if the state is 245, the next state is always 3 (bulk). So it's 0 > 245 > 3
- 245 is only held for a maximum of 5s, usually much less.
- For me it only happens during the first ca. 1/2h of significant daylight in the morning and the last ca. 1/2h of significant daylight in the afternoon.
- It happens several times within these timeframes
So I am guessing this is kind of a "pre-start" or "calibrating" state right after the panels supply enough energy (threshold) for the charger to start but before actual charging begins.
For completeness' sake the full list:
| State | Meaning |
| 0 | Off |
| 2 | Fault |
| 3 | Bulk |
| 4 | Absorption |
| 5 | Float |
| 6 | Storage |
| 7 | Equalize |
| 245 | Pre-Charge / Calibrating? |
| 252 | ESS |
As per the documentation of the ve.direct hex protocol "Device state values (register 0x0201)" state 245 means "The device is about to start (signal to external control)".
