For last couple of months my system ( 3 x 5 KVA Quattors in 3 phase with BYD 10 KWH) randomly resets ( all the quartos go offline and come back on)
#10 Alarm system time sync error, #1 device switched off commonly seen.
Initially, I Suspected network cabling so replaced with CAT 7 high-quality cables and cleaned the network sockets with contact cleaning fluid
Also, checked if all DC connections are tight ( they are )
There seems to be no pattern to these switch offs ( observed at 2 am in the night and also during afternoon or evenings ) -
The system works fine for a couple of weeks and in one day I could face one or more restarts with associated error logs
All firmwares are the latest except Quatro which are on V430 ( latest is 464 i believe)
Quetsions
1- Is there a detailed log somewhere indicating which unit is causing the shutdown
2. Should I upgrade quattro firmsware to rule out any other issues
3. Is this the issue of any external EMF affecting the network cabling ( they run parallel to the power cables - not in my opinion as CAT 7 are each pair individually shielded )
https://www.pcgamer.com/what-are-the-differences-between-cat5-cat6-and-cat7-ethernet-cables/
https://en.wikipedia.org/wiki/ISO/IEC_11801#CAT7
Class F channel and Category 7 cable are backward compatible with Class D/Category 5e and Class E/Category 6. Class F features even stricter specifications for crosstalk and system noise than Class E. To achieve this, shielding was added for individual wire pairs and the cable as a whole. Unshielded cables rely on the quality of the twists to protect from EMI. This involves a tight twist and carefully controlled design. Cables with individual shielding per pair such as category 7 rely mostly on the shield and therefore have pairs with longer twists.
